/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 17:49:34,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 17:49:34,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 17:49:34,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 17:49:34,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 17:49:34,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 17:49:34,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 17:49:34,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 17:49:34,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 17:49:34,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 17:49:34,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 17:49:34,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 17:49:34,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 17:49:34,614 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 17:49:34,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 17:49:34,614 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 17:49:34,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 17:49:34,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 17:49:34,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 17:49:34,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 17:49:34,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 17:49:34,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 17:49:34,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 17:49:34,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 17:49:34,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 17:49:34,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 17:49:34,616 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 17:49:34,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 17:49:34,616 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 17:49:34,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 17:49:34,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 17:49:34,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 17:49:34,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 17:49:34,803 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 17:49:34,804 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 17:49:34,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl [2022-01-18 17:49:34,804 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl' [2022-01-18 17:49:34,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 17:49:34,826 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 17:49:34,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 17:49:34,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 17:49:34,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 17:49:34,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,844 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 17:49:34,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 17:49:34,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 17:49:34,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 17:49:34,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 17:49:34,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 17:49:34,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 17:49:34,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 17:49:34,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 17:49:34,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/1) ... [2022-01-18 17:49:34,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 17:49:34,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 17:49:34,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 17:49:34,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 17:49:34,914 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 17:49:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 17:49:34,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 17:49:34,914 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 17:49:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 17:49:34,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 17:49:34,914 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 17:49:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 17:49:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 17:49:34,915 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-18 17:49:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 17:49:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 17:49:34,916 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-01-18 17:49:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 17:49:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 17:49:34,917 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 17:49:34,953 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 17:49:34,955 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 17:49:35,034 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 17:49:35,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 17:49:35,039 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 17:49:35,040 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:49:35 BoogieIcfgContainer [2022-01-18 17:49:35,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 17:49:35,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 17:49:35,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 17:49:35,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 17:49:35,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:49:34" (1/2) ... [2022-01-18 17:49:35,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6779d403 and model type easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 05:49:35, skipping insertion in model container [2022-01-18 17:49:35,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:49:35" (2/2) ... [2022-01-18 17:49:35,047 INFO L111 eAbstractionObserver]: Analyzing ICFG easy10.wvr.bpl [2022-01-18 17:49:35,053 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 17:49:35,053 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 17:49:35,053 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 17:49:35,053 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 17:49:35,083 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 17:49:35,113 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 17:49:35,117 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 17:49:35,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 17:49:35,124 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 45 transitions, 122 flow [2022-01-18 17:49:35,383 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:35,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:35,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:35,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:35,430 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:35,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:35,436 INFO L85 PathProgramCache]: Analyzing trace with hash -505665144, now seen corresponding path program 1 times [2022-01-18 17:49:35,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:35,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978891554] [2022-01-18 17:49:35,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:35,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:35,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:35,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978891554] [2022-01-18 17:49:35,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978891554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:35,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:35,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 17:49:35,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585695823] [2022-01-18 17:49:35,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:35,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 17:49:35,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:35,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 17:49:35,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 17:49:35,612 INFO L87 Difference]: Start difference. First operand has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:35,713 INFO L93 Difference]: Finished difference Result 4197 states and 14419 transitions. [2022-01-18 17:49:35,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 17:49:35,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:35,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:35,753 INFO L225 Difference]: With dead ends: 4197 [2022-01-18 17:49:35,753 INFO L226 Difference]: Without dead ends: 4197 [2022-01-18 17:49:35,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 17:49:35,759 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 19 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:35,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 56 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 17:49:35,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2022-01-18 17:49:35,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 4197. [2022-01-18 17:49:35,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4197 states, 4196 states have (on average 3.436367969494757) internal successors, (14419), 4196 states have internal predecessors, (14419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4197 states to 4197 states and 14419 transitions. [2022-01-18 17:49:35,982 INFO L78 Accepts]: Start accepts. Automaton has 4197 states and 14419 transitions. Word has length 39 [2022-01-18 17:49:35,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:35,982 INFO L470 AbstractCegarLoop]: Abstraction has 4197 states and 14419 transitions. [2022-01-18 17:49:35,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4197 states and 14419 transitions. [2022-01-18 17:49:35,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:35,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:35,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:35,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 17:49:35,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:35,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash -436205732, now seen corresponding path program 2 times [2022-01-18 17:49:35,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:35,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129889345] [2022-01-18 17:49:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:35,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:36,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:36,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129889345] [2022-01-18 17:49:36,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129889345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:36,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:36,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 17:49:36,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721332013] [2022-01-18 17:49:36,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:36,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 17:49:36,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:36,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 17:49:36,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 17:49:36,050 INFO L87 Difference]: Start difference. First operand 4197 states and 14419 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:36,093 INFO L93 Difference]: Finished difference Result 3290 states and 11077 transitions. [2022-01-18 17:49:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 17:49:36,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:36,110 INFO L225 Difference]: With dead ends: 3290 [2022-01-18 17:49:36,111 INFO L226 Difference]: Without dead ends: 3290 [2022-01-18 17:49:36,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 17:49:36,115 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:36,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 56 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 17:49:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2022-01-18 17:49:36,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3290. [2022-01-18 17:49:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 3289 states have (on average 3.367892976588629) internal successors, (11077), 3289 states have internal predecessors, (11077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 11077 transitions. [2022-01-18 17:49:36,232 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 11077 transitions. Word has length 39 [2022-01-18 17:49:36,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:36,232 INFO L470 AbstractCegarLoop]: Abstraction has 3290 states and 11077 transitions. [2022-01-18 17:49:36,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:36,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 11077 transitions. [2022-01-18 17:49:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:36,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:36,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:36,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 17:49:36,239 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:36,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:36,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1669039620, now seen corresponding path program 3 times [2022-01-18 17:49:36,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:36,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087290188] [2022-01-18 17:49:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:36,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:36,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:36,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087290188] [2022-01-18 17:49:36,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087290188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:36,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:36,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 17:49:36,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356621217] [2022-01-18 17:49:36,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:36,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 17:49:36,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:36,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 17:49:36,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 17:49:36,699 INFO L87 Difference]: Start difference. First operand 3290 states and 11077 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:38,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:38,843 INFO L93 Difference]: Finished difference Result 6515 states and 22109 transitions. [2022-01-18 17:49:38,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 17:49:38,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:38,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:38,873 INFO L225 Difference]: With dead ends: 6515 [2022-01-18 17:49:38,873 INFO L226 Difference]: Without dead ends: 6448 [2022-01-18 17:49:38,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=319, Invalid=3221, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:49:38,875 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 437 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:38,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2263 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:49:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6448 states. [2022-01-18 17:49:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6448 to 3506. [2022-01-18 17:49:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3506 states, 3505 states have (on average 3.3703281027104137) internal successors, (11813), 3505 states have internal predecessors, (11813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3506 states to 3506 states and 11813 transitions. [2022-01-18 17:49:38,981 INFO L78 Accepts]: Start accepts. Automaton has 3506 states and 11813 transitions. Word has length 39 [2022-01-18 17:49:38,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:38,981 INFO L470 AbstractCegarLoop]: Abstraction has 3506 states and 11813 transitions. [2022-01-18 17:49:38,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:38,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3506 states and 11813 transitions. [2022-01-18 17:49:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:38,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:38,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:38,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 17:49:38,991 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:38,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:38,992 INFO L85 PathProgramCache]: Analyzing trace with hash 906311706, now seen corresponding path program 4 times [2022-01-18 17:49:38,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:38,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191416173] [2022-01-18 17:49:38,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:38,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:39,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:39,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191416173] [2022-01-18 17:49:39,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191416173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:39,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:39,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 17:49:39,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971634927] [2022-01-18 17:49:39,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:39,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 17:49:39,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:39,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 17:49:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 17:49:39,307 INFO L87 Difference]: Start difference. First operand 3506 states and 11813 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:42,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:42,073 INFO L93 Difference]: Finished difference Result 8000 states and 27131 transitions. [2022-01-18 17:49:42,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-01-18 17:49:42,083 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:42,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:42,122 INFO L225 Difference]: With dead ends: 8000 [2022-01-18 17:49:42,123 INFO L226 Difference]: Without dead ends: 7957 [2022-01-18 17:49:42,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=558, Invalid=6084, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 17:49:42,125 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 549 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 3633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:42,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 2592 Invalid, 3633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:49:42,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7957 states. [2022-01-18 17:49:42,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7957 to 3706. [2022-01-18 17:49:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3705 states have (on average 3.3748987854251014) internal successors, (12504), 3705 states have internal predecessors, (12504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 12504 transitions. [2022-01-18 17:49:42,251 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 12504 transitions. Word has length 39 [2022-01-18 17:49:42,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:42,251 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 12504 transitions. [2022-01-18 17:49:42,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 12504 transitions. [2022-01-18 17:49:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:42,262 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:42,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:42,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 17:49:42,263 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:42,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash -874286596, now seen corresponding path program 5 times [2022-01-18 17:49:42,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:42,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516877253] [2022-01-18 17:49:42,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:42,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:42,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:42,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516877253] [2022-01-18 17:49:42,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516877253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:42,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:42,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 17:49:42,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136507776] [2022-01-18 17:49:42,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:42,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 17:49:42,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:42,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 17:49:42,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 17:49:42,534 INFO L87 Difference]: Start difference. First operand 3706 states and 12504 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:45,263 INFO L93 Difference]: Finished difference Result 8573 states and 29254 transitions. [2022-01-18 17:49:45,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 17:49:45,263 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:45,310 INFO L225 Difference]: With dead ends: 8573 [2022-01-18 17:49:45,310 INFO L226 Difference]: Without dead ends: 8509 [2022-01-18 17:49:45,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2177 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=568, Invalid=6238, Unknown=0, NotChecked=0, Total=6806 [2022-01-18 17:49:45,316 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 565 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 3634 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 3634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:45,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2561 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 3634 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:49:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2022-01-18 17:49:45,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 3688. [2022-01-18 17:49:45,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 3687 states have (on average 3.375915378356387) internal successors, (12447), 3687 states have internal predecessors, (12447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:45,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 12447 transitions. [2022-01-18 17:49:45,415 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 12447 transitions. Word has length 39 [2022-01-18 17:49:45,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:45,415 INFO L470 AbstractCegarLoop]: Abstraction has 3688 states and 12447 transitions. [2022-01-18 17:49:45,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:45,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 12447 transitions. [2022-01-18 17:49:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:45,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:45,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:45,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 17:49:45,424 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:45,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1283102212, now seen corresponding path program 6 times [2022-01-18 17:49:45,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:45,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610833994] [2022-01-18 17:49:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:45,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:45,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:45,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610833994] [2022-01-18 17:49:45,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610833994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:45,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:45,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 17:49:45,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812593538] [2022-01-18 17:49:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:45,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 17:49:45,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:45,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 17:49:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 17:49:45,689 INFO L87 Difference]: Start difference. First operand 3688 states and 12447 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:48,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:48,468 INFO L93 Difference]: Finished difference Result 8145 states and 27755 transitions. [2022-01-18 17:49:48,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-18 17:49:48,469 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:48,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:48,489 INFO L225 Difference]: With dead ends: 8145 [2022-01-18 17:49:48,490 INFO L226 Difference]: Without dead ends: 8015 [2022-01-18 17:49:48,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2505 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=626, Invalid=7030, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 17:49:48,492 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 569 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 4076 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 4172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:48,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 2840 Invalid, 4172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 4076 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:49:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8015 states. [2022-01-18 17:49:48,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8015 to 3664. [2022-01-18 17:49:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3663 states have (on average 3.375102375102375) internal successors, (12363), 3663 states have internal predecessors, (12363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:48,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12363 transitions. [2022-01-18 17:49:48,626 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12363 transitions. Word has length 39 [2022-01-18 17:49:48,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:48,627 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12363 transitions. [2022-01-18 17:49:48,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12363 transitions. [2022-01-18 17:49:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:48,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:48,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:48,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 17:49:48,635 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:48,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:48,635 INFO L85 PathProgramCache]: Analyzing trace with hash 554849640, now seen corresponding path program 7 times [2022-01-18 17:49:48,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:48,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819480577] [2022-01-18 17:49:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:48,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:48,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:48,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:48,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819480577] [2022-01-18 17:49:48,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819480577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:48,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:48,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:49:48,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382980068] [2022-01-18 17:49:48,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:48,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:49:48,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:48,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:49:48,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:49:48,877 INFO L87 Difference]: Start difference. First operand 3664 states and 12363 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:50,790 INFO L93 Difference]: Finished difference Result 6771 states and 22942 transitions. [2022-01-18 17:49:50,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 17:49:50,790 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:50,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:50,806 INFO L225 Difference]: With dead ends: 6771 [2022-01-18 17:49:50,807 INFO L226 Difference]: Without dead ends: 6704 [2022-01-18 17:49:50,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=371, Invalid=4051, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 17:49:50,808 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 449 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:50,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 2542 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3149 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:49:50,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2022-01-18 17:49:50,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 3680. [2022-01-18 17:49:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:50,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-01-18 17:49:50,891 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-01-18 17:49:50,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:50,892 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-01-18 17:49:50,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-01-18 17:49:50,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:50,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:50,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:50,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 17:49:50,899 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:50,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:50,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1164766330, now seen corresponding path program 8 times [2022-01-18 17:49:50,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:50,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709559165] [2022-01-18 17:49:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:50,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:51,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:51,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709559165] [2022-01-18 17:49:51,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709559165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:51,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:51,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:49:51,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056140638] [2022-01-18 17:49:51,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:51,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:49:51,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:49:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:49:51,149 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:53,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:53,959 INFO L93 Difference]: Finished difference Result 8010 states and 27138 transitions. [2022-01-18 17:49:53,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-18 17:49:53,960 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:53,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:53,978 INFO L225 Difference]: With dead ends: 8010 [2022-01-18 17:49:53,978 INFO L226 Difference]: Without dead ends: 7967 [2022-01-18 17:49:53,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2522 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=617, Invalid=7215, Unknown=0, NotChecked=0, Total=7832 [2022-01-18 17:49:53,980 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 560 mSDsluCounter, 2976 mSDsCounter, 0 mSdLazyCounter, 3890 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 3980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 3890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:53,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 2916 Invalid, 3980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 3890 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:49:53,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7967 states. [2022-01-18 17:49:54,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7967 to 3702. [2022-01-18 17:49:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3702 states, 3701 states have (on average 3.368819238043772) internal successors, (12468), 3701 states have internal predecessors, (12468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:54,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 12468 transitions. [2022-01-18 17:49:54,068 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 12468 transitions. Word has length 39 [2022-01-18 17:49:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:54,068 INFO L470 AbstractCegarLoop]: Abstraction has 3702 states and 12468 transitions. [2022-01-18 17:49:54,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 12468 transitions. [2022-01-18 17:49:54,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:54,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:54,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:54,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 17:49:54,076 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:54,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:54,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1349602664, now seen corresponding path program 9 times [2022-01-18 17:49:54,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:54,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123755246] [2022-01-18 17:49:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:54,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:54,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:54,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123755246] [2022-01-18 17:49:54,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123755246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:54,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:54,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:49:54,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071610940] [2022-01-18 17:49:54,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:54,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:49:54,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:54,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:49:54,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:49:54,326 INFO L87 Difference]: Start difference. First operand 3702 states and 12468 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:57,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:57,097 INFO L93 Difference]: Finished difference Result 8583 states and 29261 transitions. [2022-01-18 17:49:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-18 17:49:57,097 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:57,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:57,116 INFO L225 Difference]: With dead ends: 8583 [2022-01-18 17:49:57,116 INFO L226 Difference]: Without dead ends: 8519 [2022-01-18 17:49:57,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2448 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=606, Invalid=7050, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 17:49:57,118 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 574 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 3958 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 4068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 3958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:57,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 2850 Invalid, 4068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 3958 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:49:57,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8519 states. [2022-01-18 17:49:57,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8519 to 3672. [2022-01-18 17:49:57,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3671 states have (on average 3.374284935984745) internal successors, (12387), 3671 states have internal predecessors, (12387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:57,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 12387 transitions. [2022-01-18 17:49:57,216 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 12387 transitions. Word has length 39 [2022-01-18 17:49:57,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:57,216 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 12387 transitions. [2022-01-18 17:49:57,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 12387 transitions. [2022-01-18 17:49:57,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:57,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:57,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:57,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 17:49:57,223 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:57,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:57,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1970037064, now seen corresponding path program 10 times [2022-01-18 17:49:57,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:57,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680423670] [2022-01-18 17:49:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:57,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:57,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:57,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680423670] [2022-01-18 17:49:57,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680423670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:57,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:57,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:49:57,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921015163] [2022-01-18 17:49:57,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:57,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:49:57,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:57,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:49:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:49:57,447 INFO L87 Difference]: Start difference. First operand 3672 states and 12387 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:58,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:49:58,620 INFO L93 Difference]: Finished difference Result 5369 states and 18355 transitions. [2022-01-18 17:49:58,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 17:49:58,620 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:49:58,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:49:58,631 INFO L225 Difference]: With dead ends: 5369 [2022-01-18 17:49:58,632 INFO L226 Difference]: Without dead ends: 5302 [2022-01-18 17:49:58,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 17:49:58,633 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 324 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:49:58,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 1508 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2145 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:49:58,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-01-18 17:49:58,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 3680. [2022-01-18 17:49:58,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:58,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-01-18 17:49:58,714 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-01-18 17:49:58,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:49:58,715 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-01-18 17:49:58,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:49:58,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-01-18 17:49:58,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:49:58,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:49:58,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:49:58,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 17:49:58,722 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:49:58,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:49:58,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1839442216, now seen corresponding path program 11 times [2022-01-18 17:49:58,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:49:58,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613957267] [2022-01-18 17:49:58,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:49:58,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:49:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:49:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:49:58,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:49:58,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613957267] [2022-01-18 17:49:58,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613957267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:49:58,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:49:58,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:49:58,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005198275] [2022-01-18 17:49:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:49:58,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:49:58,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:49:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:49:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:49:58,954 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:00,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:00,126 INFO L93 Difference]: Finished difference Result 5357 states and 18315 transitions. [2022-01-18 17:50:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 17:50:00,127 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:00,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:00,139 INFO L225 Difference]: With dead ends: 5357 [2022-01-18 17:50:00,139 INFO L226 Difference]: Without dead ends: 5294 [2022-01-18 17:50:00,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 17:50:00,140 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 338 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:00,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 1519 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:00,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-01-18 17:50:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 3672. [2022-01-18 17:50:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3671 states have (on average 3.3731953146281666) internal successors, (12383), 3671 states have internal predecessors, (12383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:00,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 12383 transitions. [2022-01-18 17:50:00,209 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 12383 transitions. Word has length 39 [2022-01-18 17:50:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:00,210 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 12383 transitions. [2022-01-18 17:50:00,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 12383 transitions. [2022-01-18 17:50:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:00,216 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:00,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:00,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 17:50:00,217 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:00,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1703763624, now seen corresponding path program 12 times [2022-01-18 17:50:00,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:00,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097444248] [2022-01-18 17:50:00,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:00,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:00,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:00,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097444248] [2022-01-18 17:50:00,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097444248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:00,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:00,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:00,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879706401] [2022-01-18 17:50:00,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:00,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:00,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:00,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:00,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:00,458 INFO L87 Difference]: Start difference. First operand 3672 states and 12383 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:02,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:02,214 INFO L93 Difference]: Finished difference Result 5886 states and 20058 transitions. [2022-01-18 17:50:02,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-18 17:50:02,214 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:02,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:02,226 INFO L225 Difference]: With dead ends: 5886 [2022-01-18 17:50:02,227 INFO L226 Difference]: Without dead ends: 5843 [2022-01-18 17:50:02,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=372, Invalid=3788, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 17:50:02,228 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 455 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:02,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 1668 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:02,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2022-01-18 17:50:02,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 3680. [2022-01-18 17:50:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:02,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-01-18 17:50:02,300 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-01-18 17:50:02,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:02,300 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-01-18 17:50:02,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:02,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-01-18 17:50:02,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:02,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:02,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:02,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 17:50:02,308 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:02,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:02,308 INFO L85 PathProgramCache]: Analyzing trace with hash -76834678, now seen corresponding path program 13 times [2022-01-18 17:50:02,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:02,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842996077] [2022-01-18 17:50:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:02,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:02,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:02,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842996077] [2022-01-18 17:50:02,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842996077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:02,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:02,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:02,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128461157] [2022-01-18 17:50:02,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:02,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:02,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:02,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:02,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:02,543 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:04,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:04,498 INFO L93 Difference]: Finished difference Result 6732 states and 22949 transitions. [2022-01-18 17:50:04,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 17:50:04,499 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:04,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:04,512 INFO L225 Difference]: With dead ends: 6732 [2022-01-18 17:50:04,512 INFO L226 Difference]: Without dead ends: 6680 [2022-01-18 17:50:04,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1378 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=407, Invalid=4423, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 17:50:04,514 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 497 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 2756 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:04,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 1983 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2756 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:50:04,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2022-01-18 17:50:04,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 3674. [2022-01-18 17:50:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:04,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-01-18 17:50:04,588 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-01-18 17:50:04,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:04,589 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-01-18 17:50:04,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:04,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-01-18 17:50:04,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:04,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:04,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:04,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 17:50:04,596 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:04,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1672720102, now seen corresponding path program 14 times [2022-01-18 17:50:04,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:04,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326245860] [2022-01-18 17:50:04,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:04,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:04,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:04,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326245860] [2022-01-18 17:50:04,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326245860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:04,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:04,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:04,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766497882] [2022-01-18 17:50:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:04,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:04,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:04,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:04,827 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:06,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:06,061 INFO L93 Difference]: Finished difference Result 5446 states and 18508 transitions. [2022-01-18 17:50:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 17:50:06,061 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:06,073 INFO L225 Difference]: With dead ends: 5446 [2022-01-18 17:50:06,073 INFO L226 Difference]: Without dead ends: 5391 [2022-01-18 17:50:06,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=240, Invalid=2210, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 17:50:06,074 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 367 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:06,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1515 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5391 states. [2022-01-18 17:50:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5391 to 3676. [2022-01-18 17:50:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3675 states have (on average 3.371700680272109) internal successors, (12391), 3675 states have internal predecessors, (12391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:06,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12391 transitions. [2022-01-18 17:50:06,139 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12391 transitions. Word has length 39 [2022-01-18 17:50:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:06,139 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12391 transitions. [2022-01-18 17:50:06,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:06,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12391 transitions. [2022-01-18 17:50:06,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:06,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:06,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:06,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 17:50:06,145 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:06,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:06,146 INFO L85 PathProgramCache]: Analyzing trace with hash -500067880, now seen corresponding path program 15 times [2022-01-18 17:50:06,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:06,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762018613] [2022-01-18 17:50:06,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:06,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:06,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:06,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:06,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762018613] [2022-01-18 17:50:06,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762018613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:06,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:06,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:06,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139684554] [2022-01-18 17:50:06,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:06,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:06,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:06,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:06,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:06,366 INFO L87 Difference]: Start difference. First operand 3676 states and 12391 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:07,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:07,767 INFO L93 Difference]: Finished difference Result 6214 states and 21239 transitions. [2022-01-18 17:50:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 17:50:07,768 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:07,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:07,780 INFO L225 Difference]: With dead ends: 6214 [2022-01-18 17:50:07,780 INFO L226 Difference]: Without dead ends: 6150 [2022-01-18 17:50:07,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=2595, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:50:07,781 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 364 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:07,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1854 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:07,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2022-01-18 17:50:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 3670. [2022-01-18 17:50:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 3669 states have (on average 3.373671300081766) internal successors, (12378), 3669 states have internal predecessors, (12378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12378 transitions. [2022-01-18 17:50:07,852 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12378 transitions. Word has length 39 [2022-01-18 17:50:07,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:07,854 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12378 transitions. [2022-01-18 17:50:07,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:07,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12378 transitions. [2022-01-18 17:50:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:07,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:07,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:07,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 17:50:07,861 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:07,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:07,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1741980442, now seen corresponding path program 16 times [2022-01-18 17:50:07,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:07,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223212451] [2022-01-18 17:50:07,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:07,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:08,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:08,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223212451] [2022-01-18 17:50:08,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223212451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:08,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:08,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:08,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385705915] [2022-01-18 17:50:08,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:08,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:08,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:08,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:08,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:08,095 INFO L87 Difference]: Start difference. First operand 3670 states and 12378 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:11,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:11,133 INFO L93 Difference]: Finished difference Result 8269 states and 28029 transitions. [2022-01-18 17:50:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 17:50:11,134 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:11,150 INFO L225 Difference]: With dead ends: 8269 [2022-01-18 17:50:11,151 INFO L226 Difference]: Without dead ends: 8132 [2022-01-18 17:50:11,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2947 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=681, Invalid=8249, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 17:50:11,152 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 618 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 4565 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 4673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 4565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:11,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 3195 Invalid, 4673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 4565 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:50:11,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8132 states. [2022-01-18 17:50:11,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8132 to 3674. [2022-01-18 17:50:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:11,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-01-18 17:50:11,229 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-01-18 17:50:11,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:11,229 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-01-18 17:50:11,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-01-18 17:50:11,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:11,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:11,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:11,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 17:50:11,236 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash 247089542, now seen corresponding path program 17 times [2022-01-18 17:50:11,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:11,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509243897] [2022-01-18 17:50:11,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:11,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:11,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:11,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509243897] [2022-01-18 17:50:11,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509243897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:11,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:11,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:11,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784881087] [2022-01-18 17:50:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:11,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:11,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:11,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:11,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:11,471 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:13,110 INFO L93 Difference]: Finished difference Result 5915 states and 20130 transitions. [2022-01-18 17:50:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 17:50:13,111 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:13,122 INFO L225 Difference]: With dead ends: 5915 [2022-01-18 17:50:13,123 INFO L226 Difference]: Without dead ends: 5851 [2022-01-18 17:50:13,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=347, Invalid=3559, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 17:50:13,124 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 457 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:13,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1650 Invalid, 2571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:13,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2022-01-18 17:50:13,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 3674. [2022-01-18 17:50:13,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:13,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-01-18 17:50:13,188 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-01-18 17:50:13,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:13,189 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-01-18 17:50:13,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:13,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-01-18 17:50:13,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:13,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:13,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:13,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 17:50:13,195 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:13,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:13,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1165573112, now seen corresponding path program 18 times [2022-01-18 17:50:13,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:13,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023783586] [2022-01-18 17:50:13,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:13,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:13,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:13,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:13,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023783586] [2022-01-18 17:50:13,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023783586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:13,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:13,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:13,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906183162] [2022-01-18 17:50:13,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:13,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:13,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:13,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:13,395 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:14,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:14,621 INFO L93 Difference]: Finished difference Result 5506 states and 18666 transitions. [2022-01-18 17:50:14,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:50:14,621 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:14,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:14,632 INFO L225 Difference]: With dead ends: 5506 [2022-01-18 17:50:14,632 INFO L226 Difference]: Without dead ends: 5451 [2022-01-18 17:50:14,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:50:14,633 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 366 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:14,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1583 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:14,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2022-01-18 17:50:14,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 3680. [2022-01-18 17:50:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.3707529219896712) internal successors, (12401), 3679 states have internal predecessors, (12401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12401 transitions. [2022-01-18 17:50:14,707 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12401 transitions. Word has length 39 [2022-01-18 17:50:14,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:14,707 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12401 transitions. [2022-01-18 17:50:14,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:14,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12401 transitions. [2022-01-18 17:50:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:14,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:14,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:14,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 17:50:14,713 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:14,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1956741962, now seen corresponding path program 19 times [2022-01-18 17:50:14,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:14,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779798020] [2022-01-18 17:50:14,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:14,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:14,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:14,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:14,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779798020] [2022-01-18 17:50:14,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779798020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:14,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:14,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:14,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231718466] [2022-01-18 17:50:14,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:14,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:14,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:14,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:14,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:14,950 INFO L87 Difference]: Start difference. First operand 3680 states and 12401 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:16,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:16,402 INFO L93 Difference]: Finished difference Result 6334 states and 21534 transitions. [2022-01-18 17:50:16,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:50:16,402 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:16,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:16,415 INFO L225 Difference]: With dead ends: 6334 [2022-01-18 17:50:16,415 INFO L226 Difference]: Without dead ends: 6274 [2022-01-18 17:50:16,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=268, Invalid=2702, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 17:50:16,416 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 408 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:16,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1857 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:16,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2022-01-18 17:50:16,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 3678. [2022-01-18 17:50:16,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3677 states have (on average 3.3712265433777535) internal successors, (12396), 3677 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:16,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 12396 transitions. [2022-01-18 17:50:16,480 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 12396 transitions. Word has length 39 [2022-01-18 17:50:16,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:16,481 INFO L470 AbstractCegarLoop]: Abstraction has 3678 states and 12396 transitions. [2022-01-18 17:50:16,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 12396 transitions. [2022-01-18 17:50:16,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:16,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:16,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:16,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 17:50:16,486 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:16,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:16,487 INFO L85 PathProgramCache]: Analyzing trace with hash 258658792, now seen corresponding path program 20 times [2022-01-18 17:50:16,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:16,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317651779] [2022-01-18 17:50:16,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:16,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:16,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:16,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317651779] [2022-01-18 17:50:16,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317651779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:16,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:16,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 17:50:16,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196273684] [2022-01-18 17:50:16,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:16,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 17:50:16,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 17:50:16,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 17:50:16,677 INFO L87 Difference]: Start difference. First operand 3678 states and 12396 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:18,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:18,011 INFO L93 Difference]: Finished difference Result 6245 states and 21321 transitions. [2022-01-18 17:50:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 17:50:18,011 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:18,023 INFO L225 Difference]: With dead ends: 6245 [2022-01-18 17:50:18,023 INFO L226 Difference]: Without dead ends: 6169 [2022-01-18 17:50:18,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=2307, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 17:50:18,024 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 362 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:18,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1691 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:18,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-01-18 17:50:18,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 3686. [2022-01-18 17:50:18,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3686 states, 3685 states have (on average 3.368249660786974) internal successors, (12412), 3685 states have internal predecessors, (12412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 12412 transitions. [2022-01-18 17:50:18,080 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 12412 transitions. Word has length 39 [2022-01-18 17:50:18,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:18,080 INFO L470 AbstractCegarLoop]: Abstraction has 3686 states and 12412 transitions. [2022-01-18 17:50:18,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 12412 transitions. [2022-01-18 17:50:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:18,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:18,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:18,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 17:50:18,086 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash -759394820, now seen corresponding path program 21 times [2022-01-18 17:50:18,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:18,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748383645] [2022-01-18 17:50:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:18,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:18,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:18,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748383645] [2022-01-18 17:50:18,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748383645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:18,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:18,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:18,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078856608] [2022-01-18 17:50:18,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:18,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:18,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:18,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:18,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:18,333 INFO L87 Difference]: Start difference. First operand 3686 states and 12412 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:19,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:19,723 INFO L93 Difference]: Finished difference Result 6227 states and 21267 transitions. [2022-01-18 17:50:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:50:19,723 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:19,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:19,736 INFO L225 Difference]: With dead ends: 6227 [2022-01-18 17:50:19,736 INFO L226 Difference]: Without dead ends: 6149 [2022-01-18 17:50:19,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=2603, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:50:19,737 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 393 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:19,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 1850 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:19,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6149 states. [2022-01-18 17:50:19,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6149 to 3666. [2022-01-18 17:50:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3665 states have (on average 3.3735334242837656) internal successors, (12364), 3665 states have internal predecessors, (12364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 12364 transitions. [2022-01-18 17:50:19,798 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 12364 transitions. Word has length 39 [2022-01-18 17:50:19,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:19,799 INFO L470 AbstractCegarLoop]: Abstraction has 3666 states and 12364 transitions. [2022-01-18 17:50:19,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 12364 transitions. [2022-01-18 17:50:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:19,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:19,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:19,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 17:50:19,804 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:19,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:19,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1124716894, now seen corresponding path program 22 times [2022-01-18 17:50:19,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:19,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550725095] [2022-01-18 17:50:19,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:19,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:20,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:20,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550725095] [2022-01-18 17:50:20,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550725095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:20,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:20,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:20,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372417532] [2022-01-18 17:50:20,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:20,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:20,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:20,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:20,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:20,048 INFO L87 Difference]: Start difference. First operand 3666 states and 12364 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:21,964 INFO L93 Difference]: Finished difference Result 6811 states and 23006 transitions. [2022-01-18 17:50:21,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 17:50:21,975 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:21,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:21,990 INFO L225 Difference]: With dead ends: 6811 [2022-01-18 17:50:21,990 INFO L226 Difference]: Without dead ends: 6744 [2022-01-18 17:50:21,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=354, Invalid=3806, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 17:50:21,991 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 461 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 3317 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:21,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 2653 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3317 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:50:21,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2022-01-18 17:50:22,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 3744. [2022-01-18 17:50:22,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 3743 states have (on average 3.3745658562650283) internal successors, (12631), 3743 states have internal predecessors, (12631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:22,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 12631 transitions. [2022-01-18 17:50:22,061 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 12631 transitions. Word has length 39 [2022-01-18 17:50:22,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:22,061 INFO L470 AbstractCegarLoop]: Abstraction has 3744 states and 12631 transitions. [2022-01-18 17:50:22,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 12631 transitions. [2022-01-18 17:50:22,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:22,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:22,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:22,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 17:50:22,067 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:22,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:22,067 INFO L85 PathProgramCache]: Analyzing trace with hash -594899076, now seen corresponding path program 23 times [2022-01-18 17:50:22,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:22,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895629415] [2022-01-18 17:50:22,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:22,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:22,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:22,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895629415] [2022-01-18 17:50:22,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895629415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:22,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:22,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:22,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800804009] [2022-01-18 17:50:22,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:22,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:22,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:22,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:22,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:22,284 INFO L87 Difference]: Start difference. First operand 3744 states and 12631 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:24,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:24,936 INFO L93 Difference]: Finished difference Result 8158 states and 27612 transitions. [2022-01-18 17:50:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-01-18 17:50:24,937 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:24,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:24,953 INFO L225 Difference]: With dead ends: 8158 [2022-01-18 17:50:24,953 INFO L226 Difference]: Without dead ends: 8115 [2022-01-18 17:50:24,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2311 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=586, Invalid=6724, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 17:50:24,954 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 570 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 4117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:24,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 3010 Invalid, 4117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:50:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-01-18 17:50:25,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 3846. [2022-01-18 17:50:25,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3845 states have (on average 3.376332899869961) internal successors, (12982), 3845 states have internal predecessors, (12982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 12982 transitions. [2022-01-18 17:50:25,027 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 12982 transitions. Word has length 39 [2022-01-18 17:50:25,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:25,027 INFO L470 AbstractCegarLoop]: Abstraction has 3846 states and 12982 transitions. [2022-01-18 17:50:25,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:25,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 12982 transitions. [2022-01-18 17:50:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:25,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:25,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:25,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 17:50:25,033 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:25,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1919469918, now seen corresponding path program 24 times [2022-01-18 17:50:25,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:25,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859105103] [2022-01-18 17:50:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:25,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:25,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:25,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:25,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859105103] [2022-01-18 17:50:25,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859105103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:25,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:25,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:25,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714442671] [2022-01-18 17:50:25,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:25,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:25,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:25,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:25,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:25,250 INFO L87 Difference]: Start difference. First operand 3846 states and 12982 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:27,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:27,938 INFO L93 Difference]: Finished difference Result 8413 states and 28598 transitions. [2022-01-18 17:50:27,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 17:50:27,938 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:27,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:27,955 INFO L225 Difference]: With dead ends: 8413 [2022-01-18 17:50:27,955 INFO L226 Difference]: Without dead ends: 8349 [2022-01-18 17:50:27,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2306 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=585, Invalid=6725, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 17:50:27,956 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 571 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 4202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:27,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 2962 Invalid, 4202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:50:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8349 states. [2022-01-18 17:50:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8349 to 3816. [2022-01-18 17:50:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3816 states, 3815 states have (on average 3.381651376146789) internal successors, (12901), 3815 states have internal predecessors, (12901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:28,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 12901 transitions. [2022-01-18 17:50:28,028 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 12901 transitions. Word has length 39 [2022-01-18 17:50:28,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:28,028 INFO L470 AbstractCegarLoop]: Abstraction has 3816 states and 12901 transitions. [2022-01-18 17:50:28,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 12901 transitions. [2022-01-18 17:50:28,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:28,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:28,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:28,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 17:50:28,034 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:28,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:28,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1755062978, now seen corresponding path program 25 times [2022-01-18 17:50:28,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:28,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271734195] [2022-01-18 17:50:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:28,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:28,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:28,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271734195] [2022-01-18 17:50:28,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271734195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:28,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:28,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:28,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355268153] [2022-01-18 17:50:28,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:28,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:28,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:28,248 INFO L87 Difference]: Start difference. First operand 3816 states and 12901 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:29,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:29,418 INFO L93 Difference]: Finished difference Result 5619 states and 19160 transitions. [2022-01-18 17:50:29,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 17:50:29,418 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:29,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:29,429 INFO L225 Difference]: With dead ends: 5619 [2022-01-18 17:50:29,429 INFO L226 Difference]: Without dead ends: 5552 [2022-01-18 17:50:29,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 17:50:29,430 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 342 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:29,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 1609 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:29,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2022-01-18 17:50:29,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 3844. [2022-01-18 17:50:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3843 states have (on average 3.3778298204527712) internal successors, (12981), 3843 states have internal predecessors, (12981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 12981 transitions. [2022-01-18 17:50:29,491 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 12981 transitions. Word has length 39 [2022-01-18 17:50:29,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:29,492 INFO L470 AbstractCegarLoop]: Abstraction has 3844 states and 12981 transitions. [2022-01-18 17:50:29,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 12981 transitions. [2022-01-18 17:50:29,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:29,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:29,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:29,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 17:50:29,498 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:29,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:29,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1885657826, now seen corresponding path program 26 times [2022-01-18 17:50:29,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:29,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009114110] [2022-01-18 17:50:29,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:29,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:29,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:29,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:29,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009114110] [2022-01-18 17:50:29,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009114110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:29,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:29,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:29,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065646261] [2022-01-18 17:50:29,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:29,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:29,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:29,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:29,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:29,713 INFO L87 Difference]: Start difference. First operand 3844 states and 12981 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:30,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:30,923 INFO L93 Difference]: Finished difference Result 5607 states and 19120 transitions. [2022-01-18 17:50:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:50:30,924 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:30,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:30,935 INFO L225 Difference]: With dead ends: 5607 [2022-01-18 17:50:30,935 INFO L226 Difference]: Without dead ends: 5544 [2022-01-18 17:50:30,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=2037, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 17:50:30,935 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 348 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:30,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 1633 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:30,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2022-01-18 17:50:30,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 3836. [2022-01-18 17:50:30,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3836 states, 3835 states have (on average 3.3796610169491523) internal successors, (12961), 3835 states have internal predecessors, (12961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:30,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 12961 transitions. [2022-01-18 17:50:30,995 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 12961 transitions. Word has length 39 [2022-01-18 17:50:30,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:30,995 INFO L470 AbstractCegarLoop]: Abstraction has 3836 states and 12961 transitions. [2022-01-18 17:50:30,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:30,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 12961 transitions. [2022-01-18 17:50:31,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:31,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:31,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:31,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 17:50:31,001 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:31,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:31,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2021336418, now seen corresponding path program 27 times [2022-01-18 17:50:31,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:31,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353839798] [2022-01-18 17:50:31,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:31,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:31,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:31,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353839798] [2022-01-18 17:50:31,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353839798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:31,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:31,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:31,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328193114] [2022-01-18 17:50:31,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:31,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:31,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:31,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:31,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:31,203 INFO L87 Difference]: Start difference. First operand 3836 states and 12961 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:32,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:32,928 INFO L93 Difference]: Finished difference Result 6152 states and 20955 transitions. [2022-01-18 17:50:32,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 17:50:32,928 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:32,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:32,940 INFO L225 Difference]: With dead ends: 6152 [2022-01-18 17:50:32,940 INFO L226 Difference]: Without dead ends: 6109 [2022-01-18 17:50:32,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=367, Invalid=3793, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 17:50:32,941 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 469 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:32,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 1778 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6109 states. [2022-01-18 17:50:32,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6109 to 3864. [2022-01-18 17:50:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 3863 states have (on average 3.3779446026404347) internal successors, (13049), 3863 states have internal predecessors, (13049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:33,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 13049 transitions. [2022-01-18 17:50:33,007 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 13049 transitions. Word has length 39 [2022-01-18 17:50:33,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:33,007 INFO L470 AbstractCegarLoop]: Abstraction has 3864 states and 13049 transitions. [2022-01-18 17:50:33,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:33,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 13049 transitions. [2022-01-18 17:50:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:33,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:33,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:33,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 17:50:33,013 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:33,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:33,013 INFO L85 PathProgramCache]: Analyzing trace with hash 493032576, now seen corresponding path program 28 times [2022-01-18 17:50:33,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:33,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976128280] [2022-01-18 17:50:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:33,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:33,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:33,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976128280] [2022-01-18 17:50:33,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976128280] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:33,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:33,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:33,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009131249] [2022-01-18 17:50:33,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:33,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:33,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:33,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:33,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:33,230 INFO L87 Difference]: Start difference. First operand 3864 states and 13049 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:35,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:35,085 INFO L93 Difference]: Finished difference Result 6998 states and 23846 transitions. [2022-01-18 17:50:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 17:50:35,085 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:35,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:35,099 INFO L225 Difference]: With dead ends: 6998 [2022-01-18 17:50:35,099 INFO L226 Difference]: Without dead ends: 6946 [2022-01-18 17:50:35,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=402, Invalid=4428, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 17:50:35,100 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 510 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:35,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2093 Invalid, 2973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:50:35,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2022-01-18 17:50:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 3852. [2022-01-18 17:50:35,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3851 states have (on average 3.379641651519086) internal successors, (13015), 3851 states have internal predecessors, (13015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:35,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 13015 transitions. [2022-01-18 17:50:35,168 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 13015 transitions. Word has length 39 [2022-01-18 17:50:35,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:35,169 INFO L470 AbstractCegarLoop]: Abstraction has 3852 states and 13015 transitions. [2022-01-18 17:50:35,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:35,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 13015 transitions. [2022-01-18 17:50:35,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:35,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:35,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:35,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 17:50:35,174 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:35,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1102852848, now seen corresponding path program 29 times [2022-01-18 17:50:35,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:35,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301251821] [2022-01-18 17:50:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:35,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:35,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:35,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301251821] [2022-01-18 17:50:35,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301251821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:35,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:35,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:35,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886226106] [2022-01-18 17:50:35,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:35,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:35,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:35,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:35,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:35,412 INFO L87 Difference]: Start difference. First operand 3852 states and 13015 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:36,715 INFO L93 Difference]: Finished difference Result 5751 states and 19448 transitions. [2022-01-18 17:50:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 17:50:36,716 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:36,726 INFO L225 Difference]: With dead ends: 5751 [2022-01-18 17:50:36,726 INFO L226 Difference]: Without dead ends: 5696 [2022-01-18 17:50:36,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=2302, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 17:50:36,727 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 375 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:36,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1651 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:36,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5696 states. [2022-01-18 17:50:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5696 to 3854. [2022-01-18 17:50:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3786659745652736) internal successors, (13018), 3853 states have internal predecessors, (13018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:36,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13018 transitions. [2022-01-18 17:50:36,780 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13018 transitions. Word has length 39 [2022-01-18 17:50:36,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:36,780 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13018 transitions. [2022-01-18 17:50:36,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:36,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13018 transitions. [2022-01-18 17:50:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:36,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:36,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:36,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 17:50:36,787 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:36,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash 69799374, now seen corresponding path program 30 times [2022-01-18 17:50:36,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:36,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454816993] [2022-01-18 17:50:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:36,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:36,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:36,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454816993] [2022-01-18 17:50:36,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454816993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:36,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:36,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:36,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835657001] [2022-01-18 17:50:36,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:36,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:36,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:36,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:36,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:36,992 INFO L87 Difference]: Start difference. First operand 3854 states and 13018 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:38,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:38,409 INFO L93 Difference]: Finished difference Result 6544 states and 22225 transitions. [2022-01-18 17:50:38,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 17:50:38,409 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:38,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:38,423 INFO L225 Difference]: With dead ends: 6544 [2022-01-18 17:50:38,423 INFO L226 Difference]: Without dead ends: 6498 [2022-01-18 17:50:38,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=265, Invalid=2597, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:50:38,424 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 398 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:38,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1984 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:38,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2022-01-18 17:50:38,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 3858. [2022-01-18 17:50:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3772361939331086) internal successors, (13026), 3857 states have internal predecessors, (13026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13026 transitions. [2022-01-18 17:50:38,491 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13026 transitions. Word has length 39 [2022-01-18 17:50:38,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:38,491 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13026 transitions. [2022-01-18 17:50:38,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13026 transitions. [2022-01-18 17:50:38,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:38,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:38,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:38,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 17:50:38,498 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:38,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -177666788, now seen corresponding path program 31 times [2022-01-18 17:50:38,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:38,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864102834] [2022-01-18 17:50:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:38,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:38,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:38,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:38,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864102834] [2022-01-18 17:50:38,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864102834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:38,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:38,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:38,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623279964] [2022-01-18 17:50:38,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:38,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:38,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:38,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:38,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:38,731 INFO L87 Difference]: Start difference. First operand 3858 states and 13026 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:40,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:40,097 INFO L93 Difference]: Finished difference Result 5686 states and 19337 transitions. [2022-01-18 17:50:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 17:50:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:40,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:40,108 INFO L225 Difference]: With dead ends: 5686 [2022-01-18 17:50:40,109 INFO L226 Difference]: Without dead ends: 5637 [2022-01-18 17:50:40,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=2394, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:50:40,109 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 366 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:40,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1734 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5637 states. [2022-01-18 17:50:40,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5637 to 3848. [2022-01-18 17:50:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.3805562776189237) internal successors, (13005), 3847 states have internal predecessors, (13005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 13005 transitions. [2022-01-18 17:50:40,185 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 13005 transitions. Word has length 39 [2022-01-18 17:50:40,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:40,185 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 13005 transitions. [2022-01-18 17:50:40,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:40,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 13005 transitions. [2022-01-18 17:50:40,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:40,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:40,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:40,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 17:50:40,191 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:40,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:40,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1361208734, now seen corresponding path program 32 times [2022-01-18 17:50:40,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:40,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489286860] [2022-01-18 17:50:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:40,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:40,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:40,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489286860] [2022-01-18 17:50:40,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489286860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:40,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:40,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:40,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096648478] [2022-01-18 17:50:40,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:40,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:40,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:40,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:40,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:40,414 INFO L87 Difference]: Start difference. First operand 3848 states and 13005 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:41,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:41,551 INFO L93 Difference]: Finished difference Result 5607 states and 19154 transitions. [2022-01-18 17:50:41,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 17:50:41,551 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:41,562 INFO L225 Difference]: With dead ends: 5607 [2022-01-18 17:50:41,562 INFO L226 Difference]: Without dead ends: 5540 [2022-01-18 17:50:41,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=1627, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 17:50:41,563 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 336 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:41,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1633 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:41,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2022-01-18 17:50:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 3888. [2022-01-18 17:50:41,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 3887 states have (on average 3.373552868536146) internal successors, (13113), 3887 states have internal predecessors, (13113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:41,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 13113 transitions. [2022-01-18 17:50:41,622 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 13113 transitions. Word has length 39 [2022-01-18 17:50:41,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:41,622 INFO L470 AbstractCegarLoop]: Abstraction has 3888 states and 13113 transitions. [2022-01-18 17:50:41,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:41,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 13113 transitions. [2022-01-18 17:50:41,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:41,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:41,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:41,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 17:50:41,628 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:41,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:41,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1230613886, now seen corresponding path program 33 times [2022-01-18 17:50:41,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:41,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347369358] [2022-01-18 17:50:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:41,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:41,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:41,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347369358] [2022-01-18 17:50:41,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347369358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:41,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:41,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:41,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244438842] [2022-01-18 17:50:41,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:41,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:41,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:41,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:41,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:41,841 INFO L87 Difference]: Start difference. First operand 3888 states and 13113 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:43,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:43,000 INFO L93 Difference]: Finished difference Result 5595 states and 19114 transitions. [2022-01-18 17:50:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 17:50:43,000 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:43,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:43,011 INFO L225 Difference]: With dead ends: 5595 [2022-01-18 17:50:43,011 INFO L226 Difference]: Without dead ends: 5532 [2022-01-18 17:50:43,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=1705, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 17:50:43,012 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 347 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:43,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1642 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:43,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2022-01-18 17:50:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 3880. [2022-01-18 17:50:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 3879 states have (on average 3.3743232791956688) internal successors, (13089), 3879 states have internal predecessors, (13089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:43,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 13089 transitions. [2022-01-18 17:50:43,072 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 13089 transitions. Word has length 39 [2022-01-18 17:50:43,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:43,072 INFO L470 AbstractCegarLoop]: Abstraction has 3880 states and 13089 transitions. [2022-01-18 17:50:43,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 13089 transitions. [2022-01-18 17:50:43,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:43,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:43,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:43,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 17:50:43,078 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:43,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:43,078 INFO L85 PathProgramCache]: Analyzing trace with hash 700713438, now seen corresponding path program 34 times [2022-01-18 17:50:43,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:43,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077705648] [2022-01-18 17:50:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:43,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:43,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:43,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077705648] [2022-01-18 17:50:43,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077705648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:43,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:43,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:43,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095993501] [2022-01-18 17:50:43,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:43,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:43,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:43,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:43,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:43,287 INFO L87 Difference]: Start difference. First operand 3880 states and 13089 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:44,451 INFO L93 Difference]: Finished difference Result 5619 states and 19174 transitions. [2022-01-18 17:50:44,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 17:50:44,452 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:44,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:44,463 INFO L225 Difference]: With dead ends: 5619 [2022-01-18 17:50:44,463 INFO L226 Difference]: Without dead ends: 5496 [2022-01-18 17:50:44,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 17:50:44,464 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 346 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:44,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1712 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:44,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5496 states. [2022-01-18 17:50:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5496 to 3848. [2022-01-18 17:50:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.376397192617624) internal successors, (12989), 3847 states have internal predecessors, (12989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12989 transitions. [2022-01-18 17:50:44,531 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12989 transitions. Word has length 39 [2022-01-18 17:50:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:44,531 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12989 transitions. [2022-01-18 17:50:44,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12989 transitions. [2022-01-18 17:50:44,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:44,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:44,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:44,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 17:50:44,537 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:44,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash -17697732, now seen corresponding path program 35 times [2022-01-18 17:50:44,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:44,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88530395] [2022-01-18 17:50:44,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:44,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:44,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:44,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88530395] [2022-01-18 17:50:44,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88530395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:44,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:44,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:44,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579736446] [2022-01-18 17:50:44,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:44,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:44,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:44,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:44,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:44,753 INFO L87 Difference]: Start difference. First operand 3848 states and 12989 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:46,450 INFO L93 Difference]: Finished difference Result 6258 states and 21345 transitions. [2022-01-18 17:50:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 17:50:46,450 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:46,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:46,463 INFO L225 Difference]: With dead ends: 6258 [2022-01-18 17:50:46,463 INFO L226 Difference]: Without dead ends: 6215 [2022-01-18 17:50:46,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=354, Invalid=3552, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 17:50:46,464 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 471 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 2673 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:46,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1915 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2673 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:50:46,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2022-01-18 17:50:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 3862. [2022-01-18 17:50:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.374773374773375) internal successors, (13030), 3861 states have internal predecessors, (13030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13030 transitions. [2022-01-18 17:50:46,527 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13030 transitions. Word has length 39 [2022-01-18 17:50:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:46,527 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13030 transitions. [2022-01-18 17:50:46,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13030 transitions. [2022-01-18 17:50:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:46,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:46,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:46,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 17:50:46,533 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:46,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1798296034, now seen corresponding path program 36 times [2022-01-18 17:50:46,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:46,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118236884] [2022-01-18 17:50:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:46,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:46,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:46,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118236884] [2022-01-18 17:50:46,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118236884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:46,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:46,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:46,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195471674] [2022-01-18 17:50:46,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:46,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:46,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:46,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:46,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:46,753 INFO L87 Difference]: Start difference. First operand 3862 states and 13030 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:48,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:48,670 INFO L93 Difference]: Finished difference Result 7119 states and 24275 transitions. [2022-01-18 17:50:48,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-18 17:50:48,670 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:48,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:48,684 INFO L225 Difference]: With dead ends: 7119 [2022-01-18 17:50:48,684 INFO L226 Difference]: Without dead ends: 7067 [2022-01-18 17:50:48,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1323 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=396, Invalid=4296, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 17:50:48,685 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 516 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:48,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 2252 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:50:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2022-01-18 17:50:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 3854. [2022-01-18 17:50:48,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3765896703867115) internal successors, (13010), 3853 states have internal predecessors, (13010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13010 transitions. [2022-01-18 17:50:48,748 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13010 transitions. Word has length 39 [2022-01-18 17:50:48,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:48,748 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13010 transitions. [2022-01-18 17:50:48,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:48,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13010 transitions. [2022-01-18 17:50:48,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:48,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:48,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:48,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 17:50:48,753 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:48,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:48,754 INFO L85 PathProgramCache]: Analyzing trace with hash 900785838, now seen corresponding path program 37 times [2022-01-18 17:50:48,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:48,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631707290] [2022-01-18 17:50:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:48,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:48,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:48,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631707290] [2022-01-18 17:50:48,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631707290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:48,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:48,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:48,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932154349] [2022-01-18 17:50:48,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:48,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:48,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:48,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:48,974 INFO L87 Difference]: Start difference. First operand 3854 states and 13010 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:50,217 INFO L93 Difference]: Finished difference Result 5789 states and 19585 transitions. [2022-01-18 17:50:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 17:50:50,218 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:50,229 INFO L225 Difference]: With dead ends: 5789 [2022-01-18 17:50:50,229 INFO L226 Difference]: Without dead ends: 5734 [2022-01-18 17:50:50,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=2117, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:50:50,230 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 399 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:50,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1665 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2022-01-18 17:50:50,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 3862. [2022-01-18 17:50:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375809375809376) internal successors, (13034), 3861 states have internal predecessors, (13034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:50,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13034 transitions. [2022-01-18 17:50:50,290 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13034 transitions. Word has length 39 [2022-01-18 17:50:50,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:50,290 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13034 transitions. [2022-01-18 17:50:50,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13034 transitions. [2022-01-18 17:50:50,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:50,296 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:50,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:50,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 17:50:50,296 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:50,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:50,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2073438060, now seen corresponding path program 38 times [2022-01-18 17:50:50,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:50,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425424676] [2022-01-18 17:50:50,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:50,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:50,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:50,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425424676] [2022-01-18 17:50:50,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425424676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:50,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:50,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:50,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583231664] [2022-01-18 17:50:50,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:50,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:50,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:50,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:50,514 INFO L87 Difference]: Start difference. First operand 3862 states and 13034 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:51,954 INFO L93 Difference]: Finished difference Result 6650 states and 22519 transitions. [2022-01-18 17:50:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:50:51,954 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:51,968 INFO L225 Difference]: With dead ends: 6650 [2022-01-18 17:50:51,968 INFO L226 Difference]: Without dead ends: 6590 [2022-01-18 17:50:51,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:50:51,968 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 429 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 2696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:51,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2022 Invalid, 2696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2022-01-18 17:50:52,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 3860. [2022-01-18 17:50:52,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 3859 states have (on average 3.3762632806426534) internal successors, (13029), 3859 states have internal predecessors, (13029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 13029 transitions. [2022-01-18 17:50:52,032 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 13029 transitions. Word has length 39 [2022-01-18 17:50:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:52,032 INFO L470 AbstractCegarLoop]: Abstraction has 3860 states and 13029 transitions. [2022-01-18 17:50:52,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:52,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 13029 transitions. [2022-01-18 17:50:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:52,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:52,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:52,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 17:50:52,037 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:52,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:52,038 INFO L85 PathProgramCache]: Analyzing trace with hash 196034458, now seen corresponding path program 39 times [2022-01-18 17:50:52,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:52,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9078561] [2022-01-18 17:50:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:52,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:52,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:52,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:52,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9078561] [2022-01-18 17:50:52,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9078561] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:52,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:52,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:52,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323019423] [2022-01-18 17:50:52,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:52,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:52,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:52,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:52,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:52,261 INFO L87 Difference]: Start difference. First operand 3860 states and 13029 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:53,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:53,463 INFO L93 Difference]: Finished difference Result 5722 states and 19443 transitions. [2022-01-18 17:50:53,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:50:53,463 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:53,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:53,475 INFO L225 Difference]: With dead ends: 5722 [2022-01-18 17:50:53,475 INFO L226 Difference]: Without dead ends: 5631 [2022-01-18 17:50:53,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 17:50:53,476 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 383 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:53,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1732 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:50:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2022-01-18 17:50:53,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 3860. [2022-01-18 17:50:53,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 3859 states have (on average 3.374708473697849) internal successors, (13023), 3859 states have internal predecessors, (13023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 13023 transitions. [2022-01-18 17:50:53,536 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 13023 transitions. Word has length 39 [2022-01-18 17:50:53,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:53,537 INFO L470 AbstractCegarLoop]: Abstraction has 3860 states and 13023 transitions. [2022-01-18 17:50:53,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:53,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 13023 transitions. [2022-01-18 17:50:53,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:53,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:53,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:53,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 17:50:53,542 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:53,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:53,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1306447748, now seen corresponding path program 40 times [2022-01-18 17:50:53,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:53,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781847296] [2022-01-18 17:50:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:53,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:53,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:53,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:53,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781847296] [2022-01-18 17:50:53,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781847296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:53,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:53,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:53,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058020467] [2022-01-18 17:50:53,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:53,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:53,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:53,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:53,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:53,755 INFO L87 Difference]: Start difference. First operand 3860 states and 13023 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:55,145 INFO L93 Difference]: Finished difference Result 6494 states and 22159 transitions. [2022-01-18 17:50:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:50:55,145 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:55,158 INFO L225 Difference]: With dead ends: 6494 [2022-01-18 17:50:55,159 INFO L226 Difference]: Without dead ends: 6378 [2022-01-18 17:50:55,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=245, Invalid=2407, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:50:55,159 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 384 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:55,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 2083 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:50:55,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6378 states. [2022-01-18 17:50:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6378 to 3838. [2022-01-18 17:50:55,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3838 states, 3837 states have (on average 3.377638780297107) internal successors, (12960), 3837 states have internal predecessors, (12960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:55,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 12960 transitions. [2022-01-18 17:50:55,229 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 12960 transitions. Word has length 39 [2022-01-18 17:50:55,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:55,229 INFO L470 AbstractCegarLoop]: Abstraction has 3838 states and 12960 transitions. [2022-01-18 17:50:55,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:55,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 12960 transitions. [2022-01-18 17:50:55,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:55,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:55,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:55,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 17:50:55,235 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:55,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash -569729732, now seen corresponding path program 41 times [2022-01-18 17:50:55,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:55,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551531320] [2022-01-18 17:50:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:55,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:55,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:55,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:55,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551531320] [2022-01-18 17:50:55,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551531320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:55,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:55,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:55,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324375007] [2022-01-18 17:50:55,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:55,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:55,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:55,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:55,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:55,465 INFO L87 Difference]: Start difference. First operand 3838 states and 12960 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:58,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:50:58,457 INFO L93 Difference]: Finished difference Result 8378 states and 28437 transitions. [2022-01-18 17:50:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-01-18 17:50:58,458 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:50:58,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:50:58,474 INFO L225 Difference]: With dead ends: 8378 [2022-01-18 17:50:58,474 INFO L226 Difference]: Without dead ends: 8272 [2022-01-18 17:50:58,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2722 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=650, Invalid=7722, Unknown=0, NotChecked=0, Total=8372 [2022-01-18 17:50:58,475 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 602 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 4459 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 4561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 4459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:50:58,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 3150 Invalid, 4561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 4459 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:50:58,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2022-01-18 17:50:58,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 3854. [2022-01-18 17:50:58,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.377108746431352) internal successors, (13012), 3853 states have internal predecessors, (13012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13012 transitions. [2022-01-18 17:50:58,548 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13012 transitions. Word has length 39 [2022-01-18 17:50:58,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:50:58,548 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13012 transitions. [2022-01-18 17:50:58,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:50:58,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13012 transitions. [2022-01-18 17:50:58,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:50:58,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:50:58,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:50:58,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 17:50:58,554 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:50:58,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:50:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2064620632, now seen corresponding path program 42 times [2022-01-18 17:50:58,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:50:58,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935681466] [2022-01-18 17:50:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:50:58,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:50:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:50:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:50:58,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:50:58,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935681466] [2022-01-18 17:50:58,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935681466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:50:58,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:50:58,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:50:58,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543295535] [2022-01-18 17:50:58,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:50:58,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:50:58,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:50:58,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:50:58,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:50:58,763 INFO L87 Difference]: Start difference. First operand 3854 states and 13012 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:00,337 INFO L93 Difference]: Finished difference Result 6055 states and 20602 transitions. [2022-01-18 17:51:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 17:51:00,337 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:00,349 INFO L225 Difference]: With dead ends: 6055 [2022-01-18 17:51:00,349 INFO L226 Difference]: Without dead ends: 5991 [2022-01-18 17:51:00,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=334, Invalid=3448, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 17:51:00,350 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 452 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:00,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1632 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2022-01-18 17:51:00,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 3850. [2022-01-18 17:51:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3849 states have (on average 3.3780202650038973) internal successors, (13002), 3849 states have internal predecessors, (13002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 13002 transitions. [2022-01-18 17:51:00,414 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 13002 transitions. Word has length 39 [2022-01-18 17:51:00,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:00,415 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 13002 transitions. [2022-01-18 17:51:00,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 13002 transitions. [2022-01-18 17:51:00,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:00,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:00,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:00,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 17:51:00,432 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:00,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:00,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1146137062, now seen corresponding path program 43 times [2022-01-18 17:51:00,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:00,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560003063] [2022-01-18 17:51:00,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:00,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:00,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:00,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560003063] [2022-01-18 17:51:00,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560003063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:00,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:00,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:00,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570317478] [2022-01-18 17:51:00,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:00,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:00,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:00,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:00,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:00,644 INFO L87 Difference]: Start difference. First operand 3850 states and 13002 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:01,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:01,785 INFO L93 Difference]: Finished difference Result 5612 states and 19021 transitions. [2022-01-18 17:51:01,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 17:51:01,786 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:01,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:01,797 INFO L225 Difference]: With dead ends: 5612 [2022-01-18 17:51:01,797 INFO L226 Difference]: Without dead ends: 5569 [2022-01-18 17:51:01,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 17:51:01,797 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 367 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:01,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1528 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:01,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-01-18 17:51:01,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 3872. [2022-01-18 17:51:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3871 states have (on average 3.375613536553862) internal successors, (13067), 3871 states have internal predecessors, (13067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 13067 transitions. [2022-01-18 17:51:01,858 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 13067 transitions. Word has length 39 [2022-01-18 17:51:01,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:01,858 INFO L470 AbstractCegarLoop]: Abstraction has 3872 states and 13067 transitions. [2022-01-18 17:51:01,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 13067 transitions. [2022-01-18 17:51:01,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:01,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:01,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:01,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 17:51:01,864 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:01,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:01,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1125988328, now seen corresponding path program 44 times [2022-01-18 17:51:01,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:01,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56201654] [2022-01-18 17:51:01,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:01,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:02,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:02,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:02,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56201654] [2022-01-18 17:51:02,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56201654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:02,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:02,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:02,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269346105] [2022-01-18 17:51:02,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:02,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:02,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:02,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:02,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:02,089 INFO L87 Difference]: Start difference. First operand 3872 states and 13067 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:03,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:03,322 INFO L93 Difference]: Finished difference Result 5591 states and 18991 transitions. [2022-01-18 17:51:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 17:51:03,322 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:03,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:03,333 INFO L225 Difference]: With dead ends: 5591 [2022-01-18 17:51:03,333 INFO L226 Difference]: Without dead ends: 5548 [2022-01-18 17:51:03,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:51:03,334 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 366 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:03,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1578 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:03,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2022-01-18 17:51:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 3868. [2022-01-18 17:51:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3765192655805536) internal successors, (13057), 3867 states have internal predecessors, (13057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13057 transitions. [2022-01-18 17:51:03,419 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13057 transitions. Word has length 39 [2022-01-18 17:51:03,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:03,419 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13057 transitions. [2022-01-18 17:51:03,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:03,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13057 transitions. [2022-01-18 17:51:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:03,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:03,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:03,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 17:51:03,424 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:03,425 INFO L85 PathProgramCache]: Analyzing trace with hash 26515160, now seen corresponding path program 45 times [2022-01-18 17:51:03,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:03,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743782432] [2022-01-18 17:51:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:03,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:03,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:03,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743782432] [2022-01-18 17:51:03,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743782432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:03,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:03,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:03,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637016877] [2022-01-18 17:51:03,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:03,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:03,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:03,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:03,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:03,632 INFO L87 Difference]: Start difference. First operand 3868 states and 13057 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:05,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:05,004 INFO L93 Difference]: Finished difference Result 6448 states and 21909 transitions. [2022-01-18 17:51:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:51:05,004 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:05,018 INFO L225 Difference]: With dead ends: 6448 [2022-01-18 17:51:05,018 INFO L226 Difference]: Without dead ends: 6388 [2022-01-18 17:51:05,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=2604, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:51:05,019 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 407 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:05,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1837 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:05,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2022-01-18 17:51:05,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 3866. [2022-01-18 17:51:05,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 3865 states have (on average 3.376972833117723) internal successors, (13052), 3865 states have internal predecessors, (13052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 13052 transitions. [2022-01-18 17:51:05,083 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 13052 transitions. Word has length 39 [2022-01-18 17:51:05,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:05,084 INFO L470 AbstractCegarLoop]: Abstraction has 3866 states and 13052 transitions. [2022-01-18 17:51:05,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 13052 transitions. [2022-01-18 17:51:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:05,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:05,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:05,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 17:51:05,089 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:05,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:05,089 INFO L85 PathProgramCache]: Analyzing trace with hash -2053051382, now seen corresponding path program 46 times [2022-01-18 17:51:05,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:05,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131155790] [2022-01-18 17:51:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:05,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:05,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:05,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:05,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131155790] [2022-01-18 17:51:05,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131155790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:05,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:05,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 17:51:05,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031418579] [2022-01-18 17:51:05,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:05,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 17:51:05,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:05,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 17:51:05,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 17:51:05,303 INFO L87 Difference]: Start difference. First operand 3866 states and 13052 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:06,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:06,559 INFO L93 Difference]: Finished difference Result 6416 states and 21849 transitions. [2022-01-18 17:51:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 17:51:06,559 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:06,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:06,571 INFO L225 Difference]: With dead ends: 6416 [2022-01-18 17:51:06,571 INFO L226 Difference]: Without dead ends: 6340 [2022-01-18 17:51:06,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 17:51:06,572 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 369 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:06,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 1651 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2022-01-18 17:51:06,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 3874. [2022-01-18 17:51:06,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3873 states have (on average 3.3741285824941905) internal successors, (13068), 3873 states have internal predecessors, (13068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 13068 transitions. [2022-01-18 17:51:06,630 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 13068 transitions. Word has length 39 [2022-01-18 17:51:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:06,630 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 13068 transitions. [2022-01-18 17:51:06,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:06,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 13068 transitions. [2022-01-18 17:51:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:06,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:06,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:06,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 17:51:06,636 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:06,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:06,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1223862302, now seen corresponding path program 47 times [2022-01-18 17:51:06,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:06,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799485082] [2022-01-18 17:51:06,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:06,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:06,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:06,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799485082] [2022-01-18 17:51:06,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799485082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:06,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:06,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:06,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845860346] [2022-01-18 17:51:06,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:06,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:06,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:06,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:06,833 INFO L87 Difference]: Start difference. First operand 3874 states and 13068 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:08,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:08,162 INFO L93 Difference]: Finished difference Result 6398 states and 21795 transitions. [2022-01-18 17:51:08,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:51:08,166 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:08,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:08,179 INFO L225 Difference]: With dead ends: 6398 [2022-01-18 17:51:08,179 INFO L226 Difference]: Without dead ends: 6328 [2022-01-18 17:51:08,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=239, Invalid=2413, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:51:08,180 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 390 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:08,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1845 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2022-01-18 17:51:08,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 3862. [2022-01-18 17:51:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.3773633773633773) internal successors, (13040), 3861 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13040 transitions. [2022-01-18 17:51:08,244 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13040 transitions. Word has length 39 [2022-01-18 17:51:08,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:08,244 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13040 transitions. [2022-01-18 17:51:08,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:08,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13040 transitions. [2022-01-18 17:51:08,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:08,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:08,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:08,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 17:51:08,249 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:08,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:08,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2070045982, now seen corresponding path program 48 times [2022-01-18 17:51:08,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:08,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264417802] [2022-01-18 17:51:08,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:08,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:08,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:08,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264417802] [2022-01-18 17:51:08,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264417802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:08,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:08,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:08,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422314885] [2022-01-18 17:51:08,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:08,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:08,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:08,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:08,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:08,454 INFO L87 Difference]: Start difference. First operand 3862 states and 13040 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:10,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:10,054 INFO L93 Difference]: Finished difference Result 6160 states and 21004 transitions. [2022-01-18 17:51:10,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 17:51:10,054 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:10,066 INFO L225 Difference]: With dead ends: 6160 [2022-01-18 17:51:10,066 INFO L226 Difference]: Without dead ends: 6117 [2022-01-18 17:51:10,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=344, Invalid=3438, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 17:51:10,067 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 453 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:10,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1790 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6117 states. [2022-01-18 17:51:10,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6117 to 3876. [2022-01-18 17:51:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3876 states, 3875 states have (on average 3.375741935483871) internal successors, (13081), 3875 states have internal predecessors, (13081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:10,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3876 states to 3876 states and 13081 transitions. [2022-01-18 17:51:10,129 INFO L78 Accepts]: Start accepts. Automaton has 3876 states and 13081 transitions. Word has length 39 [2022-01-18 17:51:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:10,129 INFO L470 AbstractCegarLoop]: Abstraction has 3876 states and 13081 transitions. [2022-01-18 17:51:10,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:10,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3876 states and 13081 transitions. [2022-01-18 17:51:10,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:10,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:10,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:10,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 17:51:10,134 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:10,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:10,135 INFO L85 PathProgramCache]: Analyzing trace with hash 289447680, now seen corresponding path program 49 times [2022-01-18 17:51:10,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:10,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173522175] [2022-01-18 17:51:10,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:10,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:10,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:10,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173522175] [2022-01-18 17:51:10,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173522175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:10,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:10,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:10,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244835584] [2022-01-18 17:51:10,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:10,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:10,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:10,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:10,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:10,331 INFO L87 Difference]: Start difference. First operand 3876 states and 13081 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:12,137 INFO L93 Difference]: Finished difference Result 7021 states and 23934 transitions. [2022-01-18 17:51:12,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 17:51:12,138 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:12,152 INFO L225 Difference]: With dead ends: 7021 [2022-01-18 17:51:12,152 INFO L226 Difference]: Without dead ends: 6969 [2022-01-18 17:51:12,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1275 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=386, Invalid=4170, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 17:51:12,153 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 498 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 2853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:12,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 2125 Invalid, 2853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:51:12,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2022-01-18 17:51:12,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 3862. [2022-01-18 17:51:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.3773633773633773) internal successors, (13040), 3861 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:12,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13040 transitions. [2022-01-18 17:51:12,242 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13040 transitions. Word has length 39 [2022-01-18 17:51:12,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:12,243 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13040 transitions. [2022-01-18 17:51:12,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:12,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13040 transitions. [2022-01-18 17:51:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:12,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:12,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:12,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 17:51:12,248 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:12,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1306437744, now seen corresponding path program 50 times [2022-01-18 17:51:12,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:12,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226747573] [2022-01-18 17:51:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:12,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:12,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:12,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226747573] [2022-01-18 17:51:12,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226747573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:12,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:12,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:12,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405535670] [2022-01-18 17:51:12,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:12,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:12,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:12,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:12,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:12,446 INFO L87 Difference]: Start difference. First operand 3862 states and 13040 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:13,589 INFO L93 Difference]: Finished difference Result 5717 states and 19331 transitions. [2022-01-18 17:51:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:51:13,589 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:13,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:13,600 INFO L225 Difference]: With dead ends: 5717 [2022-01-18 17:51:13,600 INFO L226 Difference]: Without dead ends: 5662 [2022-01-18 17:51:13,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 17:51:13,601 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 375 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:13,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1554 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:13,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2022-01-18 17:51:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 3870. [2022-01-18 17:51:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3869 states have (on average 3.3765830964073404) internal successors, (13064), 3869 states have internal predecessors, (13064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 13064 transitions. [2022-01-18 17:51:13,662 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 13064 transitions. Word has length 39 [2022-01-18 17:51:13,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:13,662 INFO L470 AbstractCegarLoop]: Abstraction has 3870 states and 13064 transitions. [2022-01-18 17:51:13,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 13064 transitions. [2022-01-18 17:51:13,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:13,667 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:13,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:13,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 17:51:13,667 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:13,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:13,668 INFO L85 PathProgramCache]: Analyzing trace with hash -133785522, now seen corresponding path program 51 times [2022-01-18 17:51:13,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:13,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037746554] [2022-01-18 17:51:13,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:13,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:13,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:13,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037746554] [2022-01-18 17:51:13,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037746554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:13,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:13,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:13,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059360365] [2022-01-18 17:51:13,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:13,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:13,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:13,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:13,887 INFO L87 Difference]: Start difference. First operand 3870 states and 13064 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:15,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:15,308 INFO L93 Difference]: Finished difference Result 6578 states and 22265 transitions. [2022-01-18 17:51:15,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 17:51:15,309 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:15,321 INFO L225 Difference]: With dead ends: 6578 [2022-01-18 17:51:15,321 INFO L226 Difference]: Without dead ends: 6518 [2022-01-18 17:51:15,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=276, Invalid=2694, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 17:51:15,322 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 425 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:15,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 1903 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2022-01-18 17:51:15,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 3868. [2022-01-18 17:51:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3770364623739333) internal successors, (13059), 3867 states have internal predecessors, (13059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:15,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13059 transitions. [2022-01-18 17:51:15,380 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13059 transitions. Word has length 39 [2022-01-18 17:51:15,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:15,380 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13059 transitions. [2022-01-18 17:51:15,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:15,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13059 transitions. [2022-01-18 17:51:15,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:15,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:15,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:15,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 17:51:15,386 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:15,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:15,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2011189124, now seen corresponding path program 52 times [2022-01-18 17:51:15,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:15,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378218202] [2022-01-18 17:51:15,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:15,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:15,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:15,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378218202] [2022-01-18 17:51:15,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378218202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:15,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:15,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:15,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477581923] [2022-01-18 17:51:15,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:15,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:15,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:15,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:15,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:15,588 INFO L87 Difference]: Start difference. First operand 3868 states and 13059 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:16,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:16,690 INFO L93 Difference]: Finished difference Result 5638 states and 19157 transitions. [2022-01-18 17:51:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 17:51:16,690 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:16,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:16,701 INFO L225 Difference]: With dead ends: 5638 [2022-01-18 17:51:16,701 INFO L226 Difference]: Without dead ends: 5547 [2022-01-18 17:51:16,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 17:51:16,701 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 351 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:16,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1623 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:16,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2022-01-18 17:51:16,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 3868. [2022-01-18 17:51:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3754848719937938) internal successors, (13053), 3867 states have internal predecessors, (13053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13053 transitions. [2022-01-18 17:51:16,761 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13053 transitions. Word has length 39 [2022-01-18 17:51:16,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:16,761 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13053 transitions. [2022-01-18 17:51:16,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13053 transitions. [2022-01-18 17:51:16,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:16,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:16,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:16,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 17:51:16,767 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:16,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:16,767 INFO L85 PathProgramCache]: Analyzing trace with hash 781295966, now seen corresponding path program 53 times [2022-01-18 17:51:16,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:16,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910462855] [2022-01-18 17:51:16,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:16,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:16,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:16,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:16,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910462855] [2022-01-18 17:51:16,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910462855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:16,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:16,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:16,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789059433] [2022-01-18 17:51:16,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:16,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:16,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:16,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:16,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:16,975 INFO L87 Difference]: Start difference. First operand 3868 states and 13053 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:18,321 INFO L93 Difference]: Finished difference Result 6470 states and 22033 transitions. [2022-01-18 17:51:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:51:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:18,334 INFO L225 Difference]: With dead ends: 6470 [2022-01-18 17:51:18,334 INFO L226 Difference]: Without dead ends: 6370 [2022-01-18 17:51:18,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=245, Invalid=2407, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:51:18,335 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 399 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:18,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1945 Invalid, 2488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6370 states. [2022-01-18 17:51:18,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6370 to 3862. [2022-01-18 17:51:18,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375809375809376) internal successors, (13034), 3861 states have internal predecessors, (13034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13034 transitions. [2022-01-18 17:51:18,394 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13034 transitions. Word has length 39 [2022-01-18 17:51:18,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:18,395 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13034 transitions. [2022-01-18 17:51:18,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13034 transitions. [2022-01-18 17:51:18,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:18,400 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:18,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:18,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 17:51:18,400 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:18,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:18,401 INFO L85 PathProgramCache]: Analyzing trace with hash 544670970, now seen corresponding path program 54 times [2022-01-18 17:51:18,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:18,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765543487] [2022-01-18 17:51:18,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:18,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:18,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:18,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765543487] [2022-01-18 17:51:18,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765543487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:18,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:18,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 17:51:18,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335314475] [2022-01-18 17:51:18,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:18,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 17:51:18,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:18,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 17:51:18,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 17:51:18,586 INFO L87 Difference]: Start difference. First operand 3862 states and 13034 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:19,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:19,743 INFO L93 Difference]: Finished difference Result 6347 states and 21652 transitions. [2022-01-18 17:51:19,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 17:51:19,744 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:19,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:19,756 INFO L225 Difference]: With dead ends: 6347 [2022-01-18 17:51:19,757 INFO L226 Difference]: Without dead ends: 6271 [2022-01-18 17:51:19,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 17:51:19,757 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 347 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:19,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1650 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:19,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6271 states. [2022-01-18 17:51:19,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6271 to 3894. [2022-01-18 17:51:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 3893 states have (on average 3.37066529668636) internal successors, (13122), 3893 states have internal predecessors, (13122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:19,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 13122 transitions. [2022-01-18 17:51:19,821 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 13122 transitions. Word has length 39 [2022-01-18 17:51:19,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:19,821 INFO L470 AbstractCegarLoop]: Abstraction has 3894 states and 13122 transitions. [2022-01-18 17:51:19,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:19,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 13122 transitions. [2022-01-18 17:51:19,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:19,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:19,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:19,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 17:51:19,827 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:19,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:19,827 INFO L85 PathProgramCache]: Analyzing trace with hash -473382642, now seen corresponding path program 55 times [2022-01-18 17:51:19,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:19,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340490139] [2022-01-18 17:51:19,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:19,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:20,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:20,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340490139] [2022-01-18 17:51:20,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340490139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:20,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:20,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:20,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25834822] [2022-01-18 17:51:20,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:20,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:20,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:20,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:20,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:20,024 INFO L87 Difference]: Start difference. First operand 3894 states and 13122 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:21,315 INFO L93 Difference]: Finished difference Result 6329 states and 21598 transitions. [2022-01-18 17:51:21,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 17:51:21,315 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:21,328 INFO L225 Difference]: With dead ends: 6329 [2022-01-18 17:51:21,328 INFO L226 Difference]: Without dead ends: 6263 [2022-01-18 17:51:21,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=2224, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 17:51:21,329 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 376 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:21,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1829 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6263 states. [2022-01-18 17:51:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6263 to 3886. [2022-01-18 17:51:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3885 states have (on average 3.3714285714285714) internal successors, (13098), 3885 states have internal predecessors, (13098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 13098 transitions. [2022-01-18 17:51:21,390 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 13098 transitions. Word has length 39 [2022-01-18 17:51:21,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:21,390 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 13098 transitions. [2022-01-18 17:51:21,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 13098 transitions. [2022-01-18 17:51:21,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:21,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:21,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:21,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 17:51:21,396 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:21,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:21,397 INFO L85 PathProgramCache]: Analyzing trace with hash -755648296, now seen corresponding path program 56 times [2022-01-18 17:51:21,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:21,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900297170] [2022-01-18 17:51:21,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:21,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:21,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:21,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:21,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900297170] [2022-01-18 17:51:21,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900297170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:21,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:21,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:51:21,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722698011] [2022-01-18 17:51:21,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:21,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:51:21,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:51:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:51:21,629 INFO L87 Difference]: Start difference. First operand 3886 states and 13098 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:22,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:22,916 INFO L93 Difference]: Finished difference Result 6350 states and 21651 transitions. [2022-01-18 17:51:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 17:51:22,917 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:22,929 INFO L225 Difference]: With dead ends: 6350 [2022-01-18 17:51:22,929 INFO L226 Difference]: Without dead ends: 6188 [2022-01-18 17:51:22,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=2224, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 17:51:22,930 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 369 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:22,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 1900 Invalid, 2433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:51:22,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6188 states. [2022-01-18 17:51:22,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6188 to 3818. [2022-01-18 17:51:22,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3817 states have (on average 3.378045585538381) internal successors, (12894), 3817 states have internal predecessors, (12894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 12894 transitions. [2022-01-18 17:51:22,993 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 12894 transitions. Word has length 39 [2022-01-18 17:51:22,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:22,994 INFO L470 AbstractCegarLoop]: Abstraction has 3818 states and 12894 transitions. [2022-01-18 17:51:22,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:22,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 12894 transitions. [2022-01-18 17:51:22,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:22,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:22,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:22,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 17:51:22,999 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:22,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:22,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1202837964, now seen corresponding path program 57 times [2022-01-18 17:51:22,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:23,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339354531] [2022-01-18 17:51:23,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:23,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:23,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:23,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339354531] [2022-01-18 17:51:23,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339354531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:23,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:23,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:23,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077271522] [2022-01-18 17:51:23,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:23,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:23,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:23,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:23,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:23,214 INFO L87 Difference]: Start difference. First operand 3818 states and 12894 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:25,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:25,264 INFO L93 Difference]: Finished difference Result 6897 states and 23267 transitions. [2022-01-18 17:51:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 17:51:25,264 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:25,278 INFO L225 Difference]: With dead ends: 6897 [2022-01-18 17:51:25,278 INFO L226 Difference]: Without dead ends: 6830 [2022-01-18 17:51:25,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=399, Invalid=4571, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 17:51:25,279 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 520 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 3506 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:25,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 2870 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3506 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:51:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2022-01-18 17:51:25,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 3854. [2022-01-18 17:51:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.373994290163509) internal successors, (13000), 3853 states have internal predecessors, (13000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:25,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13000 transitions. [2022-01-18 17:51:25,340 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13000 transitions. Word has length 39 [2022-01-18 17:51:25,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:25,340 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13000 transitions. [2022-01-18 17:51:25,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:25,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13000 transitions. [2022-01-18 17:51:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:25,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:25,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:25,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 17:51:25,345 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:25,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:25,346 INFO L85 PathProgramCache]: Analyzing trace with hash -516778006, now seen corresponding path program 58 times [2022-01-18 17:51:25,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:25,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655452675] [2022-01-18 17:51:25,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:25,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:25,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:25,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:25,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655452675] [2022-01-18 17:51:25,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655452675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:25,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:25,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:25,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176424589] [2022-01-18 17:51:25,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:25,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:25,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:25,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:25,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:25,561 INFO L87 Difference]: Start difference. First operand 3854 states and 13000 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:28,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:28,370 INFO L93 Difference]: Finished difference Result 8258 states and 27892 transitions. [2022-01-18 17:51:28,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-18 17:51:28,371 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:28,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:28,387 INFO L225 Difference]: With dead ends: 8258 [2022-01-18 17:51:28,387 INFO L226 Difference]: Without dead ends: 8215 [2022-01-18 17:51:28,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2597 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=621, Invalid=7569, Unknown=0, NotChecked=0, Total=8190 [2022-01-18 17:51:28,388 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 626 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 4331 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 3327 SdHoareTripleChecker+Invalid, 4434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 4331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:28,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 3327 Invalid, 4434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 4331 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:51:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2022-01-18 17:51:28,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 3896. [2022-01-18 17:51:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3895 states have (on average 3.371245186136072) internal successors, (13131), 3895 states have internal predecessors, (13131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 13131 transitions. [2022-01-18 17:51:28,462 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 13131 transitions. Word has length 39 [2022-01-18 17:51:28,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:28,462 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 13131 transitions. [2022-01-18 17:51:28,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:28,462 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 13131 transitions. [2022-01-18 17:51:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:28,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:28,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:28,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 17:51:28,468 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:28,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:28,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1997590988, now seen corresponding path program 59 times [2022-01-18 17:51:28,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:28,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031583710] [2022-01-18 17:51:28,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:28,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:28,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:28,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031583710] [2022-01-18 17:51:28,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031583710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:28,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:28,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:28,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335136532] [2022-01-18 17:51:28,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:28,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:28,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:28,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:28,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:28,677 INFO L87 Difference]: Start difference. First operand 3896 states and 13131 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:31,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:31,537 INFO L93 Difference]: Finished difference Result 8513 states and 28878 transitions. [2022-01-18 17:51:31,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 17:51:31,537 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:31,555 INFO L225 Difference]: With dead ends: 8513 [2022-01-18 17:51:31,555 INFO L226 Difference]: Without dead ends: 8449 [2022-01-18 17:51:31,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2591 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=620, Invalid=7570, Unknown=0, NotChecked=0, Total=8190 [2022-01-18 17:51:31,556 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 622 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 4400 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 4400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:31,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 3274 Invalid, 4525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 4400 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:51:31,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8449 states. [2022-01-18 17:51:31,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8449 to 3826. [2022-01-18 17:51:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3825 states have (on average 3.3772549019607845) internal successors, (12918), 3825 states have internal predecessors, (12918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:31,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 12918 transitions. [2022-01-18 17:51:31,630 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 12918 transitions. Word has length 39 [2022-01-18 17:51:31,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:31,631 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 12918 transitions. [2022-01-18 17:51:31,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:31,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 12918 transitions. [2022-01-18 17:51:31,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:31,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:31,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:31,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 17:51:31,636 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:31,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:31,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1676941908, now seen corresponding path program 60 times [2022-01-18 17:51:31,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:31,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754366590] [2022-01-18 17:51:31,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:31,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:31,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:31,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:31,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754366590] [2022-01-18 17:51:31,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754366590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:31,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:31,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:31,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14674697] [2022-01-18 17:51:31,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:31,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:31,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:31,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:31,863 INFO L87 Difference]: Start difference. First operand 3826 states and 12918 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:33,172 INFO L93 Difference]: Finished difference Result 5641 states and 19191 transitions. [2022-01-18 17:51:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:51:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:33,183 INFO L225 Difference]: With dead ends: 5641 [2022-01-18 17:51:33,183 INFO L226 Difference]: Without dead ends: 5574 [2022-01-18 17:51:33,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=256, Invalid=2500, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 17:51:33,184 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 413 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:33,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1746 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2022-01-18 17:51:33,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 3854. [2022-01-18 17:51:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3734752141188684) internal successors, (12998), 3853 states have internal predecessors, (12998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 12998 transitions. [2022-01-18 17:51:33,259 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 12998 transitions. Word has length 39 [2022-01-18 17:51:33,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:33,259 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 12998 transitions. [2022-01-18 17:51:33,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:33,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 12998 transitions. [2022-01-18 17:51:33,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:33,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:33,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:33,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 17:51:33,265 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:33,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:33,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1807536756, now seen corresponding path program 61 times [2022-01-18 17:51:33,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:33,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474228515] [2022-01-18 17:51:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:33,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:33,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:33,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:33,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474228515] [2022-01-18 17:51:33,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474228515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:33,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:33,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:33,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251240709] [2022-01-18 17:51:33,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:33,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:33,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:33,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:33,493 INFO L87 Difference]: Start difference. First operand 3854 states and 12998 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:34,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:34,812 INFO L93 Difference]: Finished difference Result 5629 states and 19151 transitions. [2022-01-18 17:51:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 17:51:34,812 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:34,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:34,823 INFO L225 Difference]: With dead ends: 5629 [2022-01-18 17:51:34,823 INFO L226 Difference]: Without dead ends: 5566 [2022-01-18 17:51:34,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=2599, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:51:34,824 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 411 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:34,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 1773 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:34,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5566 states. [2022-01-18 17:51:34,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5566 to 3846. [2022-01-18 17:51:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3845 states have (on average 3.375292587776333) internal successors, (12978), 3845 states have internal predecessors, (12978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:34,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 12978 transitions. [2022-01-18 17:51:34,882 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 12978 transitions. Word has length 39 [2022-01-18 17:51:34,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:34,882 INFO L470 AbstractCegarLoop]: Abstraction has 3846 states and 12978 transitions. [2022-01-18 17:51:34,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:34,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 12978 transitions. [2022-01-18 17:51:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:34,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:34,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:34,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 17:51:34,888 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:34,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:34,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1943215348, now seen corresponding path program 62 times [2022-01-18 17:51:34,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:34,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405561432] [2022-01-18 17:51:34,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:34,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:35,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:35,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405561432] [2022-01-18 17:51:35,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405561432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:35,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:35,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:35,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135872484] [2022-01-18 17:51:35,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:35,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:35,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:35,097 INFO L87 Difference]: Start difference. First operand 3846 states and 12978 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:36,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:36,934 INFO L93 Difference]: Finished difference Result 6214 states and 21108 transitions. [2022-01-18 17:51:36,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 17:51:36,935 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:36,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:36,947 INFO L225 Difference]: With dead ends: 6214 [2022-01-18 17:51:36,947 INFO L226 Difference]: Without dead ends: 6171 [2022-01-18 17:51:36,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=402, Invalid=4428, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 17:51:36,948 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 524 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:36,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 1990 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:51:36,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6171 states. [2022-01-18 17:51:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6171 to 3874. [2022-01-18 17:51:37,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3873 states have (on average 3.3736121869351923) internal successors, (13066), 3873 states have internal predecessors, (13066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 13066 transitions. [2022-01-18 17:51:37,009 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 13066 transitions. Word has length 39 [2022-01-18 17:51:37,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:37,009 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 13066 transitions. [2022-01-18 17:51:37,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:37,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 13066 transitions. [2022-01-18 17:51:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:37,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:37,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:37,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 17:51:37,015 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:37,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:37,015 INFO L85 PathProgramCache]: Analyzing trace with hash 571153646, now seen corresponding path program 63 times [2022-01-18 17:51:37,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:37,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924250068] [2022-01-18 17:51:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:37,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:37,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:37,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924250068] [2022-01-18 17:51:37,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924250068] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:37,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:37,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:37,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099707008] [2022-01-18 17:51:37,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:37,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:37,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:37,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:37,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:37,231 INFO L87 Difference]: Start difference. First operand 3874 states and 13066 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:39,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:39,256 INFO L93 Difference]: Finished difference Result 7060 states and 23999 transitions. [2022-01-18 17:51:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-01-18 17:51:39,257 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:39,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:39,272 INFO L225 Difference]: With dead ends: 7060 [2022-01-18 17:51:39,272 INFO L226 Difference]: Without dead ends: 7008 [2022-01-18 17:51:39,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=437, Invalid=5113, Unknown=0, NotChecked=0, Total=5550 [2022-01-18 17:51:39,273 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 561 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 3119 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 3221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 3119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:39,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 2333 Invalid, 3221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 3119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:51:39,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2022-01-18 17:51:39,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 3862. [2022-01-18 17:51:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375291375291375) internal successors, (13032), 3861 states have internal predecessors, (13032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13032 transitions. [2022-01-18 17:51:39,363 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13032 transitions. Word has length 39 [2022-01-18 17:51:39,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:39,363 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13032 transitions. [2022-01-18 17:51:39,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:39,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13032 transitions. [2022-01-18 17:51:39,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:39,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:39,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:39,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 17:51:39,370 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:39,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:39,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1024731778, now seen corresponding path program 64 times [2022-01-18 17:51:39,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:39,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87020286] [2022-01-18 17:51:39,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:39,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:39,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:39,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87020286] [2022-01-18 17:51:39,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87020286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:39,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:39,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:39,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538700082] [2022-01-18 17:51:39,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:39,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:39,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:39,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:39,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:39,586 INFO L87 Difference]: Start difference. First operand 3862 states and 13032 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:40,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:40,956 INFO L93 Difference]: Finished difference Result 5773 states and 19479 transitions. [2022-01-18 17:51:40,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 17:51:40,956 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:40,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:40,968 INFO L225 Difference]: With dead ends: 5773 [2022-01-18 17:51:40,968 INFO L226 Difference]: Without dead ends: 5718 [2022-01-18 17:51:40,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=280, Invalid=2800, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 17:51:40,968 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 439 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:40,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 1793 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2022-01-18 17:51:41,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 3864. [2022-01-18 17:51:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 3863 states have (on average 3.3743204763137458) internal successors, (13035), 3863 states have internal predecessors, (13035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 13035 transitions. [2022-01-18 17:51:41,032 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 13035 transitions. Word has length 39 [2022-01-18 17:51:41,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:41,033 INFO L470 AbstractCegarLoop]: Abstraction has 3864 states and 13035 transitions. [2022-01-18 17:51:41,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 13035 transitions. [2022-01-18 17:51:41,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:41,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:41,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:41,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 17:51:41,039 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:41,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:41,039 INFO L85 PathProgramCache]: Analyzing trace with hash 147920444, now seen corresponding path program 65 times [2022-01-18 17:51:41,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:41,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111415390] [2022-01-18 17:51:41,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:41,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:41,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:41,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:41,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111415390] [2022-01-18 17:51:41,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111415390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:41,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:41,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:41,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16739430] [2022-01-18 17:51:41,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:41,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:41,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:41,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:41,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:41,249 INFO L87 Difference]: Start difference. First operand 3864 states and 13035 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:42,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:42,804 INFO L93 Difference]: Finished difference Result 6566 states and 22256 transitions. [2022-01-18 17:51:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 17:51:42,805 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:42,817 INFO L225 Difference]: With dead ends: 6566 [2022-01-18 17:51:42,818 INFO L226 Difference]: Without dead ends: 6520 [2022-01-18 17:51:42,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=3125, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:51:42,818 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 456 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2819 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 2876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:42,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2154 Invalid, 2876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2819 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:51:42,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6520 states. [2022-01-18 17:51:42,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6520 to 3868. [2022-01-18 17:51:42,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3728988880268944) internal successors, (13043), 3867 states have internal predecessors, (13043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13043 transitions. [2022-01-18 17:51:42,881 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13043 transitions. Word has length 39 [2022-01-18 17:51:42,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:42,881 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13043 transitions. [2022-01-18 17:51:42,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13043 transitions. [2022-01-18 17:51:42,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:42,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:42,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:42,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 17:51:42,887 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:42,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:42,887 INFO L85 PathProgramCache]: Analyzing trace with hash -99545718, now seen corresponding path program 66 times [2022-01-18 17:51:42,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:42,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866295305] [2022-01-18 17:51:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:42,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:43,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:43,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866295305] [2022-01-18 17:51:43,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866295305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:43,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:43,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:43,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708649743] [2022-01-18 17:51:43,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:43,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:43,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:43,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:43,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:43,098 INFO L87 Difference]: Start difference. First operand 3868 states and 13043 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:44,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:44,512 INFO L93 Difference]: Finished difference Result 5676 states and 19264 transitions. [2022-01-18 17:51:44,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:51:44,512 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:44,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:44,523 INFO L225 Difference]: With dead ends: 5676 [2022-01-18 17:51:44,524 INFO L226 Difference]: Without dead ends: 5627 [2022-01-18 17:51:44,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=282, Invalid=2798, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 17:51:44,524 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 426 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:44,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1784 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:44,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5627 states. [2022-01-18 17:51:44,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5627 to 3858. [2022-01-18 17:51:44,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3761991184858697) internal successors, (13022), 3857 states have internal predecessors, (13022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13022 transitions. [2022-01-18 17:51:44,590 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13022 transitions. Word has length 39 [2022-01-18 17:51:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:44,590 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13022 transitions. [2022-01-18 17:51:44,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13022 transitions. [2022-01-18 17:51:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:44,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:44,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:44,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 17:51:44,596 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1439329804, now seen corresponding path program 67 times [2022-01-18 17:51:44,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:44,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784096974] [2022-01-18 17:51:44,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:44,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:44,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:44,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:44,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784096974] [2022-01-18 17:51:44,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784096974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:44,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:44,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:44,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797035705] [2022-01-18 17:51:44,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:44,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:44,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:44,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:44,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:44,826 INFO L87 Difference]: Start difference. First operand 3858 states and 13022 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:46,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:46,101 INFO L93 Difference]: Finished difference Result 5685 states and 19349 transitions. [2022-01-18 17:51:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:51:46,101 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:46,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:46,112 INFO L225 Difference]: With dead ends: 5685 [2022-01-18 17:51:46,112 INFO L226 Difference]: Without dead ends: 5618 [2022-01-18 17:51:46,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=2135, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:51:46,113 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 396 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:46,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1784 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2022-01-18 17:51:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 3898. [2022-01-18 17:51:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 3897 states have (on average 3.369258403900436) internal successors, (13130), 3897 states have internal predecessors, (13130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:46,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 13130 transitions. [2022-01-18 17:51:46,173 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 13130 transitions. Word has length 39 [2022-01-18 17:51:46,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:46,174 INFO L470 AbstractCegarLoop]: Abstraction has 3898 states and 13130 transitions. [2022-01-18 17:51:46,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:46,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 13130 transitions. [2022-01-18 17:51:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:46,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:46,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:46,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 17:51:46,179 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:46,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1308734956, now seen corresponding path program 68 times [2022-01-18 17:51:46,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:46,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693979976] [2022-01-18 17:51:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:46,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:46,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:46,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693979976] [2022-01-18 17:51:46,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693979976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:46,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:46,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:46,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53898226] [2022-01-18 17:51:46,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:46,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:46,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:46,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:46,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:46,388 INFO L87 Difference]: Start difference. First operand 3898 states and 13130 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:47,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:47,651 INFO L93 Difference]: Finished difference Result 5673 states and 19309 transitions. [2022-01-18 17:51:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 17:51:47,651 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:47,662 INFO L225 Difference]: With dead ends: 5673 [2022-01-18 17:51:47,663 INFO L226 Difference]: Without dead ends: 5610 [2022-01-18 17:51:47,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:51:47,663 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 396 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:47,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1800 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:47,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-01-18 17:51:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 3890. [2022-01-18 17:51:47,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3889 states have (on average 3.370017999485729) internal successors, (13106), 3889 states have internal predecessors, (13106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 13106 transitions. [2022-01-18 17:51:47,724 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 13106 transitions. Word has length 39 [2022-01-18 17:51:47,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:47,724 INFO L470 AbstractCegarLoop]: Abstraction has 3890 states and 13106 transitions. [2022-01-18 17:51:47,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 13106 transitions. [2022-01-18 17:51:47,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:47,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:47,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:47,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 17:51:47,729 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:47,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:47,730 INFO L85 PathProgramCache]: Analyzing trace with hash 778834508, now seen corresponding path program 69 times [2022-01-18 17:51:47,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:47,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066762076] [2022-01-18 17:51:47,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:47,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:47,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:47,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066762076] [2022-01-18 17:51:47,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066762076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:47,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:47,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:47,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878656784] [2022-01-18 17:51:47,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:47,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:47,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:47,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:47,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:47,939 INFO L87 Difference]: Start difference. First operand 3890 states and 13106 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:49,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:49,209 INFO L93 Difference]: Finished difference Result 5697 states and 19369 transitions. [2022-01-18 17:51:49,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:51:49,209 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:49,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:49,220 INFO L225 Difference]: With dead ends: 5697 [2022-01-18 17:51:49,220 INFO L226 Difference]: Without dead ends: 5574 [2022-01-18 17:51:49,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2137, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:51:49,221 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 394 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:49,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1877 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:49,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2022-01-18 17:51:49,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 3858. [2022-01-18 17:51:49,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3720508166969148) internal successors, (13006), 3857 states have internal predecessors, (13006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:49,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13006 transitions. [2022-01-18 17:51:49,281 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13006 transitions. Word has length 39 [2022-01-18 17:51:49,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:49,281 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13006 transitions. [2022-01-18 17:51:49,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:49,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13006 transitions. [2022-01-18 17:51:49,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:49,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:49,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:49,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 17:51:49,287 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:49,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:49,287 INFO L85 PathProgramCache]: Analyzing trace with hash 60423338, now seen corresponding path program 70 times [2022-01-18 17:51:49,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:49,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856968926] [2022-01-18 17:51:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:49,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:49,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:49,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856968926] [2022-01-18 17:51:49,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856968926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:49,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:49,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:49,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862303269] [2022-01-18 17:51:49,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:49,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:49,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:49,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:49,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:49,497 INFO L87 Difference]: Start difference. First operand 3858 states and 13006 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:51,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:51,306 INFO L93 Difference]: Finished difference Result 6282 states and 21379 transitions. [2022-01-18 17:51:51,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 17:51:51,306 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:51,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:51,319 INFO L225 Difference]: With dead ends: 6282 [2022-01-18 17:51:51,319 INFO L226 Difference]: Without dead ends: 6239 [2022-01-18 17:51:51,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=370, Invalid=3920, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 17:51:51,320 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 501 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:51,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 2172 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:51:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6239 states. [2022-01-18 17:51:51,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6239 to 3872. [2022-01-18 17:51:51,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3871 states have (on average 3.370446912942392) internal successors, (13047), 3871 states have internal predecessors, (13047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 13047 transitions. [2022-01-18 17:51:51,410 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 13047 transitions. Word has length 39 [2022-01-18 17:51:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:51,410 INFO L470 AbstractCegarLoop]: Abstraction has 3872 states and 13047 transitions. [2022-01-18 17:51:51,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 13047 transitions. [2022-01-18 17:51:51,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:51,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:51,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:51,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 17:51:51,416 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:51,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1720174964, now seen corresponding path program 71 times [2022-01-18 17:51:51,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:51,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22589210] [2022-01-18 17:51:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:51,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:51,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:51,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:51,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22589210] [2022-01-18 17:51:51,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22589210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:51,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:51,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:51,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847980493] [2022-01-18 17:51:51,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:51,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:51,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:51,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:51,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:51,624 INFO L87 Difference]: Start difference. First operand 3872 states and 13047 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:53,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:53,677 INFO L93 Difference]: Finished difference Result 7143 states and 24309 transitions. [2022-01-18 17:51:53,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 17:51:53,677 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:53,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:53,691 INFO L225 Difference]: With dead ends: 7143 [2022-01-18 17:51:53,691 INFO L226 Difference]: Without dead ends: 7091 [2022-01-18 17:51:53,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=412, Invalid=4700, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 17:51:53,692 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 546 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 3234 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:53,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 2539 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 3234 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:51:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2022-01-18 17:51:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 3842. [2022-01-18 17:51:53,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3842 states, 3841 states have (on average 3.3720385316323873) internal successors, (12952), 3841 states have internal predecessors, (12952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:53,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3842 states to 3842 states and 12952 transitions. [2022-01-18 17:51:53,758 INFO L78 Accepts]: Start accepts. Automaton has 3842 states and 12952 transitions. Word has length 39 [2022-01-18 17:51:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:53,758 INFO L470 AbstractCegarLoop]: Abstraction has 3842 states and 12952 transitions. [2022-01-18 17:51:53,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:53,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3842 states and 12952 transitions. [2022-01-18 17:51:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:53,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:53,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:53,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 17:51:53,765 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:53,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:53,765 INFO L85 PathProgramCache]: Analyzing trace with hash 978906908, now seen corresponding path program 72 times [2022-01-18 17:51:53,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:53,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526846447] [2022-01-18 17:51:53,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:53,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:53,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:53,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526846447] [2022-01-18 17:51:53,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526846447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:53,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:53,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:53,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988760568] [2022-01-18 17:51:53,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:53,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:53,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:53,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:53,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:53,984 INFO L87 Difference]: Start difference. First operand 3842 states and 12952 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:55,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:55,330 INFO L93 Difference]: Finished difference Result 5803 states and 19576 transitions. [2022-01-18 17:51:55,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:51:55,330 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:55,343 INFO L225 Difference]: With dead ends: 5803 [2022-01-18 17:51:55,343 INFO L226 Difference]: Without dead ends: 5748 [2022-01-18 17:51:55,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=250, Invalid=2402, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:51:55,343 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 432 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:55,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1821 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5748 states. [2022-01-18 17:51:55,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5748 to 3850. [2022-01-18 17:51:55,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3849 states have (on average 3.3712652637048586) internal successors, (12976), 3849 states have internal predecessors, (12976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 12976 transitions. [2022-01-18 17:51:55,410 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 12976 transitions. Word has length 39 [2022-01-18 17:51:55,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:55,410 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 12976 transitions. [2022-01-18 17:51:55,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:55,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 12976 transitions. [2022-01-18 17:51:55,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:55,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:55,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:55,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 17:51:55,416 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:55,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:55,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2143408166, now seen corresponding path program 73 times [2022-01-18 17:51:55,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:55,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806667626] [2022-01-18 17:51:55,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:55,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:55,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:55,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:55,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806667626] [2022-01-18 17:51:55,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806667626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:55,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:55,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:55,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471567449] [2022-01-18 17:51:55,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:55,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:55,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:55,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:55,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:55,644 INFO L87 Difference]: Start difference. First operand 3850 states and 12976 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:57,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:57,169 INFO L93 Difference]: Finished difference Result 6664 states and 22510 transitions. [2022-01-18 17:51:57,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 17:51:57,169 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:57,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:57,183 INFO L225 Difference]: With dead ends: 6664 [2022-01-18 17:51:57,184 INFO L226 Difference]: Without dead ends: 6604 [2022-01-18 17:51:57,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=281, Invalid=2911, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 17:51:57,184 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 462 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:57,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 2208 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:51:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6604 states. [2022-01-18 17:51:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6604 to 3848. [2022-01-18 17:51:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.371718221991162) internal successors, (12971), 3847 states have internal predecessors, (12971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12971 transitions. [2022-01-18 17:51:57,271 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12971 transitions. Word has length 39 [2022-01-18 17:51:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:57,271 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12971 transitions. [2022-01-18 17:51:57,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12971 transitions. [2022-01-18 17:51:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:57,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:57,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:57,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 17:51:57,276 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:57,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash 274155528, now seen corresponding path program 74 times [2022-01-18 17:51:57,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:57,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884507900] [2022-01-18 17:51:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:57,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:57,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:57,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884507900] [2022-01-18 17:51:57,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884507900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:57,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:57,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:57,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537391936] [2022-01-18 17:51:57,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:57,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:57,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:57,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:57,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:57,485 INFO L87 Difference]: Start difference. First operand 3848 states and 12971 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:58,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:51:58,784 INFO L93 Difference]: Finished difference Result 5772 states and 19530 transitions. [2022-01-18 17:51:58,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 17:51:58,784 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:51:58,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:51:58,795 INFO L225 Difference]: With dead ends: 5772 [2022-01-18 17:51:58,795 INFO L226 Difference]: Without dead ends: 5681 [2022-01-18 17:51:58,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=2315, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 17:51:58,796 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 417 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:51:58,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 1894 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:51:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5681 states. [2022-01-18 17:51:58,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5681 to 3848. [2022-01-18 17:51:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.3701585651156747) internal successors, (12965), 3847 states have internal predecessors, (12965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12965 transitions. [2022-01-18 17:51:58,856 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12965 transitions. Word has length 39 [2022-01-18 17:51:58,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:51:58,856 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12965 transitions. [2022-01-18 17:51:58,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:51:58,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12965 transitions. [2022-01-18 17:51:58,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:51:58,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:51:58,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:51:58,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 17:51:58,861 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:51:58,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:51:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1228326678, now seen corresponding path program 75 times [2022-01-18 17:51:58,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:51:58,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328357688] [2022-01-18 17:51:58,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:51:58,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:51:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:51:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:51:59,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:51:59,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328357688] [2022-01-18 17:51:59,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328357688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:51:59,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:51:59,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:51:59,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118162509] [2022-01-18 17:51:59,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:51:59,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:51:59,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:51:59,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:51:59,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:51:59,068 INFO L87 Difference]: Start difference. First operand 3848 states and 12965 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:00,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:00,587 INFO L93 Difference]: Finished difference Result 6585 states and 22332 transitions. [2022-01-18 17:52:00,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:52:00,588 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:00,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:00,600 INFO L225 Difference]: With dead ends: 6585 [2022-01-18 17:52:00,600 INFO L226 Difference]: Without dead ends: 6469 [2022-01-18 17:52:00,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=2710, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 17:52:00,601 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 429 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:00,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2290 Invalid, 2891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:52:00,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6469 states. [2022-01-18 17:52:00,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6469 to 3826. [2022-01-18 17:52:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3825 states have (on average 3.3762091503267975) internal successors, (12914), 3825 states have internal predecessors, (12914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 12914 transitions. [2022-01-18 17:52:00,661 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 12914 transitions. Word has length 39 [2022-01-18 17:52:00,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:00,661 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 12914 transitions. [2022-01-18 17:52:00,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:00,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 12914 transitions. [2022-01-18 17:52:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:00,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:00,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:00,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 17:52:00,667 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:00,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:00,667 INFO L85 PathProgramCache]: Analyzing trace with hash -599093414, now seen corresponding path program 76 times [2022-01-18 17:52:00,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:00,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714167541] [2022-01-18 17:52:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:00,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:00,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:00,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714167541] [2022-01-18 17:52:00,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714167541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:00,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:00,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:00,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036114282] [2022-01-18 17:52:00,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:00,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:00,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:00,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:00,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:00,875 INFO L87 Difference]: Start difference. First operand 3826 states and 12914 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:02,021 INFO L93 Difference]: Finished difference Result 5481 states and 18673 transitions. [2022-01-18 17:52:02,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 17:52:02,021 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:02,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:02,032 INFO L225 Difference]: With dead ends: 5481 [2022-01-18 17:52:02,032 INFO L226 Difference]: Without dead ends: 5414 [2022-01-18 17:52:02,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=203, Invalid=1959, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 17:52:02,033 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 347 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:02,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1661 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:52:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2022-01-18 17:52:02,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 3878. [2022-01-18 17:52:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 3877 states have (on average 3.3660046427650245) internal successors, (13050), 3877 states have internal predecessors, (13050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 13050 transitions. [2022-01-18 17:52:02,095 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 13050 transitions. Word has length 39 [2022-01-18 17:52:02,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:02,095 INFO L470 AbstractCegarLoop]: Abstraction has 3878 states and 13050 transitions. [2022-01-18 17:52:02,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 13050 transitions. [2022-01-18 17:52:02,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:02,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:02,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:02,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 17:52:02,101 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:02,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:02,101 INFO L85 PathProgramCache]: Analyzing trace with hash -771236632, now seen corresponding path program 77 times [2022-01-18 17:52:02,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:02,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223348516] [2022-01-18 17:52:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:02,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:02,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:02,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223348516] [2022-01-18 17:52:02,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223348516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:02,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:02,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:02,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460663022] [2022-01-18 17:52:02,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:02,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:02,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:02,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:02,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:02,312 INFO L87 Difference]: Start difference. First operand 3878 states and 13050 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:03,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:03,475 INFO L93 Difference]: Finished difference Result 5469 states and 18633 transitions. [2022-01-18 17:52:03,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 17:52:03,475 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:03,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:03,487 INFO L225 Difference]: With dead ends: 5469 [2022-01-18 17:52:03,487 INFO L226 Difference]: Without dead ends: 5406 [2022-01-18 17:52:03,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1961, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 17:52:03,488 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 344 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:03,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1690 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:52:03,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2022-01-18 17:52:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 3870. [2022-01-18 17:52:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3869 states have (on average 3.3667614370638406) internal successors, (13026), 3869 states have internal predecessors, (13026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 13026 transitions. [2022-01-18 17:52:03,554 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 13026 transitions. Word has length 39 [2022-01-18 17:52:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:03,554 INFO L470 AbstractCegarLoop]: Abstraction has 3870 states and 13026 transitions. [2022-01-18 17:52:03,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 13026 transitions. [2022-01-18 17:52:03,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:03,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:03,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:03,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 17:52:03,560 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:03,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1720896508, now seen corresponding path program 78 times [2022-01-18 17:52:03,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:03,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820798975] [2022-01-18 17:52:03,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:03,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:03,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:03,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820798975] [2022-01-18 17:52:03,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820798975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:03,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:03,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:03,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46459418] [2022-01-18 17:52:03,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:03,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:03,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:03,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:03,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:03,769 INFO L87 Difference]: Start difference. First operand 3870 states and 13026 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:04,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:04,895 INFO L93 Difference]: Finished difference Result 5477 states and 18645 transitions. [2022-01-18 17:52:04,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 17:52:04,895 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:04,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:04,906 INFO L225 Difference]: With dead ends: 5477 [2022-01-18 17:52:04,906 INFO L226 Difference]: Without dead ends: 5334 [2022-01-18 17:52:04,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 17:52:04,907 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 336 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:04,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1763 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:52:04,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-01-18 17:52:04,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 3818. [2022-01-18 17:52:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3817 states have (on average 3.378045585538381) internal successors, (12894), 3817 states have internal predecessors, (12894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 12894 transitions. [2022-01-18 17:52:04,963 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 12894 transitions. Word has length 39 [2022-01-18 17:52:04,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:04,964 INFO L470 AbstractCegarLoop]: Abstraction has 3818 states and 12894 transitions. [2022-01-18 17:52:04,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 12894 transitions. [2022-01-18 17:52:04,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:04,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:04,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:04,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 17:52:04,969 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:04,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:04,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1555263514, now seen corresponding path program 79 times [2022-01-18 17:52:04,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:04,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628588525] [2022-01-18 17:52:04,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:04,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:05,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:05,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628588525] [2022-01-18 17:52:05,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628588525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:05,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:05,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:52:05,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965691122] [2022-01-18 17:52:05,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:05,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:52:05,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:05,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:52:05,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:52:05,184 INFO L87 Difference]: Start difference. First operand 3818 states and 12894 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:08,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:08,310 INFO L93 Difference]: Finished difference Result 9174 states and 31032 transitions. [2022-01-18 17:52:08,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 17:52:08,310 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:08,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:08,328 INFO L225 Difference]: With dead ends: 9174 [2022-01-18 17:52:08,329 INFO L226 Difference]: Without dead ends: 9044 [2022-01-18 17:52:08,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3103 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=708, Invalid=8604, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 17:52:08,330 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 598 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 4762 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 4851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:08,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [598 Valid, 3510 Invalid, 4851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4762 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:52:08,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2022-01-18 17:52:08,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 4543. [2022-01-18 17:52:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4543 states, 4542 states have (on average 3.403566710700132) internal successors, (15459), 4542 states have internal predecessors, (15459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 4543 states and 15459 transitions. [2022-01-18 17:52:08,411 INFO L78 Accepts]: Start accepts. Automaton has 4543 states and 15459 transitions. Word has length 39 [2022-01-18 17:52:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:08,412 INFO L470 AbstractCegarLoop]: Abstraction has 4543 states and 15459 transitions. [2022-01-18 17:52:08,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4543 states and 15459 transitions. [2022-01-18 17:52:08,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:08,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:08,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:08,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 17:52:08,418 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash -164352456, now seen corresponding path program 80 times [2022-01-18 17:52:08,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:08,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719254828] [2022-01-18 17:52:08,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:08,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:08,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:08,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:08,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719254828] [2022-01-18 17:52:08,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719254828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:08,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:08,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:52:08,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878770276] [2022-01-18 17:52:08,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:08,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:52:08,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:08,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:52:08,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:52:08,620 INFO L87 Difference]: Start difference. First operand 4543 states and 15459 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:12,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:12,758 INFO L93 Difference]: Finished difference Result 11582 states and 39219 transitions. [2022-01-18 17:52:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-01-18 17:52:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:12,782 INFO L225 Difference]: With dead ends: 11582 [2022-01-18 17:52:12,782 INFO L226 Difference]: Without dead ends: 11476 [2022-01-18 17:52:12,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6011 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1123, Invalid=15133, Unknown=0, NotChecked=0, Total=16256 [2022-01-18 17:52:12,784 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 725 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 5307 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 5451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 5307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:12,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 3640 Invalid, 5451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 5307 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 17:52:12,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11476 states. [2022-01-18 17:52:12,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11476 to 5005. [2022-01-18 17:52:12,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5005 states, 5004 states have (on average 3.4332533972821744) internal successors, (17180), 5004 states have internal predecessors, (17180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:12,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 17180 transitions. [2022-01-18 17:52:12,912 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 17180 transitions. Word has length 39 [2022-01-18 17:52:12,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:12,913 INFO L470 AbstractCegarLoop]: Abstraction has 5005 states and 17180 transitions. [2022-01-18 17:52:12,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:12,913 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 17180 transitions. [2022-01-18 17:52:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:12,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:12,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:12,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 17:52:12,920 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:12,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:12,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1944950758, now seen corresponding path program 81 times [2022-01-18 17:52:12,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:12,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490098362] [2022-01-18 17:52:12,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:12,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:13,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:13,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490098362] [2022-01-18 17:52:13,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490098362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:13,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:13,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:52:13,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626330415] [2022-01-18 17:52:13,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:13,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:52:13,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:13,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:52:13,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:52:13,115 INFO L87 Difference]: Start difference. First operand 5005 states and 17180 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:17,437 INFO L93 Difference]: Finished difference Result 12191 states and 41382 transitions. [2022-01-18 17:52:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-01-18 17:52:17,438 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:17,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:17,463 INFO L225 Difference]: With dead ends: 12191 [2022-01-18 17:52:17,463 INFO L226 Difference]: Without dead ends: 12052 [2022-01-18 17:52:17,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6441 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1171, Invalid=16121, Unknown=0, NotChecked=0, Total=17292 [2022-01-18 17:52:17,465 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 731 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 5463 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 5463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:17,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 3700 Invalid, 5629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 5463 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 17:52:17,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12052 states. [2022-01-18 17:52:17,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12052 to 5161. [2022-01-18 17:52:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 3.442829457364341) internal successors, (17765), 5160 states have internal predecessors, (17765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 17765 transitions. [2022-01-18 17:52:17,586 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 17765 transitions. Word has length 39 [2022-01-18 17:52:17,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:17,586 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 17765 transitions. [2022-01-18 17:52:17,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:17,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 17765 transitions. [2022-01-18 17:52:17,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:17,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:17,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:17,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 17:52:17,594 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:17,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1941200922, now seen corresponding path program 82 times [2022-01-18 17:52:17,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:17,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320101021] [2022-01-18 17:52:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:17,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:17,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:17,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320101021] [2022-01-18 17:52:17,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320101021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:17,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:17,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:52:17,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424198228] [2022-01-18 17:52:17,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:17,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:52:17,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:17,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:52:17,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:52:17,795 INFO L87 Difference]: Start difference. First operand 5161 states and 17765 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:22,458 INFO L93 Difference]: Finished difference Result 12631 states and 43057 transitions. [2022-01-18 17:52:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-01-18 17:52:22,459 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:22,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:22,486 INFO L225 Difference]: With dead ends: 12631 [2022-01-18 17:52:22,486 INFO L226 Difference]: Without dead ends: 12414 [2022-01-18 17:52:22,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6976 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1168, Invalid=17464, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 17:52:22,488 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 720 mSDsluCounter, 4236 mSDsCounter, 0 mSdLazyCounter, 6316 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 4247 SdHoareTripleChecker+Invalid, 6482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 6316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:22,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 4247 Invalid, 6482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 6316 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-18 17:52:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12414 states. [2022-01-18 17:52:22,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12414 to 5293. [2022-01-18 17:52:22,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 3.4569160997732427) internal successors, (18294), 5292 states have internal predecessors, (18294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:22,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 18294 transitions. [2022-01-18 17:52:22,628 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 18294 transitions. Word has length 39 [2022-01-18 17:52:22,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:22,628 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 18294 transitions. [2022-01-18 17:52:22,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 18294 transitions. [2022-01-18 17:52:22,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:22,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:22,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:22,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 17:52:22,636 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:22,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash -515814522, now seen corresponding path program 83 times [2022-01-18 17:52:22,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:22,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951306334] [2022-01-18 17:52:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:22,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:22,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:22,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:22,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951306334] [2022-01-18 17:52:22,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951306334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:22,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:22,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:22,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540517977] [2022-01-18 17:52:22,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:22,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:22,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:22,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:22,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:22,843 INFO L87 Difference]: Start difference. First operand 5293 states and 18294 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:26,338 INFO L93 Difference]: Finished difference Result 10886 states and 37113 transitions. [2022-01-18 17:52:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-01-18 17:52:26,339 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:26,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:26,360 INFO L225 Difference]: With dead ends: 10886 [2022-01-18 17:52:26,360 INFO L226 Difference]: Without dead ends: 10819 [2022-01-18 17:52:26,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3761 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=796, Invalid=10334, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 17:52:26,361 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 643 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 5277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:26,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 3911 Invalid, 5277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 5173 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:52:26,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10819 states. [2022-01-18 17:52:26,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10819 to 5327. [2022-01-18 17:52:26,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 3.4555013143071722) internal successors, (18404), 5326 states have internal predecessors, (18404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 18404 transitions. [2022-01-18 17:52:26,466 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 18404 transitions. Word has length 39 [2022-01-18 17:52:26,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:26,466 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 18404 transitions. [2022-01-18 17:52:26,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 18404 transitions. [2022-01-18 17:52:26,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:26,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:26,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:26,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 17:52:26,475 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:26,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:26,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2059536804, now seen corresponding path program 84 times [2022-01-18 17:52:26,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:26,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772422627] [2022-01-18 17:52:26,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:26,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:26,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:26,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772422627] [2022-01-18 17:52:26,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772422627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:26,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:26,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:26,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083805975] [2022-01-18 17:52:26,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:26,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:26,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:26,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:26,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:26,683 INFO L87 Difference]: Start difference. First operand 5327 states and 18404 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:31,199 INFO L93 Difference]: Finished difference Result 12407 states and 42028 transitions. [2022-01-18 17:52:31,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-01-18 17:52:31,200 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:31,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:31,227 INFO L225 Difference]: With dead ends: 12407 [2022-01-18 17:52:31,227 INFO L226 Difference]: Without dead ends: 12364 [2022-01-18 17:52:31,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6917 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1217, Invalid=17415, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 17:52:31,229 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 756 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 5769 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 5926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 5769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:31,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 4059 Invalid, 5926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 5769 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 17:52:31,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12364 states. [2022-01-18 17:52:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12364 to 5367. [2022-01-18 17:52:31,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5367 states, 5366 states have (on average 3.4549012299664557) internal successors, (18539), 5366 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:31,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 18539 transitions. [2022-01-18 17:52:31,351 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 18539 transitions. Word has length 39 [2022-01-18 17:52:31,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:31,351 INFO L470 AbstractCegarLoop]: Abstraction has 5367 states and 18539 transitions. [2022-01-18 17:52:31,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 18539 transitions. [2022-01-18 17:52:31,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:31,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:31,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:31,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 17:52:31,359 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:31,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:31,359 INFO L85 PathProgramCache]: Analyzing trace with hash 278938502, now seen corresponding path program 85 times [2022-01-18 17:52:31,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:31,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126951776] [2022-01-18 17:52:31,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:31,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:31,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:31,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126951776] [2022-01-18 17:52:31,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126951776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:31,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:31,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:31,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695652554] [2022-01-18 17:52:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:31,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:31,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:31,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:31,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:31,577 INFO L87 Difference]: Start difference. First operand 5367 states and 18539 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:36,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:36,232 INFO L93 Difference]: Finished difference Result 12963 states and 44015 transitions. [2022-01-18 17:52:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-01-18 17:52:36,232 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:36,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:36,260 INFO L225 Difference]: With dead ends: 12963 [2022-01-18 17:52:36,260 INFO L226 Difference]: Without dead ends: 12887 [2022-01-18 17:52:36,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7138 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1246, Invalid=17936, Unknown=0, NotChecked=0, Total=19182 [2022-01-18 17:52:36,261 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 755 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 6096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:36,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 4090 Invalid, 6096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-18 17:52:36,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12887 states. [2022-01-18 17:52:36,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12887 to 5329. [2022-01-18 17:52:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5329 states, 5328 states have (on average 3.459834834834835) internal successors, (18434), 5328 states have internal predecessors, (18434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5329 states to 5329 states and 18434 transitions. [2022-01-18 17:52:36,377 INFO L78 Accepts]: Start accepts. Automaton has 5329 states and 18434 transitions. Word has length 39 [2022-01-18 17:52:36,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:36,377 INFO L470 AbstractCegarLoop]: Abstraction has 5329 states and 18434 transitions. [2022-01-18 17:52:36,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:36,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5329 states and 18434 transitions. [2022-01-18 17:52:36,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:36,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:36,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:36,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 17:52:36,385 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:36,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash 899372902, now seen corresponding path program 86 times [2022-01-18 17:52:36,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:36,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110693727] [2022-01-18 17:52:36,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:36,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:36,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:36,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110693727] [2022-01-18 17:52:36,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110693727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:36,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:36,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:36,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750496279] [2022-01-18 17:52:36,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:36,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:36,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:36,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:36,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:36,592 INFO L87 Difference]: Start difference. First operand 5329 states and 18434 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:38,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:38,817 INFO L93 Difference]: Finished difference Result 9492 states and 32707 transitions. [2022-01-18 17:52:38,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-01-18 17:52:38,817 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:38,836 INFO L225 Difference]: With dead ends: 9492 [2022-01-18 17:52:38,836 INFO L226 Difference]: Without dead ends: 9425 [2022-01-18 17:52:38,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1533 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=454, Invalid=4948, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 17:52:38,837 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 518 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 3726 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:38,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [518 Valid, 2665 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3726 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:52:38,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9425 states. [2022-01-18 17:52:38,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9425 to 5341. [2022-01-18 17:52:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 3.4569288389513106) internal successors, (18460), 5340 states have internal predecessors, (18460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:38,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 18460 transitions. [2022-01-18 17:52:38,933 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 18460 transitions. Word has length 39 [2022-01-18 17:52:38,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:38,933 INFO L470 AbstractCegarLoop]: Abstraction has 5341 states and 18460 transitions. [2022-01-18 17:52:38,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:38,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 18460 transitions. [2022-01-18 17:52:38,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:38,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:38,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:38,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 17:52:38,941 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:38,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:38,942 INFO L85 PathProgramCache]: Analyzing trace with hash 768778054, now seen corresponding path program 87 times [2022-01-18 17:52:38,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:38,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101273801] [2022-01-18 17:52:38,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:38,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:39,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:39,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101273801] [2022-01-18 17:52:39,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101273801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:39,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:39,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:39,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530168164] [2022-01-18 17:52:39,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:39,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:39,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:39,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:39,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:39,152 INFO L87 Difference]: Start difference. First operand 5341 states and 18460 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:41,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:41,123 INFO L93 Difference]: Finished difference Result 9000 states and 30945 transitions. [2022-01-18 17:52:41,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-18 17:52:41,123 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:41,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:41,142 INFO L225 Difference]: With dead ends: 9000 [2022-01-18 17:52:41,142 INFO L226 Difference]: Without dead ends: 8937 [2022-01-18 17:52:41,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=431, Invalid=4539, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 17:52:41,143 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 487 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:41,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 2321 Invalid, 3315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:52:41,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8937 states. [2022-01-18 17:52:41,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8937 to 5333. [2022-01-18 17:52:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5333 states, 5332 states have (on average 3.458364591147787) internal successors, (18440), 5332 states have internal predecessors, (18440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:41,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 18440 transitions. [2022-01-18 17:52:41,272 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 18440 transitions. Word has length 39 [2022-01-18 17:52:41,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:41,272 INFO L470 AbstractCegarLoop]: Abstraction has 5333 states and 18440 transitions. [2022-01-18 17:52:41,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:41,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 18440 transitions. [2022-01-18 17:52:41,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:41,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:41,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:41,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 17:52:41,280 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:41,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:41,280 INFO L85 PathProgramCache]: Analyzing trace with hash 633099462, now seen corresponding path program 88 times [2022-01-18 17:52:41,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:41,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025913843] [2022-01-18 17:52:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:41,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:41,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:41,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025913843] [2022-01-18 17:52:41,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025913843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:41,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:41,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:41,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072285627] [2022-01-18 17:52:41,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:41,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:41,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:41,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:41,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:41,488 INFO L87 Difference]: Start difference. First operand 5333 states and 18440 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:44,361 INFO L93 Difference]: Finished difference Result 9823 states and 33613 transitions. [2022-01-18 17:52:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-01-18 17:52:44,361 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:44,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:44,382 INFO L225 Difference]: With dead ends: 9823 [2022-01-18 17:52:44,382 INFO L226 Difference]: Without dead ends: 9780 [2022-01-18 17:52:44,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3371 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=783, Invalid=9317, Unknown=0, NotChecked=0, Total=10100 [2022-01-18 17:52:44,384 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 634 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 3574 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 3713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 3574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:44,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 2439 Invalid, 3713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 3574 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:52:44,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9780 states. [2022-01-18 17:52:44,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 5345. [2022-01-18 17:52:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5345 states, 5344 states have (on average 3.456961077844311) internal successors, (18474), 5344 states have internal predecessors, (18474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5345 states to 5345 states and 18474 transitions. [2022-01-18 17:52:44,510 INFO L78 Accepts]: Start accepts. Automaton has 5345 states and 18474 transitions. Word has length 39 [2022-01-18 17:52:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:44,510 INFO L470 AbstractCegarLoop]: Abstraction has 5345 states and 18474 transitions. [2022-01-18 17:52:44,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:44,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5345 states and 18474 transitions. [2022-01-18 17:52:44,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:44,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:44,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:44,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 17:52:44,519 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:44,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:44,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1147498840, now seen corresponding path program 89 times [2022-01-18 17:52:44,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:44,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524365107] [2022-01-18 17:52:44,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:44,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:44,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:44,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:44,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524365107] [2022-01-18 17:52:44,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524365107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:44,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:44,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:44,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719066317] [2022-01-18 17:52:44,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:44,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:44,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:44,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:44,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:44,729 INFO L87 Difference]: Start difference. First operand 5345 states and 18474 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:47,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:47,992 INFO L93 Difference]: Finished difference Result 10921 states and 37303 transitions. [2022-01-18 17:52:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-01-18 17:52:47,993 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:47,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:48,014 INFO L225 Difference]: With dead ends: 10921 [2022-01-18 17:52:48,014 INFO L226 Difference]: Without dead ends: 10869 [2022-01-18 17:52:48,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4056 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=848, Invalid=10924, Unknown=0, NotChecked=0, Total=11772 [2022-01-18 17:52:48,015 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 675 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 4176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:48,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 2903 Invalid, 4176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:52:48,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-01-18 17:52:48,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 5333. [2022-01-18 17:52:48,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5333 states, 5332 states have (on average 3.458364591147787) internal successors, (18440), 5332 states have internal predecessors, (18440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 18440 transitions. [2022-01-18 17:52:48,115 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 18440 transitions. Word has length 39 [2022-01-18 17:52:48,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:48,116 INFO L470 AbstractCegarLoop]: Abstraction has 5333 states and 18440 transitions. [2022-01-18 17:52:48,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 18440 transitions. [2022-01-18 17:52:48,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:48,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:48,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:48,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 17:52:48,124 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:48,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1551583032, now seen corresponding path program 90 times [2022-01-18 17:52:48,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:48,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603186253] [2022-01-18 17:52:48,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:48,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:48,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:48,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603186253] [2022-01-18 17:52:48,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603186253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:48,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:48,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:48,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284379578] [2022-01-18 17:52:48,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:48,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:48,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:48,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:48,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:48,329 INFO L87 Difference]: Start difference. First operand 5333 states and 18440 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:50,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:50,397 INFO L93 Difference]: Finished difference Result 9138 states and 31246 transitions. [2022-01-18 17:52:50,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 17:52:50,397 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:50,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:50,417 INFO L225 Difference]: With dead ends: 9138 [2022-01-18 17:52:50,417 INFO L226 Difference]: Without dead ends: 9083 [2022-01-18 17:52:50,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1595 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=475, Invalid=5075, Unknown=0, NotChecked=0, Total=5550 [2022-01-18 17:52:50,418 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 509 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 3285 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:50,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 2321 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3285 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:52:50,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9083 states. [2022-01-18 17:52:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9083 to 5335. [2022-01-18 17:52:50,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 3.4576302962129732) internal successors, (18443), 5334 states have internal predecessors, (18443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:50,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 18443 transitions. [2022-01-18 17:52:50,541 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 18443 transitions. Word has length 39 [2022-01-18 17:52:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:50,541 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 18443 transitions. [2022-01-18 17:52:50,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 18443 transitions. [2022-01-18 17:52:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:50,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:50,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:50,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 17:52:50,549 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:50,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:50,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1570732042, now seen corresponding path program 91 times [2022-01-18 17:52:50,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:50,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744213924] [2022-01-18 17:52:50,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:50,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:50,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:50,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744213924] [2022-01-18 17:52:50,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744213924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:50,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:50,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:50,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127369115] [2022-01-18 17:52:50,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:50,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:50,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:50,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:50,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:50,767 INFO L87 Difference]: Start difference. First operand 5335 states and 18443 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:53,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:53,264 INFO L93 Difference]: Finished difference Result 10291 states and 35128 transitions. [2022-01-18 17:52:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 17:52:53,265 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:53,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:53,286 INFO L225 Difference]: With dead ends: 10291 [2022-01-18 17:52:53,286 INFO L226 Difference]: Without dead ends: 10165 [2022-01-18 17:52:53,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2127 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=553, Invalid=6419, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 17:52:53,287 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 545 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 3992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:53,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 2931 Invalid, 3992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:52:53,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10165 states. [2022-01-18 17:52:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10165 to 5415. [2022-01-18 17:52:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 3.4599187292205396) internal successors, (18732), 5414 states have internal predecessors, (18732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 18732 transitions. [2022-01-18 17:52:53,417 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 18732 transitions. Word has length 39 [2022-01-18 17:52:53,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:53,417 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 18732 transitions. [2022-01-18 17:52:53,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:53,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 18732 transitions. [2022-01-18 17:52:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:53,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:53,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:53,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 17:52:53,425 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:53,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:53,426 INFO L85 PathProgramCache]: Analyzing trace with hash 671316280, now seen corresponding path program 92 times [2022-01-18 17:52:53,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:53,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323171825] [2022-01-18 17:52:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:53,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:53,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:53,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323171825] [2022-01-18 17:52:53,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323171825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:53,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:53,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:53,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862206028] [2022-01-18 17:52:53,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:53,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:53,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:53,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:53,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:53,635 INFO L87 Difference]: Start difference. First operand 5415 states and 18732 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:52:58,796 INFO L93 Difference]: Finished difference Result 12683 states and 43069 transitions. [2022-01-18 17:52:58,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-01-18 17:52:58,796 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:52:58,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:52:58,824 INFO L225 Difference]: With dead ends: 12683 [2022-01-18 17:52:58,824 INFO L226 Difference]: Without dead ends: 12546 [2022-01-18 17:52:58,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7828 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1236, Invalid=19644, Unknown=0, NotChecked=0, Total=20880 [2022-01-18 17:52:58,826 INFO L933 BasicCegarLoop]: 474 mSDtfsCounter, 778 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 6979 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 7158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 6979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:52:58,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 4749 Invalid, 7158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 6979 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-18 17:52:58,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12546 states. [2022-01-18 17:52:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12546 to 5427. [2022-01-18 17:52:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 3.4600073719130116) internal successors, (18774), 5426 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 18774 transitions. [2022-01-18 17:52:58,955 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 18774 transitions. Word has length 39 [2022-01-18 17:52:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:52:58,955 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 18774 transitions. [2022-01-18 17:52:58,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:52:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 18774 transitions. [2022-01-18 17:52:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:52:58,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:52:58,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:52:58,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 17:52:58,963 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:52:58,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:52:58,964 INFO L85 PathProgramCache]: Analyzing trace with hash -823574620, now seen corresponding path program 93 times [2022-01-18 17:52:58,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:52:58,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452966085] [2022-01-18 17:52:58,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:52:58,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:52:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:52:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:52:59,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:52:59,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452966085] [2022-01-18 17:52:59,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452966085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:52:59,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:52:59,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:52:59,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802335298] [2022-01-18 17:52:59,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:52:59,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:52:59,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:52:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:52:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:52:59,172 INFO L87 Difference]: Start difference. First operand 5427 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:02,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:02,001 INFO L93 Difference]: Finished difference Result 9928 states and 33931 transitions. [2022-01-18 17:53:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 17:53:02,001 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:02,021 INFO L225 Difference]: With dead ends: 9928 [2022-01-18 17:53:02,021 INFO L226 Difference]: Without dead ends: 9864 [2022-01-18 17:53:02,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3135 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=733, Invalid=8773, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 17:53:02,022 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 629 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 3577 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 3710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:02,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2430 Invalid, 3710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3577 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:53:02,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-01-18 17:53:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 5419. [2022-01-18 17:53:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 3.4599483204134365) internal successors, (18746), 5418 states have internal predecessors, (18746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 18746 transitions. [2022-01-18 17:53:02,126 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 18746 transitions. Word has length 39 [2022-01-18 17:53:02,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:02,126 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 18746 transitions. [2022-01-18 17:53:02,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 18746 transitions. [2022-01-18 17:53:02,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:02,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:02,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:02,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 17:53:02,134 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:02,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:02,135 INFO L85 PathProgramCache]: Analyzing trace with hash 94908950, now seen corresponding path program 94 times [2022-01-18 17:53:02,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:02,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544598624] [2022-01-18 17:53:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:02,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:02,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:02,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544598624] [2022-01-18 17:53:02,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544598624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:02,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:02,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:02,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840982590] [2022-01-18 17:53:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:02,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:02,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:02,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:02,355 INFO L87 Difference]: Start difference. First operand 5419 states and 18746 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:04,389 INFO L93 Difference]: Finished difference Result 9190 states and 31423 transitions. [2022-01-18 17:53:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 17:53:04,389 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:04,409 INFO L225 Difference]: With dead ends: 9190 [2022-01-18 17:53:04,409 INFO L226 Difference]: Without dead ends: 9135 [2022-01-18 17:53:04,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=430, Invalid=4682, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 17:53:04,410 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 497 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 3357 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 3438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:04,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 2371 Invalid, 3438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3357 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:53:04,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9135 states. [2022-01-18 17:53:04,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9135 to 5425. [2022-01-18 17:53:04,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5425 states, 5424 states have (on average 3.458517699115044) internal successors, (18759), 5424 states have internal predecessors, (18759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5425 states to 5425 states and 18759 transitions. [2022-01-18 17:53:04,534 INFO L78 Accepts]: Start accepts. Automaton has 5425 states and 18759 transitions. Word has length 39 [2022-01-18 17:53:04,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:04,535 INFO L470 AbstractCegarLoop]: Abstraction has 5425 states and 18759 transitions. [2022-01-18 17:53:04,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5425 states and 18759 transitions. [2022-01-18 17:53:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:04,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:04,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:04,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 17:53:04,543 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:04,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:04,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1267561172, now seen corresponding path program 95 times [2022-01-18 17:53:04,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:04,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058890987] [2022-01-18 17:53:04,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:04,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:04,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:04,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058890987] [2022-01-18 17:53:04,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058890987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:04,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:04,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:04,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829322596] [2022-01-18 17:53:04,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:04,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:04,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:04,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:04,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:04,768 INFO L87 Difference]: Start difference. First operand 5425 states and 18759 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:07,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:07,326 INFO L93 Difference]: Finished difference Result 10376 states and 35342 transitions. [2022-01-18 17:53:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 17:53:07,327 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:07,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:07,350 INFO L225 Difference]: With dead ends: 10376 [2022-01-18 17:53:07,350 INFO L226 Difference]: Without dead ends: 10316 [2022-01-18 17:53:07,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2258 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=568, Invalid=6742, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 17:53:07,351 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 565 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:07,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2942 Invalid, 4028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 3923 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:53:07,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2022-01-18 17:53:07,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 5423. [2022-01-18 17:53:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 3.4588712652157874) internal successors, (18754), 5422 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 18754 transitions. [2022-01-18 17:53:07,482 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 18754 transitions. Word has length 39 [2022-01-18 17:53:07,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:07,482 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 18754 transitions. [2022-01-18 17:53:07,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 18754 transitions. [2022-01-18 17:53:07,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:07,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:07,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:07,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 17:53:07,491 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:07,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:07,491 INFO L85 PathProgramCache]: Analyzing trace with hash -812005370, now seen corresponding path program 96 times [2022-01-18 17:53:07,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:07,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814428893] [2022-01-18 17:53:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:07,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:07,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:07,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814428893] [2022-01-18 17:53:07,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814428893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:07,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:07,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:53:07,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077219227] [2022-01-18 17:53:07,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:07,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:53:07,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:07,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:53:07,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:53:07,699 INFO L87 Difference]: Start difference. First operand 5423 states and 18754 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:09,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:09,887 INFO L93 Difference]: Finished difference Result 10137 states and 34744 transitions. [2022-01-18 17:53:09,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-01-18 17:53:09,887 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:09,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:09,910 INFO L225 Difference]: With dead ends: 10137 [2022-01-18 17:53:09,910 INFO L226 Difference]: Without dead ends: 10061 [2022-01-18 17:53:09,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1705 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=464, Invalid=5236, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 17:53:09,911 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 504 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 3456 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 3541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:09,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 2574 Invalid, 3541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3456 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:53:09,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10061 states. [2022-01-18 17:53:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10061 to 5431. [2022-01-18 17:53:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 3.4567219152854514) internal successors, (18770), 5430 states have internal predecessors, (18770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:10,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 18770 transitions. [2022-01-18 17:53:10,029 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 18770 transitions. Word has length 39 [2022-01-18 17:53:10,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:10,029 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 18770 transitions. [2022-01-18 17:53:10,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:10,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 18770 transitions. [2022-01-18 17:53:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:10,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:10,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:10,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 17:53:10,037 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:10,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:10,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1830058982, now seen corresponding path program 97 times [2022-01-18 17:53:10,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:10,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649148996] [2022-01-18 17:53:10,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:10,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:10,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:10,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:10,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649148996] [2022-01-18 17:53:10,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649148996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:10,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:10,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:10,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579543243] [2022-01-18 17:53:10,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:10,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:10,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:10,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:10,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:10,246 INFO L87 Difference]: Start difference. First operand 5431 states and 18770 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:12,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:12,717 INFO L93 Difference]: Finished difference Result 10263 states and 35075 transitions. [2022-01-18 17:53:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-01-18 17:53:12,721 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:12,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:12,742 INFO L225 Difference]: With dead ends: 10263 [2022-01-18 17:53:12,742 INFO L226 Difference]: Without dead ends: 10177 [2022-01-18 17:53:12,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2062 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=540, Invalid=6266, Unknown=0, NotChecked=0, Total=6806 [2022-01-18 17:53:12,743 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 547 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 3848 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 3951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:12,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 2889 Invalid, 3951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3848 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:53:12,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10177 states. [2022-01-18 17:53:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10177 to 5411. [2022-01-18 17:53:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 3.4598890942698706) internal successors, (18718), 5410 states have internal predecessors, (18718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 18718 transitions. [2022-01-18 17:53:12,849 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 18718 transitions. Word has length 39 [2022-01-18 17:53:12,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:12,850 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 18718 transitions. [2022-01-18 17:53:12,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 18718 transitions. [2022-01-18 17:53:12,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:12,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:12,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:12,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 17:53:12,857 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:12,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:12,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1437771772, now seen corresponding path program 98 times [2022-01-18 17:53:12,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:12,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453299487] [2022-01-18 17:53:12,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:12,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:13,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:13,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453299487] [2022-01-18 17:53:13,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453299487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:13,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:13,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:53:13,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122863502] [2022-01-18 17:53:13,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:13,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:53:13,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:13,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:53:13,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:53:13,055 INFO L87 Difference]: Start difference. First operand 5411 states and 18718 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:16,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:16,213 INFO L93 Difference]: Finished difference Result 10604 states and 36407 transitions. [2022-01-18 17:53:16,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-18 17:53:16,213 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:16,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:16,234 INFO L225 Difference]: With dead ends: 10604 [2022-01-18 17:53:16,235 INFO L226 Difference]: Without dead ends: 10460 [2022-01-18 17:53:16,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3017 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=690, Invalid=8430, Unknown=0, NotChecked=0, Total=9120 [2022-01-18 17:53:16,235 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 561 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 4828 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 4911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 4828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:16,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 3563 Invalid, 4911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 4828 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:53:16,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10460 states. [2022-01-18 17:53:16,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10460 to 5619. [2022-01-18 17:53:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5619 states, 5618 states have (on average 3.450694197223211) internal successors, (19386), 5618 states have internal predecessors, (19386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:16,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5619 states to 5619 states and 19386 transitions. [2022-01-18 17:53:16,340 INFO L78 Accepts]: Start accepts. Automaton has 5619 states and 19386 transitions. Word has length 39 [2022-01-18 17:53:16,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:16,340 INFO L470 AbstractCegarLoop]: Abstraction has 5619 states and 19386 transitions. [2022-01-18 17:53:16,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:16,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5619 states and 19386 transitions. [2022-01-18 17:53:16,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:16,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:16,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:16,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 17:53:16,349 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:16,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:16,349 INFO L85 PathProgramCache]: Analyzing trace with hash -281844198, now seen corresponding path program 99 times [2022-01-18 17:53:16,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:16,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169148065] [2022-01-18 17:53:16,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:16,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:16,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:16,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:16,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169148065] [2022-01-18 17:53:16,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169148065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:16,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:16,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:53:16,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298813793] [2022-01-18 17:53:16,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:16,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:53:16,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:53:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:53:16,554 INFO L87 Difference]: Start difference. First operand 5619 states and 19386 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:20,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:20,806 INFO L93 Difference]: Finished difference Result 12549 states and 42583 transitions. [2022-01-18 17:53:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-01-18 17:53:20,807 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:20,834 INFO L225 Difference]: With dead ends: 12549 [2022-01-18 17:53:20,834 INFO L226 Difference]: Without dead ends: 12413 [2022-01-18 17:53:20,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5893 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1103, Invalid=14899, Unknown=0, NotChecked=0, Total=16002 [2022-01-18 17:53:20,836 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 690 mSDsluCounter, 3765 mSDsCounter, 0 mSdLazyCounter, 5370 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 3697 SdHoareTripleChecker+Invalid, 5510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 5370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:20,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 3697 Invalid, 5510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 5370 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 17:53:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12413 states. [2022-01-18 17:53:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12413 to 5767. [2022-01-18 17:53:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 5766 states have (on average 3.448664585501214) internal successors, (19885), 5766 states have internal predecessors, (19885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 19885 transitions. [2022-01-18 17:53:20,958 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 19885 transitions. Word has length 39 [2022-01-18 17:53:20,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:20,958 INFO L470 AbstractCegarLoop]: Abstraction has 5767 states and 19885 transitions. [2022-01-18 17:53:20,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 19885 transitions. [2022-01-18 17:53:20,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:20,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:20,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:20,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 17:53:20,967 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:20,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2062442500, now seen corresponding path program 100 times [2022-01-18 17:53:20,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:20,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408824558] [2022-01-18 17:53:20,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:20,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:21,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:21,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408824558] [2022-01-18 17:53:21,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408824558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:21,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:21,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:53:21,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857956339] [2022-01-18 17:53:21,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:21,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:53:21,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:21,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:53:21,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:53:21,168 INFO L87 Difference]: Start difference. First operand 5767 states and 19885 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:25,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:25,581 INFO L93 Difference]: Finished difference Result 12984 states and 44180 transitions. [2022-01-18 17:53:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-01-18 17:53:25,581 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:25,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:25,610 INFO L225 Difference]: With dead ends: 12984 [2022-01-18 17:53:25,610 INFO L226 Difference]: Without dead ends: 12815 [2022-01-18 17:53:25,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6319 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1152, Invalid=15878, Unknown=0, NotChecked=0, Total=17030 [2022-01-18 17:53:25,612 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 696 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 5527 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 3757 SdHoareTripleChecker+Invalid, 5689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 5527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:25,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 3757 Invalid, 5689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 5527 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 17:53:25,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12815 states. [2022-01-18 17:53:25,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12815 to 5851. [2022-01-18 17:53:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5851 states, 5850 states have (on average 3.4483760683760685) internal successors, (20173), 5850 states have internal predecessors, (20173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:25,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5851 states to 5851 states and 20173 transitions. [2022-01-18 17:53:25,743 INFO L78 Accepts]: Start accepts. Automaton has 5851 states and 20173 transitions. Word has length 39 [2022-01-18 17:53:25,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:25,743 INFO L470 AbstractCegarLoop]: Abstraction has 5851 states and 20173 transitions. [2022-01-18 17:53:25,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5851 states and 20173 transitions. [2022-01-18 17:53:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:25,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:25,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:25,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 17:53:25,752 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:25,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1823709180, now seen corresponding path program 101 times [2022-01-18 17:53:25,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:25,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969574316] [2022-01-18 17:53:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:25,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:25,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:25,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969574316] [2022-01-18 17:53:25,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969574316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:25,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:25,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:53:25,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592505159] [2022-01-18 17:53:25,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:25,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:53:25,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:25,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:53:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:53:25,967 INFO L87 Difference]: Start difference. First operand 5851 states and 20173 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:30,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:30,734 INFO L93 Difference]: Finished difference Result 12513 states and 42749 transitions. [2022-01-18 17:53:30,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-01-18 17:53:30,734 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:30,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:30,761 INFO L225 Difference]: With dead ends: 12513 [2022-01-18 17:53:30,761 INFO L226 Difference]: Without dead ends: 12266 [2022-01-18 17:53:30,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6851 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1151, Invalid=17209, Unknown=0, NotChecked=0, Total=18360 [2022-01-18 17:53:30,763 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 688 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 6379 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 6542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 6379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:30,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 4304 Invalid, 6542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 6379 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-18 17:53:30,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12266 states. [2022-01-18 17:53:30,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12266 to 5419. [2022-01-18 17:53:30,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 3.4562569213732006) internal successors, (18726), 5418 states have internal predecessors, (18726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 18726 transitions. [2022-01-18 17:53:30,893 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 18726 transitions. Word has length 39 [2022-01-18 17:53:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:30,893 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 18726 transitions. [2022-01-18 17:53:30,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 18726 transitions. [2022-01-18 17:53:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:30,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:30,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:30,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 17:53:30,902 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1162564890, now seen corresponding path program 102 times [2022-01-18 17:53:30,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:30,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035070352] [2022-01-18 17:53:30,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:30,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:31,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:31,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035070352] [2022-01-18 17:53:31,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035070352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:31,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:31,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:31,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135051002] [2022-01-18 17:53:31,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:31,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:31,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:31,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:31,130 INFO L87 Difference]: Start difference. First operand 5419 states and 18726 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:34,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:34,562 INFO L93 Difference]: Finished difference Result 10652 states and 36464 transitions. [2022-01-18 17:53:34,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-01-18 17:53:34,562 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:34,585 INFO L225 Difference]: With dead ends: 10652 [2022-01-18 17:53:34,585 INFO L226 Difference]: Without dead ends: 10585 [2022-01-18 17:53:34,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3583 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=755, Invalid=9957, Unknown=0, NotChecked=0, Total=10712 [2022-01-18 17:53:34,586 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 602 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 5255 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 3932 SdHoareTripleChecker+Invalid, 5349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 5255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:34,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 3932 Invalid, 5349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 5255 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:53:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10585 states. [2022-01-18 17:53:34,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10585 to 5437. [2022-01-18 17:53:34,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5436 states have (on average 3.4536423841059603) internal successors, (18774), 5436 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18774 transitions. [2022-01-18 17:53:34,700 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18774 transitions. Word has length 39 [2022-01-18 17:53:34,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:34,700 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18774 transitions. [2022-01-18 17:53:34,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:34,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18774 transitions. [2022-01-18 17:53:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:34,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:34,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:34,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 17:53:34,709 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:34,709 INFO L85 PathProgramCache]: Analyzing trace with hash -557051080, now seen corresponding path program 103 times [2022-01-18 17:53:34,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:34,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931849073] [2022-01-18 17:53:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:34,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:34,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:34,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:34,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931849073] [2022-01-18 17:53:34,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931849073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:34,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:34,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:34,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78792119] [2022-01-18 17:53:34,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:34,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:34,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:34,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:34,934 INFO L87 Difference]: Start difference. First operand 5437 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:39,477 INFO L93 Difference]: Finished difference Result 12169 states and 41355 transitions. [2022-01-18 17:53:39,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-01-18 17:53:39,477 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:39,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:39,504 INFO L225 Difference]: With dead ends: 12169 [2022-01-18 17:53:39,504 INFO L226 Difference]: Without dead ends: 12126 [2022-01-18 17:53:39,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6673 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1175, Invalid=16915, Unknown=0, NotChecked=0, Total=18090 [2022-01-18 17:53:39,506 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 719 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 5835 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 5986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 5835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:39,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 4087 Invalid, 5986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 5835 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 17:53:39,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12126 states. [2022-01-18 17:53:39,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12126 to 5461. [2022-01-18 17:53:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5461 states, 5460 states have (on average 3.451831501831502) internal successors, (18847), 5460 states have internal predecessors, (18847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:39,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 18847 transitions. [2022-01-18 17:53:39,645 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 18847 transitions. Word has length 39 [2022-01-18 17:53:39,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:39,645 INFO L470 AbstractCegarLoop]: Abstraction has 5461 states and 18847 transitions. [2022-01-18 17:53:39,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:39,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 18847 transitions. [2022-01-18 17:53:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:39,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:39,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:39,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 17:53:39,653 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:39,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:39,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1957317914, now seen corresponding path program 104 times [2022-01-18 17:53:39,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:39,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094538669] [2022-01-18 17:53:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:39,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:39,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:39,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:39,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094538669] [2022-01-18 17:53:39,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094538669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:39,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:39,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:39,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994734749] [2022-01-18 17:53:39,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:39,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:39,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:39,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:39,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:39,868 INFO L87 Difference]: Start difference. First operand 5461 states and 18847 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:44,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:44,568 INFO L93 Difference]: Finished difference Result 12677 states and 43230 transitions. [2022-01-18 17:53:44,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-01-18 17:53:44,568 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:44,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:44,597 INFO L225 Difference]: With dead ends: 12677 [2022-01-18 17:53:44,597 INFO L226 Difference]: Without dead ends: 12601 [2022-01-18 17:53:44,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6890 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1205, Invalid=17427, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 17:53:44,599 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 719 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 5998 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 6171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 5998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:44,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 4126 Invalid, 6171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 5998 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-18 17:53:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12601 states. [2022-01-18 17:53:44,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12601 to 5431. [2022-01-18 17:53:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 3.4556169429097605) internal successors, (18764), 5430 states have internal predecessors, (18764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:44,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 18764 transitions. [2022-01-18 17:53:44,725 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 18764 transitions. Word has length 39 [2022-01-18 17:53:44,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:44,725 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 18764 transitions. [2022-01-18 17:53:44,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:44,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 18764 transitions. [2022-01-18 17:53:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:44,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:44,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:44,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 17:53:44,732 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:44,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:44,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1825858342, now seen corresponding path program 105 times [2022-01-18 17:53:44,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:44,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292858376] [2022-01-18 17:53:44,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:44,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:44,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:44,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292858376] [2022-01-18 17:53:44,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292858376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:44,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:44,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:44,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452350891] [2022-01-18 17:53:44,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:44,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:44,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:44,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:44,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:44,939 INFO L87 Difference]: Start difference. First operand 5431 states and 18764 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:47,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:47,087 INFO L93 Difference]: Finished difference Result 9270 states and 32084 transitions. [2022-01-18 17:53:47,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 17:53:47,088 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:47,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:47,135 INFO L225 Difference]: With dead ends: 9270 [2022-01-18 17:53:47,136 INFO L226 Difference]: Without dead ends: 9203 [2022-01-18 17:53:47,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1423 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=418, Invalid=4694, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 17:53:47,136 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 474 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 3830 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 3830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:47,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2692 Invalid, 3905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 3830 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:53:47,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2022-01-18 17:53:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 5449. [2022-01-18 17:53:47,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5448 states have (on average 3.4519089574155655) internal successors, (18806), 5448 states have internal predecessors, (18806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 18806 transitions. [2022-01-18 17:53:47,229 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 18806 transitions. Word has length 39 [2022-01-18 17:53:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:47,229 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 18806 transitions. [2022-01-18 17:53:47,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 18806 transitions. [2022-01-18 17:53:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:47,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:47,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:47,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 17:53:47,237 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:47,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1467788134, now seen corresponding path program 106 times [2022-01-18 17:53:47,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:47,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856577164] [2022-01-18 17:53:47,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:47,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:47,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:47,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:47,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856577164] [2022-01-18 17:53:47,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856577164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:47,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:47,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:47,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588528343] [2022-01-18 17:53:47,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:47,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:47,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:47,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:47,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:47,446 INFO L87 Difference]: Start difference. First operand 5449 states and 18806 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:49,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:49,371 INFO L93 Difference]: Finished difference Result 8819 states and 30408 transitions. [2022-01-18 17:53:49,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 17:53:49,371 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:49,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:49,391 INFO L225 Difference]: With dead ends: 8819 [2022-01-18 17:53:49,391 INFO L226 Difference]: Without dead ends: 8744 [2022-01-18 17:53:49,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=395, Invalid=4297, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 17:53:49,392 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 451 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 3343 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:49,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2355 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3343 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:53:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8744 states. [2022-01-18 17:53:49,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8744 to 5437. [2022-01-18 17:53:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5436 states have (on average 3.4536423841059603) internal successors, (18774), 5436 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:49,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18774 transitions. [2022-01-18 17:53:49,496 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18774 transitions. Word has length 39 [2022-01-18 17:53:49,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:49,496 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18774 transitions. [2022-01-18 17:53:49,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:49,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18774 transitions. [2022-01-18 17:53:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:49,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:49,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:49,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 17:53:49,505 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:49,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:49,505 INFO L85 PathProgramCache]: Analyzing trace with hash 160516920, now seen corresponding path program 107 times [2022-01-18 17:53:49,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:49,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364160467] [2022-01-18 17:53:49,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:49,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:49,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:49,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364160467] [2022-01-18 17:53:49,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364160467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:49,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:49,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:49,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354936198] [2022-01-18 17:53:49,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:49,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:49,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:49,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:49,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:49,718 INFO L87 Difference]: Start difference. First operand 5437 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:52,539 INFO L93 Difference]: Finished difference Result 9692 states and 33271 transitions. [2022-01-18 17:53:52,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 17:53:52,539 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:52,561 INFO L225 Difference]: With dead ends: 9692 [2022-01-18 17:53:52,561 INFO L226 Difference]: Without dead ends: 9649 [2022-01-18 17:53:52,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=717, Invalid=8789, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 17:53:52,562 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 619 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 3648 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 3648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:52,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [619 Valid, 2478 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 3648 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:53:52,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-01-18 17:53:52,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5452. [2022-01-18 17:53:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 5451 states have (on average 3.4525775087139974) internal successors, (18820), 5451 states have internal predecessors, (18820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 18820 transitions. [2022-01-18 17:53:52,676 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 18820 transitions. Word has length 39 [2022-01-18 17:53:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:52,676 INFO L470 AbstractCegarLoop]: Abstraction has 5452 states and 18820 transitions. [2022-01-18 17:53:52,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 18820 transitions. [2022-01-18 17:53:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:52,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:52,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:52,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 17:53:52,684 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:52,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:52,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1620081382, now seen corresponding path program 108 times [2022-01-18 17:53:52,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:52,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291021451] [2022-01-18 17:53:52,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:52,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:52,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:52,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:52,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291021451] [2022-01-18 17:53:52,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291021451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:52,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:52,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:52,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138040989] [2022-01-18 17:53:52,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:52,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:52,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:52,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:52,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:52,900 INFO L87 Difference]: Start difference. First operand 5452 states and 18820 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:56,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:56,088 INFO L93 Difference]: Finished difference Result 10742 states and 36805 transitions. [2022-01-18 17:53:56,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-01-18 17:53:56,088 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:56,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:56,110 INFO L225 Difference]: With dead ends: 10742 [2022-01-18 17:53:56,110 INFO L226 Difference]: Without dead ends: 10690 [2022-01-18 17:53:56,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3797 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=782, Invalid=10348, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 17:53:56,112 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 660 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 4107 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:56,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 2939 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4107 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:53:56,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-01-18 17:53:56,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 5446. [2022-01-18 17:53:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 5445 states have (on average 3.453443526170799) internal successors, (18804), 5445 states have internal predecessors, (18804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 18804 transitions. [2022-01-18 17:53:56,224 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 18804 transitions. Word has length 39 [2022-01-18 17:53:56,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:56,224 INFO L470 AbstractCegarLoop]: Abstraction has 5446 states and 18804 transitions. [2022-01-18 17:53:56,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:56,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 18804 transitions. [2022-01-18 17:53:56,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:56,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:56,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:56,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 17:53:56,232 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:56,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1376902310, now seen corresponding path program 109 times [2022-01-18 17:53:56,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:56,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49116599] [2022-01-18 17:53:56,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:56,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:56,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:56,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49116599] [2022-01-18 17:53:56,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49116599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:56,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:56,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:56,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242478626] [2022-01-18 17:53:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:56,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:56,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:56,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:56,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:56,439 INFO L87 Difference]: Start difference. First operand 5446 states and 18804 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:58,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:53:58,490 INFO L93 Difference]: Finished difference Result 8972 states and 30755 transitions. [2022-01-18 17:53:58,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 17:53:58,490 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:53:58,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:53:58,508 INFO L225 Difference]: With dead ends: 8972 [2022-01-18 17:53:58,508 INFO L226 Difference]: Without dead ends: 8909 [2022-01-18 17:53:58,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=422, Invalid=4690, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 17:53:58,508 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 475 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 3465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:53:58,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 2361 Invalid, 3465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3386 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:53:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8909 states. [2022-01-18 17:53:58,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8909 to 5449. [2022-01-18 17:53:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5448 states have (on average 3.452459618208517) internal successors, (18809), 5448 states have internal predecessors, (18809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:58,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 18809 transitions. [2022-01-18 17:53:58,600 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 18809 transitions. Word has length 39 [2022-01-18 17:53:58,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:53:58,600 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 18809 transitions. [2022-01-18 17:53:58,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:53:58,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 18809 transitions. [2022-01-18 17:53:58,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:53:58,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:53:58,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:53:58,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 17:53:58,609 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:53:58,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:53:58,609 INFO L85 PathProgramCache]: Analyzing trace with hash 990423228, now seen corresponding path program 110 times [2022-01-18 17:53:58,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:53:58,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629966370] [2022-01-18 17:53:58,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:53:58,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:53:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:53:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:53:58,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:53:58,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629966370] [2022-01-18 17:53:58,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629966370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:53:58,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:53:58,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:53:58,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678337813] [2022-01-18 17:53:58,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:53:58,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:53:58,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:53:58,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:53:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:53:58,817 INFO L87 Difference]: Start difference. First operand 5449 states and 18809 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:01,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:01,250 INFO L93 Difference]: Finished difference Result 10049 states and 34391 transitions. [2022-01-18 17:54:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-18 17:54:01,250 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:01,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:01,271 INFO L225 Difference]: With dead ends: 10049 [2022-01-18 17:54:01,271 INFO L226 Difference]: Without dead ends: 9898 [2022-01-18 17:54:01,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1938 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=495, Invalid=5985, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 17:54:01,272 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 504 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 4050 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 4139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:01,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 2953 Invalid, 4139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4050 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:54:01,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9898 states. [2022-01-18 17:54:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9898 to 5438. [2022-01-18 17:54:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 3.454662497700938) internal successors, (18783), 5437 states have internal predecessors, (18783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 18783 transitions. [2022-01-18 17:54:01,422 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 18783 transitions. Word has length 39 [2022-01-18 17:54:01,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:01,422 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 18783 transitions. [2022-01-18 17:54:01,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:01,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 18783 transitions. [2022-01-18 17:54:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:01,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:01,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:01,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 17:54:01,430 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:01,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:01,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1408668860, now seen corresponding path program 111 times [2022-01-18 17:54:01,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:01,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895759978] [2022-01-18 17:54:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:01,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:01,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:01,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895759978] [2022-01-18 17:54:01,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895759978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:01,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:01,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:01,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777404575] [2022-01-18 17:54:01,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:01,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:01,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:01,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:01,645 INFO L87 Difference]: Start difference. First operand 5438 states and 18783 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:06,837 INFO L93 Difference]: Finished difference Result 12395 states and 42218 transitions. [2022-01-18 17:54:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-01-18 17:54:06,838 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:06,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:06,863 INFO L225 Difference]: With dead ends: 12395 [2022-01-18 17:54:06,864 INFO L226 Difference]: Without dead ends: 12258 [2022-01-18 17:54:06,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7572 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1206, Invalid=19100, Unknown=0, NotChecked=0, Total=20306 [2022-01-18 17:54:06,865 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 748 mSDsluCounter, 4890 mSDsCounter, 0 mSdLazyCounter, 7017 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 7193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 7017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:06,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 4828 Invalid, 7193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 7017 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-18 17:54:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12258 states. [2022-01-18 17:54:06,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12258 to 5444. [2022-01-18 17:54:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 3.4537938636781185) internal successors, (18799), 5443 states have internal predecessors, (18799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:06,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 18799 transitions. [2022-01-18 17:54:06,989 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 18799 transitions. Word has length 39 [2022-01-18 17:54:06,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:06,989 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 18799 transitions. [2022-01-18 17:54:06,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:06,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 18799 transitions. [2022-01-18 17:54:06,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:06,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:06,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:06,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 17:54:06,998 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:06,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash 667716762, now seen corresponding path program 112 times [2022-01-18 17:54:06,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:06,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220566875] [2022-01-18 17:54:06,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:06,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:07,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:07,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220566875] [2022-01-18 17:54:07,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220566875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:07,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:07,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:07,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175393636] [2022-01-18 17:54:07,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:07,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:07,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:07,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:07,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:07,206 INFO L87 Difference]: Start difference. First operand 5444 states and 18799 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:09,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:09,985 INFO L93 Difference]: Finished difference Result 9713 states and 33303 transitions. [2022-01-18 17:54:09,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 17:54:09,986 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:09,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:10,006 INFO L225 Difference]: With dead ends: 9713 [2022-01-18 17:54:10,006 INFO L226 Difference]: Without dead ends: 9649 [2022-01-18 17:54:10,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2910 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=677, Invalid=8253, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 17:54:10,007 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 616 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 3607 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 3607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:10,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 2482 Invalid, 3743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 3607 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:54:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-01-18 17:54:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5450. [2022-01-18 17:54:10,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 3.4529271425949717) internal successors, (18815), 5449 states have internal predecessors, (18815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 18815 transitions. [2022-01-18 17:54:10,097 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 18815 transitions. Word has length 39 [2022-01-18 17:54:10,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:10,097 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 18815 transitions. [2022-01-18 17:54:10,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:10,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 18815 transitions. [2022-01-18 17:54:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:10,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:10,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:10,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 17:54:10,105 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:10,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:10,105 INFO L85 PathProgramCache]: Analyzing trace with hash -869702468, now seen corresponding path program 113 times [2022-01-18 17:54:10,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:10,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722316102] [2022-01-18 17:54:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:10,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:10,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:10,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722316102] [2022-01-18 17:54:10,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722316102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:10,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:10,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:10,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505825504] [2022-01-18 17:54:10,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:10,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:10,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:10,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:10,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:10,312 INFO L87 Difference]: Start difference. First operand 5450 states and 18815 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:12,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:12,257 INFO L93 Difference]: Finished difference Result 9005 states and 30847 transitions. [2022-01-18 17:54:12,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 17:54:12,258 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:12,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:12,276 INFO L225 Difference]: With dead ends: 9005 [2022-01-18 17:54:12,277 INFO L226 Difference]: Without dead ends: 8942 [2022-01-18 17:54:12,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=387, Invalid=4305, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 17:54:12,277 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 471 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 3484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:12,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 2424 Invalid, 3484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:54:12,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8942 states. [2022-01-18 17:54:12,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8942 to 5459. [2022-01-18 17:54:12,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 3.451080982044705) internal successors, (18836), 5458 states have internal predecessors, (18836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:12,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 18836 transitions. [2022-01-18 17:54:12,376 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 18836 transitions. Word has length 39 [2022-01-18 17:54:12,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:12,376 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 18836 transitions. [2022-01-18 17:54:12,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:12,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 18836 transitions. [2022-01-18 17:54:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:12,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:12,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:12,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 17:54:12,385 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:12,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:12,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1497623070, now seen corresponding path program 114 times [2022-01-18 17:54:12,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:12,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569354297] [2022-01-18 17:54:12,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:12,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:12,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:12,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:12,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569354297] [2022-01-18 17:54:12,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569354297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:12,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:12,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:12,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449218627] [2022-01-18 17:54:12,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:12,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:12,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:12,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:12,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:12,594 INFO L87 Difference]: Start difference. First operand 5459 states and 18836 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:15,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:15,115 INFO L93 Difference]: Finished difference Result 10156 states and 34664 transitions. [2022-01-18 17:54:15,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 17:54:15,116 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:15,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:15,137 INFO L225 Difference]: With dead ends: 10156 [2022-01-18 17:54:15,137 INFO L226 Difference]: Without dead ends: 10086 [2022-01-18 17:54:15,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2063 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=515, Invalid=6291, Unknown=0, NotChecked=0, Total=6806 [2022-01-18 17:54:15,138 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 539 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 4037 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 4131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 4037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:15,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2971 Invalid, 4131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 4037 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:54:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10086 states. [2022-01-18 17:54:15,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10086 to 5456. [2022-01-18 17:54:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5455 states have (on average 3.451512373968836) internal successors, (18828), 5455 states have internal predecessors, (18828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 18828 transitions. [2022-01-18 17:54:15,250 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 18828 transitions. Word has length 39 [2022-01-18 17:54:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:15,250 INFO L470 AbstractCegarLoop]: Abstraction has 5456 states and 18828 transitions. [2022-01-18 17:54:15,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 18828 transitions. [2022-01-18 17:54:15,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:15,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:15,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:15,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 17:54:15,259 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:15,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:15,259 INFO L85 PathProgramCache]: Analyzing trace with hash -518061130, now seen corresponding path program 115 times [2022-01-18 17:54:15,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:15,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50264313] [2022-01-18 17:54:15,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:15,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:15,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:15,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50264313] [2022-01-18 17:54:15,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50264313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:15,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:15,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:54:15,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075248571] [2022-01-18 17:54:15,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:15,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:54:15,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:15,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:54:15,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:54:15,457 INFO L87 Difference]: Start difference. First operand 5456 states and 18828 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:17,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:17,619 INFO L93 Difference]: Finished difference Result 9853 states and 33899 transitions. [2022-01-18 17:54:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-01-18 17:54:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:17,639 INFO L225 Difference]: With dead ends: 9853 [2022-01-18 17:54:17,639 INFO L226 Difference]: Without dead ends: 9777 [2022-01-18 17:54:17,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1588 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=438, Invalid=4964, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 17:54:17,640 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 469 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 3498 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:17,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 2608 Invalid, 3579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3498 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:54:17,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9777 states. [2022-01-18 17:54:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 5470. [2022-01-18 17:54:17,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 3.4481623697202415) internal successors, (18858), 5469 states have internal predecessors, (18858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 18858 transitions. [2022-01-18 17:54:17,740 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 18858 transitions. Word has length 39 [2022-01-18 17:54:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:17,740 INFO L470 AbstractCegarLoop]: Abstraction has 5470 states and 18858 transitions. [2022-01-18 17:54:17,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 18858 transitions. [2022-01-18 17:54:17,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:17,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:17,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:17,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 17:54:17,748 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:17,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:17,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2065983464, now seen corresponding path program 116 times [2022-01-18 17:54:17,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:17,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452325838] [2022-01-18 17:54:17,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:17,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:17,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:17,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452325838] [2022-01-18 17:54:17,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452325838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:17,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:17,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:17,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929690496] [2022-01-18 17:54:17,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:17,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:17,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:17,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:17,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:17,957 INFO L87 Difference]: Start difference. First operand 5470 states and 18858 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:20,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:20,363 INFO L93 Difference]: Finished difference Result 10000 states and 34295 transitions. [2022-01-18 17:54:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 17:54:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:20,384 INFO L225 Difference]: With dead ends: 10000 [2022-01-18 17:54:20,384 INFO L226 Difference]: Without dead ends: 9889 [2022-01-18 17:54:20,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1935 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=504, Invalid=5976, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 17:54:20,385 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 509 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 3962 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 4054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 3962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:20,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 2918 Invalid, 4054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 3962 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:54:20,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2022-01-18 17:54:20,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 5438. [2022-01-18 17:54:20,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 3.455030347618172) internal successors, (18785), 5437 states have internal predecessors, (18785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 18785 transitions. [2022-01-18 17:54:20,517 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 18785 transitions. Word has length 39 [2022-01-18 17:54:20,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:20,517 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 18785 transitions. [2022-01-18 17:54:20,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 18785 transitions. [2022-01-18 17:54:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:20,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:20,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:20,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 17:54:20,526 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:20,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:20,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1992006216, now seen corresponding path program 117 times [2022-01-18 17:54:20,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:20,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561716682] [2022-01-18 17:54:20,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:20,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:20,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:20,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:20,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561716682] [2022-01-18 17:54:20,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561716682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:20,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:20,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:20,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352010711] [2022-01-18 17:54:20,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:20,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:20,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:20,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:20,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:20,733 INFO L87 Difference]: Start difference. First operand 5438 states and 18785 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:23,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:23,661 INFO L93 Difference]: Finished difference Result 10965 states and 37273 transitions. [2022-01-18 17:54:23,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 17:54:23,662 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:23,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:23,685 INFO L225 Difference]: With dead ends: 10965 [2022-01-18 17:54:23,685 INFO L226 Difference]: Without dead ends: 10835 [2022-01-18 17:54:23,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2585 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=647, Invalid=7543, Unknown=0, NotChecked=0, Total=8190 [2022-01-18 17:54:23,687 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 539 mSDsluCounter, 3739 mSDsCounter, 0 mSdLazyCounter, 4709 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 4805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:23,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 3484 Invalid, 4805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 4709 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:54:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2022-01-18 17:54:23,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5645. [2022-01-18 17:54:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5644 states have (on average 3.4466690290574062) internal successors, (19453), 5644 states have internal predecessors, (19453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 19453 transitions. [2022-01-18 17:54:23,849 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 19453 transitions. Word has length 39 [2022-01-18 17:54:23,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:23,849 INFO L470 AbstractCegarLoop]: Abstraction has 5645 states and 19453 transitions. [2022-01-18 17:54:23,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 19453 transitions. [2022-01-18 17:54:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:23,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:23,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:23,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 17:54:23,858 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:23,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1861411368, now seen corresponding path program 118 times [2022-01-18 17:54:23,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:23,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293334379] [2022-01-18 17:54:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:23,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:24,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:24,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293334379] [2022-01-18 17:54:24,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293334379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:24,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:24,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:24,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363217430] [2022-01-18 17:54:24,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:24,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:24,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:24,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:24,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:24,067 INFO L87 Difference]: Start difference. First operand 5645 states and 19453 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:26,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:26,397 INFO L93 Difference]: Finished difference Result 9638 states and 32961 transitions. [2022-01-18 17:54:26,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 17:54:26,397 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:26,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:26,418 INFO L225 Difference]: With dead ends: 9638 [2022-01-18 17:54:26,418 INFO L226 Difference]: Without dead ends: 9575 [2022-01-18 17:54:26,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1931 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=559, Invalid=5921, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 17:54:26,419 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 468 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:26,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2614 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3594 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:54:26,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9575 states. [2022-01-18 17:54:26,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9575 to 5645. [2022-01-18 17:54:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5644 states have (on average 3.4459603118355777) internal successors, (19449), 5644 states have internal predecessors, (19449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 19449 transitions. [2022-01-18 17:54:26,527 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 19449 transitions. Word has length 39 [2022-01-18 17:54:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:26,527 INFO L470 AbstractCegarLoop]: Abstraction has 5645 states and 19449 transitions. [2022-01-18 17:54:26,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 19449 transitions. [2022-01-18 17:54:26,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:26,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:26,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:26,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 17:54:26,536 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:26,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1725732776, now seen corresponding path program 119 times [2022-01-18 17:54:26,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:26,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617510920] [2022-01-18 17:54:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:26,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:26,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:26,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617510920] [2022-01-18 17:54:26,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617510920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:26,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:26,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:26,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838170612] [2022-01-18 17:54:26,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:26,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:26,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:26,743 INFO L87 Difference]: Start difference. First operand 5645 states and 19449 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:30,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:30,840 INFO L93 Difference]: Finished difference Result 12438 states and 41785 transitions. [2022-01-18 17:54:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-01-18 17:54:30,840 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:30,866 INFO L225 Difference]: With dead ends: 12438 [2022-01-18 17:54:30,866 INFO L226 Difference]: Without dead ends: 12242 [2022-01-18 17:54:30,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6246 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1157, Invalid=15873, Unknown=0, NotChecked=0, Total=17030 [2022-01-18 17:54:30,868 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 674 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 4933 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 5104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 4933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:30,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 3542 Invalid, 5104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 4933 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:54:30,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12242 states. [2022-01-18 17:54:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12242 to 5991. [2022-01-18 17:54:30,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5991 states, 5990 states have (on average 3.46661101836394) internal successors, (20765), 5990 states have internal predecessors, (20765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:31,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5991 states to 5991 states and 20765 transitions. [2022-01-18 17:54:31,006 INFO L78 Accepts]: Start accepts. Automaton has 5991 states and 20765 transitions. Word has length 39 [2022-01-18 17:54:31,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:31,006 INFO L470 AbstractCegarLoop]: Abstraction has 5991 states and 20765 transitions. [2022-01-18 17:54:31,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5991 states and 20765 transitions. [2022-01-18 17:54:31,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:31,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:31,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:31,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 17:54:31,016 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:31,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:31,016 INFO L85 PathProgramCache]: Analyzing trace with hash -54865526, now seen corresponding path program 120 times [2022-01-18 17:54:31,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:31,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572157098] [2022-01-18 17:54:31,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:31,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:31,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:31,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:31,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572157098] [2022-01-18 17:54:31,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572157098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:31,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:31,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:31,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155386091] [2022-01-18 17:54:31,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:31,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:31,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:31,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:31,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:31,249 INFO L87 Difference]: Start difference. First operand 5991 states and 20765 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:35,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:35,616 INFO L93 Difference]: Finished difference Result 13160 states and 44326 transitions. [2022-01-18 17:54:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-01-18 17:54:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:35,646 INFO L225 Difference]: With dead ends: 13160 [2022-01-18 17:54:35,646 INFO L226 Difference]: Without dead ends: 12985 [2022-01-18 17:54:35,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6915 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1227, Invalid=17405, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 17:54:35,648 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 687 mSDsluCounter, 4055 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 5439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:35,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 3795 Invalid, 5439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 5257 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 17:54:35,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12985 states. [2022-01-18 17:54:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12985 to 6003. [2022-01-18 17:54:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 3.4680106631122958) internal successors, (20815), 6002 states have internal predecessors, (20815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:35,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 20815 transitions. [2022-01-18 17:54:35,804 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 20815 transitions. Word has length 39 [2022-01-18 17:54:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:35,804 INFO L470 AbstractCegarLoop]: Abstraction has 6003 states and 20815 transitions. [2022-01-18 17:54:35,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:35,804 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 20815 transitions. [2022-01-18 17:54:35,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:35,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:35,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:35,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 17:54:35,814 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:35,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1650750950, now seen corresponding path program 121 times [2022-01-18 17:54:35,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:35,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670203543] [2022-01-18 17:54:35,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:35,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:36,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:36,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:36,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670203543] [2022-01-18 17:54:36,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670203543] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:36,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:36,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:36,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517826861] [2022-01-18 17:54:36,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:36,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:36,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:36,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:36,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:36,022 INFO L87 Difference]: Start difference. First operand 6003 states and 20815 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:38,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:38,411 INFO L93 Difference]: Finished difference Result 10096 states and 34556 transitions. [2022-01-18 17:54:38,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 17:54:38,411 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:38,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:38,432 INFO L225 Difference]: With dead ends: 10096 [2022-01-18 17:54:38,432 INFO L226 Difference]: Without dead ends: 10041 [2022-01-18 17:54:38,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2122 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=595, Invalid=6377, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 17:54:38,434 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 484 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 3738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:38,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2633 Invalid, 3738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:54:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2022-01-18 17:54:38,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 6005. [2022-01-18 17:54:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6005 states, 6004 states have (on average 3.4673550966022653) internal successors, (20818), 6004 states have internal predecessors, (20818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:38,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 20818 transitions. [2022-01-18 17:54:38,548 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 20818 transitions. Word has length 39 [2022-01-18 17:54:38,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:38,548 INFO L470 AbstractCegarLoop]: Abstraction has 6005 states and 20818 transitions. [2022-01-18 17:54:38,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:38,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 20818 transitions. [2022-01-18 17:54:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:38,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:38,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:38,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 17:54:38,558 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:38,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash -478098728, now seen corresponding path program 122 times [2022-01-18 17:54:38,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:38,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213888010] [2022-01-18 17:54:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:38,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:38,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:38,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:38,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213888010] [2022-01-18 17:54:38,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213888010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:38,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:38,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:38,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443663282] [2022-01-18 17:54:38,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:38,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:38,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:38,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:38,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:38,785 INFO L87 Difference]: Start difference. First operand 6005 states and 20818 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:41,593 INFO L93 Difference]: Finished difference Result 11129 states and 38066 transitions. [2022-01-18 17:54:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 17:54:41,593 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:41,618 INFO L225 Difference]: With dead ends: 11129 [2022-01-18 17:54:41,618 INFO L226 Difference]: Without dead ends: 11083 [2022-01-18 17:54:41,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2669 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=654, Invalid=7718, Unknown=0, NotChecked=0, Total=8372 [2022-01-18 17:54:41,619 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 523 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 4207 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 4307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 4207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:41,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 3190 Invalid, 4307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 4207 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:54:41,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11083 states. [2022-01-18 17:54:41,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11083 to 6009. [2022-01-18 17:54:41,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6009 states, 6008 states have (on average 3.4663781624500665) internal successors, (20826), 6008 states have internal predecessors, (20826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6009 states to 6009 states and 20826 transitions. [2022-01-18 17:54:41,750 INFO L78 Accepts]: Start accepts. Automaton has 6009 states and 20826 transitions. Word has length 39 [2022-01-18 17:54:41,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:41,750 INFO L470 AbstractCegarLoop]: Abstraction has 6009 states and 20826 transitions. [2022-01-18 17:54:41,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:41,750 INFO L276 IsEmpty]: Start isEmpty. Operand 6009 states and 20826 transitions. [2022-01-18 17:54:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:41,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:41,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:41,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 17:54:41,760 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash -725564890, now seen corresponding path program 123 times [2022-01-18 17:54:41,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:41,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003283597] [2022-01-18 17:54:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:41,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:41,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:41,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003283597] [2022-01-18 17:54:41,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003283597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:41,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:41,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:41,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268242752] [2022-01-18 17:54:41,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:41,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:41,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:41,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:41,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:41,971 INFO L87 Difference]: Start difference. First operand 6009 states and 20826 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:44,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:44,413 INFO L93 Difference]: Finished difference Result 9952 states and 34247 transitions. [2022-01-18 17:54:44,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 17:54:44,413 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:44,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:44,434 INFO L225 Difference]: With dead ends: 9952 [2022-01-18 17:54:44,434 INFO L226 Difference]: Without dead ends: 9899 [2022-01-18 17:54:44,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2120 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=602, Invalid=6370, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 17:54:44,435 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 505 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 3546 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 3639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:44,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 2649 Invalid, 3639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3546 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:54:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2022-01-18 17:54:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 5999. [2022-01-18 17:54:44,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 5998 states have (on average 3.4689896632210737) internal successors, (20807), 5998 states have internal predecessors, (20807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:44,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 20807 transitions. [2022-01-18 17:54:44,553 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 20807 transitions. Word has length 39 [2022-01-18 17:54:44,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:44,553 INFO L470 AbstractCegarLoop]: Abstraction has 5999 states and 20807 transitions. [2022-01-18 17:54:44,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:44,553 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 20807 transitions. [2022-01-18 17:54:44,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:44,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:44,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:44,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 17:54:44,562 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:44,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:44,563 INFO L85 PathProgramCache]: Analyzing trace with hash 732974406, now seen corresponding path program 124 times [2022-01-18 17:54:44,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:44,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220677157] [2022-01-18 17:54:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:44,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:44,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:44,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220677157] [2022-01-18 17:54:44,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220677157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:44,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:44,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:44,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179865841] [2022-01-18 17:54:44,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:44,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:44,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:44,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:44,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:44,775 INFO L87 Difference]: Start difference. First operand 5999 states and 20807 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:47,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:47,717 INFO L93 Difference]: Finished difference Result 11369 states and 38815 transitions. [2022-01-18 17:54:47,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 17:54:47,718 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:47,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:47,741 INFO L225 Difference]: With dead ends: 11369 [2022-01-18 17:54:47,741 INFO L226 Difference]: Without dead ends: 11302 [2022-01-18 17:54:47,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2586 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=634, Invalid=7556, Unknown=0, NotChecked=0, Total=8190 [2022-01-18 17:54:47,742 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 534 mSDsluCounter, 3798 mSDsCounter, 0 mSdLazyCounter, 4837 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 4928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:47,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 3523 Invalid, 4928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4837 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:54:47,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-01-18 17:54:47,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 6017. [2022-01-18 17:54:47,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 6016 states have (on average 3.465591755319149) internal successors, (20849), 6016 states have internal predecessors, (20849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 20849 transitions. [2022-01-18 17:54:47,862 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 20849 transitions. Word has length 39 [2022-01-18 17:54:47,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:47,863 INFO L470 AbstractCegarLoop]: Abstraction has 6017 states and 20849 transitions. [2022-01-18 17:54:47,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 20849 transitions. [2022-01-18 17:54:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:47,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:47,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:47,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 17:54:47,872 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:47,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:47,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1091044614, now seen corresponding path program 125 times [2022-01-18 17:54:47,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:47,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637049785] [2022-01-18 17:54:47,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:47,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:48,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:48,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:48,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637049785] [2022-01-18 17:54:48,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637049785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:48,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:48,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:48,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137628120] [2022-01-18 17:54:48,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:48,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:48,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:48,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:48,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:48,082 INFO L87 Difference]: Start difference. First operand 6017 states and 20849 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:50,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:50,542 INFO L93 Difference]: Finished difference Result 10113 states and 34632 transitions. [2022-01-18 17:54:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 17:54:50,542 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:50,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:50,576 INFO L225 Difference]: With dead ends: 10113 [2022-01-18 17:54:50,576 INFO L226 Difference]: Without dead ends: 10038 [2022-01-18 17:54:50,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1931 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=546, Invalid=5934, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 17:54:50,576 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 477 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 3765 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:50,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 2676 Invalid, 3843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3765 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:54:50,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10038 states. [2022-01-18 17:54:50,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10038 to 6017. [2022-01-18 17:54:50,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 6016 states have (on average 3.464594414893617) internal successors, (20843), 6016 states have internal predecessors, (20843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 20843 transitions. [2022-01-18 17:54:50,718 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 20843 transitions. Word has length 39 [2022-01-18 17:54:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:50,719 INFO L470 AbstractCegarLoop]: Abstraction has 6017 states and 20843 transitions. [2022-01-18 17:54:50,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 20843 transitions. [2022-01-18 17:54:50,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:50,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:50,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:50,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 17:54:50,729 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:50,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:50,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1575617628, now seen corresponding path program 126 times [2022-01-18 17:54:50,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:50,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572316544] [2022-01-18 17:54:50,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:50,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:50,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:50,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:50,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572316544] [2022-01-18 17:54:50,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572316544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:50,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:50,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:50,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307324399] [2022-01-18 17:54:50,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:50,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:50,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:50,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:50,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:50,940 INFO L87 Difference]: Start difference. First operand 6017 states and 20843 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:55,077 INFO L93 Difference]: Finished difference Result 12421 states and 41792 transitions. [2022-01-18 17:54:55,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-01-18 17:54:55,077 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:55,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:55,110 INFO L225 Difference]: With dead ends: 12421 [2022-01-18 17:54:55,110 INFO L226 Difference]: Without dead ends: 12254 [2022-01-18 17:54:55,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6236 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1144, Invalid=15886, Unknown=0, NotChecked=0, Total=17030 [2022-01-18 17:54:55,112 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 670 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 5191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:55,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 3557 Invalid, 5191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 5026 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 17:54:55,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12254 states. [2022-01-18 17:54:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12254 to 6026. [2022-01-18 17:54:55,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6025 states have (on average 3.4635684647302907) internal successors, (20868), 6025 states have internal predecessors, (20868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:55,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 20868 transitions. [2022-01-18 17:54:55,255 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 20868 transitions. Word has length 39 [2022-01-18 17:54:55,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:54:55,256 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 20868 transitions. [2022-01-18 17:54:55,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:55,256 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 20868 transitions. [2022-01-18 17:54:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:54:55,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:54:55,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:54:55,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 17:54:55,265 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:54:55,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:54:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash 938751366, now seen corresponding path program 127 times [2022-01-18 17:54:55,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:54:55,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3285747] [2022-01-18 17:54:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:54:55,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:54:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:54:55,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:54:55,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:54:55,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3285747] [2022-01-18 17:54:55,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3285747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:54:55,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:54:55,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:54:55,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128404031] [2022-01-18 17:54:55,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:54:55,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:54:55,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:54:55,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:54:55,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:54:55,491 INFO L87 Difference]: Start difference. First operand 6026 states and 20868 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:54:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:54:59,891 INFO L93 Difference]: Finished difference Result 12965 states and 43816 transitions. [2022-01-18 17:54:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-01-18 17:54:59,891 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:54:59,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:54:59,924 INFO L225 Difference]: With dead ends: 12965 [2022-01-18 17:54:59,924 INFO L226 Difference]: Without dead ends: 12831 [2022-01-18 17:54:59,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7028 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1224, Invalid=17682, Unknown=0, NotChecked=0, Total=18906 [2022-01-18 17:54:59,926 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 684 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 5351 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 5529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 5351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:54:59,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 3806 Invalid, 5529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 5351 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 17:54:59,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12831 states. [2022-01-18 17:55:00,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12831 to 5962. [2022-01-18 17:55:00,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5961 states have (on average 3.462170776715316) internal successors, (20638), 5961 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 20638 transitions. [2022-01-18 17:55:00,079 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 20638 transitions. Word has length 39 [2022-01-18 17:55:00,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:00,079 INFO L470 AbstractCegarLoop]: Abstraction has 5962 states and 20638 transitions. [2022-01-18 17:55:00,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:00,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 20638 transitions. [2022-01-18 17:55:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:00,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:00,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:00,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 17:55:00,092 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:00,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:00,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1181930438, now seen corresponding path program 128 times [2022-01-18 17:55:00,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:00,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137381580] [2022-01-18 17:55:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:00,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:00,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:00,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:00,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137381580] [2022-01-18 17:55:00,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137381580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:00,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:00,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:00,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55870355] [2022-01-18 17:55:00,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:00,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:00,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:00,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:00,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:00,317 INFO L87 Difference]: Start difference. First operand 5962 states and 20638 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:02,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:02,764 INFO L93 Difference]: Finished difference Result 10072 states and 34346 transitions. [2022-01-18 17:55:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 17:55:02,765 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:02,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:02,786 INFO L225 Difference]: With dead ends: 10072 [2022-01-18 17:55:02,786 INFO L226 Difference]: Without dead ends: 10009 [2022-01-18 17:55:02,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2123 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=574, Invalid=6398, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 17:55:02,787 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 492 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 3800 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:02,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 2680 Invalid, 3883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3800 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:55:02,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2022-01-18 17:55:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 5965. [2022-01-18 17:55:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5965 states, 5964 states have (on average 3.461267605633803) internal successors, (20643), 5964 states have internal predecessors, (20643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 20643 transitions. [2022-01-18 17:55:02,906 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 20643 transitions. Word has length 39 [2022-01-18 17:55:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:02,906 INFO L470 AbstractCegarLoop]: Abstraction has 5965 states and 20643 transitions. [2022-01-18 17:55:02,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:02,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 20643 transitions. [2022-01-18 17:55:02,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:02,915 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:02,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:02,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 17:55:02,916 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:02,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:02,916 INFO L85 PathProgramCache]: Analyzing trace with hash -745711320, now seen corresponding path program 129 times [2022-01-18 17:55:02,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:02,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52674853] [2022-01-18 17:55:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:02,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:03,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:03,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52674853] [2022-01-18 17:55:03,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52674853] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:03,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:03,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:03,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800777311] [2022-01-18 17:55:03,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:03,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:03,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:03,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:03,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:03,124 INFO L87 Difference]: Start difference. First operand 5965 states and 20643 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:05,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:05,956 INFO L93 Difference]: Finished difference Result 11071 states and 37791 transitions. [2022-01-18 17:55:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 17:55:05,956 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:05,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:05,978 INFO L225 Difference]: With dead ends: 11071 [2022-01-18 17:55:05,979 INFO L226 Difference]: Without dead ends: 11025 [2022-01-18 17:55:05,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2671 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=629, Invalid=7743, Unknown=0, NotChecked=0, Total=8372 [2022-01-18 17:55:05,979 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 520 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 4368 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 4461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 4368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:05,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 3191 Invalid, 4461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 4368 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:55:05,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2022-01-18 17:55:06,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 5972. [2022-01-18 17:55:06,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5972 states, 5971 states have (on average 3.4597219896164795) internal successors, (20658), 5971 states have internal predecessors, (20658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 20658 transitions. [2022-01-18 17:55:06,093 INFO L78 Accepts]: Start accepts. Automaton has 5972 states and 20658 transitions. Word has length 39 [2022-01-18 17:55:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:06,093 INFO L470 AbstractCegarLoop]: Abstraction has 5972 states and 20658 transitions. [2022-01-18 17:55:06,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5972 states and 20658 transitions. [2022-01-18 17:55:06,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:06,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:06,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:06,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 17:55:06,103 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:06,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:06,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2114188486, now seen corresponding path program 130 times [2022-01-18 17:55:06,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:06,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513571901] [2022-01-18 17:55:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:06,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:06,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:06,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513571901] [2022-01-18 17:55:06,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513571901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:06,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:06,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:06,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912692626] [2022-01-18 17:55:06,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:06,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:06,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:06,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:06,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:06,311 INFO L87 Difference]: Start difference. First operand 5972 states and 20658 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:08,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:08,783 INFO L93 Difference]: Finished difference Result 9716 states and 33428 transitions. [2022-01-18 17:55:08,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-18 17:55:08,783 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:08,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:08,804 INFO L225 Difference]: With dead ends: 9716 [2022-01-18 17:55:08,804 INFO L226 Difference]: Without dead ends: 9649 [2022-01-18 17:55:08,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1989 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=553, Invalid=6089, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 17:55:08,805 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 481 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:08,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 2750 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3797 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:55:08,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-01-18 17:55:08,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5956. [2022-01-18 17:55:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5955 states have (on average 3.4636439966414776) internal successors, (20626), 5955 states have internal predecessors, (20626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:08,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 20626 transitions. [2022-01-18 17:55:08,943 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 20626 transitions. Word has length 39 [2022-01-18 17:55:08,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:08,944 INFO L470 AbstractCegarLoop]: Abstraction has 5956 states and 20626 transitions. [2022-01-18 17:55:08,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 20626 transitions. [2022-01-18 17:55:08,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:08,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:08,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:08,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 17:55:08,953 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:08,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:08,954 INFO L85 PathProgramCache]: Analyzing trace with hash -172981656, now seen corresponding path program 131 times [2022-01-18 17:55:08,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:08,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802603180] [2022-01-18 17:55:08,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:08,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:09,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:09,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:09,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802603180] [2022-01-18 17:55:09,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802603180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:09,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:09,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:09,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854917437] [2022-01-18 17:55:09,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:09,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:09,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:09,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:09,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:09,160 INFO L87 Difference]: Start difference. First operand 5956 states and 20626 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:11,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:11,668 INFO L93 Difference]: Finished difference Result 10007 states and 34455 transitions. [2022-01-18 17:55:11,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 17:55:11,668 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:11,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:11,690 INFO L225 Difference]: With dead ends: 10007 [2022-01-18 17:55:11,690 INFO L226 Difference]: Without dead ends: 9944 [2022-01-18 17:55:11,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=536, Invalid=6106, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 17:55:11,691 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 489 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 4107 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:11,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 3100 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4107 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:55:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9944 states. [2022-01-18 17:55:11,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9944 to 5948. [2022-01-18 17:55:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5948 states, 5947 states have (on average 3.4649403060366573) internal successors, (20606), 5947 states have internal predecessors, (20606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:11,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5948 states to 5948 states and 20606 transitions. [2022-01-18 17:55:11,805 INFO L78 Accepts]: Start accepts. Automaton has 5948 states and 20606 transitions. Word has length 39 [2022-01-18 17:55:11,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:11,805 INFO L470 AbstractCegarLoop]: Abstraction has 5948 states and 20606 transitions. [2022-01-18 17:55:11,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:11,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5948 states and 20606 transitions. [2022-01-18 17:55:11,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:11,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:11,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:11,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 17:55:11,815 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:11,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:11,815 INFO L85 PathProgramCache]: Analyzing trace with hash -418473754, now seen corresponding path program 132 times [2022-01-18 17:55:11,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:11,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231094498] [2022-01-18 17:55:11,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:11,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:12,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:12,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231094498] [2022-01-18 17:55:12,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231094498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:12,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:12,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:12,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274797131] [2022-01-18 17:55:12,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:12,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:12,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:12,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:12,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:12,029 INFO L87 Difference]: Start difference. First operand 5948 states and 20606 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:14,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:14,563 INFO L93 Difference]: Finished difference Result 10092 states and 34665 transitions. [2022-01-18 17:55:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 17:55:14,563 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:14,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:14,589 INFO L225 Difference]: With dead ends: 10092 [2022-01-18 17:55:14,589 INFO L226 Difference]: Without dead ends: 10017 [2022-01-18 17:55:14,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=536, Invalid=6106, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 17:55:14,590 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 498 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 4167 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:14,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 3125 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4167 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:55:14,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10017 states. [2022-01-18 17:55:14,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10017 to 5936. [2022-01-18 17:55:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 5935 states have (on average 3.4668913226621734) internal successors, (20576), 5935 states have internal predecessors, (20576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 20576 transitions. [2022-01-18 17:55:14,713 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 20576 transitions. Word has length 39 [2022-01-18 17:55:14,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:14,713 INFO L470 AbstractCegarLoop]: Abstraction has 5936 states and 20576 transitions. [2022-01-18 17:55:14,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 20576 transitions. [2022-01-18 17:55:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:14,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:14,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:14,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 17:55:14,722 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:14,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:14,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1602178392, now seen corresponding path program 133 times [2022-01-18 17:55:14,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:14,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492618958] [2022-01-18 17:55:14,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:14,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:14,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:14,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:14,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492618958] [2022-01-18 17:55:14,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492618958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:14,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:14,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:14,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738710064] [2022-01-18 17:55:14,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:14,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:14,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:14,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:14,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:14,933 INFO L87 Difference]: Start difference. First operand 5936 states and 20576 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:17,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:17,605 INFO L93 Difference]: Finished difference Result 10741 states and 36799 transitions. [2022-01-18 17:55:17,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 17:55:17,605 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:17,630 INFO L225 Difference]: With dead ends: 10741 [2022-01-18 17:55:17,630 INFO L226 Difference]: Without dead ends: 10686 [2022-01-18 17:55:17,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=563, Invalid=6577, Unknown=0, NotChecked=0, Total=7140 [2022-01-18 17:55:17,631 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 532 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 4581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:17,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 3448 Invalid, 4581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:55:17,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2022-01-18 17:55:17,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 5938. [2022-01-18 17:55:17,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5938 states, 5937 states have (on average 3.466565605524676) internal successors, (20581), 5937 states have internal predecessors, (20581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 20581 transitions. [2022-01-18 17:55:17,767 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 20581 transitions. Word has length 39 [2022-01-18 17:55:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:17,767 INFO L470 AbstractCegarLoop]: Abstraction has 5938 states and 20581 transitions. [2022-01-18 17:55:17,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 20581 transitions. [2022-01-18 17:55:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:17,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:17,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:17,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 17:55:17,777 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:17,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:17,777 INFO L85 PathProgramCache]: Analyzing trace with hash -265120378, now seen corresponding path program 134 times [2022-01-18 17:55:17,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:17,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545660595] [2022-01-18 17:55:17,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:17,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:17,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:17,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545660595] [2022-01-18 17:55:17,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545660595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:17,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:17,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:17,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927781203] [2022-01-18 17:55:17,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:17,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:17,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:17,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:17,990 INFO L87 Difference]: Start difference. First operand 5938 states and 20581 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:20,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:20,679 INFO L93 Difference]: Finished difference Result 10729 states and 36761 transitions. [2022-01-18 17:55:20,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 17:55:20,679 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:20,702 INFO L225 Difference]: With dead ends: 10729 [2022-01-18 17:55:20,702 INFO L226 Difference]: Without dead ends: 10656 [2022-01-18 17:55:20,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=563, Invalid=6577, Unknown=0, NotChecked=0, Total=7140 [2022-01-18 17:55:20,703 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 523 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 3486 SdHoareTripleChecker+Invalid, 4581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:20,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 3486 Invalid, 4581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:55:20,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10656 states. [2022-01-18 17:55:20,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10656 to 5932. [2022-01-18 17:55:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5932 states, 5931 states have (on average 3.4678806272129488) internal successors, (20568), 5931 states have internal predecessors, (20568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5932 states to 5932 states and 20568 transitions. [2022-01-18 17:55:20,821 INFO L78 Accepts]: Start accepts. Automaton has 5932 states and 20568 transitions. Word has length 39 [2022-01-18 17:55:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:20,822 INFO L470 AbstractCegarLoop]: Abstraction has 5932 states and 20568 transitions. [2022-01-18 17:55:20,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5932 states and 20568 transitions. [2022-01-18 17:55:20,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:20,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:20,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:20,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 17:55:20,831 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:20,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash -634695142, now seen corresponding path program 135 times [2022-01-18 17:55:20,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:20,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160844210] [2022-01-18 17:55:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:20,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:21,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:21,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:21,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160844210] [2022-01-18 17:55:21,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160844210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:21,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:21,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:21,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473859269] [2022-01-18 17:55:21,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:21,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:21,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:21,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:21,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:21,086 INFO L87 Difference]: Start difference. First operand 5932 states and 20568 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:24,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:24,500 INFO L93 Difference]: Finished difference Result 12644 states and 42987 transitions. [2022-01-18 17:55:24,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-01-18 17:55:24,500 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:24,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:24,528 INFO L225 Difference]: With dead ends: 12644 [2022-01-18 17:55:24,528 INFO L226 Difference]: Without dead ends: 12526 [2022-01-18 17:55:24,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4303 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=884, Invalid=11548, Unknown=0, NotChecked=0, Total=12432 [2022-01-18 17:55:24,529 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 629 mSDsluCounter, 3594 mSDsCounter, 0 mSdLazyCounter, 4653 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 4821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 4653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:24,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 3342 Invalid, 4821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 4653 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:55:24,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12526 states. [2022-01-18 17:55:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12526 to 6322. [2022-01-18 17:55:24,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6322 states, 6321 states have (on average 3.479829140958709) internal successors, (21996), 6321 states have internal predecessors, (21996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:24,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6322 states to 6322 states and 21996 transitions. [2022-01-18 17:55:24,675 INFO L78 Accepts]: Start accepts. Automaton has 6322 states and 21996 transitions. Word has length 39 [2022-01-18 17:55:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:24,675 INFO L470 AbstractCegarLoop]: Abstraction has 6322 states and 21996 transitions. [2022-01-18 17:55:24,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6322 states and 21996 transitions. [2022-01-18 17:55:24,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:24,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:24,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:24,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 17:55:24,687 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:24,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:24,687 INFO L85 PathProgramCache]: Analyzing trace with hash 537957080, now seen corresponding path program 136 times [2022-01-18 17:55:24,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:24,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120944139] [2022-01-18 17:55:24,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:24,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:24,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:24,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:24,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120944139] [2022-01-18 17:55:24,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120944139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:24,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:24,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:24,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610108889] [2022-01-18 17:55:24,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:24,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:24,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:24,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:24,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:24,901 INFO L87 Difference]: Start difference. First operand 6322 states and 21996 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:28,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:28,515 INFO L93 Difference]: Finished difference Result 13538 states and 45942 transitions. [2022-01-18 17:55:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-01-18 17:55:28,515 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:28,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:28,546 INFO L225 Difference]: With dead ends: 13538 [2022-01-18 17:55:28,546 INFO L226 Difference]: Without dead ends: 13420 [2022-01-18 17:55:28,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4487 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=915, Invalid=11967, Unknown=0, NotChecked=0, Total=12882 [2022-01-18 17:55:28,547 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 649 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 4904 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 5075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 4904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:28,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 3615 Invalid, 5075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 4904 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:55:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13420 states. [2022-01-18 17:55:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13420 to 6375. [2022-01-18 17:55:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6375 states, 6374 states have (on average 3.479290869155946) internal successors, (22177), 6374 states have internal predecessors, (22177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6375 states to 6375 states and 22177 transitions. [2022-01-18 17:55:28,688 INFO L78 Accepts]: Start accepts. Automaton has 6375 states and 22177 transitions. Word has length 39 [2022-01-18 17:55:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:28,688 INFO L470 AbstractCegarLoop]: Abstraction has 6375 states and 22177 transitions. [2022-01-18 17:55:28,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:28,688 INFO L276 IsEmpty]: Start isEmpty. Operand 6375 states and 22177 transitions. [2022-01-18 17:55:28,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:28,698 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:28,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:28,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 17:55:28,698 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:28,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:28,698 INFO L85 PathProgramCache]: Analyzing trace with hash 470212200, now seen corresponding path program 137 times [2022-01-18 17:55:28,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:28,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670935476] [2022-01-18 17:55:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:28,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:28,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:28,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:28,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670935476] [2022-01-18 17:55:28,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670935476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:28,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:28,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:28,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273318889] [2022-01-18 17:55:28,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:28,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:28,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:28,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:28,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:28,905 INFO L87 Difference]: Start difference. First operand 6375 states and 22177 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:32,298 INFO L93 Difference]: Finished difference Result 12677 states and 43055 transitions. [2022-01-18 17:55:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-01-18 17:55:32,298 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:32,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:32,326 INFO L225 Difference]: With dead ends: 12677 [2022-01-18 17:55:32,326 INFO L226 Difference]: Without dead ends: 12612 [2022-01-18 17:55:32,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4304 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=873, Invalid=11559, Unknown=0, NotChecked=0, Total=12432 [2022-01-18 17:55:32,327 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 630 mSDsluCounter, 3658 mSDsCounter, 0 mSdLazyCounter, 4671 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 4833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 4671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:32,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 3367 Invalid, 4833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 4671 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:55:32,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12612 states. [2022-01-18 17:55:32,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12612 to 6376. [2022-01-18 17:55:32,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6376 states, 6375 states have (on average 3.478901960784314) internal successors, (22178), 6375 states have internal predecessors, (22178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 22178 transitions. [2022-01-18 17:55:32,468 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 22178 transitions. Word has length 39 [2022-01-18 17:55:32,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:32,468 INFO L470 AbstractCegarLoop]: Abstraction has 6376 states and 22178 transitions. [2022-01-18 17:55:32,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:32,468 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 22178 transitions. [2022-01-18 17:55:32,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:32,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:32,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:32,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 17:55:32,479 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:32,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:32,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1457429558, now seen corresponding path program 138 times [2022-01-18 17:55:32,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:32,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922910036] [2022-01-18 17:55:32,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:32,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:32,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:32,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922910036] [2022-01-18 17:55:32,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922910036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:32,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:32,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:32,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173232491] [2022-01-18 17:55:32,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:32,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:32,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:32,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:32,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:32,689 INFO L87 Difference]: Start difference. First operand 6376 states and 22178 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:36,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:36,261 INFO L93 Difference]: Finished difference Result 13586 states and 46079 transitions. [2022-01-18 17:55:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-01-18 17:55:36,261 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:36,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:36,292 INFO L225 Difference]: With dead ends: 13586 [2022-01-18 17:55:36,292 INFO L226 Difference]: Without dead ends: 13436 [2022-01-18 17:55:36,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4393 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=894, Invalid=11762, Unknown=0, NotChecked=0, Total=12656 [2022-01-18 17:55:36,293 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 638 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 4973 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 5136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 4973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:36,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [638 Valid, 3630 Invalid, 5136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 4973 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:55:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13436 states. [2022-01-18 17:55:36,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13436 to 6336. [2022-01-18 17:55:36,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6336 states, 6335 states have (on average 3.4820836621941593) internal successors, (22059), 6335 states have internal predecessors, (22059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:36,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6336 states to 6336 states and 22059 transitions. [2022-01-18 17:55:36,446 INFO L78 Accepts]: Start accepts. Automaton has 6336 states and 22059 transitions. Word has length 39 [2022-01-18 17:55:36,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:36,446 INFO L470 AbstractCegarLoop]: Abstraction has 6336 states and 22059 transitions. [2022-01-18 17:55:36,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:36,446 INFO L276 IsEmpty]: Start isEmpty. Operand 6336 states and 22059 transitions. [2022-01-18 17:55:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:36,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:36,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:36,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 17:55:36,457 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:36,457 INFO L85 PathProgramCache]: Analyzing trace with hash 609384356, now seen corresponding path program 139 times [2022-01-18 17:55:36,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:36,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294077381] [2022-01-18 17:55:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:36,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:36,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:36,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:36,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294077381] [2022-01-18 17:55:36,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294077381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:36,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:36,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:36,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394006589] [2022-01-18 17:55:36,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:36,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:36,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:36,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:36,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:36,668 INFO L87 Difference]: Start difference. First operand 6336 states and 22059 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:40,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:40,894 INFO L93 Difference]: Finished difference Result 13288 states and 44858 transitions. [2022-01-18 17:55:40,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-01-18 17:55:40,895 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:40,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:40,924 INFO L225 Difference]: With dead ends: 13288 [2022-01-18 17:55:40,925 INFO L226 Difference]: Without dead ends: 13083 [2022-01-18 17:55:40,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5809 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1074, Invalid=14928, Unknown=0, NotChecked=0, Total=16002 [2022-01-18 17:55:40,926 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 675 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 5622 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 3934 SdHoareTripleChecker+Invalid, 5794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 5622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:40,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 3934 Invalid, 5794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 5622 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 17:55:40,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13083 states. [2022-01-18 17:55:41,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13083 to 6470. [2022-01-18 17:55:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6470 states, 6469 states have (on average 3.488019786674911) internal successors, (22564), 6469 states have internal predecessors, (22564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6470 states to 6470 states and 22564 transitions. [2022-01-18 17:55:41,075 INFO L78 Accepts]: Start accepts. Automaton has 6470 states and 22564 transitions. Word has length 39 [2022-01-18 17:55:41,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:41,075 INFO L470 AbstractCegarLoop]: Abstraction has 6470 states and 22564 transitions. [2022-01-18 17:55:41,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:41,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6470 states and 22564 transitions. [2022-01-18 17:55:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:41,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:41,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:41,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 17:55:41,086 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:41,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:41,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1527867926, now seen corresponding path program 140 times [2022-01-18 17:55:41,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:41,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442634109] [2022-01-18 17:55:41,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:41,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:41,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:41,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442634109] [2022-01-18 17:55:41,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442634109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:41,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:41,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:41,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781833474] [2022-01-18 17:55:41,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:41,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:41,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:41,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:41,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:41,300 INFO L87 Difference]: Start difference. First operand 6470 states and 22564 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:43,968 INFO L93 Difference]: Finished difference Result 11615 states and 39719 transitions. [2022-01-18 17:55:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 17:55:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:43,993 INFO L225 Difference]: With dead ends: 11615 [2022-01-18 17:55:43,993 INFO L226 Difference]: Without dead ends: 11572 [2022-01-18 17:55:43,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2131 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=534, Invalid=6438, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 17:55:43,994 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 564 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 4534 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 4642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 4534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:43,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [564 Valid, 3225 Invalid, 4642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 4534 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:55:44,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2022-01-18 17:55:44,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 6482. [2022-01-18 17:55:44,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6482 states, 6481 states have (on average 3.486344699891992) internal successors, (22595), 6481 states have internal predecessors, (22595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6482 states to 6482 states and 22595 transitions. [2022-01-18 17:55:44,126 INFO L78 Accepts]: Start accepts. Automaton has 6482 states and 22595 transitions. Word has length 39 [2022-01-18 17:55:44,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:44,127 INFO L470 AbstractCegarLoop]: Abstraction has 6482 states and 22595 transitions. [2022-01-18 17:55:44,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:44,127 INFO L276 IsEmpty]: Start isEmpty. Operand 6482 states and 22595 transitions. [2022-01-18 17:55:44,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:44,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:44,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:44,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 17:55:44,137 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:44,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:44,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1548016660, now seen corresponding path program 141 times [2022-01-18 17:55:44,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:44,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939578811] [2022-01-18 17:55:44,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:44,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:44,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:44,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:44,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939578811] [2022-01-18 17:55:44,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939578811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:44,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:44,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:44,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891052285] [2022-01-18 17:55:44,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:44,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:44,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:44,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:44,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:44,343 INFO L87 Difference]: Start difference. First operand 6482 states and 22595 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:46,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:46,780 INFO L93 Difference]: Finished difference Result 10838 states and 37200 transitions. [2022-01-18 17:55:46,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-18 17:55:46,780 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:46,804 INFO L225 Difference]: With dead ends: 10838 [2022-01-18 17:55:46,804 INFO L226 Difference]: Without dead ends: 10795 [2022-01-18 17:55:46,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1815 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=490, Invalid=5672, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 17:55:46,805 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 551 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 3995 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:46,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 2825 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3995 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 17:55:46,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-01-18 17:55:46,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 6478. [2022-01-18 17:55:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6478 states, 6477 states have (on average 3.4869538366527713) internal successors, (22585), 6477 states have internal predecessors, (22585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6478 states to 6478 states and 22585 transitions. [2022-01-18 17:55:46,938 INFO L78 Accepts]: Start accepts. Automaton has 6478 states and 22585 transitions. Word has length 39 [2022-01-18 17:55:46,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:46,938 INFO L470 AbstractCegarLoop]: Abstraction has 6478 states and 22585 transitions. [2022-01-18 17:55:46,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:46,938 INFO L276 IsEmpty]: Start isEmpty. Operand 6478 states and 22585 transitions. [2022-01-18 17:55:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:46,949 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:46,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:46,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 17:55:46,949 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:46,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:46,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1594447148, now seen corresponding path program 142 times [2022-01-18 17:55:46,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:46,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119733523] [2022-01-18 17:55:46,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:46,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:47,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:47,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119733523] [2022-01-18 17:55:47,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119733523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:47,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:47,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:47,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615304389] [2022-01-18 17:55:47,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:47,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:47,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:47,165 INFO L87 Difference]: Start difference. First operand 6478 states and 22585 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:50,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:50,358 INFO L93 Difference]: Finished difference Result 12609 states and 42778 transitions. [2022-01-18 17:55:50,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-01-18 17:55:50,359 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:50,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:50,386 INFO L225 Difference]: With dead ends: 12609 [2022-01-18 17:55:50,387 INFO L226 Difference]: Without dead ends: 12428 [2022-01-18 17:55:50,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2957 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=692, Invalid=8428, Unknown=0, NotChecked=0, Total=9120 [2022-01-18 17:55:50,387 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 582 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 4879 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 5011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 4879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:50,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 3544 Invalid, 5011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 4879 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:55:50,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12428 states. [2022-01-18 17:55:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12428 to 6615. [2022-01-18 17:55:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 6614 states have (on average 3.487753250680375) internal successors, (23068), 6614 states have internal predecessors, (23068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 23068 transitions. [2022-01-18 17:55:50,528 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 23068 transitions. Word has length 39 [2022-01-18 17:55:50,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:50,528 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 23068 transitions. [2022-01-18 17:55:50,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 23068 transitions. [2022-01-18 17:55:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:50,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:50,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:50,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 17:55:50,539 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:50,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash 620953606, now seen corresponding path program 143 times [2022-01-18 17:55:50,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:50,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965891883] [2022-01-18 17:55:50,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:50,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:50,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:50,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965891883] [2022-01-18 17:55:50,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965891883] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:50,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:50,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:55:50,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709568423] [2022-01-18 17:55:50,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:50,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:55:50,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:50,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:55:50,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:55:50,737 INFO L87 Difference]: Start difference. First operand 6615 states and 23068 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:53,477 INFO L93 Difference]: Finished difference Result 12388 states and 42188 transitions. [2022-01-18 17:55:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 17:55:53,478 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:53,504 INFO L225 Difference]: With dead ends: 12388 [2022-01-18 17:55:53,504 INFO L226 Difference]: Without dead ends: 12312 [2022-01-18 17:55:53,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2388 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=593, Invalid=6889, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 17:55:53,505 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 542 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 4358 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 4467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:53,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 3114 Invalid, 4467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4358 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:55:53,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12312 states. [2022-01-18 17:55:53,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12312 to 6623. [2022-01-18 17:55:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 6622 states have (on average 3.485955904560556) internal successors, (23084), 6622 states have internal predecessors, (23084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:53,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 23084 transitions. [2022-01-18 17:55:53,635 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 23084 transitions. Word has length 39 [2022-01-18 17:55:53,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:53,635 INFO L470 AbstractCegarLoop]: Abstraction has 6623 states and 23084 transitions. [2022-01-18 17:55:53,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:53,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 23084 transitions. [2022-01-18 17:55:53,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:53,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:53,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:53,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 17:55:53,645 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:53,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:53,646 INFO L85 PathProgramCache]: Analyzing trace with hash -397100006, now seen corresponding path program 144 times [2022-01-18 17:55:53,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:53,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473388253] [2022-01-18 17:55:53,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:53,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:53,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:53,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473388253] [2022-01-18 17:55:53,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473388253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:53,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:53,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:53,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400653189] [2022-01-18 17:55:53,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:53,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:53,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:53,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:53,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:53,850 INFO L87 Difference]: Start difference. First operand 6623 states and 23084 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:55:56,958 INFO L93 Difference]: Finished difference Result 12474 states and 42434 transitions. [2022-01-18 17:55:56,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-01-18 17:55:56,959 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:55:56,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:55:56,989 INFO L225 Difference]: With dead ends: 12474 [2022-01-18 17:55:56,989 INFO L226 Difference]: Without dead ends: 12404 [2022-01-18 17:55:56,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2812 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=667, Invalid=8075, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 17:55:56,990 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 568 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 4801 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 4931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 4801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:55:56,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [568 Valid, 3484 Invalid, 4931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 4801 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:55:57,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12404 states. [2022-01-18 17:55:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12404 to 6611. [2022-01-18 17:55:57,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 6610 states have (on average 3.4877458396369136) internal successors, (23054), 6610 states have internal predecessors, (23054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:57,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 23054 transitions. [2022-01-18 17:55:57,143 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 23054 transitions. Word has length 39 [2022-01-18 17:55:57,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:55:57,143 INFO L470 AbstractCegarLoop]: Abstraction has 6611 states and 23054 transitions. [2022-01-18 17:55:57,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:55:57,143 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 23054 transitions. [2022-01-18 17:55:57,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:55:57,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:55:57,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:55:57,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 17:55:57,155 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:55:57,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:55:57,155 INFO L85 PathProgramCache]: Analyzing trace with hash 79287864, now seen corresponding path program 145 times [2022-01-18 17:55:57,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:55:57,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139401616] [2022-01-18 17:55:57,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:55:57,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:55:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:55:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:55:57,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:55:57,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139401616] [2022-01-18 17:55:57,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139401616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:55:57,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:55:57,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:55:57,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846639988] [2022-01-18 17:55:57,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:55:57,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:55:57,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:55:57,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:55:57,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:55:57,367 INFO L87 Difference]: Start difference. First operand 6611 states and 23054 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:01,611 INFO L93 Difference]: Finished difference Result 13395 states and 45264 transitions. [2022-01-18 17:56:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-01-18 17:56:01,611 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:01,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:01,642 INFO L225 Difference]: With dead ends: 13395 [2022-01-18 17:56:01,643 INFO L226 Difference]: Without dead ends: 13235 [2022-01-18 17:56:01,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5698 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1045, Invalid=14705, Unknown=0, NotChecked=0, Total=15750 [2022-01-18 17:56:01,644 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 683 mSDsluCounter, 4228 mSDsCounter, 0 mSdLazyCounter, 5679 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 5849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 5679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:01,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 3979 Invalid, 5849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 5679 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 17:56:01,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13235 states. [2022-01-18 17:56:01,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13235 to 6612. [2022-01-18 17:56:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6612 states, 6611 states have (on average 3.4881258508546362) internal successors, (23060), 6611 states have internal predecessors, (23060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:01,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6612 states to 6612 states and 23060 transitions. [2022-01-18 17:56:01,802 INFO L78 Accepts]: Start accepts. Automaton has 6612 states and 23060 transitions. Word has length 39 [2022-01-18 17:56:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:01,803 INFO L470 AbstractCegarLoop]: Abstraction has 6612 states and 23060 transitions. [2022-01-18 17:56:01,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:01,803 INFO L276 IsEmpty]: Start isEmpty. Operand 6612 states and 23060 transitions. [2022-01-18 17:56:01,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:01,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:01,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:01,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 17:56:01,815 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1458131366, now seen corresponding path program 146 times [2022-01-18 17:56:01,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:01,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215907455] [2022-01-18 17:56:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:01,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:02,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:02,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215907455] [2022-01-18 17:56:02,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215907455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:02,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:02,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:02,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128117041] [2022-01-18 17:56:02,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:02,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:02,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:02,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:02,041 INFO L87 Difference]: Start difference. First operand 6612 states and 23060 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:04,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:04,672 INFO L93 Difference]: Finished difference Result 11771 states and 40218 transitions. [2022-01-18 17:56:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 17:56:04,673 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:04,696 INFO L225 Difference]: With dead ends: 11771 [2022-01-18 17:56:04,696 INFO L226 Difference]: Without dead ends: 11728 [2022-01-18 17:56:04,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=518, Invalid=6454, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 17:56:04,697 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 560 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 4596 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:04,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 3280 Invalid, 4697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4596 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 17:56:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11728 states. [2022-01-18 17:56:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11728 to 6627. [2022-01-18 17:56:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6627 states, 6626 states have (on average 3.4858134621189256) internal successors, (23097), 6626 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:04,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6627 states to 6627 states and 23097 transitions. [2022-01-18 17:56:04,819 INFO L78 Accepts]: Start accepts. Automaton has 6627 states and 23097 transitions. Word has length 39 [2022-01-18 17:56:04,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:04,820 INFO L470 AbstractCegarLoop]: Abstraction has 6627 states and 23097 transitions. [2022-01-18 17:56:04,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:04,820 INFO L276 IsEmpty]: Start isEmpty. Operand 6627 states and 23097 transitions. [2022-01-18 17:56:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:04,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:04,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:04,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 17:56:04,830 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:04,830 INFO L85 PathProgramCache]: Analyzing trace with hash 291975770, now seen corresponding path program 147 times [2022-01-18 17:56:04,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:04,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236114470] [2022-01-18 17:56:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:04,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:05,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:05,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236114470] [2022-01-18 17:56:05,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236114470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:05,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:05,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:05,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932835325] [2022-01-18 17:56:05,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:05,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:05,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:05,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:05,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:05,035 INFO L87 Difference]: Start difference. First operand 6627 states and 23097 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:07,428 INFO L93 Difference]: Finished difference Result 10795 states and 37107 transitions. [2022-01-18 17:56:07,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-18 17:56:07,429 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:07,449 INFO L225 Difference]: With dead ends: 10795 [2022-01-18 17:56:07,449 INFO L226 Difference]: Without dead ends: 10683 [2022-01-18 17:56:07,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1756 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=464, Invalid=5542, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 17:56:07,450 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 529 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 4097 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:07,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 2948 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4097 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:56:07,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-01-18 17:56:07,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 6624. [2022-01-18 17:56:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6624 states, 6623 states have (on average 3.486637475464291) internal successors, (23092), 6623 states have internal predecessors, (23092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:07,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 23092 transitions. [2022-01-18 17:56:07,553 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 23092 transitions. Word has length 39 [2022-01-18 17:56:07,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:07,553 INFO L470 AbstractCegarLoop]: Abstraction has 6624 states and 23092 transitions. [2022-01-18 17:56:07,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:07,553 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 23092 transitions. [2022-01-18 17:56:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:07,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:07,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:07,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 17:56:07,563 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash 909194172, now seen corresponding path program 148 times [2022-01-18 17:56:07,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:07,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660760776] [2022-01-18 17:56:07,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:07,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:07,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:07,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:07,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660760776] [2022-01-18 17:56:07,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660760776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:07,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:07,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:07,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656224557] [2022-01-18 17:56:07,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:07,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:07,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:07,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:07,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:07,765 INFO L87 Difference]: Start difference. First operand 6624 states and 23092 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:10,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:10,827 INFO L93 Difference]: Finished difference Result 12608 states and 42790 transitions. [2022-01-18 17:56:10,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-18 17:56:10,828 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:10,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:10,886 INFO L225 Difference]: With dead ends: 12608 [2022-01-18 17:56:10,886 INFO L226 Difference]: Without dead ends: 12451 [2022-01-18 17:56:10,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3039 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=680, Invalid=8632, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 17:56:10,886 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 591 mSDsluCounter, 3908 mSDsCounter, 0 mSdLazyCounter, 5034 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 5155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 5034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:10,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 3602 Invalid, 5155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 5034 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:56:10,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12451 states. [2022-01-18 17:56:10,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12451 to 6521. [2022-01-18 17:56:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6520 states have (on average 3.488036809815951) internal successors, (22742), 6520 states have internal predecessors, (22742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 22742 transitions. [2022-01-18 17:56:11,007 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 22742 transitions. Word has length 39 [2022-01-18 17:56:11,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:11,007 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 22742 transitions. [2022-01-18 17:56:11,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 22742 transitions. [2022-01-18 17:56:11,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:11,016 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:11,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:11,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 17:56:11,017 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1106490028, now seen corresponding path program 149 times [2022-01-18 17:56:11,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:11,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268861404] [2022-01-18 17:56:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:11,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:11,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:11,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268861404] [2022-01-18 17:56:11,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268861404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:11,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:11,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:56:11,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296765311] [2022-01-18 17:56:11,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:11,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:56:11,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:56:11,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:56:11,211 INFO L87 Difference]: Start difference. First operand 6521 states and 22742 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:13,872 INFO L93 Difference]: Finished difference Result 12209 states and 41733 transitions. [2022-01-18 17:56:13,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 17:56:13,872 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:13,897 INFO L225 Difference]: With dead ends: 12209 [2022-01-18 17:56:13,897 INFO L226 Difference]: Without dead ends: 12133 [2022-01-18 17:56:13,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2388 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=590, Invalid=6892, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 17:56:13,898 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 538 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 4381 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 4485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 4381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:13,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 3130 Invalid, 4485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 4381 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 17:56:13,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12133 states. [2022-01-18 17:56:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12133 to 6535. [2022-01-18 17:56:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6535 states, 6534 states have (on average 3.485154576063667) internal successors, (22772), 6534 states have internal predecessors, (22772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:14,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6535 states to 6535 states and 22772 transitions. [2022-01-18 17:56:14,046 INFO L78 Accepts]: Start accepts. Automaton has 6535 states and 22772 transitions. Word has length 39 [2022-01-18 17:56:14,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:14,046 INFO L470 AbstractCegarLoop]: Abstraction has 6535 states and 22772 transitions. [2022-01-18 17:56:14,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:14,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6535 states and 22772 transitions. [2022-01-18 17:56:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:14,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:14,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:14,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 17:56:14,056 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:14,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:14,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1640554934, now seen corresponding path program 150 times [2022-01-18 17:56:14,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:14,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141615392] [2022-01-18 17:56:14,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:14,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:14,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:14,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141615392] [2022-01-18 17:56:14,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141615392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:14,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:14,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:14,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641678712] [2022-01-18 17:56:14,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:14,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:14,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:14,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:14,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:14,258 INFO L87 Difference]: Start difference. First operand 6535 states and 22772 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:17,214 INFO L93 Difference]: Finished difference Result 12365 states and 42153 transitions. [2022-01-18 17:56:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-01-18 17:56:17,214 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:17,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:17,239 INFO L225 Difference]: With dead ends: 12365 [2022-01-18 17:56:17,239 INFO L226 Difference]: Without dead ends: 12274 [2022-01-18 17:56:17,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2736 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=645, Invalid=7911, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 17:56:17,240 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 569 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 4927 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 5045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:17,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 3509 Invalid, 5045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4927 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 17:56:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12274 states. [2022-01-18 17:56:17,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12274 to 6511. [2022-01-18 17:56:17,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6511 states, 6510 states have (on average 3.489554531490015) internal successors, (22717), 6510 states have internal predecessors, (22717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:17,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6511 states to 6511 states and 22717 transitions. [2022-01-18 17:56:17,393 INFO L78 Accepts]: Start accepts. Automaton has 6511 states and 22717 transitions. Word has length 39 [2022-01-18 17:56:17,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:17,393 INFO L470 AbstractCegarLoop]: Abstraction has 6511 states and 22717 transitions. [2022-01-18 17:56:17,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:17,393 INFO L276 IsEmpty]: Start isEmpty. Operand 6511 states and 22717 transitions. [2022-01-18 17:56:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:17,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:17,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:17,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 17:56:17,403 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash -339149448, now seen corresponding path program 151 times [2022-01-18 17:56:17,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:17,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705124253] [2022-01-18 17:56:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:17,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:17,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:17,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705124253] [2022-01-18 17:56:17,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705124253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:17,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:17,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:17,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201792892] [2022-01-18 17:56:17,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:17,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:17,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:17,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:17,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:17,608 INFO L87 Difference]: Start difference. First operand 6511 states and 22717 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:20,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:20,963 INFO L93 Difference]: Finished difference Result 13797 states and 46865 transitions. [2022-01-18 17:56:20,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-01-18 17:56:20,964 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:20,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:21,029 INFO L225 Difference]: With dead ends: 13797 [2022-01-18 17:56:21,029 INFO L226 Difference]: Without dead ends: 13624 [2022-01-18 17:56:21,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3858 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=808, Invalid=10534, Unknown=0, NotChecked=0, Total=11342 [2022-01-18 17:56:21,030 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 647 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 5256 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 5426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 5256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:21,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 3671 Invalid, 5426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 5256 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:56:21,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13624 states. [2022-01-18 17:56:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13624 to 6571. [2022-01-18 17:56:21,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 6570 states have (on average 3.4881278538812786) internal successors, (22917), 6570 states have internal predecessors, (22917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 22917 transitions. [2022-01-18 17:56:21,147 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 22917 transitions. Word has length 39 [2022-01-18 17:56:21,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:21,148 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 22917 transitions. [2022-01-18 17:56:21,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:21,148 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 22917 transitions. [2022-01-18 17:56:21,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:21,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:21,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:21,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 17:56:21,159 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:21,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:21,159 INFO L85 PathProgramCache]: Analyzing trace with hash 833502774, now seen corresponding path program 152 times [2022-01-18 17:56:21,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:21,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118259487] [2022-01-18 17:56:21,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:21,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:21,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:21,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118259487] [2022-01-18 17:56:21,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118259487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:21,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:21,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:21,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502451406] [2022-01-18 17:56:21,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:21,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:21,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:21,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:21,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:21,366 INFO L87 Difference]: Start difference. First operand 6571 states and 22917 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:24,968 INFO L93 Difference]: Finished difference Result 14359 states and 48671 transitions. [2022-01-18 17:56:24,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-01-18 17:56:24,969 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:24,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:24,999 INFO L225 Difference]: With dead ends: 14359 [2022-01-18 17:56:24,999 INFO L226 Difference]: Without dead ends: 14178 [2022-01-18 17:56:25,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4390 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=900, Invalid=11756, Unknown=0, NotChecked=0, Total=12656 [2022-01-18 17:56:25,000 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 670 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 5249 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 5423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 5249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:25,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 3795 Invalid, 5423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 5249 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:56:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14178 states. [2022-01-18 17:56:25,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14178 to 6676. [2022-01-18 17:56:25,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6676 states, 6675 states have (on average 3.4885393258426967) internal successors, (23286), 6675 states have internal predecessors, (23286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 23286 transitions. [2022-01-18 17:56:25,164 INFO L78 Accepts]: Start accepts. Automaton has 6676 states and 23286 transitions. Word has length 39 [2022-01-18 17:56:25,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:25,164 INFO L470 AbstractCegarLoop]: Abstraction has 6676 states and 23286 transitions. [2022-01-18 17:56:25,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 6676 states and 23286 transitions. [2022-01-18 17:56:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:25,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:25,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:25,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 17:56:25,174 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:25,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:25,174 INFO L85 PathProgramCache]: Analyzing trace with hash 765757894, now seen corresponding path program 153 times [2022-01-18 17:56:25,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:25,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926838617] [2022-01-18 17:56:25,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:25,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:25,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:25,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926838617] [2022-01-18 17:56:25,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926838617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:25,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:25,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:25,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997561940] [2022-01-18 17:56:25,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:25,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:25,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:25,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:25,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:25,379 INFO L87 Difference]: Start difference. First operand 6676 states and 23286 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:28,701 INFO L93 Difference]: Finished difference Result 13824 states and 46990 transitions. [2022-01-18 17:56:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-01-18 17:56:28,701 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:28,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:28,767 INFO L225 Difference]: With dead ends: 13824 [2022-01-18 17:56:28,767 INFO L226 Difference]: Without dead ends: 13690 [2022-01-18 17:56:28,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3775 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=786, Invalid=10344, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 17:56:28,769 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 645 mSDsluCounter, 3986 mSDsCounter, 0 mSdLazyCounter, 5211 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 5372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 5211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:28,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 3690 Invalid, 5372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 5211 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:56:28,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13690 states. [2022-01-18 17:56:28,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13690 to 6675. [2022-01-18 17:56:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 6674 states have (on average 3.488163020677255) internal successors, (23280), 6674 states have internal predecessors, (23280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 23280 transitions. [2022-01-18 17:56:28,887 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 23280 transitions. Word has length 39 [2022-01-18 17:56:28,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:28,887 INFO L470 AbstractCegarLoop]: Abstraction has 6675 states and 23280 transitions. [2022-01-18 17:56:28,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 23280 transitions. [2022-01-18 17:56:28,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:28,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:28,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:28,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 17:56:28,897 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:28,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:28,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1161883864, now seen corresponding path program 154 times [2022-01-18 17:56:28,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:28,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098356580] [2022-01-18 17:56:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:28,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:29,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:29,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098356580] [2022-01-18 17:56:29,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098356580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:29,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:29,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:29,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527983208] [2022-01-18 17:56:29,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:29,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:29,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:29,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:29,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:29,105 INFO L87 Difference]: Start difference. First operand 6675 states and 23280 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:32,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:32,647 INFO L93 Difference]: Finished difference Result 14374 states and 48713 transitions. [2022-01-18 17:56:32,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-01-18 17:56:32,647 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:32,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:32,677 INFO L225 Difference]: With dead ends: 14374 [2022-01-18 17:56:32,677 INFO L226 Difference]: Without dead ends: 14206 [2022-01-18 17:56:32,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4398 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=882, Invalid=11774, Unknown=0, NotChecked=0, Total=12656 [2022-01-18 17:56:32,679 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 672 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 5353 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 5521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 5353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:32,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 3817 Invalid, 5521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 5353 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:56:32,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2022-01-18 17:56:32,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 6559. [2022-01-18 17:56:32,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6559 states, 6558 states have (on average 3.489021043000915) internal successors, (22881), 6558 states have internal predecessors, (22881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:32,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6559 states to 6559 states and 22881 transitions. [2022-01-18 17:56:32,845 INFO L78 Accepts]: Start accepts. Automaton has 6559 states and 22881 transitions. Word has length 39 [2022-01-18 17:56:32,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:32,845 INFO L470 AbstractCegarLoop]: Abstraction has 6559 states and 22881 transitions. [2022-01-18 17:56:32,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:32,845 INFO L276 IsEmpty]: Start isEmpty. Operand 6559 states and 22881 transitions. [2022-01-18 17:56:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:32,855 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:32,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:32,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 17:56:32,855 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:32,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:32,855 INFO L85 PathProgramCache]: Analyzing trace with hash -158126948, now seen corresponding path program 155 times [2022-01-18 17:56:32,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:32,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25722709] [2022-01-18 17:56:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:32,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:33,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:33,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25722709] [2022-01-18 17:56:33,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25722709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:33,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:33,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:33,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247398751] [2022-01-18 17:56:33,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:33,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:33,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:33,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:33,059 INFO L87 Difference]: Start difference. First operand 6559 states and 22881 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:34,499 INFO L93 Difference]: Finished difference Result 9304 states and 32116 transitions. [2022-01-18 17:56:34,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:56:34,500 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:34,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:34,518 INFO L225 Difference]: With dead ends: 9304 [2022-01-18 17:56:34,518 INFO L226 Difference]: Without dead ends: 9237 [2022-01-18 17:56:34,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2592, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:56:34,519 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 450 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:34,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 2088 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:56:34,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9237 states. [2022-01-18 17:56:34,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9237 to 6779. [2022-01-18 17:56:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6779 states, 6778 states have (on average 3.487606963706108) internal successors, (23639), 6778 states have internal predecessors, (23639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6779 states to 6779 states and 23639 transitions. [2022-01-18 17:56:34,625 INFO L78 Accepts]: Start accepts. Automaton has 6779 states and 23639 transitions. Word has length 39 [2022-01-18 17:56:34,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:34,625 INFO L470 AbstractCegarLoop]: Abstraction has 6779 states and 23639 transitions. [2022-01-18 17:56:34,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 6779 states and 23639 transitions. [2022-01-18 17:56:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:34,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:34,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:34,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 17:56:34,636 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:34,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:34,636 INFO L85 PathProgramCache]: Analyzing trace with hash -288721796, now seen corresponding path program 156 times [2022-01-18 17:56:34,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:34,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578623770] [2022-01-18 17:56:34,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:34,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:34,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:34,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578623770] [2022-01-18 17:56:34,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578623770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:34,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:34,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:34,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625786486] [2022-01-18 17:56:34,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:34,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:34,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:34,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:34,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:34,846 INFO L87 Difference]: Start difference. First operand 6779 states and 23639 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:36,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:36,264 INFO L93 Difference]: Finished difference Result 9244 states and 31928 transitions. [2022-01-18 17:56:36,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:56:36,264 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:36,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:36,282 INFO L225 Difference]: With dead ends: 9244 [2022-01-18 17:56:36,282 INFO L226 Difference]: Without dead ends: 9181 [2022-01-18 17:56:36,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2485, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 17:56:36,282 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 419 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:36,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 1947 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:56:36,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9181 states. [2022-01-18 17:56:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9181 to 6771. [2022-01-18 17:56:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6771 states, 6770 states have (on average 3.4881831610044314) internal successors, (23615), 6770 states have internal predecessors, (23615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6771 states to 6771 states and 23615 transitions. [2022-01-18 17:56:36,381 INFO L78 Accepts]: Start accepts. Automaton has 6771 states and 23615 transitions. Word has length 39 [2022-01-18 17:56:36,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:36,381 INFO L470 AbstractCegarLoop]: Abstraction has 6771 states and 23615 transitions. [2022-01-18 17:56:36,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:36,381 INFO L276 IsEmpty]: Start isEmpty. Operand 6771 states and 23615 transitions. [2022-01-18 17:56:36,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:36,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:36,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:36,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 17:56:36,391 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:36,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:36,391 INFO L85 PathProgramCache]: Analyzing trace with hash -424400388, now seen corresponding path program 157 times [2022-01-18 17:56:36,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:36,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80969764] [2022-01-18 17:56:36,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:36,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:36,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:36,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80969764] [2022-01-18 17:56:36,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80969764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:36,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:36,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:36,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827704332] [2022-01-18 17:56:36,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:36,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:36,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:36,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:36,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:36,601 INFO L87 Difference]: Start difference. First operand 6771 states and 23615 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:38,656 INFO L93 Difference]: Finished difference Result 10467 states and 36092 transitions. [2022-01-18 17:56:38,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 17:56:38,657 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:38,678 INFO L225 Difference]: With dead ends: 10467 [2022-01-18 17:56:38,678 INFO L226 Difference]: Without dead ends: 10424 [2022-01-18 17:56:38,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=482, Invalid=5524, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 17:56:38,679 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 575 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 3222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:38,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 2239 Invalid, 3222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 3100 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:56:38,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2022-01-18 17:56:38,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 6983. [2022-01-18 17:56:38,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 6982 states have (on average 3.4925522772844455) internal successors, (24385), 6982 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 24385 transitions. [2022-01-18 17:56:38,797 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 24385 transitions. Word has length 39 [2022-01-18 17:56:38,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:38,797 INFO L470 AbstractCegarLoop]: Abstraction has 6983 states and 24385 transitions. [2022-01-18 17:56:38,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:38,797 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 24385 transitions. [2022-01-18 17:56:38,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:38,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:38,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:38,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 17:56:38,808 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:38,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:38,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2089968606, now seen corresponding path program 158 times [2022-01-18 17:56:38,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:38,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778071721] [2022-01-18 17:56:38,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:38,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:39,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:39,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778071721] [2022-01-18 17:56:39,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778071721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:39,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:39,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:39,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000559854] [2022-01-18 17:56:39,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:39,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:39,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:39,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:39,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:39,017 INFO L87 Difference]: Start difference. First operand 6983 states and 24385 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:41,346 INFO L93 Difference]: Finished difference Result 11670 states and 40166 transitions. [2022-01-18 17:56:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 17:56:41,346 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:41,370 INFO L225 Difference]: With dead ends: 11670 [2022-01-18 17:56:41,370 INFO L226 Difference]: Without dead ends: 11606 [2022-01-18 17:56:41,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2200 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=531, Invalid=6609, Unknown=0, NotChecked=0, Total=7140 [2022-01-18 17:56:41,371 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 606 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:41,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [606 Valid, 2665 Invalid, 3591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:56:41,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11606 states. [2022-01-18 17:56:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11606 to 6899. [2022-01-18 17:56:41,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6899 states, 6898 states have (on average 3.4956509133082054) internal successors, (24113), 6898 states have internal predecessors, (24113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:41,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 24113 transitions. [2022-01-18 17:56:41,499 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 24113 transitions. Word has length 39 [2022-01-18 17:56:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:41,499 INFO L470 AbstractCegarLoop]: Abstraction has 6899 states and 24113 transitions. [2022-01-18 17:56:41,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 24113 transitions. [2022-01-18 17:56:41,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:41,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:41,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:41,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 17:56:41,510 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:41,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:41,510 INFO L85 PathProgramCache]: Analyzing trace with hash 494083182, now seen corresponding path program 159 times [2022-01-18 17:56:41,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:41,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742744527] [2022-01-18 17:56:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:41,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:41,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:41,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742744527] [2022-01-18 17:56:41,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742744527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:41,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:41,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:41,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220866954] [2022-01-18 17:56:41,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:41,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:41,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:41,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:41,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:41,720 INFO L87 Difference]: Start difference. First operand 6899 states and 24113 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:43,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:43,170 INFO L93 Difference]: Finished difference Result 9487 states and 32701 transitions. [2022-01-18 17:56:43,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 17:56:43,171 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:43,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:43,190 INFO L225 Difference]: With dead ends: 9487 [2022-01-18 17:56:43,190 INFO L226 Difference]: Without dead ends: 9432 [2022-01-18 17:56:43,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 17:56:43,190 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 426 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:43,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1961 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:56:43,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9432 states. [2022-01-18 17:56:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9432 to 6901. [2022-01-18 17:56:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 6900 states have (on average 3.495072463768116) internal successors, (24116), 6900 states have internal predecessors, (24116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:43,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 24116 transitions. [2022-01-18 17:56:43,343 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 24116 transitions. Word has length 39 [2022-01-18 17:56:43,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:43,343 INFO L470 AbstractCegarLoop]: Abstraction has 6901 states and 24116 transitions. [2022-01-18 17:56:43,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:43,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 24116 transitions. [2022-01-18 17:56:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:43,353 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:43,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:43,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 17:56:43,353 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:43,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:43,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1666735404, now seen corresponding path program 160 times [2022-01-18 17:56:43,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:43,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894929976] [2022-01-18 17:56:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:43,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:43,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:43,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:43,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894929976] [2022-01-18 17:56:43,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894929976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:43,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:43,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:43,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576996294] [2022-01-18 17:56:43,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:43,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:43,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:43,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:43,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:43,562 INFO L87 Difference]: Start difference. First operand 6901 states and 24116 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:45,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:45,197 INFO L93 Difference]: Finished difference Result 10611 states and 36548 transitions. [2022-01-18 17:56:45,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 17:56:45,210 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:45,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:45,231 INFO L225 Difference]: With dead ends: 10611 [2022-01-18 17:56:45,231 INFO L226 Difference]: Without dead ends: 10565 [2022-01-18 17:56:45,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=325, Invalid=3215, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:56:45,232 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 451 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:45,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2387 Invalid, 3083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:56:45,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2022-01-18 17:56:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 6905. [2022-01-18 17:56:45,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6905 states, 6904 states have (on average 3.4942062572421784) internal successors, (24124), 6904 states have internal predecessors, (24124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 24124 transitions. [2022-01-18 17:56:45,348 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 24124 transitions. Word has length 39 [2022-01-18 17:56:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:45,348 INFO L470 AbstractCegarLoop]: Abstraction has 6905 states and 24124 transitions. [2022-01-18 17:56:45,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 24124 transitions. [2022-01-18 17:56:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:45,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:45,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:45,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 17:56:45,359 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:45,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:45,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1419269242, now seen corresponding path program 161 times [2022-01-18 17:56:45,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:45,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894691375] [2022-01-18 17:56:45,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:45,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:45,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:45,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:45,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894691375] [2022-01-18 17:56:45,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894691375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:45,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:45,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:45,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833878754] [2022-01-18 17:56:45,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:45,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:45,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:45,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:45,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:45,565 INFO L87 Difference]: Start difference. First operand 6905 states and 24124 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:47,084 INFO L93 Difference]: Finished difference Result 9531 states and 32885 transitions. [2022-01-18 17:56:47,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:56:47,084 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:47,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:47,103 INFO L225 Difference]: With dead ends: 9531 [2022-01-18 17:56:47,104 INFO L226 Difference]: Without dead ends: 9478 [2022-01-18 17:56:47,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 17:56:47,104 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 429 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:47,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2087 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:56:47,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9478 states. [2022-01-18 17:56:47,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9478 to 6895. [2022-01-18 17:56:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6895 states, 6894 states have (on average 3.496228604583696) internal successors, (24103), 6894 states have internal predecessors, (24103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:47,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 24103 transitions. [2022-01-18 17:56:47,235 INFO L78 Accepts]: Start accepts. Automaton has 6895 states and 24103 transitions. Word has length 39 [2022-01-18 17:56:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:47,236 INFO L470 AbstractCegarLoop]: Abstraction has 6895 states and 24103 transitions. [2022-01-18 17:56:47,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6895 states and 24103 transitions. [2022-01-18 17:56:47,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:47,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:47,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:47,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 17:56:47,246 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:47,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1336822532, now seen corresponding path program 162 times [2022-01-18 17:56:47,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:47,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888398184] [2022-01-18 17:56:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:47,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:47,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:47,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888398184] [2022-01-18 17:56:47,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888398184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:47,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:47,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:47,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516947821] [2022-01-18 17:56:47,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:47,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:47,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:47,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:47,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:47,461 INFO L87 Difference]: Start difference. First operand 6895 states and 24103 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:48,849 INFO L93 Difference]: Finished difference Result 9368 states and 32482 transitions. [2022-01-18 17:56:48,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 17:56:48,849 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:48,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:48,867 INFO L225 Difference]: With dead ends: 9368 [2022-01-18 17:56:48,868 INFO L226 Difference]: Without dead ends: 9301 [2022-01-18 17:56:48,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=2316, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 17:56:48,868 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 414 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 2856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:48,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2100 Invalid, 2856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:56:48,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9301 states. [2022-01-18 17:56:48,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9301 to 6951. [2022-01-18 17:56:48,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6951 states, 6950 states have (on average 3.4913669064748203) internal successors, (24265), 6950 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:48,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6951 states to 6951 states and 24265 transitions. [2022-01-18 17:56:48,976 INFO L78 Accepts]: Start accepts. Automaton has 6951 states and 24265 transitions. Word has length 39 [2022-01-18 17:56:48,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:48,976 INFO L470 AbstractCegarLoop]: Abstraction has 6951 states and 24265 transitions. [2022-01-18 17:56:48,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:48,976 INFO L276 IsEmpty]: Start isEmpty. Operand 6951 states and 24265 transitions. [2022-01-18 17:56:48,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:48,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:48,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:48,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 17:56:48,987 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:48,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:48,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1467417380, now seen corresponding path program 163 times [2022-01-18 17:56:48,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:48,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914389307] [2022-01-18 17:56:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:48,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:49,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:49,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914389307] [2022-01-18 17:56:49,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914389307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:49,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:49,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:49,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107379198] [2022-01-18 17:56:49,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:49,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:49,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:49,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:49,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:49,192 INFO L87 Difference]: Start difference. First operand 6951 states and 24265 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:50,523 INFO L93 Difference]: Finished difference Result 9404 states and 32566 transitions. [2022-01-18 17:56:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 17:56:50,524 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:50,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:50,572 INFO L225 Difference]: With dead ends: 9404 [2022-01-18 17:56:50,573 INFO L226 Difference]: Without dead ends: 9341 [2022-01-18 17:56:50,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=2212, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 17:56:50,573 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 394 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:50,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1957 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:56:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-01-18 17:56:50,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 6983. [2022-01-18 17:56:50,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 6982 states have (on average 3.487396161558293) internal successors, (24349), 6982 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 24349 transitions. [2022-01-18 17:56:50,673 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 24349 transitions. Word has length 39 [2022-01-18 17:56:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:50,674 INFO L470 AbstractCegarLoop]: Abstraction has 6983 states and 24349 transitions. [2022-01-18 17:56:50,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 24349 transitions. [2022-01-18 17:56:50,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:50,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:50,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:50,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 17:56:50,684 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:50,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:50,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1997317828, now seen corresponding path program 164 times [2022-01-18 17:56:50,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:50,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606260513] [2022-01-18 17:56:50,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:50,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:50,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:50,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606260513] [2022-01-18 17:56:50,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606260513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:50,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:50,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:50,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800490754] [2022-01-18 17:56:50,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:50,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:50,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:50,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:50,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:50,888 INFO L87 Difference]: Start difference. First operand 6983 states and 24349 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:52,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:52,223 INFO L93 Difference]: Finished difference Result 9387 states and 32540 transitions. [2022-01-18 17:56:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 17:56:52,223 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:52,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:52,242 INFO L225 Difference]: With dead ends: 9387 [2022-01-18 17:56:52,242 INFO L226 Difference]: Without dead ends: 9264 [2022-01-18 17:56:52,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=246, Invalid=2304, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 17:56:52,243 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 384 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 2623 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:52,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 1997 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2623 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:56:52,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9264 states. [2022-01-18 17:56:52,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9264 to 6951. [2022-01-18 17:56:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6951 states, 6950 states have (on average 3.489064748201439) internal successors, (24249), 6950 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:52,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6951 states to 6951 states and 24249 transitions. [2022-01-18 17:56:52,350 INFO L78 Accepts]: Start accepts. Automaton has 6951 states and 24249 transitions. Word has length 39 [2022-01-18 17:56:52,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:52,350 INFO L470 AbstractCegarLoop]: Abstraction has 6951 states and 24249 transitions. [2022-01-18 17:56:52,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:52,350 INFO L276 IsEmpty]: Start isEmpty. Operand 6951 states and 24249 transitions. [2022-01-18 17:56:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:52,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:52,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:52,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 17:56:52,360 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:52,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:52,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1579238298, now seen corresponding path program 165 times [2022-01-18 17:56:52,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:52,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333689203] [2022-01-18 17:56:52,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:52,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:52,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:52,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333689203] [2022-01-18 17:56:52,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333689203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:52,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:52,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:52,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13280514] [2022-01-18 17:56:52,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:52,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:52,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:52,565 INFO L87 Difference]: Start difference. First operand 6951 states and 24249 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:54,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:54,631 INFO L93 Difference]: Finished difference Result 10564 states and 36421 transitions. [2022-01-18 17:56:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-18 17:56:54,631 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:54,651 INFO L225 Difference]: With dead ends: 10564 [2022-01-18 17:56:54,651 INFO L226 Difference]: Without dead ends: 10458 [2022-01-18 17:56:54,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=485, Invalid=5521, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 17:56:54,652 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 599 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 3192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:54,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 2329 Invalid, 3192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:56:54,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10458 states. [2022-01-18 17:56:54,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10458 to 6978. [2022-01-18 17:56:54,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6978 states, 6977 states have (on average 3.486742152787731) internal successors, (24327), 6977 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:54,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6978 states to 6978 states and 24327 transitions. [2022-01-18 17:56:54,765 INFO L78 Accepts]: Start accepts. Automaton has 6978 states and 24327 transitions. Word has length 39 [2022-01-18 17:56:54,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:54,765 INFO L470 AbstractCegarLoop]: Abstraction has 6978 states and 24327 transitions. [2022-01-18 17:56:54,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:54,765 INFO L276 IsEmpty]: Start isEmpty. Operand 6978 states and 24327 transitions. [2022-01-18 17:56:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:54,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:54,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:54,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 17:56:54,775 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:54,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:54,776 INFO L85 PathProgramCache]: Analyzing trace with hash -201360004, now seen corresponding path program 166 times [2022-01-18 17:56:54,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:54,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946672243] [2022-01-18 17:56:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:54,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:54,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:54,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946672243] [2022-01-18 17:56:54,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946672243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:54,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:54,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:54,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639233886] [2022-01-18 17:56:54,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:54,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:54,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:54,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:54,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:54,986 INFO L87 Difference]: Start difference. First operand 6978 states and 24327 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:57,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:57,319 INFO L93 Difference]: Finished difference Result 11735 states and 40418 transitions. [2022-01-18 17:56:57,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 17:56:57,319 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:57,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:57,343 INFO L225 Difference]: With dead ends: 11735 [2022-01-18 17:56:57,343 INFO L226 Difference]: Without dead ends: 11683 [2022-01-18 17:56:57,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2276 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=540, Invalid=6770, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 17:56:57,344 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 632 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 3453 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 3582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:57,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [632 Valid, 2727 Invalid, 3582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3453 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:56:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11683 states. [2022-01-18 17:56:57,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 6956. [2022-01-18 17:56:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 3.4869877785765637) internal successors, (24252), 6955 states have internal predecessors, (24252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 24252 transitions. [2022-01-18 17:56:57,522 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 24252 transitions. Word has length 39 [2022-01-18 17:56:57,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:57,522 INFO L470 AbstractCegarLoop]: Abstraction has 6956 states and 24252 transitions. [2022-01-18 17:56:57,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:57,522 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 24252 transitions. [2022-01-18 17:56:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:57,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:57,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:57,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 17:56:57,532 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:57,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:57,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1797245428, now seen corresponding path program 167 times [2022-01-18 17:56:57,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:57,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857829468] [2022-01-18 17:56:57,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:57,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:57,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:57,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857829468] [2022-01-18 17:56:57,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857829468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:57,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:57,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:57,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176574744] [2022-01-18 17:56:57,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:57,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:57,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:57,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:57,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:57,733 INFO L87 Difference]: Start difference. First operand 6956 states and 24252 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:59,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:56:59,141 INFO L93 Difference]: Finished difference Result 9517 states and 32824 transitions. [2022-01-18 17:56:59,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 17:56:59,141 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:56:59,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:56:59,160 INFO L225 Difference]: With dead ends: 9517 [2022-01-18 17:56:59,160 INFO L226 Difference]: Without dead ends: 9462 [2022-01-18 17:56:59,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=289, Invalid=2573, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:56:59,161 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 426 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:56:59,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1942 Invalid, 2646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:56:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9462 states. [2022-01-18 17:56:59,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9462 to 6964. [2022-01-18 17:56:59,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6964 states, 6963 states have (on average 3.4864282636794486) internal successors, (24276), 6963 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6964 states to 6964 states and 24276 transitions. [2022-01-18 17:56:59,271 INFO L78 Accepts]: Start accepts. Automaton has 6964 states and 24276 transitions. Word has length 39 [2022-01-18 17:56:59,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:56:59,271 INFO L470 AbstractCegarLoop]: Abstraction has 6964 states and 24276 transitions. [2022-01-18 17:56:59,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:56:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6964 states and 24276 transitions. [2022-01-18 17:56:59,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:56:59,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:56:59,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:56:59,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 17:56:59,281 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:56:59,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:56:59,281 INFO L85 PathProgramCache]: Analyzing trace with hash -624593206, now seen corresponding path program 168 times [2022-01-18 17:56:59,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:56:59,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522860104] [2022-01-18 17:56:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:56:59,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:56:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:56:59,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:56:59,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:56:59,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522860104] [2022-01-18 17:56:59,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522860104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:56:59,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:56:59,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:56:59,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833416276] [2022-01-18 17:56:59,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:56:59,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:56:59,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:56:59,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:56:59,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:56:59,486 INFO L87 Difference]: Start difference. First operand 6964 states and 24276 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:01,114 INFO L93 Difference]: Finished difference Result 10709 states and 36828 transitions. [2022-01-18 17:57:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 17:57:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:01,135 INFO L225 Difference]: With dead ends: 10709 [2022-01-18 17:57:01,136 INFO L226 Difference]: Without dead ends: 10649 [2022-01-18 17:57:01,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=323, Invalid=3217, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:57:01,136 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 459 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:01,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 2392 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:57:01,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2022-01-18 17:57:01,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 6962. [2022-01-18 17:57:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6961 states have (on average 3.4867116793564144) internal successors, (24271), 6961 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 24271 transitions. [2022-01-18 17:57:01,279 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 24271 transitions. Word has length 39 [2022-01-18 17:57:01,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:01,279 INFO L470 AbstractCegarLoop]: Abstraction has 6962 states and 24271 transitions. [2022-01-18 17:57:01,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 24271 transitions. [2022-01-18 17:57:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:01,289 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:01,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:01,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 17:57:01,289 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:01,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:01,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1792970488, now seen corresponding path program 169 times [2022-01-18 17:57:01,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:01,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790420932] [2022-01-18 17:57:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:01,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:01,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:01,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790420932] [2022-01-18 17:57:01,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790420932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:01,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:01,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:01,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456397245] [2022-01-18 17:57:01,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:01,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:01,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:01,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:01,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:01,489 INFO L87 Difference]: Start difference. First operand 6962 states and 24271 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:02,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:02,858 INFO L93 Difference]: Finished difference Result 9486 states and 32778 transitions. [2022-01-18 17:57:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:57:02,858 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:02,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:02,877 INFO L225 Difference]: With dead ends: 9486 [2022-01-18 17:57:02,877 INFO L226 Difference]: Without dead ends: 9395 [2022-01-18 17:57:02,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2485, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 17:57:02,878 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 411 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:02,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 2005 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:02,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2022-01-18 17:57:02,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 6962. [2022-01-18 17:57:02,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6961 states have (on average 3.4858497342335872) internal successors, (24265), 6961 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 24265 transitions. [2022-01-18 17:57:02,988 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 24265 transitions. Word has length 39 [2022-01-18 17:57:02,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:02,988 INFO L470 AbstractCegarLoop]: Abstraction has 6962 states and 24265 transitions. [2022-01-18 17:57:02,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:02,988 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 24265 transitions. [2022-01-18 17:57:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:02,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:02,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:02,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 17:57:02,998 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:02,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:02,998 INFO L85 PathProgramCache]: Analyzing trace with hash 290488282, now seen corresponding path program 170 times [2022-01-18 17:57:02,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:02,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586405229] [2022-01-18 17:57:02,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:02,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:03,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:03,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586405229] [2022-01-18 17:57:03,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586405229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:03,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:03,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:03,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806000110] [2022-01-18 17:57:03,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:03,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:03,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:03,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:03,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:03,212 INFO L87 Difference]: Start difference. First operand 6962 states and 24265 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:04,907 INFO L93 Difference]: Finished difference Result 10861 states and 37319 transitions. [2022-01-18 17:57:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 17:57:04,907 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:04,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:04,927 INFO L225 Difference]: With dead ends: 10861 [2022-01-18 17:57:04,927 INFO L226 Difference]: Without dead ends: 10660 [2022-01-18 17:57:04,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=309, Invalid=3231, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:57:04,928 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 453 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 3151 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 3213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:04,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 2595 Invalid, 3213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3151 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:57:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2022-01-18 17:57:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 6982. [2022-01-18 17:57:05,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6982 states, 6981 states have (on average 3.484744305973356) internal successors, (24327), 6981 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6982 states to 6982 states and 24327 transitions. [2022-01-18 17:57:05,040 INFO L78 Accepts]: Start accepts. Automaton has 6982 states and 24327 transitions. Word has length 39 [2022-01-18 17:57:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:05,040 INFO L470 AbstractCegarLoop]: Abstraction has 6982 states and 24327 transitions. [2022-01-18 17:57:05,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:05,040 INFO L276 IsEmpty]: Start isEmpty. Operand 6982 states and 24327 transitions. [2022-01-18 17:57:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:05,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:05,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:05,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 17:57:05,050 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:05,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:05,051 INFO L85 PathProgramCache]: Analyzing trace with hash -121376578, now seen corresponding path program 171 times [2022-01-18 17:57:05,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:05,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766434245] [2022-01-18 17:57:05,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:05,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:05,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:05,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766434245] [2022-01-18 17:57:05,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766434245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:05,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:05,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:05,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994251583] [2022-01-18 17:57:05,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:05,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:05,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:05,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:05,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:05,256 INFO L87 Difference]: Start difference. First operand 6982 states and 24327 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:06,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:06,829 INFO L93 Difference]: Finished difference Result 9601 states and 32947 transitions. [2022-01-18 17:57:06,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 17:57:06,829 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:06,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:06,848 INFO L225 Difference]: With dead ends: 9601 [2022-01-18 17:57:06,848 INFO L226 Difference]: Without dead ends: 9534 [2022-01-18 17:57:06,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=3103, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:57:06,849 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 435 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 2725 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:06,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 2068 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2725 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:06,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9534 states. [2022-01-18 17:57:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9534 to 7008. [2022-01-18 17:57:06,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4840873412301985) internal successors, (24413), 7007 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:06,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24413 transitions. [2022-01-18 17:57:06,960 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24413 transitions. Word has length 39 [2022-01-18 17:57:06,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:06,961 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24413 transitions. [2022-01-18 17:57:06,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:06,961 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24413 transitions. [2022-01-18 17:57:06,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:06,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:06,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:06,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 17:57:06,971 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:06,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:06,971 INFO L85 PathProgramCache]: Analyzing trace with hash -251971426, now seen corresponding path program 172 times [2022-01-18 17:57:06,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:06,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705152863] [2022-01-18 17:57:06,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:06,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:07,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:07,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:07,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705152863] [2022-01-18 17:57:07,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705152863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:07,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:07,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:07,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301896828] [2022-01-18 17:57:07,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:07,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:07,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:07,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:07,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:07,177 INFO L87 Difference]: Start difference. First operand 7008 states and 24413 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:08,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:08,656 INFO L93 Difference]: Finished difference Result 9514 states and 32714 transitions. [2022-01-18 17:57:08,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:57:08,656 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:08,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:08,675 INFO L225 Difference]: With dead ends: 9514 [2022-01-18 17:57:08,675 INFO L226 Difference]: Without dead ends: 9451 [2022-01-18 17:57:08,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 17:57:08,675 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 398 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:08,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1915 Invalid, 2601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:08,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9451 states. [2022-01-18 17:57:08,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9451 to 7008. [2022-01-18 17:57:08,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4835164835164836) internal successors, (24409), 7007 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:08,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24409 transitions. [2022-01-18 17:57:08,781 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24409 transitions. Word has length 39 [2022-01-18 17:57:08,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:08,781 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24409 transitions. [2022-01-18 17:57:08,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:08,782 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24409 transitions. [2022-01-18 17:57:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:08,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:08,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:08,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 17:57:08,792 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash -387650018, now seen corresponding path program 173 times [2022-01-18 17:57:08,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:08,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578627141] [2022-01-18 17:57:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:08,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:08,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:08,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:08,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578627141] [2022-01-18 17:57:08,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578627141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:08,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:08,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:08,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405776618] [2022-01-18 17:57:08,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:08,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:08,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:08,994 INFO L87 Difference]: Start difference. First operand 7008 states and 24409 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:11,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:11,267 INFO L93 Difference]: Finished difference Result 10634 states and 36442 transitions. [2022-01-18 17:57:11,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 17:57:11,268 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:11,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:11,289 INFO L225 Difference]: With dead ends: 10634 [2022-01-18 17:57:11,289 INFO L226 Difference]: Without dead ends: 10591 [2022-01-18 17:57:11,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2336 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=592, Invalid=6890, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 17:57:11,290 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 570 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:11,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 2173 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:57:11,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10591 states. [2022-01-18 17:57:11,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10591 to 7018. [2022-01-18 17:57:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 7017 states have (on average 3.4839675074818297) internal successors, (24447), 7017 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 24447 transitions. [2022-01-18 17:57:11,413 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 24447 transitions. Word has length 39 [2022-01-18 17:57:11,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:11,413 INFO L470 AbstractCegarLoop]: Abstraction has 7018 states and 24447 transitions. [2022-01-18 17:57:11,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:11,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 24447 transitions. [2022-01-18 17:57:11,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:11,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:11,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:11,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 17:57:11,424 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:11,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:11,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2126718976, now seen corresponding path program 174 times [2022-01-18 17:57:11,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:11,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515130873] [2022-01-18 17:57:11,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:11,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:11,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:11,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515130873] [2022-01-18 17:57:11,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515130873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:11,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:11,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:11,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230803944] [2022-01-18 17:57:11,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:11,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:11,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:11,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:11,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:11,646 INFO L87 Difference]: Start difference. First operand 7018 states and 24447 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:14,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:14,163 INFO L93 Difference]: Finished difference Result 11861 states and 40576 transitions. [2022-01-18 17:57:14,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 17:57:14,163 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:14,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:14,187 INFO L225 Difference]: With dead ends: 11861 [2022-01-18 17:57:14,187 INFO L226 Difference]: Without dead ends: 11809 [2022-01-18 17:57:14,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2834 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=639, Invalid=8103, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 17:57:14,188 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 601 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 3508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:14,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 2603 Invalid, 3508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:57:14,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11809 states. [2022-01-18 17:57:14,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11809 to 7014. [2022-01-18 17:57:14,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 7013 states have (on average 3.4839583630400686) internal successors, (24433), 7013 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 24433 transitions. [2022-01-18 17:57:14,318 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 24433 transitions. Word has length 39 [2022-01-18 17:57:14,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:14,318 INFO L470 AbstractCegarLoop]: Abstraction has 7014 states and 24433 transitions. [2022-01-18 17:57:14,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:14,318 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 24433 transitions. [2022-01-18 17:57:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:14,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:14,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:14,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 17:57:14,328 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:14,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:14,328 INFO L85 PathProgramCache]: Analyzing trace with hash 530833552, now seen corresponding path program 175 times [2022-01-18 17:57:14,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:14,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493285347] [2022-01-18 17:57:14,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:14,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:14,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:14,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:14,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493285347] [2022-01-18 17:57:14,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493285347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:14,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:14,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:14,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999300156] [2022-01-18 17:57:14,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:14,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:14,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:14,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:14,532 INFO L87 Difference]: Start difference. First operand 7014 states and 24433 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:16,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:16,083 INFO L93 Difference]: Finished difference Result 9608 states and 32926 transitions. [2022-01-18 17:57:16,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 17:57:16,083 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:16,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:16,101 INFO L225 Difference]: With dead ends: 9608 [2022-01-18 17:57:16,101 INFO L226 Difference]: Without dead ends: 9553 [2022-01-18 17:57:16,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=339, Invalid=3083, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:57:16,101 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 415 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:16,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 1923 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:16,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9553 states. [2022-01-18 17:57:16,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9553 to 7016. [2022-01-18 17:57:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.4833927298645757) internal successors, (24436), 7015 states have internal predecessors, (24436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24436 transitions. [2022-01-18 17:57:16,206 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24436 transitions. Word has length 39 [2022-01-18 17:57:16,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:16,206 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24436 transitions. [2022-01-18 17:57:16,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24436 transitions. [2022-01-18 17:57:16,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:16,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:16,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:16,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 17:57:16,217 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:16,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:16,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1703485774, now seen corresponding path program 176 times [2022-01-18 17:57:16,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:16,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981963417] [2022-01-18 17:57:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:16,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:16,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:16,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981963417] [2022-01-18 17:57:16,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981963417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:16,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:16,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:16,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585123270] [2022-01-18 17:57:16,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:16,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:16,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:16,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:16,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:16,416 INFO L87 Difference]: Start difference. First operand 7016 states and 24436 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:18,139 INFO L93 Difference]: Finished difference Result 10732 states and 36773 transitions. [2022-01-18 17:57:18,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 17:57:18,139 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:18,160 INFO L225 Difference]: With dead ends: 10732 [2022-01-18 17:57:18,160 INFO L226 Difference]: Without dead ends: 10686 [2022-01-18 17:57:18,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=356, Invalid=3550, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 17:57:18,161 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 440 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 3023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:18,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 2344 Invalid, 3023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:57:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2022-01-18 17:57:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 7020. [2022-01-18 17:57:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4825473714204302) internal successors, (24444), 7019 states have internal predecessors, (24444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:18,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24444 transitions. [2022-01-18 17:57:18,280 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24444 transitions. Word has length 39 [2022-01-18 17:57:18,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:18,280 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24444 transitions. [2022-01-18 17:57:18,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:18,280 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24444 transitions. [2022-01-18 17:57:18,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:18,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:18,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:18,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 17:57:18,291 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:18,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:18,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1456019612, now seen corresponding path program 177 times [2022-01-18 17:57:18,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:18,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863700111] [2022-01-18 17:57:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:18,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:18,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:18,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863700111] [2022-01-18 17:57:18,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863700111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:18,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:18,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:18,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696553391] [2022-01-18 17:57:18,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:18,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:18,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:18,495 INFO L87 Difference]: Start difference. First operand 7020 states and 24444 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:20,133 INFO L93 Difference]: Finished difference Result 9720 states and 33271 transitions. [2022-01-18 17:57:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 17:57:20,133 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:20,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:20,152 INFO L225 Difference]: With dead ends: 9720 [2022-01-18 17:57:20,153 INFO L226 Difference]: Without dead ends: 9667 [2022-01-18 17:57:20,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=343, Invalid=3197, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:57:20,153 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 426 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:20,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 2107 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2022-01-18 17:57:20,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 7010. [2022-01-18 17:57:20,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 7009 states have (on average 3.484805250392353) internal successors, (24425), 7009 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 24425 transitions. [2022-01-18 17:57:20,266 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 24425 transitions. Word has length 39 [2022-01-18 17:57:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:20,267 INFO L470 AbstractCegarLoop]: Abstraction has 7010 states and 24425 transitions. [2022-01-18 17:57:20,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:20,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 24425 transitions. [2022-01-18 17:57:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:20,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:20,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:20,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 17:57:20,277 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:20,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:20,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1380408388, now seen corresponding path program 178 times [2022-01-18 17:57:20,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:20,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557324219] [2022-01-18 17:57:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:20,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:20,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:20,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:20,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557324219] [2022-01-18 17:57:20,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557324219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:20,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:20,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:20,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722927934] [2022-01-18 17:57:20,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:20,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:20,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:20,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:20,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:20,482 INFO L87 Difference]: Start difference. First operand 7010 states and 24425 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:22,017 INFO L93 Difference]: Finished difference Result 9511 states and 32733 transitions. [2022-01-18 17:57:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:57:22,017 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:22,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:22,036 INFO L225 Difference]: With dead ends: 9511 [2022-01-18 17:57:22,036 INFO L226 Difference]: Without dead ends: 9444 [2022-01-18 17:57:22,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 17:57:22,037 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 414 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:22,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2097 Invalid, 2884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2829 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:57:22,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9444 states. [2022-01-18 17:57:22,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9444 to 7028. [2022-01-18 17:57:22,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7028 states, 7027 states have (on average 3.481855699444998) internal successors, (24467), 7027 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:22,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7028 states to 7028 states and 24467 transitions. [2022-01-18 17:57:22,152 INFO L78 Accepts]: Start accepts. Automaton has 7028 states and 24467 transitions. Word has length 39 [2022-01-18 17:57:22,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:22,152 INFO L470 AbstractCegarLoop]: Abstraction has 7028 states and 24467 transitions. [2022-01-18 17:57:22,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:22,152 INFO L276 IsEmpty]: Start isEmpty. Operand 7028 states and 24467 transitions. [2022-01-18 17:57:22,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:22,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:22,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:22,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 17:57:22,162 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:22,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:22,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1022338180, now seen corresponding path program 179 times [2022-01-18 17:57:22,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:22,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424810365] [2022-01-18 17:57:22,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:22,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:22,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:22,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424810365] [2022-01-18 17:57:22,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424810365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:22,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:22,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:22,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689049280] [2022-01-18 17:57:22,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:22,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:22,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:22,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:22,364 INFO L87 Difference]: Start difference. First operand 7028 states and 24467 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:23,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:23,795 INFO L93 Difference]: Finished difference Result 9477 states and 32620 transitions. [2022-01-18 17:57:23,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:57:23,796 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:23,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:23,815 INFO L225 Difference]: With dead ends: 9477 [2022-01-18 17:57:23,815 INFO L226 Difference]: Without dead ends: 9434 [2022-01-18 17:57:23,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=2489, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 17:57:23,815 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 396 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:23,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1929 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9434 states. [2022-01-18 17:57:23,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9434 to 7046. [2022-01-18 17:57:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 3.4784953867991484) internal successors, (24506), 7045 states have internal predecessors, (24506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 24506 transitions. [2022-01-18 17:57:23,926 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 24506 transitions. Word has length 39 [2022-01-18 17:57:23,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:23,926 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 24506 transitions. [2022-01-18 17:57:23,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 24506 transitions. [2022-01-18 17:57:23,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:23,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:23,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:23,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 17:57:23,937 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:23,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:23,937 INFO L85 PathProgramCache]: Analyzing trace with hash -192807010, now seen corresponding path program 180 times [2022-01-18 17:57:23,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:23,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902028098] [2022-01-18 17:57:23,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:23,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:24,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:24,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902028098] [2022-01-18 17:57:24,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902028098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:24,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:24,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:24,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439485245] [2022-01-18 17:57:24,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:24,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:24,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:24,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:24,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:24,142 INFO L87 Difference]: Start difference. First operand 7046 states and 24506 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:25,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:25,551 INFO L93 Difference]: Finished difference Result 9411 states and 32458 transitions. [2022-01-18 17:57:25,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 17:57:25,551 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:25,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:25,569 INFO L225 Difference]: With dead ends: 9411 [2022-01-18 17:57:25,570 INFO L226 Difference]: Without dead ends: 9348 [2022-01-18 17:57:25,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2490, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 17:57:25,570 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 413 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:25,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1907 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:25,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2022-01-18 17:57:25,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 7028. [2022-01-18 17:57:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7028 states, 7027 states have (on average 3.4810018500071154) internal successors, (24461), 7027 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7028 states to 7028 states and 24461 transitions. [2022-01-18 17:57:25,678 INFO L78 Accepts]: Start accepts. Automaton has 7028 states and 24461 transitions. Word has length 39 [2022-01-18 17:57:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:25,678 INFO L470 AbstractCegarLoop]: Abstraction has 7028 states and 24461 transitions. [2022-01-18 17:57:25,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:25,678 INFO L276 IsEmpty]: Start isEmpty. Operand 7028 states and 24461 transitions. [2022-01-18 17:57:25,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:25,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:25,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:25,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 17:57:25,689 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:25,689 INFO L85 PathProgramCache]: Analyzing trace with hash 605966874, now seen corresponding path program 181 times [2022-01-18 17:57:25,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:25,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507488901] [2022-01-18 17:57:25,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:25,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:25,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:25,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:25,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507488901] [2022-01-18 17:57:25,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507488901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:25,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:25,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:25,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345567905] [2022-01-18 17:57:25,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:25,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:25,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:25,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:25,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:25,892 INFO L87 Difference]: Start difference. First operand 7028 states and 24461 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:28,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:28,079 INFO L93 Difference]: Finished difference Result 10516 states and 36140 transitions. [2022-01-18 17:57:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-18 17:57:28,079 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:28,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:28,100 INFO L225 Difference]: With dead ends: 10516 [2022-01-18 17:57:28,100 INFO L226 Difference]: Without dead ends: 10473 [2022-01-18 17:57:28,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1940 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=523, Invalid=5957, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 17:57:28,101 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 532 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 3126 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 3126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:28,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 2178 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 3126 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:57:28,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10473 states. [2022-01-18 17:57:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10473 to 7034. [2022-01-18 17:57:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 7033 states have (on average 3.4811602445613534) internal successors, (24483), 7033 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 24483 transitions. [2022-01-18 17:57:28,221 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 24483 transitions. Word has length 39 [2022-01-18 17:57:28,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:28,221 INFO L470 AbstractCegarLoop]: Abstraction has 7034 states and 24483 transitions. [2022-01-18 17:57:28,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:28,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 24483 transitions. [2022-01-18 17:57:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:28,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:28,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:28,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 17:57:28,232 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:28,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:28,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1174631428, now seen corresponding path program 182 times [2022-01-18 17:57:28,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:28,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580654484] [2022-01-18 17:57:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:28,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:28,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:28,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580654484] [2022-01-18 17:57:28,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580654484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:28,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:28,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:28,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529329303] [2022-01-18 17:57:28,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:28,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:28,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:28,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:28,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:28,434 INFO L87 Difference]: Start difference. First operand 7034 states and 24483 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:30,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:30,872 INFO L93 Difference]: Finished difference Result 11758 states and 40313 transitions. [2022-01-18 17:57:30,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-18 17:57:30,872 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:30,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:30,894 INFO L225 Difference]: With dead ends: 11758 [2022-01-18 17:57:30,895 INFO L226 Difference]: Without dead ends: 11706 [2022-01-18 17:57:30,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2400 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=565, Invalid=7091, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 17:57:30,895 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 563 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:30,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 2626 Invalid, 3609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 17:57:30,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11706 states. [2022-01-18 17:57:30,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11706 to 7027. [2022-01-18 17:57:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 7026 states have (on average 3.480927981781953) internal successors, (24457), 7026 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 24457 transitions. [2022-01-18 17:57:31,017 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 24457 transitions. Word has length 39 [2022-01-18 17:57:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:31,017 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 24457 transitions. [2022-01-18 17:57:31,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:31,017 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 24457 transitions. [2022-01-18 17:57:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:31,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:31,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:31,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 17:57:31,028 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:31,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:31,028 INFO L85 PathProgramCache]: Analyzing trace with hash -931452356, now seen corresponding path program 183 times [2022-01-18 17:57:31,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:31,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366231966] [2022-01-18 17:57:31,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:31,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:31,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:31,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366231966] [2022-01-18 17:57:31,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366231966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:31,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:31,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:31,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817304095] [2022-01-18 17:57:31,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:31,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:31,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:31,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:31,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:31,228 INFO L87 Difference]: Start difference. First operand 7027 states and 24457 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:32,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:32,644 INFO L93 Difference]: Finished difference Result 9525 states and 32721 transitions. [2022-01-18 17:57:32,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 17:57:32,645 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:32,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:32,663 INFO L225 Difference]: With dead ends: 9525 [2022-01-18 17:57:32,664 INFO L226 Difference]: Without dead ends: 9482 [2022-01-18 17:57:32,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=2585, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:57:32,664 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 407 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:32,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1906 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:32,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9482 states. [2022-01-18 17:57:32,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9482 to 7036. [2022-01-18 17:57:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 3.4794598436389483) internal successors, (24478), 7035 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 24478 transitions. [2022-01-18 17:57:32,789 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 24478 transitions. Word has length 39 [2022-01-18 17:57:32,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:32,789 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 24478 transitions. [2022-01-18 17:57:32,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 24478 transitions. [2022-01-18 17:57:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:32,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:32,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:32,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 17:57:32,801 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:32,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:32,801 INFO L85 PathProgramCache]: Analyzing trace with hash 818654780, now seen corresponding path program 184 times [2022-01-18 17:57:32,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:32,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675289132] [2022-01-18 17:57:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:32,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:33,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:33,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675289132] [2022-01-18 17:57:33,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675289132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:33,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:33,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:33,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891744247] [2022-01-18 17:57:33,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:33,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:33,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:33,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:33,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:33,008 INFO L87 Difference]: Start difference. First operand 7036 states and 24478 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:34,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:34,483 INFO L93 Difference]: Finished difference Result 9473 states and 32596 transitions. [2022-01-18 17:57:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 17:57:34,484 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:34,502 INFO L225 Difference]: With dead ends: 9473 [2022-01-18 17:57:34,502 INFO L226 Difference]: Without dead ends: 9422 [2022-01-18 17:57:34,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=284, Invalid=2686, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 17:57:34,502 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 412 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 2657 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:34,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1913 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2657 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:34,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9422 states. [2022-01-18 17:57:34,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9422 to 7030. [2022-01-18 17:57:34,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7030 states, 7029 states have (on average 3.480153649167734) internal successors, (24462), 7029 states have internal predecessors, (24462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:34,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7030 states to 7030 states and 24462 transitions. [2022-01-18 17:57:34,608 INFO L78 Accepts]: Start accepts. Automaton has 7030 states and 24462 transitions. Word has length 39 [2022-01-18 17:57:34,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:34,608 INFO L470 AbstractCegarLoop]: Abstraction has 7030 states and 24462 transitions. [2022-01-18 17:57:34,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:34,608 INFO L276 IsEmpty]: Start isEmpty. Operand 7030 states and 24462 transitions. [2022-01-18 17:57:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:34,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:34,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:34,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 17:57:34,618 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:34,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:34,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1435873182, now seen corresponding path program 185 times [2022-01-18 17:57:34,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:34,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465292359] [2022-01-18 17:57:34,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:34,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:34,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:34,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:34,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465292359] [2022-01-18 17:57:34,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465292359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:34,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:34,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:34,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564530169] [2022-01-18 17:57:34,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:34,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:34,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:34,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:34,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:34,819 INFO L87 Difference]: Start difference. First operand 7030 states and 24462 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:36,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:36,482 INFO L93 Difference]: Finished difference Result 10649 states and 36563 transitions. [2022-01-18 17:57:36,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 17:57:36,482 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:36,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:36,503 INFO L225 Difference]: With dead ends: 10649 [2022-01-18 17:57:36,503 INFO L226 Difference]: Without dead ends: 10603 [2022-01-18 17:57:36,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=3117, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:57:36,504 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 422 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 3086 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:36,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2329 Invalid, 3135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3086 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:57:36,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-01-18 17:57:36,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 7037. [2022-01-18 17:57:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 7036 states have (on average 3.4788231949971573) internal successors, (24477), 7036 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:36,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 24477 transitions. [2022-01-18 17:57:36,622 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 24477 transitions. Word has length 39 [2022-01-18 17:57:36,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:36,622 INFO L470 AbstractCegarLoop]: Abstraction has 7037 states and 24477 transitions. [2022-01-18 17:57:36,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:36,623 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 24477 transitions. [2022-01-18 17:57:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:36,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:36,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:36,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 17:57:36,633 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:36,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:36,633 INFO L85 PathProgramCache]: Analyzing trace with hash 805692, now seen corresponding path program 186 times [2022-01-18 17:57:36,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:36,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337412431] [2022-01-18 17:57:36,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:36,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:36,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:36,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337412431] [2022-01-18 17:57:36,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337412431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:36,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:36,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:36,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672392349] [2022-01-18 17:57:36,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:36,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:36,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:36,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:36,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:36,832 INFO L87 Difference]: Start difference. First operand 7037 states and 24477 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:38,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:38,285 INFO L93 Difference]: Finished difference Result 9405 states and 32431 transitions. [2022-01-18 17:57:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:57:38,286 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:38,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:38,305 INFO L225 Difference]: With dead ends: 9405 [2022-01-18 17:57:38,305 INFO L226 Difference]: Without dead ends: 9338 [2022-01-18 17:57:38,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=2587, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:57:38,305 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 406 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:38,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 1907 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:38,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9338 states. [2022-01-18 17:57:38,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9338 to 7021. [2022-01-18 17:57:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.4821937321937324) internal successors, (24445), 7020 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24445 transitions. [2022-01-18 17:57:38,417 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24445 transitions. Word has length 39 [2022-01-18 17:57:38,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:38,417 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24445 transitions. [2022-01-18 17:57:38,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:38,417 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24445 transitions. [2022-01-18 17:57:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:38,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:38,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:38,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 17:57:38,427 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:38,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2008602846, now seen corresponding path program 187 times [2022-01-18 17:57:38,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:38,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121809933] [2022-01-18 17:57:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:38,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:38,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:38,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121809933] [2022-01-18 17:57:38,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121809933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:38,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:38,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:38,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416245330] [2022-01-18 17:57:38,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:38,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:38,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:38,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:38,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:38,631 INFO L87 Difference]: Start difference. First operand 7021 states and 24445 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:40,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:40,047 INFO L93 Difference]: Finished difference Result 9501 states and 32677 transitions. [2022-01-18 17:57:40,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 17:57:40,047 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:40,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:40,067 INFO L225 Difference]: With dead ends: 9501 [2022-01-18 17:57:40,067 INFO L226 Difference]: Without dead ends: 9438 [2022-01-18 17:57:40,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=2583, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:57:40,068 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 387 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:40,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1934 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2022-01-18 17:57:40,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 7025. [2022-01-18 17:57:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.481634396355353) internal successors, (24455), 7024 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24455 transitions. [2022-01-18 17:57:40,178 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24455 transitions. Word has length 39 [2022-01-18 17:57:40,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:40,178 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24455 transitions. [2022-01-18 17:57:40,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:40,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24455 transitions. [2022-01-18 17:57:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:40,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:40,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:40,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 17:57:40,189 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:40,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1763110748, now seen corresponding path program 188 times [2022-01-18 17:57:40,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:40,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986877379] [2022-01-18 17:57:40,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:40,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:40,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:40,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986877379] [2022-01-18 17:57:40,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986877379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:40,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:40,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:40,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684336147] [2022-01-18 17:57:40,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:40,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:40,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:40,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:40,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:40,393 INFO L87 Difference]: Start difference. First operand 7025 states and 24455 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:41,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:41,817 INFO L93 Difference]: Finished difference Result 9554 states and 32803 transitions. [2022-01-18 17:57:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 17:57:41,817 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:41,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:41,836 INFO L225 Difference]: With dead ends: 9554 [2022-01-18 17:57:41,836 INFO L226 Difference]: Without dead ends: 9511 [2022-01-18 17:57:41,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2490, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 17:57:41,836 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 402 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 2680 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:41,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 1930 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2680 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9511 states. [2022-01-18 17:57:41,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9511 to 7043. [2022-01-18 17:57:41,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 7042 states have (on average 3.478273217835842) internal successors, (24494), 7042 states have internal predecessors, (24494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:41,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 24494 transitions. [2022-01-18 17:57:41,948 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 24494 transitions. Word has length 39 [2022-01-18 17:57:41,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:41,948 INFO L470 AbstractCegarLoop]: Abstraction has 7043 states and 24494 transitions. [2022-01-18 17:57:41,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:41,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 24494 transitions. [2022-01-18 17:57:41,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:41,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:41,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:41,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 17:57:41,959 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:41,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:41,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1702325378, now seen corresponding path program 189 times [2022-01-18 17:57:41,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:41,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306740138] [2022-01-18 17:57:41,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:41,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:42,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:42,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306740138] [2022-01-18 17:57:42,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306740138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:42,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:42,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:42,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678176744] [2022-01-18 17:57:42,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:42,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:42,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:42,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:42,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:42,163 INFO L87 Difference]: Start difference. First operand 7043 states and 24494 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:43,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:43,575 INFO L93 Difference]: Finished difference Result 9423 states and 32487 transitions. [2022-01-18 17:57:43,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 17:57:43,575 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:43,594 INFO L225 Difference]: With dead ends: 9423 [2022-01-18 17:57:43,594 INFO L226 Difference]: Without dead ends: 9360 [2022-01-18 17:57:43,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:57:43,595 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 390 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 2690 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:43,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1952 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:43,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9360 states. [2022-01-18 17:57:43,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9360 to 7025. [2022-01-18 17:57:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.4810649202733486) internal successors, (24451), 7024 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24451 transitions. [2022-01-18 17:57:43,704 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24451 transitions. Word has length 39 [2022-01-18 17:57:43,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:43,704 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24451 transitions. [2022-01-18 17:57:43,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:43,704 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24451 transitions. [2022-01-18 17:57:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:43,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:43,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:43,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 17:57:43,715 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:43,715 INFO L85 PathProgramCache]: Analyzing trace with hash 579406110, now seen corresponding path program 190 times [2022-01-18 17:57:43,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:43,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084204143] [2022-01-18 17:57:43,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:43,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:43,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:43,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084204143] [2022-01-18 17:57:43,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084204143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:43,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:43,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:43,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352921612] [2022-01-18 17:57:43,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:43,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:43,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:43,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:43,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:43,919 INFO L87 Difference]: Start difference. First operand 7025 states and 24451 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:45,394 INFO L93 Difference]: Finished difference Result 9507 states and 32702 transitions. [2022-01-18 17:57:45,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 17:57:45,394 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:45,414 INFO L225 Difference]: With dead ends: 9507 [2022-01-18 17:57:45,414 INFO L226 Difference]: Without dead ends: 9452 [2022-01-18 17:57:45,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=2887, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 17:57:45,414 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 407 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:45,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1926 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2022-01-18 17:57:45,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 7027. [2022-01-18 17:57:45,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 7026 states have (on average 3.4807856532877883) internal successors, (24456), 7026 states have internal predecessors, (24456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 24456 transitions. [2022-01-18 17:57:45,526 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 24456 transitions. Word has length 39 [2022-01-18 17:57:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:45,526 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 24456 transitions. [2022-01-18 17:57:45,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 24456 transitions. [2022-01-18 17:57:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:45,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:45,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:45,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 17:57:45,536 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:45,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:45,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1916464124, now seen corresponding path program 191 times [2022-01-18 17:57:45,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:45,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971192666] [2022-01-18 17:57:45,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:45,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:45,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:45,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971192666] [2022-01-18 17:57:45,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971192666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:45,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:45,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:45,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498976443] [2022-01-18 17:57:45,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:45,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:45,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:45,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:45,734 INFO L87 Difference]: Start difference. First operand 7027 states and 24456 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:47,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:47,141 INFO L93 Difference]: Finished difference Result 9483 states and 32632 transitions. [2022-01-18 17:57:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 17:57:47,142 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:47,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:47,160 INFO L225 Difference]: With dead ends: 9483 [2022-01-18 17:57:47,160 INFO L226 Difference]: Without dead ends: 9440 [2022-01-18 17:57:47,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=281, Invalid=2689, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 17:57:47,161 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 397 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 2636 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:47,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1910 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2636 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:47,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9440 states. [2022-01-18 17:57:47,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9440 to 7033. [2022-01-18 17:57:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7033 states, 7032 states have (on average 3.4796643913538112) internal successors, (24469), 7032 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7033 states to 7033 states and 24469 transitions. [2022-01-18 17:57:47,270 INFO L78 Accepts]: Start accepts. Automaton has 7033 states and 24469 transitions. Word has length 39 [2022-01-18 17:57:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:47,271 INFO L470 AbstractCegarLoop]: Abstraction has 7033 states and 24469 transitions. [2022-01-18 17:57:47,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 7033 states and 24469 transitions. [2022-01-18 17:57:47,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:47,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:47,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:47,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 17:57:47,281 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:47,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:47,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1645044574, now seen corresponding path program 192 times [2022-01-18 17:57:47,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:47,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568591376] [2022-01-18 17:57:47,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:47,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:47,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:47,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568591376] [2022-01-18 17:57:47,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568591376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:47,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:47,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:47,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906292443] [2022-01-18 17:57:47,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:47,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:47,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:47,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:47,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:47,486 INFO L87 Difference]: Start difference. First operand 7033 states and 24469 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:48,919 INFO L93 Difference]: Finished difference Result 9417 states and 32470 transitions. [2022-01-18 17:57:48,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 17:57:48,920 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:48,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:48,938 INFO L225 Difference]: With dead ends: 9417 [2022-01-18 17:57:48,938 INFO L226 Difference]: Without dead ends: 9356 [2022-01-18 17:57:48,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=2595, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:57:48,939 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 387 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:48,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1937 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2692 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:48,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9356 states. [2022-01-18 17:57:49,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9356 to 7021. [2022-01-18 17:57:49,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.481908831908832) internal successors, (24443), 7020 states have internal predecessors, (24443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:49,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24443 transitions. [2022-01-18 17:57:49,047 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24443 transitions. Word has length 39 [2022-01-18 17:57:49,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:49,047 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24443 transitions. [2022-01-18 17:57:49,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:49,048 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24443 transitions. [2022-01-18 17:57:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:49,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:49,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:49,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 17:57:49,058 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:49,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1546889360, now seen corresponding path program 193 times [2022-01-18 17:57:49,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:49,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368822320] [2022-01-18 17:57:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:49,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:49,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:49,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368822320] [2022-01-18 17:57:49,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368822320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:49,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:49,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:49,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967193373] [2022-01-18 17:57:49,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:49,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:49,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:49,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:49,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:49,258 INFO L87 Difference]: Start difference. First operand 7021 states and 24443 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:50,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:50,885 INFO L93 Difference]: Finished difference Result 9607 states and 32929 transitions. [2022-01-18 17:57:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 17:57:50,885 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:50,904 INFO L225 Difference]: With dead ends: 9607 [2022-01-18 17:57:50,905 INFO L226 Difference]: Without dead ends: 9552 [2022-01-18 17:57:50,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=373, Invalid=3533, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 17:57:50,905 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 419 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:50,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 1936 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9552 states. [2022-01-18 17:57:50,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9552 to 7026. [2022-01-18 17:57:51,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 7025 states have (on average 3.4811387900355872) internal successors, (24455), 7025 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:51,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 24455 transitions. [2022-01-18 17:57:51,018 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 24455 transitions. Word has length 39 [2022-01-18 17:57:51,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:51,018 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 24455 transitions. [2022-01-18 17:57:51,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:51,019 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 24455 transitions. [2022-01-18 17:57:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:51,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:51,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:51,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 17:57:51,029 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:51,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:51,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1575425714, now seen corresponding path program 194 times [2022-01-18 17:57:51,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:51,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496489795] [2022-01-18 17:57:51,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:51,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:51,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:51,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496489795] [2022-01-18 17:57:51,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496489795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:51,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:51,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:51,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957594504] [2022-01-18 17:57:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:51,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:51,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:51,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:51,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:51,248 INFO L87 Difference]: Start difference. First operand 7026 states and 24455 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:53,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:53,009 INFO L93 Difference]: Finished difference Result 10787 states and 36895 transitions. [2022-01-18 17:57:53,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 17:57:53,009 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:53,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:53,030 INFO L225 Difference]: With dead ends: 10787 [2022-01-18 17:57:53,030 INFO L226 Difference]: Without dead ends: 10741 [2022-01-18 17:57:53,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=370, Invalid=3790, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 17:57:53,031 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 452 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:53,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 2359 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:57:53,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10741 states. [2022-01-18 17:57:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10741 to 7032. [2022-01-18 17:57:53,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7032 states, 7031 states have (on average 3.4803015218318873) internal successors, (24470), 7031 states have internal predecessors, (24470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:53,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7032 states to 7032 states and 24470 transitions. [2022-01-18 17:57:53,151 INFO L78 Accepts]: Start accepts. Automaton has 7032 states and 24470 transitions. Word has length 39 [2022-01-18 17:57:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:53,151 INFO L470 AbstractCegarLoop]: Abstraction has 7032 states and 24470 transitions. [2022-01-18 17:57:53,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:53,151 INFO L276 IsEmpty]: Start isEmpty. Operand 7032 states and 24470 transitions. [2022-01-18 17:57:53,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:53,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:53,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:53,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 17:57:53,162 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:53,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:53,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1822891876, now seen corresponding path program 195 times [2022-01-18 17:57:53,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:53,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964900027] [2022-01-18 17:57:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:53,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:53,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:53,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964900027] [2022-01-18 17:57:53,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964900027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:53,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:53,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:53,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190770733] [2022-01-18 17:57:53,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:53,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:53,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:53,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:53,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:53,370 INFO L87 Difference]: Start difference. First operand 7032 states and 24470 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:54,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:54,970 INFO L93 Difference]: Finished difference Result 9709 states and 33233 transitions. [2022-01-18 17:57:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 17:57:54,970 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:54,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:54,989 INFO L225 Difference]: With dead ends: 9709 [2022-01-18 17:57:54,989 INFO L226 Difference]: Without dead ends: 9664 [2022-01-18 17:57:54,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=335, Invalid=3205, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:57:54,990 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 414 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 2799 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:54,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2084 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2799 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:54,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9664 states. [2022-01-18 17:57:55,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9664 to 7030. [2022-01-18 17:57:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7030 states, 7029 states have (on average 3.48072272015934) internal successors, (24466), 7029 states have internal predecessors, (24466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7030 states to 7030 states and 24466 transitions. [2022-01-18 17:57:55,129 INFO L78 Accepts]: Start accepts. Automaton has 7030 states and 24466 transitions. Word has length 39 [2022-01-18 17:57:55,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:55,129 INFO L470 AbstractCegarLoop]: Abstraction has 7030 states and 24466 transitions. [2022-01-18 17:57:55,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 7030 states and 24466 transitions. [2022-01-18 17:57:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:55,139 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:55,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:55,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 17:57:55,140 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:55,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:55,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1643170594, now seen corresponding path program 196 times [2022-01-18 17:57:55,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:55,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615704725] [2022-01-18 17:57:55,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:55,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:55,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:55,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615704725] [2022-01-18 17:57:55,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615704725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:55,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:55,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:55,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960764847] [2022-01-18 17:57:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:55,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:55,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:55,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:55,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:55,336 INFO L87 Difference]: Start difference. First operand 7030 states and 24466 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:56,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:56,879 INFO L93 Difference]: Finished difference Result 9613 states and 32941 transitions. [2022-01-18 17:57:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 17:57:56,879 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:56,898 INFO L225 Difference]: With dead ends: 9613 [2022-01-18 17:57:56,898 INFO L226 Difference]: Without dead ends: 9570 [2022-01-18 17:57:56,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=332, Invalid=3208, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:57:56,899 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 427 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:56,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1933 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:56,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9570 states. [2022-01-18 17:57:56,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9570 to 7039. [2022-01-18 17:57:56,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.4792554703040635) internal successors, (24487), 7038 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:57,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24487 transitions. [2022-01-18 17:57:57,009 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24487 transitions. Word has length 39 [2022-01-18 17:57:57,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:57,009 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24487 transitions. [2022-01-18 17:57:57,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:57,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24487 transitions. [2022-01-18 17:57:57,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:57,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:57,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:57,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 17:57:57,019 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:57,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:57,020 INFO L85 PathProgramCache]: Analyzing trace with hash 106936542, now seen corresponding path program 197 times [2022-01-18 17:57:57,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:57,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758652045] [2022-01-18 17:57:57,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:57,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:57,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:57,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758652045] [2022-01-18 17:57:57,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758652045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:57,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:57,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:57,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124349589] [2022-01-18 17:57:57,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:57,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:57,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:57,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:57,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:57,219 INFO L87 Difference]: Start difference. First operand 7039 states and 24487 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:57:58,729 INFO L93 Difference]: Finished difference Result 9563 states and 32817 transitions. [2022-01-18 17:57:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 17:57:58,730 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:57:58,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:57:58,780 INFO L225 Difference]: With dead ends: 9563 [2022-01-18 17:57:58,780 INFO L226 Difference]: Without dead ends: 9512 [2022-01-18 17:57:58,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=307, Invalid=2999, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 17:57:58,780 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 414 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:57:58,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1942 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:57:58,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9512 states. [2022-01-18 17:57:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9512 to 7039. [2022-01-18 17:57:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.478829212844558) internal successors, (24484), 7038 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:58,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24484 transitions. [2022-01-18 17:57:58,879 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24484 transitions. Word has length 39 [2022-01-18 17:57:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:57:58,879 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24484 transitions. [2022-01-18 17:57:58,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:57:58,879 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24484 transitions. [2022-01-18 17:57:58,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:57:58,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:57:58,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:57:58,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 17:57:58,889 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:57:58,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:57:58,890 INFO L85 PathProgramCache]: Analyzing trace with hash 724154944, now seen corresponding path program 198 times [2022-01-18 17:57:58,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:57:58,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874308952] [2022-01-18 17:57:58,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:57:58,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:57:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:57:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:57:59,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:57:59,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874308952] [2022-01-18 17:57:59,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874308952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:57:59,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:57:59,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:57:59,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965330251] [2022-01-18 17:57:59,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:57:59,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:57:59,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:57:59,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:57:59,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:57:59,086 INFO L87 Difference]: Start difference. First operand 7039 states and 24484 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:00,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:00,830 INFO L93 Difference]: Finished difference Result 10790 states and 36899 transitions. [2022-01-18 17:58:00,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 17:58:00,830 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:00,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:00,852 INFO L225 Difference]: With dead ends: 10790 [2022-01-18 17:58:00,852 INFO L226 Difference]: Without dead ends: 10744 [2022-01-18 17:58:00,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=342, Invalid=3564, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 17:58:00,852 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 441 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 3134 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 3194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:00,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 2358 Invalid, 3194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3134 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:58:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10744 states. [2022-01-18 17:58:00,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10744 to 7046. [2022-01-18 17:58:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 3.4775017743080197) internal successors, (24499), 7045 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 24499 transitions. [2022-01-18 17:58:00,973 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 24499 transitions. Word has length 39 [2022-01-18 17:58:00,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:00,973 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 24499 transitions. [2022-01-18 17:58:00,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:00,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 24499 transitions. [2022-01-18 17:58:00,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:00,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:00,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:00,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 17:58:00,984 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:00,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:00,984 INFO L85 PathProgramCache]: Analyzing trace with hash -710912546, now seen corresponding path program 199 times [2022-01-18 17:58:00,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:00,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106229956] [2022-01-18 17:58:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:00,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:01,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:01,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106229956] [2022-01-18 17:58:01,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106229956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:01,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:01,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:01,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454382103] [2022-01-18 17:58:01,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:01,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:01,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:01,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:01,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:01,183 INFO L87 Difference]: Start difference. First operand 7046 states and 24499 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:02,701 INFO L93 Difference]: Finished difference Result 9549 states and 32770 transitions. [2022-01-18 17:58:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 17:58:02,701 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:02,719 INFO L225 Difference]: With dead ends: 9549 [2022-01-18 17:58:02,719 INFO L226 Difference]: Without dead ends: 9494 [2022-01-18 17:58:02,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=2895, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 17:58:02,720 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 421 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 2766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:02,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1924 Invalid, 2766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:02,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-01-18 17:58:02,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 7043. [2022-01-18 17:58:02,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 7042 states have (on average 3.478131212723658) internal successors, (24493), 7042 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 24493 transitions. [2022-01-18 17:58:02,825 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 24493 transitions. Word has length 39 [2022-01-18 17:58:02,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:02,825 INFO L470 AbstractCegarLoop]: Abstraction has 7043 states and 24493 transitions. [2022-01-18 17:58:02,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:02,825 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 24493 transitions. [2022-01-18 17:58:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:02,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:02,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:02,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 17:58:02,835 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:02,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1993615664, now seen corresponding path program 200 times [2022-01-18 17:58:02,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:02,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956329219] [2022-01-18 17:58:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:02,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:03,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:03,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956329219] [2022-01-18 17:58:03,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956329219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:03,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:03,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:03,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612267991] [2022-01-18 17:58:03,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:03,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:03,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:03,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:03,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:03,033 INFO L87 Difference]: Start difference. First operand 7043 states and 24493 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:04,541 INFO L93 Difference]: Finished difference Result 9533 states and 32730 transitions. [2022-01-18 17:58:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 17:58:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:04,559 INFO L225 Difference]: With dead ends: 9533 [2022-01-18 17:58:04,560 INFO L226 Difference]: Without dead ends: 9476 [2022-01-18 17:58:04,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 17:58:04,560 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 416 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2746 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:04,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 1945 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2746 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:04,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9476 states. [2022-01-18 17:58:04,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9476 to 7035. [2022-01-18 17:58:04,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7035 states, 7034 states have (on average 3.4793858402047197) internal successors, (24474), 7034 states have internal predecessors, (24474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:04,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7035 states to 7035 states and 24474 transitions. [2022-01-18 17:58:04,670 INFO L78 Accepts]: Start accepts. Automaton has 7035 states and 24474 transitions. Word has length 39 [2022-01-18 17:58:04,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:04,670 INFO L470 AbstractCegarLoop]: Abstraction has 7035 states and 24474 transitions. [2022-01-18 17:58:04,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:04,670 INFO L276 IsEmpty]: Start isEmpty. Operand 7035 states and 24474 transitions. [2022-01-18 17:58:04,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:04,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:04,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:04,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 17:58:04,680 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:04,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1252884038, now seen corresponding path program 201 times [2022-01-18 17:58:04,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:04,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288592196] [2022-01-18 17:58:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:04,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:04,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:04,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288592196] [2022-01-18 17:58:04,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288592196] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:04,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:04,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:04,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150816331] [2022-01-18 17:58:04,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:04,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:04,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:04,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:04,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:04,879 INFO L87 Difference]: Start difference. First operand 7035 states and 24474 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:06,532 INFO L93 Difference]: Finished difference Result 9876 states and 33881 transitions. [2022-01-18 17:58:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 17:58:06,532 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:06,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:06,551 INFO L225 Difference]: With dead ends: 9876 [2022-01-18 17:58:06,551 INFO L226 Difference]: Without dead ends: 9833 [2022-01-18 17:58:06,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=322, Invalid=3218, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:58:06,552 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 425 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:06,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 2243 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2935 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:58:06,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2022-01-18 17:58:06,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 7031. [2022-01-18 17:58:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7031 states, 7030 states have (on average 3.4799431009957327) internal successors, (24464), 7030 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7031 states to 7031 states and 24464 transitions. [2022-01-18 17:58:06,662 INFO L78 Accepts]: Start accepts. Automaton has 7031 states and 24464 transitions. Word has length 39 [2022-01-18 17:58:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:06,662 INFO L470 AbstractCegarLoop]: Abstraction has 7031 states and 24464 transitions. [2022-01-18 17:58:06,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7031 states and 24464 transitions. [2022-01-18 17:58:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:06,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:06,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:06,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 17:58:06,672 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:06,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:06,672 INFO L85 PathProgramCache]: Analyzing trace with hash 583873452, now seen corresponding path program 202 times [2022-01-18 17:58:06,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:06,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3257562] [2022-01-18 17:58:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:06,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:06,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:06,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3257562] [2022-01-18 17:58:06,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3257562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:06,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:06,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:06,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282577720] [2022-01-18 17:58:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:06,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:06,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:06,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:06,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:06,879 INFO L87 Difference]: Start difference. First operand 7031 states and 24464 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:08,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:08,413 INFO L93 Difference]: Finished difference Result 9712 states and 33413 transitions. [2022-01-18 17:58:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 17:58:08,413 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:08,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:08,432 INFO L225 Difference]: With dead ends: 9712 [2022-01-18 17:58:08,433 INFO L226 Difference]: Without dead ends: 9649 [2022-01-18 17:58:08,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=304, Invalid=3002, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 17:58:08,433 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 416 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 2873 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:08,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 2095 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2873 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:08,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-01-18 17:58:08,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 7019. [2022-01-18 17:58:08,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.482331148475349) internal successors, (24439), 7018 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24439 transitions. [2022-01-18 17:58:08,543 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24439 transitions. Word has length 39 [2022-01-18 17:58:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:08,543 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24439 transitions. [2022-01-18 17:58:08,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24439 transitions. [2022-01-18 17:58:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:08,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:08,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:08,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 17:58:08,554 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:08,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:08,554 INFO L85 PathProgramCache]: Analyzing trace with hash -109091684, now seen corresponding path program 203 times [2022-01-18 17:58:08,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:08,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572646332] [2022-01-18 17:58:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:08,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:08,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:08,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572646332] [2022-01-18 17:58:08,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572646332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:08,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:08,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:08,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190101870] [2022-01-18 17:58:08,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:08,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:08,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:08,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:08,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:08,758 INFO L87 Difference]: Start difference. First operand 7019 states and 24439 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:10,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:10,005 INFO L93 Difference]: Finished difference Result 9263 states and 32060 transitions. [2022-01-18 17:58:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 17:58:10,006 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:10,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:10,025 INFO L225 Difference]: With dead ends: 9263 [2022-01-18 17:58:10,025 INFO L226 Difference]: Without dead ends: 9200 [2022-01-18 17:58:10,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 17:58:10,025 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 350 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:10,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1912 Invalid, 2536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9200 states. [2022-01-18 17:58:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9200 to 7051. [2022-01-18 17:58:10,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 7050 states have (on average 3.4784397163120566) internal successors, (24523), 7050 states have internal predecessors, (24523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:10,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 24523 transitions. [2022-01-18 17:58:10,133 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 24523 transitions. Word has length 39 [2022-01-18 17:58:10,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:10,134 INFO L470 AbstractCegarLoop]: Abstraction has 7051 states and 24523 transitions. [2022-01-18 17:58:10,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:10,134 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 24523 transitions. [2022-01-18 17:58:10,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:10,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:10,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:10,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 17:58:10,144 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:10,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:10,144 INFO L85 PathProgramCache]: Analyzing trace with hash -638992132, now seen corresponding path program 204 times [2022-01-18 17:58:10,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:10,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462118973] [2022-01-18 17:58:10,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:10,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:10,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:10,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:10,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462118973] [2022-01-18 17:58:10,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462118973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:10,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:10,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:10,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290772870] [2022-01-18 17:58:10,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:10,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:10,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:10,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:10,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:10,344 INFO L87 Difference]: Start difference. First operand 7051 states and 24523 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:11,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:11,570 INFO L93 Difference]: Finished difference Result 9246 states and 32034 transitions. [2022-01-18 17:58:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 17:58:11,571 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:11,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:11,589 INFO L225 Difference]: With dead ends: 9246 [2022-01-18 17:58:11,589 INFO L226 Difference]: Without dead ends: 9123 [2022-01-18 17:58:11,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:58:11,589 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 341 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:11,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 1950 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:11,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9123 states. [2022-01-18 17:58:11,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9123 to 7019. [2022-01-18 17:58:11,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.480051296665717) internal successors, (24423), 7018 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24423 transitions. [2022-01-18 17:58:11,696 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24423 transitions. Word has length 39 [2022-01-18 17:58:11,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:11,696 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24423 transitions. [2022-01-18 17:58:11,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:11,696 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24423 transitions. [2022-01-18 17:58:11,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:11,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:11,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:11,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 17:58:11,706 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:11,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:11,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1141454530, now seen corresponding path program 205 times [2022-01-18 17:58:11,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:11,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766309526] [2022-01-18 17:58:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:11,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:11,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:11,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766309526] [2022-01-18 17:58:11,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766309526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:11,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:11,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:11,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366515100] [2022-01-18 17:58:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:11,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:11,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:11,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:11,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:11,905 INFO L87 Difference]: Start difference. First operand 7019 states and 24423 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:13,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:13,184 INFO L93 Difference]: Finished difference Result 9306 states and 32141 transitions. [2022-01-18 17:58:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:58:13,184 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:13,202 INFO L225 Difference]: With dead ends: 9306 [2022-01-18 17:58:13,202 INFO L226 Difference]: Without dead ends: 9243 [2022-01-18 17:58:13,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:58:13,203 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 361 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:13,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1910 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:13,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9243 states. [2022-01-18 17:58:13,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9243 to 7019. [2022-01-18 17:58:13,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.479481333713309) internal successors, (24419), 7018 states have internal predecessors, (24419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:13,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24419 transitions. [2022-01-18 17:58:13,310 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24419 transitions. Word has length 39 [2022-01-18 17:58:13,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:13,310 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24419 transitions. [2022-01-18 17:58:13,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:13,310 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24419 transitions. [2022-01-18 17:58:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:13,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:13,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:13,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 17:58:13,320 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:13,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1386946628, now seen corresponding path program 206 times [2022-01-18 17:58:13,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:13,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117429311] [2022-01-18 17:58:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:13,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:13,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:13,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117429311] [2022-01-18 17:58:13,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117429311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:13,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:13,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:13,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635624220] [2022-01-18 17:58:13,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:13,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:13,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:13,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:13,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:13,518 INFO L87 Difference]: Start difference. First operand 7019 states and 24419 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:14,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:14,757 INFO L93 Difference]: Finished difference Result 9282 states and 32081 transitions. [2022-01-18 17:58:14,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 17:58:14,757 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:14,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:14,775 INFO L225 Difference]: With dead ends: 9282 [2022-01-18 17:58:14,775 INFO L226 Difference]: Without dead ends: 9239 [2022-01-18 17:58:14,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2041, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 17:58:14,776 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 372 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:14,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 1875 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:14,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2022-01-18 17:58:14,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 7025. [2022-01-18 17:58:14,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.478359908883827) internal successors, (24432), 7024 states have internal predecessors, (24432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24432 transitions. [2022-01-18 17:58:14,881 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24432 transitions. Word has length 39 [2022-01-18 17:58:14,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:14,881 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24432 transitions. [2022-01-18 17:58:14,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:14,881 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24432 transitions. [2022-01-18 17:58:14,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:14,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:14,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:14,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 17:58:14,892 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:14,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:14,892 INFO L85 PathProgramCache]: Analyzing trace with hash -557415458, now seen corresponding path program 207 times [2022-01-18 17:58:14,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:14,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822914556] [2022-01-18 17:58:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:14,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:15,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:15,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:15,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822914556] [2022-01-18 17:58:15,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822914556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:15,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:15,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:15,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709810321] [2022-01-18 17:58:15,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:15,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:15,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:15,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:15,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:15,089 INFO L87 Difference]: Start difference. First operand 7025 states and 24432 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:16,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:16,308 INFO L93 Difference]: Finished difference Result 9237 states and 31977 transitions. [2022-01-18 17:58:16,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 17:58:16,308 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:16,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:16,326 INFO L225 Difference]: With dead ends: 9237 [2022-01-18 17:58:16,326 INFO L226 Difference]: Without dead ends: 9174 [2022-01-18 17:58:16,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 17:58:16,327 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 350 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:16,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1873 Invalid, 2536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:16,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9174 states. [2022-01-18 17:58:16,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9174 to 7007. [2022-01-18 17:58:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4811590065658007) internal successors, (24389), 7006 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24389 transitions. [2022-01-18 17:58:16,433 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24389 transitions. Word has length 39 [2022-01-18 17:58:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:16,434 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24389 transitions. [2022-01-18 17:58:16,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24389 transitions. [2022-01-18 17:58:16,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:16,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:16,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:16,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 17:58:16,444 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:16,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:16,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1724316030, now seen corresponding path program 208 times [2022-01-18 17:58:16,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:16,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281082301] [2022-01-18 17:58:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:16,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:16,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:16,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:16,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281082301] [2022-01-18 17:58:16,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281082301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:16,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:16,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:16,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562894548] [2022-01-18 17:58:16,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:16,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:16,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:16,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:16,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:16,647 INFO L87 Difference]: Start difference. First operand 7007 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:17,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:17,965 INFO L93 Difference]: Finished difference Result 9300 states and 32134 transitions. [2022-01-18 17:58:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 17:58:17,965 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:17,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:17,983 INFO L225 Difference]: With dead ends: 9300 [2022-01-18 17:58:17,983 INFO L226 Difference]: Without dead ends: 9245 [2022-01-18 17:58:17,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:58:17,984 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 386 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:17,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1873 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:17,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2022-01-18 17:58:18,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 7009. [2022-01-18 17:58:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7009 states, 7008 states have (on average 3.4808789954337898) internal successors, (24394), 7008 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 24394 transitions. [2022-01-18 17:58:18,090 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 24394 transitions. Word has length 39 [2022-01-18 17:58:18,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:18,090 INFO L470 AbstractCegarLoop]: Abstraction has 7009 states and 24394 transitions. [2022-01-18 17:58:18,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 24394 transitions. [2022-01-18 17:58:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:18,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:18,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:18,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 17:58:18,101 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:18,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:18,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1233593252, now seen corresponding path program 209 times [2022-01-18 17:58:18,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:18,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759988741] [2022-01-18 17:58:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:18,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:18,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:18,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759988741] [2022-01-18 17:58:18,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759988741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:18,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:18,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:18,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006032417] [2022-01-18 17:58:18,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:18,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:18,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:18,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:18,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:18,299 INFO L87 Difference]: Start difference. First operand 7009 states and 24394 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:19,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:19,577 INFO L93 Difference]: Finished difference Result 9276 states and 32064 transitions. [2022-01-18 17:58:19,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 17:58:19,577 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:19,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:19,595 INFO L225 Difference]: With dead ends: 9276 [2022-01-18 17:58:19,595 INFO L226 Difference]: Without dead ends: 9233 [2022-01-18 17:58:19,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=231, Invalid=2219, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 17:58:19,595 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 376 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:19,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1856 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:19,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9233 states. [2022-01-18 17:58:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9233 to 7015. [2022-01-18 17:58:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7015 states, 7014 states have (on average 3.4797547761619616) internal successors, (24407), 7014 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7015 states to 7015 states and 24407 transitions. [2022-01-18 17:58:19,698 INFO L78 Accepts]: Start accepts. Automaton has 7015 states and 24407 transitions. Word has length 39 [2022-01-18 17:58:19,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:19,699 INFO L470 AbstractCegarLoop]: Abstraction has 7015 states and 24407 transitions. [2022-01-18 17:58:19,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7015 states and 24407 transitions. [2022-01-18 17:58:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:19,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:19,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:19,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 17:58:19,709 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:19,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:19,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1505012802, now seen corresponding path program 210 times [2022-01-18 17:58:19,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:19,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214620010] [2022-01-18 17:58:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:19,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:19,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:19,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214620010] [2022-01-18 17:58:19,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214620010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:19,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:19,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:19,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545382326] [2022-01-18 17:58:19,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:19,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:19,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:19,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:19,906 INFO L87 Difference]: Start difference. First operand 7015 states and 24407 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:21,137 INFO L93 Difference]: Finished difference Result 9231 states and 31960 transitions. [2022-01-18 17:58:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 17:58:21,137 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:21,156 INFO L225 Difference]: With dead ends: 9231 [2022-01-18 17:58:21,156 INFO L226 Difference]: Without dead ends: 9170 [2022-01-18 17:58:21,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2041, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 17:58:21,156 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 351 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:21,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1844 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9170 states. [2022-01-18 17:58:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9170 to 7003. [2022-01-18 17:58:21,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 7002 states have (on average 3.4817195087117967) internal successors, (24379), 7002 states have internal predecessors, (24379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:21,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 24379 transitions. [2022-01-18 17:58:21,265 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 24379 transitions. Word has length 39 [2022-01-18 17:58:21,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:21,265 INFO L470 AbstractCegarLoop]: Abstraction has 7003 states and 24379 transitions. [2022-01-18 17:58:21,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:21,266 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 24379 transitions. [2022-01-18 17:58:21,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:21,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:21,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:21,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 17:58:21,276 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:21,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:21,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1994417988, now seen corresponding path program 211 times [2022-01-18 17:58:21,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:21,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632542947] [2022-01-18 17:58:21,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:21,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:21,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:21,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632542947] [2022-01-18 17:58:21,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632542947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:21,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:21,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:21,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699080114] [2022-01-18 17:58:21,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:21,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:21,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:21,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:21,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:21,475 INFO L87 Difference]: Start difference. First operand 7003 states and 24379 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:22,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:22,738 INFO L93 Difference]: Finished difference Result 9226 states and 31982 transitions. [2022-01-18 17:58:22,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:58:22,738 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:22,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:22,755 INFO L225 Difference]: With dead ends: 9226 [2022-01-18 17:58:22,755 INFO L226 Difference]: Without dead ends: 9135 [2022-01-18 17:58:22,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=2214, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 17:58:22,756 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 357 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:22,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 1957 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:22,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9135 states. [2022-01-18 17:58:22,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9135 to 7009. [2022-01-18 17:58:22,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7009 states, 7008 states have (on average 3.4808789954337898) internal successors, (24394), 7008 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:22,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 24394 transitions. [2022-01-18 17:58:22,856 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 24394 transitions. Word has length 39 [2022-01-18 17:58:22,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:22,856 INFO L470 AbstractCegarLoop]: Abstraction has 7009 states and 24394 transitions. [2022-01-18 17:58:22,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:22,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 24394 transitions. [2022-01-18 17:58:22,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:22,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:22,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:22,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 17:58:22,866 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:22,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:22,867 INFO L85 PathProgramCache]: Analyzing trace with hash -703873570, now seen corresponding path program 212 times [2022-01-18 17:58:22,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:22,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393022222] [2022-01-18 17:58:22,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:22,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:23,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:23,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393022222] [2022-01-18 17:58:23,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393022222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:23,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:23,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:23,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076339697] [2022-01-18 17:58:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:23,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:23,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:23,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:23,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:23,068 INFO L87 Difference]: Start difference. First operand 7009 states and 24394 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:24,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:24,357 INFO L93 Difference]: Finished difference Result 9257 states and 32029 transitions. [2022-01-18 17:58:24,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 17:58:24,358 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:24,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:24,376 INFO L225 Difference]: With dead ends: 9257 [2022-01-18 17:58:24,376 INFO L226 Difference]: Without dead ends: 9202 [2022-01-18 17:58:24,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:58:24,376 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 374 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:24,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 1913 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:24,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9202 states. [2022-01-18 17:58:24,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9202 to 7011. [2022-01-18 17:58:24,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 7010 states have (on average 3.480599144079886) internal successors, (24399), 7010 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:24,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 24399 transitions. [2022-01-18 17:58:24,483 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 24399 transitions. Word has length 39 [2022-01-18 17:58:24,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:24,483 INFO L470 AbstractCegarLoop]: Abstraction has 7011 states and 24399 transitions. [2022-01-18 17:58:24,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:24,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 24399 transitions. [2022-01-18 17:58:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:24,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:24,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:24,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 17:58:24,493 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:24,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:24,493 INFO L85 PathProgramCache]: Analyzing trace with hash 633184444, now seen corresponding path program 213 times [2022-01-18 17:58:24,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:24,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477993128] [2022-01-18 17:58:24,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:24,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:24,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:24,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477993128] [2022-01-18 17:58:24,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477993128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:24,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:24,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:24,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166307069] [2022-01-18 17:58:24,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:24,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:24,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:24,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:24,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:24,693 INFO L87 Difference]: Start difference. First operand 7011 states and 24399 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:25,965 INFO L93 Difference]: Finished difference Result 9233 states and 31959 transitions. [2022-01-18 17:58:25,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:58:25,965 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:25,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:25,983 INFO L225 Difference]: With dead ends: 9233 [2022-01-18 17:58:25,983 INFO L226 Difference]: Without dead ends: 9190 [2022-01-18 17:58:25,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=2221, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 17:58:25,983 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 364 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:25,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1943 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:25,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9190 states. [2022-01-18 17:58:26,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9190 to 7017. [2022-01-18 17:58:26,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7017 states, 7016 states have (on average 3.4794754846066134) internal successors, (24412), 7016 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7017 states to 7017 states and 24412 transitions. [2022-01-18 17:58:26,083 INFO L78 Accepts]: Start accepts. Automaton has 7017 states and 24412 transitions. Word has length 39 [2022-01-18 17:58:26,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:26,083 INFO L470 AbstractCegarLoop]: Abstraction has 7017 states and 24412 transitions. [2022-01-18 17:58:26,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7017 states and 24412 transitions. [2022-01-18 17:58:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:26,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:26,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:26,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 17:58:26,093 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:26,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash 361764894, now seen corresponding path program 214 times [2022-01-18 17:58:26,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:26,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927842234] [2022-01-18 17:58:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:26,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:26,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:26,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:26,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927842234] [2022-01-18 17:58:26,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927842234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:26,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:26,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:26,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492033085] [2022-01-18 17:58:26,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:26,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:26,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:26,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:26,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:26,290 INFO L87 Difference]: Start difference. First operand 7017 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:27,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:27,531 INFO L93 Difference]: Finished difference Result 9188 states and 31855 transitions. [2022-01-18 17:58:27,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:58:27,531 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:27,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:27,549 INFO L225 Difference]: With dead ends: 9188 [2022-01-18 17:58:27,549 INFO L226 Difference]: Without dead ends: 9097 [2022-01-18 17:58:27,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=2221, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 17:58:27,550 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 350 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:27,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1928 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:58:27,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9097 states. [2022-01-18 17:58:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9097 to 6987. [2022-01-18 17:58:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4836816490123104) internal successors, (24337), 6986 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24337 transitions. [2022-01-18 17:58:27,656 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24337 transitions. Word has length 39 [2022-01-18 17:58:27,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:27,656 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24337 transitions. [2022-01-18 17:58:27,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:27,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24337 transitions. [2022-01-18 17:58:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:27,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:27,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:27,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 17:58:27,666 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:27,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:27,666 INFO L85 PathProgramCache]: Analyzing trace with hash -364286452, now seen corresponding path program 215 times [2022-01-18 17:58:27,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:27,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958523134] [2022-01-18 17:58:27,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:27,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:27,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:27,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:27,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958523134] [2022-01-18 17:58:27,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958523134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:27,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:27,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:27,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523331244] [2022-01-18 17:58:27,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:27,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:27,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:27,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:27,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:27,864 INFO L87 Difference]: Start difference. First operand 6987 states and 24337 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:29,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:29,399 INFO L93 Difference]: Finished difference Result 9481 states and 32641 transitions. [2022-01-18 17:58:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 17:58:29,399 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:29,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:29,417 INFO L225 Difference]: With dead ends: 9481 [2022-01-18 17:58:29,417 INFO L226 Difference]: Without dead ends: 9426 [2022-01-18 17:58:29,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=345, Invalid=3315, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 17:58:29,417 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 463 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:29,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1967 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:29,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9426 states. [2022-01-18 17:58:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9426 to 6998. [2022-01-18 17:58:29,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6998 states, 6997 states have (on average 3.4833500071459196) internal successors, (24373), 6997 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:29,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6998 states to 6998 states and 24373 transitions. [2022-01-18 17:58:29,521 INFO L78 Accepts]: Start accepts. Automaton has 6998 states and 24373 transitions. Word has length 39 [2022-01-18 17:58:29,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:29,521 INFO L470 AbstractCegarLoop]: Abstraction has 6998 states and 24373 transitions. [2022-01-18 17:58:29,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:29,521 INFO L276 IsEmpty]: Start isEmpty. Operand 6998 states and 24373 transitions. [2022-01-18 17:58:29,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:29,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:29,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:29,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 17:58:29,532 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:29,532 INFO L85 PathProgramCache]: Analyzing trace with hash 808365770, now seen corresponding path program 216 times [2022-01-18 17:58:29,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:29,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304957652] [2022-01-18 17:58:29,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:29,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:29,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:29,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304957652] [2022-01-18 17:58:29,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304957652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:29,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:29,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:29,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517093154] [2022-01-18 17:58:29,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:29,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:29,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:29,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:29,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:29,730 INFO L87 Difference]: Start difference. First operand 6998 states and 24373 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:31,464 INFO L93 Difference]: Finished difference Result 10730 states and 36770 transitions. [2022-01-18 17:58:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 17:58:31,464 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:31,485 INFO L225 Difference]: With dead ends: 10730 [2022-01-18 17:58:31,485 INFO L226 Difference]: Without dead ends: 10607 [2022-01-18 17:58:31,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=390, Invalid=4032, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 17:58:31,486 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 473 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 2971 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 3045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:31,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [473 Valid, 2401 Invalid, 3045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2971 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:58:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10607 states. [2022-01-18 17:58:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10607 to 7002. [2022-01-18 17:58:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.4836451935437793) internal successors, (24389), 7001 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:31,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24389 transitions. [2022-01-18 17:58:31,604 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24389 transitions. Word has length 39 [2022-01-18 17:58:31,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:31,604 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24389 transitions. [2022-01-18 17:58:31,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:31,604 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24389 transitions. [2022-01-18 17:58:31,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:31,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:31,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:31,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 17:58:31,614 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:31,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:31,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1069037832, now seen corresponding path program 217 times [2022-01-18 17:58:31,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:31,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929854560] [2022-01-18 17:58:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:31,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:31,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:31,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:31,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929854560] [2022-01-18 17:58:31,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929854560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:31,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:31,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:31,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930098388] [2022-01-18 17:58:31,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:31,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:31,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:31,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:31,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:31,819 INFO L87 Difference]: Start difference. First operand 7002 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:33,303 INFO L93 Difference]: Finished difference Result 9406 states and 32467 transitions. [2022-01-18 17:58:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 17:58:33,303 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:33,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:33,321 INFO L225 Difference]: With dead ends: 9406 [2022-01-18 17:58:33,321 INFO L226 Difference]: Without dead ends: 9315 [2022-01-18 17:58:33,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3104, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:58:33,322 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 447 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:33,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 2023 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9315 states. [2022-01-18 17:58:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9315 to 7008. [2022-01-18 17:58:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4819466248037676) internal successors, (24398), 7007 states have internal predecessors, (24398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:33,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24398 transitions. [2022-01-18 17:58:33,429 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24398 transitions. Word has length 39 [2022-01-18 17:58:33,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:33,429 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24398 transitions. [2022-01-18 17:58:33,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:33,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24398 transitions. [2022-01-18 17:58:33,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:33,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:33,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:33,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 17:58:33,440 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:33,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:33,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1723447258, now seen corresponding path program 218 times [2022-01-18 17:58:33,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:33,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420980721] [2022-01-18 17:58:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:33,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:33,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:33,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420980721] [2022-01-18 17:58:33,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420980721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:33,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:33,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:33,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667714820] [2022-01-18 17:58:33,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:33,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:33,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:33,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:33,644 INFO L87 Difference]: Start difference. First operand 7008 states and 24398 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:35,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:35,374 INFO L93 Difference]: Finished difference Result 10679 states and 36750 transitions. [2022-01-18 17:58:35,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-18 17:58:35,375 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:35,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:35,396 INFO L225 Difference]: With dead ends: 10679 [2022-01-18 17:58:35,396 INFO L226 Difference]: Without dead ends: 10579 [2022-01-18 17:58:35,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=3679, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 17:58:35,397 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 447 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:35,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 2515 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:58:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2022-01-18 17:58:35,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 7002. [2022-01-18 17:58:35,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.4817883159548635) internal successors, (24376), 7001 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24376 transitions. [2022-01-18 17:58:35,515 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24376 transitions. Word has length 39 [2022-01-18 17:58:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:35,515 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24376 transitions. [2022-01-18 17:58:35,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24376 transitions. [2022-01-18 17:58:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:35,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:35,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:35,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 17:58:35,525 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:35,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1396649298, now seen corresponding path program 219 times [2022-01-18 17:58:35,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:35,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760833930] [2022-01-18 17:58:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:35,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:35,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:35,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760833930] [2022-01-18 17:58:35,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760833930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:35,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:35,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:35,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303470578] [2022-01-18 17:58:35,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:35,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:35,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:35,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:35,726 INFO L87 Difference]: Start difference. First operand 7002 states and 24376 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:37,364 INFO L93 Difference]: Finished difference Result 9391 states and 32328 transitions. [2022-01-18 17:58:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 17:58:37,365 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:37,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:37,383 INFO L225 Difference]: With dead ends: 9391 [2022-01-18 17:58:37,383 INFO L226 Difference]: Without dead ends: 9336 [2022-01-18 17:58:37,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1043 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=367, Invalid=3665, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 17:58:37,384 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 442 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:37,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 1925 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:37,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9336 states. [2022-01-18 17:58:37,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9336 to 7007. [2022-01-18 17:58:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4810162717670567) internal successors, (24388), 7006 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:37,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24388 transitions. [2022-01-18 17:58:37,492 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24388 transitions. Word has length 39 [2022-01-18 17:58:37,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:37,492 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24388 transitions. [2022-01-18 17:58:37,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24388 transitions. [2022-01-18 17:58:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:37,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:37,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:37,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 17:58:37,502 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:37,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:37,502 INFO L85 PathProgramCache]: Analyzing trace with hash -223997076, now seen corresponding path program 220 times [2022-01-18 17:58:37,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:37,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820623699] [2022-01-18 17:58:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:37,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:37,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:37,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820623699] [2022-01-18 17:58:37,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820623699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:37,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:37,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:37,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596963674] [2022-01-18 17:58:37,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:37,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:37,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:37,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:37,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:37,698 INFO L87 Difference]: Start difference. First operand 7007 states and 24388 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:39,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:39,518 INFO L93 Difference]: Finished difference Result 10532 states and 36209 transitions. [2022-01-18 17:58:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 17:58:39,518 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:39,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:39,539 INFO L225 Difference]: With dead ends: 10532 [2022-01-18 17:58:39,539 INFO L226 Difference]: Without dead ends: 10472 [2022-01-18 17:58:39,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=392, Invalid=4030, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 17:58:39,540 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 443 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 2999 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:39,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 2305 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2999 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:58:39,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2022-01-18 17:58:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 7007. [2022-01-18 17:58:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4811590065658007) internal successors, (24389), 7006 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24389 transitions. [2022-01-18 17:58:39,690 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24389 transitions. Word has length 39 [2022-01-18 17:58:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:39,690 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24389 transitions. [2022-01-18 17:58:39,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24389 transitions. [2022-01-18 17:58:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:39,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:39,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:39,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 17:58:39,700 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:39,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:39,700 INFO L85 PathProgramCache]: Analyzing trace with hash -291741956, now seen corresponding path program 221 times [2022-01-18 17:58:39,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:39,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275565460] [2022-01-18 17:58:39,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:39,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:39,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:39,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275565460] [2022-01-18 17:58:39,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275565460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:39,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:39,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:39,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309131561] [2022-01-18 17:58:39,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:39,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:39,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:39,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:39,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:39,904 INFO L87 Difference]: Start difference. First operand 7007 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:41,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:41,416 INFO L93 Difference]: Finished difference Result 9320 states and 32148 transitions. [2022-01-18 17:58:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 17:58:41,416 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:41,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:41,435 INFO L225 Difference]: With dead ends: 9320 [2022-01-18 17:58:41,435 INFO L226 Difference]: Without dead ends: 9277 [2022-01-18 17:58:41,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=311, Invalid=3111, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:58:41,435 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 423 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:41,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 1916 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:41,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2022-01-18 17:58:41,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 7016. [2022-01-18 17:58:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.479686386315039) internal successors, (24410), 7015 states have internal predecessors, (24410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24410 transitions. [2022-01-18 17:58:41,544 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24410 transitions. Word has length 39 [2022-01-18 17:58:41,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:41,544 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24410 transitions. [2022-01-18 17:58:41,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24410 transitions. [2022-01-18 17:58:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:41,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:41,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:41,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 17:58:41,554 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:41,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:41,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1458365180, now seen corresponding path program 222 times [2022-01-18 17:58:41,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:41,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821835529] [2022-01-18 17:58:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:41,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:41,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:41,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:41,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821835529] [2022-01-18 17:58:41,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821835529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:41,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:41,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:41,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723253874] [2022-01-18 17:58:41,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:41,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:41,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:41,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:41,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:41,753 INFO L87 Difference]: Start difference. First operand 7016 states and 24410 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:43,155 INFO L93 Difference]: Finished difference Result 9308 states and 32114 transitions. [2022-01-18 17:58:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 17:58:43,155 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:43,173 INFO L225 Difference]: With dead ends: 9308 [2022-01-18 17:58:43,173 INFO L226 Difference]: Without dead ends: 9257 [2022-01-18 17:58:43,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 17:58:43,174 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 399 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:43,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1796 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:43,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9257 states. [2022-01-18 17:58:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9257 to 7016. [2022-01-18 17:58:43,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.4792587312900927) internal successors, (24407), 7015 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:43,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24407 transitions. [2022-01-18 17:58:43,303 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24407 transitions. Word has length 39 [2022-01-18 17:58:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:43,303 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24407 transitions. [2022-01-18 17:58:43,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24407 transitions. [2022-01-18 17:58:43,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:43,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:43,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:43,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 17:58:43,313 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash 2075583582, now seen corresponding path program 223 times [2022-01-18 17:58:43,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:43,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349819507] [2022-01-18 17:58:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:43,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:43,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:43,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349819507] [2022-01-18 17:58:43,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349819507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:43,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:43,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:43,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396853077] [2022-01-18 17:58:43,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:43,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:43,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:43,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:43,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:43,513 INFO L87 Difference]: Start difference. First operand 7016 states and 24407 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:45,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:45,281 INFO L93 Difference]: Finished difference Result 10505 states and 36124 transitions. [2022-01-18 17:58:45,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 17:58:45,281 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:45,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:45,302 INFO L225 Difference]: With dead ends: 10505 [2022-01-18 17:58:45,302 INFO L226 Difference]: Without dead ends: 10459 [2022-01-18 17:58:45,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1025 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=3679, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 17:58:45,302 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 432 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 3095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:45,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 2295 Invalid, 3095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:58:45,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2022-01-18 17:58:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 7023. [2022-01-18 17:58:45,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7023 states, 7022 states have (on average 3.4779265166619195) internal successors, (24422), 7022 states have internal predecessors, (24422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 24422 transitions. [2022-01-18 17:58:45,419 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 24422 transitions. Word has length 39 [2022-01-18 17:58:45,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:45,419 INFO L470 AbstractCegarLoop]: Abstraction has 7023 states and 24422 transitions. [2022-01-18 17:58:45,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 24422 transitions. [2022-01-18 17:58:45,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:45,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:45,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:45,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 17:58:45,429 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:45,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:45,429 INFO L85 PathProgramCache]: Analyzing trace with hash 640516092, now seen corresponding path program 224 times [2022-01-18 17:58:45,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:45,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311233449] [2022-01-18 17:58:45,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:45,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:45,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:45,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:45,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311233449] [2022-01-18 17:58:45,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311233449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:45,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:45,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:45,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945949568] [2022-01-18 17:58:45,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:45,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:45,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:45,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:45,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:45,627 INFO L87 Difference]: Start difference. First operand 7023 states and 24422 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:47,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:47,061 INFO L93 Difference]: Finished difference Result 9294 states and 32067 transitions. [2022-01-18 17:58:47,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 17:58:47,061 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:47,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:47,079 INFO L225 Difference]: With dead ends: 9294 [2022-01-18 17:58:47,079 INFO L226 Difference]: Without dead ends: 9239 [2022-01-18 17:58:47,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 17:58:47,079 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 410 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:47,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1778 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:47,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2022-01-18 17:58:47,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 7020. [2022-01-18 17:58:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4785581991736714) internal successors, (24416), 7019 states have internal predecessors, (24416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:47,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24416 transitions. [2022-01-18 17:58:47,181 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24416 transitions. Word has length 39 [2022-01-18 17:58:47,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:47,181 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24416 transitions. [2022-01-18 17:58:47,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:47,181 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24416 transitions. [2022-01-18 17:58:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:47,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:47,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:47,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 17:58:47,191 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:47,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash -642187026, now seen corresponding path program 225 times [2022-01-18 17:58:47,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:47,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75290061] [2022-01-18 17:58:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:47,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:47,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:47,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75290061] [2022-01-18 17:58:47,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75290061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:47,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:47,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:47,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12276356] [2022-01-18 17:58:47,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:47,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:47,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:47,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:47,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:47,389 INFO L87 Difference]: Start difference. First operand 7020 states and 24416 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:48,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:48,822 INFO L93 Difference]: Finished difference Result 9347 states and 32183 transitions. [2022-01-18 17:58:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 17:58:48,822 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:48,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:48,841 INFO L225 Difference]: With dead ends: 9347 [2022-01-18 17:58:48,841 INFO L226 Difference]: Without dead ends: 9290 [2022-01-18 17:58:48,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=299, Invalid=2893, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 17:58:48,842 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 414 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:48,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1800 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:48,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9290 states. [2022-01-18 17:58:48,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9290 to 7020. [2022-01-18 17:58:48,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4784157287362873) internal successors, (24415), 7019 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24415 transitions. [2022-01-18 17:58:48,952 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24415 transitions. Word has length 39 [2022-01-18 17:58:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:48,952 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24415 transitions. [2022-01-18 17:58:48,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24415 transitions. [2022-01-18 17:58:48,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:48,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:48,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:48,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 17:58:48,963 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:48,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1935302090, now seen corresponding path program 226 times [2022-01-18 17:58:48,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:48,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576046737] [2022-01-18 17:58:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:48,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:49,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:49,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576046737] [2022-01-18 17:58:49,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576046737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:49,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:49,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:49,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96106740] [2022-01-18 17:58:49,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:49,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:49,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:49,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:49,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:49,167 INFO L87 Difference]: Start difference. First operand 7020 states and 24415 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:50,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:50,710 INFO L93 Difference]: Finished difference Result 9598 states and 33031 transitions. [2022-01-18 17:58:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 17:58:50,710 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:50,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:50,728 INFO L225 Difference]: With dead ends: 9598 [2022-01-18 17:58:50,728 INFO L226 Difference]: Without dead ends: 9539 [2022-01-18 17:58:50,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=316, Invalid=3106, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:58:50,729 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 427 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:50,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1940 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:50,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9539 states. [2022-01-18 17:58:50,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9539 to 7019. [2022-01-18 17:58:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.4786263892846967) internal successors, (24413), 7018 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24413 transitions. [2022-01-18 17:58:50,831 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24413 transitions. Word has length 39 [2022-01-18 17:58:50,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:50,831 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24413 transitions. [2022-01-18 17:58:50,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:50,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24413 transitions. [2022-01-18 17:58:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:50,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:50,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:50,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 17:58:50,841 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:50,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:50,842 INFO L85 PathProgramCache]: Analyzing trace with hash 696569562, now seen corresponding path program 227 times [2022-01-18 17:58:50,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:50,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916163551] [2022-01-18 17:58:50,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:50,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:51,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:51,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916163551] [2022-01-18 17:58:51,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916163551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:51,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:51,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:51,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510858398] [2022-01-18 17:58:51,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:51,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:51,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:51,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:51,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:51,041 INFO L87 Difference]: Start difference. First operand 7019 states and 24413 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:52,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:52,442 INFO L93 Difference]: Finished difference Result 9294 states and 32083 transitions. [2022-01-18 17:58:52,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:58:52,442 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:52,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:52,460 INFO L225 Difference]: With dead ends: 9294 [2022-01-18 17:58:52,460 INFO L226 Difference]: Without dead ends: 9219 [2022-01-18 17:58:52,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=282, Invalid=2798, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 17:58:52,461 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 408 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:52,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1934 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2587 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:58:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9219 states. [2022-01-18 17:58:52,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9219 to 7005. [2022-01-18 17:58:52,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7005 states, 7004 states have (on average 3.48043974871502) internal successors, (24377), 7004 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:52,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 24377 transitions. [2022-01-18 17:58:52,570 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 24377 transitions. Word has length 39 [2022-01-18 17:58:52,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:52,570 INFO L470 AbstractCegarLoop]: Abstraction has 7005 states and 24377 transitions. [2022-01-18 17:58:52,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:52,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 24377 transitions. [2022-01-18 17:58:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:52,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:52,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:52,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 17:58:52,581 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:52,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:52,581 INFO L85 PathProgramCache]: Analyzing trace with hash 860316378, now seen corresponding path program 228 times [2022-01-18 17:58:52,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:52,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329063308] [2022-01-18 17:58:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:52,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:52,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:52,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:52,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329063308] [2022-01-18 17:58:52,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329063308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:52,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:52,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:52,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422166588] [2022-01-18 17:58:52,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:52,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:52,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:52,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:52,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:52,780 INFO L87 Difference]: Start difference. First operand 7005 states and 24377 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:54,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:54,427 INFO L93 Difference]: Finished difference Result 9664 states and 33390 transitions. [2022-01-18 17:58:54,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 17:58:54,428 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:54,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:54,446 INFO L225 Difference]: With dead ends: 9664 [2022-01-18 17:58:54,446 INFO L226 Difference]: Without dead ends: 9569 [2022-01-18 17:58:54,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=327, Invalid=3333, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 17:58:54,447 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 412 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:54,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 2233 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:58:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2022-01-18 17:58:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 6979. [2022-01-18 17:58:54,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6978 states have (on average 3.483519633132703) internal successors, (24308), 6978 states have internal predecessors, (24308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:54,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 24308 transitions. [2022-01-18 17:58:54,554 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 24308 transitions. Word has length 39 [2022-01-18 17:58:54,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:54,554 INFO L470 AbstractCegarLoop]: Abstraction has 6979 states and 24308 transitions. [2022-01-18 17:58:54,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:54,554 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 24308 transitions. [2022-01-18 17:58:54,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:54,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:54,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:54,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 17:58:54,564 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:54,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:54,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1307600068, now seen corresponding path program 229 times [2022-01-18 17:58:54,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:54,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619061506] [2022-01-18 17:58:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:54,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:54,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:54,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619061506] [2022-01-18 17:58:54,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619061506] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:54,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:54,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:54,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362584594] [2022-01-18 17:58:54,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:54,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:54,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:54,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:54,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:54,767 INFO L87 Difference]: Start difference. First operand 6979 states and 24308 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:58,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:58:58,128 INFO L93 Difference]: Finished difference Result 12981 states and 44182 transitions. [2022-01-18 17:58:58,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-01-18 17:58:58,129 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:58:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:58:58,154 INFO L225 Difference]: With dead ends: 12981 [2022-01-18 17:58:58,154 INFO L226 Difference]: Without dead ends: 12875 [2022-01-18 17:58:58,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3575 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=739, Invalid=9973, Unknown=0, NotChecked=0, Total=10712 [2022-01-18 17:58:58,155 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 699 mSDsluCounter, 3844 mSDsCounter, 0 mSdLazyCounter, 5256 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 5386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 5256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 17:58:58,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 3814 Invalid, 5386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 5256 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 17:58:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12875 states. [2022-01-18 17:58:58,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12875 to 7021. [2022-01-18 17:58:58,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.4853276353276352) internal successors, (24467), 7020 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:58,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24467 transitions. [2022-01-18 17:58:58,278 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24467 transitions. Word has length 39 [2022-01-18 17:58:58,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:58:58,278 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24467 transitions. [2022-01-18 17:58:58,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:58:58,278 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24467 transitions. [2022-01-18 17:58:58,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:58:58,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:58:58,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:58:58,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 17:58:58,289 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:58:58,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:58:58,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1492476328, now seen corresponding path program 230 times [2022-01-18 17:58:58,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:58:58,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947287146] [2022-01-18 17:58:58,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:58:58,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:58:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:58:58,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:58:58,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:58:58,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947287146] [2022-01-18 17:58:58,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947287146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:58:58,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:58:58,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:58:58,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011993459] [2022-01-18 17:58:58,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:58:58,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:58:58,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:58:58,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:58:58,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:58:58,488 INFO L87 Difference]: Start difference. First operand 7021 states and 24467 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:00,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:00,394 INFO L93 Difference]: Finished difference Result 10377 states and 35684 transitions. [2022-01-18 17:59:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-01-18 17:59:00,394 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:00,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:00,415 INFO L225 Difference]: With dead ends: 10377 [2022-01-18 17:59:00,415 INFO L226 Difference]: Without dead ends: 10313 [2022-01-18 17:59:00,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=422, Invalid=4980, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 17:59:00,416 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 546 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 3001 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:00,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 2216 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3001 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:00,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10313 states. [2022-01-18 17:59:00,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10313 to 7039. [2022-01-18 17:59:00,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.4857914180164817) internal successors, (24533), 7038 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:00,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24533 transitions. [2022-01-18 17:59:00,533 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24533 transitions. Word has length 39 [2022-01-18 17:59:00,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:00,534 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24533 transitions. [2022-01-18 17:59:00,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:00,534 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24533 transitions. [2022-01-18 17:59:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:00,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:00,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:00,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 17:59:00,544 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:00,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1884007398, now seen corresponding path program 231 times [2022-01-18 17:59:00,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:00,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315559983] [2022-01-18 17:59:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:00,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:00,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:00,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315559983] [2022-01-18 17:59:00,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315559983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:00,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:00,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:00,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476659392] [2022-01-18 17:59:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:00,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:00,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:00,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:00,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:00,760 INFO L87 Difference]: Start difference. First operand 7039 states and 24533 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:02,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:02,084 INFO L93 Difference]: Finished difference Result 9481 states and 32651 transitions. [2022-01-18 17:59:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 17:59:02,085 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:02,104 INFO L225 Difference]: With dead ends: 9481 [2022-01-18 17:59:02,104 INFO L226 Difference]: Without dead ends: 9438 [2022-01-18 17:59:02,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=2314, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 17:59:02,104 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 420 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:02,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 1942 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:02,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2022-01-18 17:59:02,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 7067. [2022-01-18 17:59:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7067 states, 7066 states have (on average 3.484574016416643) internal successors, (24622), 7066 states have internal predecessors, (24622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7067 states to 7067 states and 24622 transitions. [2022-01-18 17:59:02,213 INFO L78 Accepts]: Start accepts. Automaton has 7067 states and 24622 transitions. Word has length 39 [2022-01-18 17:59:02,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:02,213 INFO L470 AbstractCegarLoop]: Abstraction has 7067 states and 24622 transitions. [2022-01-18 17:59:02,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7067 states and 24622 transitions. [2022-01-18 17:59:02,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:02,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:02,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:02,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 17:59:02,223 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:02,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:02,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1863858664, now seen corresponding path program 232 times [2022-01-18 17:59:02,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:02,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202870742] [2022-01-18 17:59:02,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:02,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:02,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:02,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202870742] [2022-01-18 17:59:02,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202870742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:02,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:02,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:02,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311167278] [2022-01-18 17:59:02,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:02,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:02,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:02,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:02,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:02,427 INFO L87 Difference]: Start difference. First operand 7067 states and 24622 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:03,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:03,840 INFO L93 Difference]: Finished difference Result 9597 states and 33004 transitions. [2022-01-18 17:59:03,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:59:03,840 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:03,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:03,859 INFO L225 Difference]: With dead ends: 9597 [2022-01-18 17:59:03,859 INFO L226 Difference]: Without dead ends: 9554 [2022-01-18 17:59:03,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=262, Invalid=2600, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:59:03,859 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 425 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:03,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 2075 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:03,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9554 states. [2022-01-18 17:59:03,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9554 to 7063. [2022-01-18 17:59:03,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7063 states, 7062 states have (on average 3.485131690739167) internal successors, (24612), 7062 states have internal predecessors, (24612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:03,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7063 states to 7063 states and 24612 transitions. [2022-01-18 17:59:03,970 INFO L78 Accepts]: Start accepts. Automaton has 7063 states and 24612 transitions. Word has length 39 [2022-01-18 17:59:03,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:03,970 INFO L470 AbstractCegarLoop]: Abstraction has 7063 states and 24612 transitions. [2022-01-18 17:59:03,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:03,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7063 states and 24612 transitions. [2022-01-18 17:59:03,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:03,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:03,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:03,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 17:59:03,980 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:03,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash -711355176, now seen corresponding path program 233 times [2022-01-18 17:59:03,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:03,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263055205] [2022-01-18 17:59:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:03,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:04,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:04,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263055205] [2022-01-18 17:59:04,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263055205] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:04,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:04,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:04,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974692779] [2022-01-18 17:59:04,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:04,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:04,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:04,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:04,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:04,180 INFO L87 Difference]: Start difference. First operand 7063 states and 24612 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:05,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:05,844 INFO L93 Difference]: Finished difference Result 10704 states and 36777 transitions. [2022-01-18 17:59:05,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 17:59:05,844 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:05,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:05,865 INFO L225 Difference]: With dead ends: 10704 [2022-01-18 17:59:05,865 INFO L226 Difference]: Without dead ends: 10644 [2022-01-18 17:59:05,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3342, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 17:59:05,866 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 457 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 3080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:05,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2399 Invalid, 3080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:05,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10644 states. [2022-01-18 17:59:05,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10644 to 7057. [2022-01-18 17:59:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 7056 states have (on average 3.48625283446712) internal successors, (24599), 7056 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 24599 transitions. [2022-01-18 17:59:05,984 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 24599 transitions. Word has length 39 [2022-01-18 17:59:05,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:05,985 INFO L470 AbstractCegarLoop]: Abstraction has 7057 states and 24599 transitions. [2022-01-18 17:59:05,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:05,985 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 24599 transitions. [2022-01-18 17:59:05,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:05,995 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:05,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:05,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 17:59:05,995 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:05,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:05,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1504045578, now seen corresponding path program 234 times [2022-01-18 17:59:05,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:05,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883957265] [2022-01-18 17:59:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:05,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:06,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:06,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883957265] [2022-01-18 17:59:06,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883957265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:06,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:06,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:59:06,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580792239] [2022-01-18 17:59:06,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:06,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:59:06,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:06,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:59:06,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:59:06,185 INFO L87 Difference]: Start difference. First operand 7057 states and 24599 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:07,653 INFO L93 Difference]: Finished difference Result 10680 states and 36737 transitions. [2022-01-18 17:59:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 17:59:07,654 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:07,675 INFO L225 Difference]: With dead ends: 10680 [2022-01-18 17:59:07,676 INFO L226 Difference]: Without dead ends: 10604 [2022-01-18 17:59:07,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2700, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 17:59:07,676 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 428 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:07,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 2186 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-01-18 17:59:07,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 7069. [2022-01-18 17:59:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7069 states, 7068 states have (on average 3.4837294850028298) internal successors, (24623), 7068 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:07,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7069 states to 7069 states and 24623 transitions. [2022-01-18 17:59:07,794 INFO L78 Accepts]: Start accepts. Automaton has 7069 states and 24623 transitions. Word has length 39 [2022-01-18 17:59:07,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:07,794 INFO L470 AbstractCegarLoop]: Abstraction has 7069 states and 24623 transitions. [2022-01-18 17:59:07,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:07,794 INFO L276 IsEmpty]: Start isEmpty. Operand 7069 states and 24623 transitions. [2022-01-18 17:59:07,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:07,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:07,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:07,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 17:59:07,805 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:07,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:07,805 INFO L85 PathProgramCache]: Analyzing trace with hash 485991966, now seen corresponding path program 235 times [2022-01-18 17:59:07,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:07,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656117367] [2022-01-18 17:59:07,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:07,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:08,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:08,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:08,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656117367] [2022-01-18 17:59:08,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656117367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:08,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:08,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:08,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492060861] [2022-01-18 17:59:08,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:08,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:08,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:08,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:08,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:08,024 INFO L87 Difference]: Start difference. First operand 7069 states and 24623 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:09,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:09,623 INFO L93 Difference]: Finished difference Result 10662 states and 36683 transitions. [2022-01-18 17:59:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 17:59:09,623 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:09,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:09,644 INFO L225 Difference]: With dead ends: 10662 [2022-01-18 17:59:09,644 INFO L226 Difference]: Without dead ends: 10592 [2022-01-18 17:59:09,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=295, Invalid=3127, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:59:09,645 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 446 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:09,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 2414 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:09,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-01-18 17:59:09,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 7057. [2022-01-18 17:59:09,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 7056 states have (on average 3.485685941043084) internal successors, (24595), 7056 states have internal predecessors, (24595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:09,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 24595 transitions. [2022-01-18 17:59:09,763 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 24595 transitions. Word has length 39 [2022-01-18 17:59:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:09,764 INFO L470 AbstractCegarLoop]: Abstraction has 7057 states and 24595 transitions. [2022-01-18 17:59:09,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:09,764 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 24595 transitions. [2022-01-18 17:59:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:09,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:09,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:09,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 17:59:09,774 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:09,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:09,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1332175646, now seen corresponding path program 236 times [2022-01-18 17:59:09,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:09,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208426469] [2022-01-18 17:59:09,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:09,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:09,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:09,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:09,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208426469] [2022-01-18 17:59:09,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208426469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:09,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:09,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:09,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266102762] [2022-01-18 17:59:09,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:09,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:09,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:09,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:09,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:09,974 INFO L87 Difference]: Start difference. First operand 7057 states and 24595 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:11,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:11,922 INFO L93 Difference]: Finished difference Result 10427 states and 35961 transitions. [2022-01-18 17:59:11,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 17:59:11,922 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:11,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:11,943 INFO L225 Difference]: With dead ends: 10427 [2022-01-18 17:59:11,943 INFO L226 Difference]: Without dead ends: 10321 [2022-01-18 17:59:11,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1652 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=452, Invalid=5248, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 17:59:11,944 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 562 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:11,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 2316 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:11,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2022-01-18 17:59:12,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 7084. [2022-01-18 17:59:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7084 states, 7083 states have (on average 3.4859522801072993) internal successors, (24691), 7083 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:12,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7084 states to 7084 states and 24691 transitions. [2022-01-18 17:59:12,085 INFO L78 Accepts]: Start accepts. Automaton has 7084 states and 24691 transitions. Word has length 39 [2022-01-18 17:59:12,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:12,085 INFO L470 AbstractCegarLoop]: Abstraction has 7084 states and 24691 transitions. [2022-01-18 17:59:12,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7084 states and 24691 transitions. [2022-01-18 17:59:12,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:12,096 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:12,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:12,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 17:59:12,096 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:12,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:12,097 INFO L85 PathProgramCache]: Analyzing trace with hash -448422656, now seen corresponding path program 237 times [2022-01-18 17:59:12,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:12,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483782415] [2022-01-18 17:59:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:12,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:12,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:12,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483782415] [2022-01-18 17:59:12,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483782415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:12,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:12,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:12,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447623771] [2022-01-18 17:59:12,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:12,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:12,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:12,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:12,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:12,294 INFO L87 Difference]: Start difference. First operand 7084 states and 24691 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:14,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:14,491 INFO L93 Difference]: Finished difference Result 11618 states and 40022 transitions. [2022-01-18 17:59:14,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 17:59:14,492 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:14,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:14,515 INFO L225 Difference]: With dead ends: 11618 [2022-01-18 17:59:14,515 INFO L226 Difference]: Without dead ends: 11566 [2022-01-18 17:59:14,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2073 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=509, Invalid=6297, Unknown=0, NotChecked=0, Total=6806 [2022-01-18 17:59:14,516 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 603 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:14,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 2668 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:59:14,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2022-01-18 17:59:14,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 7018. [2022-01-18 17:59:14,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 7017 states have (on average 3.4855351289724954) internal successors, (24458), 7017 states have internal predecessors, (24458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:14,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 24458 transitions. [2022-01-18 17:59:14,645 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 24458 transitions. Word has length 39 [2022-01-18 17:59:14,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:14,645 INFO L470 AbstractCegarLoop]: Abstraction has 7018 states and 24458 transitions. [2022-01-18 17:59:14,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:14,645 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 24458 transitions. [2022-01-18 17:59:14,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:14,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:14,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:14,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 17:59:14,655 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:14,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2044308080, now seen corresponding path program 238 times [2022-01-18 17:59:14,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:14,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457080574] [2022-01-18 17:59:14,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:14,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:14,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:14,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457080574] [2022-01-18 17:59:14,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457080574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:14,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:14,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:14,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969871947] [2022-01-18 17:59:14,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:14,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:14,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:14,854 INFO L87 Difference]: Start difference. First operand 7018 states and 24458 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:16,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:16,150 INFO L93 Difference]: Finished difference Result 9466 states and 32661 transitions. [2022-01-18 17:59:16,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 17:59:16,150 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:16,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:16,169 INFO L225 Difference]: With dead ends: 9466 [2022-01-18 17:59:16,169 INFO L226 Difference]: Without dead ends: 9411 [2022-01-18 17:59:16,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=246, Invalid=2304, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 17:59:16,169 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 408 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:16,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1911 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2447 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:59:16,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9411 states. [2022-01-18 17:59:16,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9411 to 7026. [2022-01-18 17:59:16,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 7025 states have (on average 3.484982206405694) internal successors, (24482), 7025 states have internal predecessors, (24482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:16,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 24482 transitions. [2022-01-18 17:59:16,281 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 24482 transitions. Word has length 39 [2022-01-18 17:59:16,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:16,282 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 24482 transitions. [2022-01-18 17:59:16,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:16,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 24482 transitions. [2022-01-18 17:59:16,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:16,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:16,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:16,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 17:59:16,292 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:16,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:16,292 INFO L85 PathProgramCache]: Analyzing trace with hash -871655858, now seen corresponding path program 239 times [2022-01-18 17:59:16,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:16,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632084859] [2022-01-18 17:59:16,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:16,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:16,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:16,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632084859] [2022-01-18 17:59:16,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632084859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:16,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:16,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:16,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951564093] [2022-01-18 17:59:16,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:16,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:16,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:16,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:16,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:16,491 INFO L87 Difference]: Start difference. First operand 7026 states and 24482 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:18,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:18,146 INFO L93 Difference]: Finished difference Result 10690 states and 36761 transitions. [2022-01-18 17:59:18,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 17:59:18,146 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:18,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:18,168 INFO L225 Difference]: With dead ends: 10690 [2022-01-18 17:59:18,168 INFO L226 Difference]: Without dead ends: 10630 [2022-01-18 17:59:18,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=336, Invalid=3446, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 17:59:18,169 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 456 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:18,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2414 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:18,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10630 states. [2022-01-18 17:59:18,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10630 to 7024. [2022-01-18 17:59:18,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7024 states, 7023 states have (on average 3.48526270824434) internal successors, (24477), 7023 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:18,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7024 states to 7024 states and 24477 transitions. [2022-01-18 17:59:18,289 INFO L78 Accepts]: Start accepts. Automaton has 7024 states and 24477 transitions. Word has length 39 [2022-01-18 17:59:18,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:18,289 INFO L470 AbstractCegarLoop]: Abstraction has 7024 states and 24477 transitions. [2022-01-18 17:59:18,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:18,289 INFO L276 IsEmpty]: Start isEmpty. Operand 7024 states and 24477 transitions. [2022-01-18 17:59:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:18,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:18,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:18,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 17:59:18,300 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1545907836, now seen corresponding path program 240 times [2022-01-18 17:59:18,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:18,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453123012] [2022-01-18 17:59:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:18,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:18,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:18,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453123012] [2022-01-18 17:59:18,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453123012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:18,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:18,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:18,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301512186] [2022-01-18 17:59:18,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:18,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:18,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:18,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:18,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:18,501 INFO L87 Difference]: Start difference. First operand 7024 states and 24477 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:19,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:19,728 INFO L93 Difference]: Finished difference Result 9387 states and 32487 transitions. [2022-01-18 17:59:19,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 17:59:19,728 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:19,746 INFO L225 Difference]: With dead ends: 9387 [2022-01-18 17:59:19,747 INFO L226 Difference]: Without dead ends: 9296 [2022-01-18 17:59:19,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 17:59:19,747 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 386 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:19,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1983 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 17:59:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9296 states. [2022-01-18 17:59:19,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9296 to 7024. [2022-01-18 17:59:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7024 states, 7023 states have (on average 3.484408372490389) internal successors, (24471), 7023 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7024 states to 7024 states and 24471 transitions. [2022-01-18 17:59:19,854 INFO L78 Accepts]: Start accepts. Automaton has 7024 states and 24471 transitions. Word has length 39 [2022-01-18 17:59:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:19,855 INFO L470 AbstractCegarLoop]: Abstraction has 7024 states and 24471 transitions. [2022-01-18 17:59:19,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:19,855 INFO L276 IsEmpty]: Start isEmpty. Operand 7024 states and 24471 transitions. [2022-01-18 17:59:19,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:19,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:19,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:19,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 17:59:19,865 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:19,865 INFO L85 PathProgramCache]: Analyzing trace with hash 43425630, now seen corresponding path program 241 times [2022-01-18 17:59:19,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:19,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470593037] [2022-01-18 17:59:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:19,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:20,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:20,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470593037] [2022-01-18 17:59:20,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470593037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:20,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:20,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:20,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413803028] [2022-01-18 17:59:20,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:20,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:20,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:20,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:20,066 INFO L87 Difference]: Start difference. First operand 7024 states and 24471 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:21,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:21,818 INFO L93 Difference]: Finished difference Result 10780 states and 37126 transitions. [2022-01-18 17:59:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 17:59:21,818 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:21,840 INFO L225 Difference]: With dead ends: 10780 [2022-01-18 17:59:21,840 INFO L226 Difference]: Without dead ends: 10680 [2022-01-18 17:59:21,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=345, Invalid=3561, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 17:59:21,841 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 442 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:21,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 2622 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:21,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2022-01-18 17:59:21,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 7036. [2022-01-18 17:59:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 3.483866382373845) internal successors, (24509), 7035 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:21,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 24509 transitions. [2022-01-18 17:59:21,960 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 24509 transitions. Word has length 39 [2022-01-18 17:59:21,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:21,960 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 24509 transitions. [2022-01-18 17:59:21,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:21,960 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 24509 transitions. [2022-01-18 17:59:21,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:21,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:21,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:21,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 17:59:21,970 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:21,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:21,970 INFO L85 PathProgramCache]: Analyzing trace with hash -193199366, now seen corresponding path program 242 times [2022-01-18 17:59:21,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:21,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024210920] [2022-01-18 17:59:21,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:21,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:22,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:22,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:22,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024210920] [2022-01-18 17:59:22,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024210920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:22,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:22,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:59:22,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006376894] [2022-01-18 17:59:22,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:22,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:59:22,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:22,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:59:22,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:59:22,180 INFO L87 Difference]: Start difference. First operand 7036 states and 24509 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:23,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:23,587 INFO L93 Difference]: Finished difference Result 10500 states and 36228 transitions. [2022-01-18 17:59:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 17:59:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:23,608 INFO L225 Difference]: With dead ends: 10500 [2022-01-18 17:59:23,608 INFO L226 Difference]: Without dead ends: 10424 [2022-01-18 17:59:23,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=2406, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:59:23,609 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 391 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:23,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 2168 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:23,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2022-01-18 17:59:23,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 7068. [2022-01-18 17:59:23,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7068 states, 7067 states have (on average 3.4805433705957265) internal successors, (24597), 7067 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:23,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 24597 transitions. [2022-01-18 17:59:23,726 INFO L78 Accepts]: Start accepts. Automaton has 7068 states and 24597 transitions. Word has length 39 [2022-01-18 17:59:23,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:23,726 INFO L470 AbstractCegarLoop]: Abstraction has 7068 states and 24597 transitions. [2022-01-18 17:59:23,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7068 states and 24597 transitions. [2022-01-18 17:59:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:23,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:23,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:23,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 17:59:23,736 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:23,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:23,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1211252978, now seen corresponding path program 243 times [2022-01-18 17:59:23,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:23,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135423328] [2022-01-18 17:59:23,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:23,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:23,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:23,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135423328] [2022-01-18 17:59:23,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135423328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:23,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:23,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:23,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736069662] [2022-01-18 17:59:23,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:23,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:23,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:23,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:23,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:23,936 INFO L87 Difference]: Start difference. First operand 7068 states and 24597 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:25,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:25,457 INFO L93 Difference]: Finished difference Result 10482 states and 36174 transitions. [2022-01-18 17:59:25,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 17:59:25,457 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:25,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:25,479 INFO L225 Difference]: With dead ends: 10482 [2022-01-18 17:59:25,479 INFO L226 Difference]: Without dead ends: 10416 [2022-01-18 17:59:25,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2810, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 17:59:25,480 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 417 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:25,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 2375 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:25,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-01-18 17:59:25,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 7060. [2022-01-18 17:59:25,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7060 states, 7059 states have (on average 3.48108797280068) internal successors, (24573), 7059 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 24573 transitions. [2022-01-18 17:59:25,645 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 24573 transitions. Word has length 39 [2022-01-18 17:59:25,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:25,646 INFO L470 AbstractCegarLoop]: Abstraction has 7060 states and 24573 transitions. [2022-01-18 17:59:25,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:25,646 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 24573 transitions. [2022-01-18 17:59:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:25,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:25,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:25,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 17:59:25,656 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:25,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:25,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1493518632, now seen corresponding path program 244 times [2022-01-18 17:59:25,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:25,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145257227] [2022-01-18 17:59:25,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:25,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:25,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:25,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145257227] [2022-01-18 17:59:25,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145257227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:25,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:25,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:25,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690744956] [2022-01-18 17:59:25,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:25,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:25,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:25,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:25,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:25,854 INFO L87 Difference]: Start difference. First operand 7060 states and 24573 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:27,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:27,458 INFO L93 Difference]: Finished difference Result 10652 states and 36718 transitions. [2022-01-18 17:59:27,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 17:59:27,458 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:27,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:27,479 INFO L225 Difference]: With dead ends: 10652 [2022-01-18 17:59:27,479 INFO L226 Difference]: Without dead ends: 10490 [2022-01-18 17:59:27,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=295, Invalid=3011, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 17:59:27,480 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 412 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:27,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 2505 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:27,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10490 states. [2022-01-18 17:59:27,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10490 to 6976. [2022-01-18 17:59:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6976 states, 6975 states have (on average 3.4874551971326166) internal successors, (24325), 6975 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:27,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6976 states to 6976 states and 24325 transitions. [2022-01-18 17:59:27,596 INFO L78 Accepts]: Start accepts. Automaton has 6976 states and 24325 transitions. Word has length 39 [2022-01-18 17:59:27,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:27,596 INFO L470 AbstractCegarLoop]: Abstraction has 6976 states and 24325 transitions. [2022-01-18 17:59:27,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand 6976 states and 24325 transitions. [2022-01-18 17:59:27,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:27,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:27,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:27,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 17:59:27,606 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:27,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:27,607 INFO L85 PathProgramCache]: Analyzing trace with hash -446000826, now seen corresponding path program 245 times [2022-01-18 17:59:27,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:27,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849918077] [2022-01-18 17:59:27,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:27,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:27,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849918077] [2022-01-18 17:59:27,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849918077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:27,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:27,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:27,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963575417] [2022-01-18 17:59:27,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:27,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:27,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:27,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:27,806 INFO L87 Difference]: Start difference. First operand 6976 states and 24325 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:29,978 INFO L93 Difference]: Finished difference Result 10481 states and 35926 transitions. [2022-01-18 17:59:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 17:59:29,978 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:29,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:29,998 INFO L225 Difference]: With dead ends: 10481 [2022-01-18 17:59:29,998 INFO L226 Difference]: Without dead ends: 10417 [2022-01-18 17:59:29,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=493, Invalid=5827, Unknown=0, NotChecked=0, Total=6320 [2022-01-18 17:59:29,999 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 551 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:29,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 2291 Invalid, 3294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3182 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:59:30,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-01-18 17:59:30,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 6979. [2022-01-18 17:59:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6978 states have (on average 3.487675551734021) internal successors, (24337), 6978 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 24337 transitions. [2022-01-18 17:59:30,109 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 24337 transitions. Word has length 39 [2022-01-18 17:59:30,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:30,109 INFO L470 AbstractCegarLoop]: Abstraction has 6979 states and 24337 transitions. [2022-01-18 17:59:30,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 24337 transitions. [2022-01-18 17:59:30,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:30,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:30,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:30,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 17:59:30,120 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:30,120 INFO L85 PathProgramCache]: Analyzing trace with hash 472482744, now seen corresponding path program 246 times [2022-01-18 17:59:30,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:30,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180517113] [2022-01-18 17:59:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:30,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:30,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:30,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:30,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180517113] [2022-01-18 17:59:30,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180517113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:30,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:30,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:30,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849541624] [2022-01-18 17:59:30,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:30,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:30,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:30,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:30,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:30,318 INFO L87 Difference]: Start difference. First operand 6979 states and 24337 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:31,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:31,724 INFO L93 Difference]: Finished difference Result 9530 states and 32717 transitions. [2022-01-18 17:59:31,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 17:59:31,724 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:31,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:31,743 INFO L225 Difference]: With dead ends: 9530 [2022-01-18 17:59:31,743 INFO L226 Difference]: Without dead ends: 9487 [2022-01-18 17:59:31,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=2598, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 17:59:31,744 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 443 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:31,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1919 Invalid, 2729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:31,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-01-18 17:59:31,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 6991. [2022-01-18 17:59:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 6990 states have (on average 3.486123032904149) internal successors, (24368), 6990 states have internal predecessors, (24368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:31,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 24368 transitions. [2022-01-18 17:59:31,854 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 24368 transitions. Word has length 39 [2022-01-18 17:59:31,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:31,855 INFO L470 AbstractCegarLoop]: Abstraction has 6991 states and 24368 transitions. [2022-01-18 17:59:31,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:31,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 24368 transitions. [2022-01-18 17:59:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:31,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:31,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:31,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 17:59:31,865 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:31,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:31,865 INFO L85 PathProgramCache]: Analyzing trace with hash 492631478, now seen corresponding path program 247 times [2022-01-18 17:59:31,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:31,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706052025] [2022-01-18 17:59:31,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:31,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:32,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:32,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:32,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706052025] [2022-01-18 17:59:32,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706052025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:32,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:32,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:32,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662200745] [2022-01-18 17:59:32,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:32,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:32,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:32,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:32,067 INFO L87 Difference]: Start difference. First operand 6991 states and 24368 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:33,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:33,648 INFO L93 Difference]: Finished difference Result 9712 states and 33226 transitions. [2022-01-18 17:59:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 17:59:33,649 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:33,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:33,667 INFO L225 Difference]: With dead ends: 9712 [2022-01-18 17:59:33,667 INFO L226 Difference]: Without dead ends: 9669 [2022-01-18 17:59:33,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=302, Invalid=3120, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:59:33,668 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 461 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:33,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 2099 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:33,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9669 states. [2022-01-18 17:59:33,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9669 to 6987. [2022-01-18 17:59:33,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4866876610363584) internal successors, (24358), 6986 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24358 transitions. [2022-01-18 17:59:33,776 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24358 transitions. Word has length 39 [2022-01-18 17:59:33,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:33,776 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24358 transitions. [2022-01-18 17:59:33,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24358 transitions. [2022-01-18 17:59:33,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:33,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:33,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:33,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 17:59:33,787 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:33,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:33,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1645134966, now seen corresponding path program 248 times [2022-01-18 17:59:33,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:33,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470577020] [2022-01-18 17:59:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:33,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:33,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:33,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:33,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470577020] [2022-01-18 17:59:33,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470577020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:33,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:33,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:33,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167926555] [2022-01-18 17:59:33,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:33,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:33,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:33,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:33,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:33,986 INFO L87 Difference]: Start difference. First operand 6987 states and 24358 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:35,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:35,927 INFO L93 Difference]: Finished difference Result 10752 states and 36838 transitions. [2022-01-18 17:59:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 17:59:35,927 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:35,949 INFO L225 Difference]: With dead ends: 10752 [2022-01-18 17:59:35,949 INFO L226 Difference]: Without dead ends: 10692 [2022-01-18 17:59:35,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1221 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=398, Invalid=4158, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 17:59:35,950 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 488 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 3260 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 3348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:35,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2441 Invalid, 3348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3260 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:59:35,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-01-18 17:59:36,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 6987. [2022-01-18 17:59:36,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4875465216146577) internal successors, (24364), 6986 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24364 transitions. [2022-01-18 17:59:36,073 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24364 transitions. Word has length 39 [2022-01-18 17:59:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:36,073 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24364 transitions. [2022-01-18 17:59:36,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:36,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24364 transitions. [2022-01-18 17:59:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:36,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:36,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:36,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 17:59:36,084 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:36,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash -434431576, now seen corresponding path program 249 times [2022-01-18 17:59:36,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:36,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539051478] [2022-01-18 17:59:36,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:36,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:36,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:36,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539051478] [2022-01-18 17:59:36,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539051478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:36,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:36,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:59:36,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004161379] [2022-01-18 17:59:36,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:36,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:59:36,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:59:36,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:59:36,293 INFO L87 Difference]: Start difference. First operand 6987 states and 24364 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:37,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:37,958 INFO L93 Difference]: Finished difference Result 10732 states and 36775 transitions. [2022-01-18 17:59:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 17:59:37,958 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:37,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:37,979 INFO L225 Difference]: With dead ends: 10732 [2022-01-18 17:59:37,979 INFO L226 Difference]: Without dead ends: 10656 [2022-01-18 17:59:37,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=322, Invalid=3218, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:59:37,980 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 456 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 3020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:37,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2178 Invalid, 3020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:37,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10656 states. [2022-01-18 17:59:38,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10656 to 6999. [2022-01-18 17:59:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 6998 states have (on average 3.4849957130608744) internal successors, (24388), 6998 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 24388 transitions. [2022-01-18 17:59:38,100 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 24388 transitions. Word has length 39 [2022-01-18 17:59:38,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:38,100 INFO L470 AbstractCegarLoop]: Abstraction has 6999 states and 24388 transitions. [2022-01-18 17:59:38,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:38,101 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 24388 transitions. [2022-01-18 17:59:38,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:38,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:38,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:38,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 17:59:38,111 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:38,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:38,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1452485188, now seen corresponding path program 250 times [2022-01-18 17:59:38,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:38,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638611467] [2022-01-18 17:59:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:38,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:38,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:38,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:38,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638611467] [2022-01-18 17:59:38,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638611467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:38,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:38,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:38,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549072879] [2022-01-18 17:59:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:38,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:38,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:38,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:38,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:38,312 INFO L87 Difference]: Start difference. First operand 6999 states and 24388 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:40,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:40,196 INFO L93 Difference]: Finished difference Result 10738 states and 36791 transitions. [2022-01-18 17:59:40,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 17:59:40,197 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:40,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:40,218 INFO L225 Difference]: With dead ends: 10738 [2022-01-18 17:59:40,219 INFO L226 Difference]: Without dead ends: 10668 [2022-01-18 17:59:40,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=373, Invalid=3917, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 17:59:40,219 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 474 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 3226 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 3312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:40,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2408 Invalid, 3312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3226 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:59:40,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2022-01-18 17:59:40,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 6987. [2022-01-18 17:59:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4866876610363584) internal successors, (24358), 6986 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:40,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24358 transitions. [2022-01-18 17:59:40,366 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24358 transitions. Word has length 39 [2022-01-18 17:59:40,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:40,366 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24358 transitions. [2022-01-18 17:59:40,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:40,366 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24358 transitions. [2022-01-18 17:59:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:40,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:40,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:40,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 17:59:40,376 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:40,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:40,376 INFO L85 PathProgramCache]: Analyzing trace with hash -976097318, now seen corresponding path program 251 times [2022-01-18 17:59:40,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:40,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073218154] [2022-01-18 17:59:40,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:40,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:40,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:40,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073218154] [2022-01-18 17:59:40,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073218154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:40,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:40,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:40,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621269702] [2022-01-18 17:59:40,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:40,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:40,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:40,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:40,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:40,577 INFO L87 Difference]: Start difference. First operand 6987 states and 24358 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:42,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:42,668 INFO L93 Difference]: Finished difference Result 10391 states and 35712 transitions. [2022-01-18 17:59:42,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 17:59:42,668 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:42,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:42,690 INFO L225 Difference]: With dead ends: 10391 [2022-01-18 17:59:42,690 INFO L226 Difference]: Without dead ends: 10327 [2022-01-18 17:59:42,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1643 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=443, Invalid=5257, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 17:59:42,691 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 533 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 3272 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:42,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 2348 Invalid, 3367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:59:42,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2022-01-18 17:59:42,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 6986. [2022-01-18 17:59:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 6985 states have (on average 3.4866141732283467) internal successors, (24354), 6985 states have internal predecessors, (24354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:42,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 24354 transitions. [2022-01-18 17:59:42,813 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 24354 transitions. Word has length 39 [2022-01-18 17:59:42,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:42,813 INFO L470 AbstractCegarLoop]: Abstraction has 6986 states and 24354 transitions. [2022-01-18 17:59:42,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:42,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 24354 transitions. [2022-01-18 17:59:42,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:42,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:42,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:42,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 17:59:42,824 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:42,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1781450748, now seen corresponding path program 252 times [2022-01-18 17:59:42,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:42,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56896617] [2022-01-18 17:59:42,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:42,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:43,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:43,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:43,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56896617] [2022-01-18 17:59:43,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56896617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:43,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:43,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:43,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064131480] [2022-01-18 17:59:43,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:43,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:43,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:43,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:43,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:43,045 INFO L87 Difference]: Start difference. First operand 6986 states and 24354 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:44,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:44,407 INFO L93 Difference]: Finished difference Result 9474 states and 32586 transitions. [2022-01-18 17:59:44,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 17:59:44,407 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:44,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:44,425 INFO L225 Difference]: With dead ends: 9474 [2022-01-18 17:59:44,426 INFO L226 Difference]: Without dead ends: 9431 [2022-01-18 17:59:44,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2322, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 17:59:44,426 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 421 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:44,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1943 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:44,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9431 states. [2022-01-18 17:59:44,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9431 to 7001. [2022-01-18 17:59:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7001 states, 7000 states have (on average 3.4844285714285714) internal successors, (24391), 7000 states have internal predecessors, (24391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 24391 transitions. [2022-01-18 17:59:44,533 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 24391 transitions. Word has length 39 [2022-01-18 17:59:44,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:44,533 INFO L470 AbstractCegarLoop]: Abstraction has 7001 states and 24391 transitions. [2022-01-18 17:59:44,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:44,533 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 24391 transitions. [2022-01-18 17:59:44,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:44,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:44,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:44,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 17:59:44,543 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:44,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:44,544 INFO L85 PathProgramCache]: Analyzing trace with hash -763409412, now seen corresponding path program 253 times [2022-01-18 17:59:44,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:44,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569942905] [2022-01-18 17:59:44,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:44,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:44,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:44,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569942905] [2022-01-18 17:59:44,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569942905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:44,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:44,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:44,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896310897] [2022-01-18 17:59:44,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:44,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:44,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:44,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:44,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:44,754 INFO L87 Difference]: Start difference. First operand 7001 states and 24391 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:46,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:46,128 INFO L93 Difference]: Finished difference Result 9425 states and 32468 transitions. [2022-01-18 17:59:46,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 17:59:46,128 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:46,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:46,147 INFO L225 Difference]: With dead ends: 9425 [2022-01-18 17:59:46,147 INFO L226 Difference]: Without dead ends: 9374 [2022-01-18 17:59:46,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=2511, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 17:59:46,148 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 426 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:46,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1926 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:46,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9374 states. [2022-01-18 17:59:46,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9374 to 6995. [2022-01-18 17:59:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6995 states, 6994 states have (on average 3.4851301115241635) internal successors, (24375), 6994 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6995 states to 6995 states and 24375 transitions. [2022-01-18 17:59:46,258 INFO L78 Accepts]: Start accepts. Automaton has 6995 states and 24375 transitions. Word has length 39 [2022-01-18 17:59:46,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:46,259 INFO L470 AbstractCegarLoop]: Abstraction has 6995 states and 24375 transitions. [2022-01-18 17:59:46,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:46,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6995 states and 24375 transitions. [2022-01-18 17:59:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:46,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:46,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:46,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 17:59:46,269 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:46,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:46,270 INFO L85 PathProgramCache]: Analyzing trace with hash -146191010, now seen corresponding path program 254 times [2022-01-18 17:59:46,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:46,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669124183] [2022-01-18 17:59:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:46,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:46,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:46,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:46,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669124183] [2022-01-18 17:59:46,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669124183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:46,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:46,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:46,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377706744] [2022-01-18 17:59:46,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:46,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:46,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:46,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:46,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:46,476 INFO L87 Difference]: Start difference. First operand 6995 states and 24375 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:48,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:48,423 INFO L93 Difference]: Finished difference Result 10767 states and 36879 transitions. [2022-01-18 17:59:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 17:59:48,423 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:48,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:48,444 INFO L225 Difference]: With dead ends: 10767 [2022-01-18 17:59:48,444 INFO L226 Difference]: Without dead ends: 10721 [2022-01-18 17:59:48,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=376, Invalid=4180, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 17:59:48,445 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 481 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 3368 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 3432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:48,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 2467 Invalid, 3432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3368 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:59:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2022-01-18 17:59:48,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 7002. [2022-01-18 17:59:48,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.483788030281388) internal successors, (24390), 7001 states have internal predecessors, (24390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:48,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24390 transitions. [2022-01-18 17:59:48,563 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24390 transitions. Word has length 39 [2022-01-18 17:59:48,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:48,563 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24390 transitions. [2022-01-18 17:59:48,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:48,564 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24390 transitions. [2022-01-18 17:59:48,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:48,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:48,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:48,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-18 17:59:48,574 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:48,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:48,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1581258500, now seen corresponding path program 255 times [2022-01-18 17:59:48,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:48,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504357790] [2022-01-18 17:59:48,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:48,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:48,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:48,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:48,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504357790] [2022-01-18 17:59:48,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504357790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:48,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:48,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:48,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242266986] [2022-01-18 17:59:48,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:48,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:48,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:48,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:48,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:48,773 INFO L87 Difference]: Start difference. First operand 7002 states and 24390 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:50,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:50,155 INFO L93 Difference]: Finished difference Result 9433 states and 32482 transitions. [2022-01-18 17:59:50,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 17:59:50,155 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:50,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:50,174 INFO L225 Difference]: With dead ends: 9433 [2022-01-18 17:59:50,174 INFO L226 Difference]: Without dead ends: 9378 [2022-01-18 17:59:50,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=247, Invalid=2509, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 17:59:50,175 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 424 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:50,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1905 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:50,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9378 states. [2022-01-18 17:59:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9378 to 6999. [2022-01-18 17:59:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 6998 states have (on average 3.4841383252357816) internal successors, (24382), 6998 states have internal predecessors, (24382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 24382 transitions. [2022-01-18 17:59:50,284 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 24382 transitions. Word has length 39 [2022-01-18 17:59:50,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:50,285 INFO L470 AbstractCegarLoop]: Abstraction has 6999 states and 24382 transitions. [2022-01-18 17:59:50,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 24382 transitions. [2022-01-18 17:59:50,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:50,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:50,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:50,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 17:59:50,296 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:50,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:50,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2133092086, now seen corresponding path program 256 times [2022-01-18 17:59:50,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:50,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620438087] [2022-01-18 17:59:50,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:50,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:50,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:50,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620438087] [2022-01-18 17:59:50,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620438087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:50,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:50,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 17:59:50,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915758618] [2022-01-18 17:59:50,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:50,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 17:59:50,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:50,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 17:59:50,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 17:59:50,486 INFO L87 Difference]: Start difference. First operand 6999 states and 24382 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:52,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:52,175 INFO L93 Difference]: Finished difference Result 10639 states and 36538 transitions. [2022-01-18 17:59:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 17:59:52,176 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:52,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:52,197 INFO L225 Difference]: With dead ends: 10639 [2022-01-18 17:59:52,197 INFO L226 Difference]: Without dead ends: 10563 [2022-01-18 17:59:52,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=311, Invalid=3111, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 17:59:52,198 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 438 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:52,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 2203 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 17:59:52,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2022-01-18 17:59:52,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 7013. [2022-01-18 17:59:52,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7013 states, 7012 states have (on average 3.481460353679407) internal successors, (24412), 7012 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7013 states to 7013 states and 24412 transitions. [2022-01-18 17:59:52,318 INFO L78 Accepts]: Start accepts. Automaton has 7013 states and 24412 transitions. Word has length 39 [2022-01-18 17:59:52,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:52,318 INFO L470 AbstractCegarLoop]: Abstraction has 7013 states and 24412 transitions. [2022-01-18 17:59:52,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:52,318 INFO L276 IsEmpty]: Start isEmpty. Operand 7013 states and 24412 transitions. [2022-01-18 17:59:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:52,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:52,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:52,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 17:59:52,329 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:52,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:52,329 INFO L85 PathProgramCache]: Analyzing trace with hash 585169752, now seen corresponding path program 257 times [2022-01-18 17:59:52,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:52,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276202914] [2022-01-18 17:59:52,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:52,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:52,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:52,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:52,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276202914] [2022-01-18 17:59:52,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276202914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:52,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:52,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:52,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967126536] [2022-01-18 17:59:52,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:52,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:52,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:52,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:52,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:52,528 INFO L87 Difference]: Start difference. First operand 7013 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:54,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:54,383 INFO L93 Difference]: Finished difference Result 10720 states and 36735 transitions. [2022-01-18 17:59:54,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-18 17:59:54,383 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:54,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:54,404 INFO L225 Difference]: With dead ends: 10720 [2022-01-18 17:59:54,404 INFO L226 Difference]: Without dead ends: 10674 [2022-01-18 17:59:54,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=3807, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 17:59:54,405 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 472 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 3402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:54,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 2421 Invalid, 3402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 17:59:54,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2022-01-18 17:59:54,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 7013. [2022-01-18 17:59:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7013 states, 7012 states have (on average 3.481460353679407) internal successors, (24412), 7012 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7013 states to 7013 states and 24412 transitions. [2022-01-18 17:59:54,551 INFO L78 Accepts]: Start accepts. Automaton has 7013 states and 24412 transitions. Word has length 39 [2022-01-18 17:59:54,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:54,552 INFO L470 AbstractCegarLoop]: Abstraction has 7013 states and 24412 transitions. [2022-01-18 17:59:54,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand 7013 states and 24412 transitions. [2022-01-18 17:59:54,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:54,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:54,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:54,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 17:59:54,562 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:54,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:54,562 INFO L85 PathProgramCache]: Analyzing trace with hash -849897738, now seen corresponding path program 258 times [2022-01-18 17:59:54,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:54,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50589125] [2022-01-18 17:59:54,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:54,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:54,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:54,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:54,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50589125] [2022-01-18 17:59:54,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50589125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:54,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:54,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:54,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162871597] [2022-01-18 17:59:54,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:54,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:54,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:54,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:54,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:54,761 INFO L87 Difference]: Start difference. First operand 7013 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:56,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:56,108 INFO L93 Difference]: Finished difference Result 9331 states and 32218 transitions. [2022-01-18 17:59:56,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 17:59:56,108 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:56,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:56,127 INFO L225 Difference]: With dead ends: 9331 [2022-01-18 17:59:56,127 INFO L226 Difference]: Without dead ends: 9259 [2022-01-18 17:59:56,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=2414, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 17:59:56,127 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 413 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 2722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:56,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1904 Invalid, 2722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:56,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2022-01-18 17:59:56,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 6993. [2022-01-18 17:59:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6993 states, 6992 states have (on average 3.4844107551487413) internal successors, (24363), 6992 states have internal predecessors, (24363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6993 states to 6993 states and 24363 transitions. [2022-01-18 17:59:56,235 INFO L78 Accepts]: Start accepts. Automaton has 6993 states and 24363 transitions. Word has length 39 [2022-01-18 17:59:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:56,235 INFO L470 AbstractCegarLoop]: Abstraction has 6993 states and 24363 transitions. [2022-01-18 17:59:56,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6993 states and 24363 transitions. [2022-01-18 17:59:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:56,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:56,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:56,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 17:59:56,246 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:56,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:56,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1394534630, now seen corresponding path program 259 times [2022-01-18 17:59:56,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:56,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279502054] [2022-01-18 17:59:56,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:56,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:56,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:56,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279502054] [2022-01-18 17:59:56,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279502054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:56,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:56,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:56,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161573854] [2022-01-18 17:59:56,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:56,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:56,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:56,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:56,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:56,448 INFO L87 Difference]: Start difference. First operand 6993 states and 24363 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:58,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:58,002 INFO L93 Difference]: Finished difference Result 9524 states and 32686 transitions. [2022-01-18 17:59:58,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 17:59:58,002 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:58,022 INFO L225 Difference]: With dead ends: 9524 [2022-01-18 17:59:58,022 INFO L226 Difference]: Without dead ends: 9473 [2022-01-18 17:59:58,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=3221, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:59:58,023 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 463 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:58,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1942 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2724 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:58,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9473 states. [2022-01-18 17:59:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9473 to 7006. [2022-01-18 17:59:58,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 7005 states have (on average 3.483083511777302) internal successors, (24399), 7005 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:58,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 24399 transitions. [2022-01-18 17:59:58,153 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 24399 transitions. Word has length 39 [2022-01-18 17:59:58,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 17:59:58,153 INFO L470 AbstractCegarLoop]: Abstraction has 7006 states and 24399 transitions. [2022-01-18 17:59:58,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:58,153 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 24399 transitions. [2022-01-18 17:59:58,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 17:59:58,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 17:59:58,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 17:59:58,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-18 17:59:58,165 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 17:59:58,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 17:59:58,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1374385896, now seen corresponding path program 260 times [2022-01-18 17:59:58,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 17:59:58,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209197042] [2022-01-18 17:59:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 17:59:58,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 17:59:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 17:59:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 17:59:58,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 17:59:58,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209197042] [2022-01-18 17:59:58,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209197042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 17:59:58,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 17:59:58,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 17:59:58,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790217938] [2022-01-18 17:59:58,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 17:59:58,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 17:59:58,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 17:59:58,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 17:59:58,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 17:59:58,362 INFO L87 Difference]: Start difference. First operand 7006 states and 24399 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 17:59:59,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 17:59:59,942 INFO L93 Difference]: Finished difference Result 9644 states and 33043 transitions. [2022-01-18 17:59:59,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 17:59:59,942 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 17:59:59,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 17:59:59,961 INFO L225 Difference]: With dead ends: 9644 [2022-01-18 17:59:59,961 INFO L226 Difference]: Without dead ends: 9601 [2022-01-18 17:59:59,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 866 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3222, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 17:59:59,962 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 453 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 2858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 17:59:59,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 2048 Invalid, 2858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 17:59:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9601 states. [2022-01-18 18:00:00,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9601 to 7006. [2022-01-18 18:00:00,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 7005 states have (on average 3.4827980014275517) internal successors, (24397), 7005 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:00,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 24397 transitions. [2022-01-18 18:00:00,076 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 24397 transitions. Word has length 39 [2022-01-18 18:00:00,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:00,076 INFO L470 AbstractCegarLoop]: Abstraction has 7006 states and 24397 transitions. [2022-01-18 18:00:00,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:00,076 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 24397 transitions. [2022-01-18 18:00:00,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:00,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:00,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:00,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-18 18:00:00,087 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:00,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash -221882408, now seen corresponding path program 261 times [2022-01-18 18:00:00,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:00,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419130453] [2022-01-18 18:00:00,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:00,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:00,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:00,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:00,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419130453] [2022-01-18 18:00:00,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419130453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:00,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:00,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:00,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865986218] [2022-01-18 18:00:00,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:00,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:00,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:00,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:00,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:00,287 INFO L87 Difference]: Start difference. First operand 7006 states and 24397 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:02,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:02,351 INFO L93 Difference]: Finished difference Result 10774 states and 36855 transitions. [2022-01-18 18:00:02,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 18:00:02,352 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:02,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:02,373 INFO L225 Difference]: With dead ends: 10774 [2022-01-18 18:00:02,373 INFO L226 Difference]: Without dead ends: 10714 [2022-01-18 18:00:02,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1367 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=425, Invalid=4545, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 18:00:02,374 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 503 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 3327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:02,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 2445 Invalid, 3327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 18:00:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2022-01-18 18:00:02,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 7002. [2022-01-18 18:00:02,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.483216683330953) internal successors, (24386), 7001 states have internal predecessors, (24386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24386 transitions. [2022-01-18 18:00:02,496 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24386 transitions. Word has length 39 [2022-01-18 18:00:02,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:02,497 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24386 transitions. [2022-01-18 18:00:02,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:02,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24386 transitions. [2022-01-18 18:00:02,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:02,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:02,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:02,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-18 18:00:02,508 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:02,508 INFO L85 PathProgramCache]: Analyzing trace with hash -289627288, now seen corresponding path program 262 times [2022-01-18 18:00:02,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:02,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216643424] [2022-01-18 18:00:02,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:02,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:02,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:02,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216643424] [2022-01-18 18:00:02,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216643424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:02,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:02,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:02,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103511501] [2022-01-18 18:00:02,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:02,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:02,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:02,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:02,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:02,712 INFO L87 Difference]: Start difference. First operand 7002 states and 24386 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:04,185 INFO L93 Difference]: Finished difference Result 9498 states and 32606 transitions. [2022-01-18 18:00:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 18:00:04,185 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:04,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:04,204 INFO L225 Difference]: With dead ends: 9498 [2022-01-18 18:00:04,204 INFO L226 Difference]: Without dead ends: 9455 [2022-01-18 18:00:04,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=276, Invalid=2804, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 18:00:04,205 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 453 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:04,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1924 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:04,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9455 states. [2022-01-18 18:00:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9455 to 7011. [2022-01-18 18:00:04,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 7010 states have (on average 3.481740370898716) internal successors, (24407), 7010 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:04,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 24407 transitions. [2022-01-18 18:00:04,322 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 24407 transitions. Word has length 39 [2022-01-18 18:00:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:04,322 INFO L470 AbstractCegarLoop]: Abstraction has 7011 states and 24407 transitions. [2022-01-18 18:00:04,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 24407 transitions. [2022-01-18 18:00:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:04,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:04,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:04,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-18 18:00:04,332 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:04,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1460479848, now seen corresponding path program 263 times [2022-01-18 18:00:04,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:04,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753639025] [2022-01-18 18:00:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:04,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:04,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:04,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753639025] [2022-01-18 18:00:04,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753639025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:04,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:04,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:04,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467365083] [2022-01-18 18:00:04,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:04,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:04,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:04,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:04,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:04,534 INFO L87 Difference]: Start difference. First operand 7011 states and 24407 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:06,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:06,063 INFO L93 Difference]: Finished difference Result 9514 states and 32639 transitions. [2022-01-18 18:00:06,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 18:00:06,064 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:06,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:06,084 INFO L225 Difference]: With dead ends: 9514 [2022-01-18 18:00:06,084 INFO L226 Difference]: Without dead ends: 9414 [2022-01-18 18:00:06,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=292, Invalid=3014, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 18:00:06,085 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 463 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:06,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1918 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9414 states. [2022-01-18 18:00:06,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9414 to 7013. [2022-01-18 18:00:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7013 states, 7012 states have (on average 3.4804620650313747) internal successors, (24405), 7012 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:06,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7013 states to 7013 states and 24405 transitions. [2022-01-18 18:00:06,208 INFO L78 Accepts]: Start accepts. Automaton has 7013 states and 24405 transitions. Word has length 39 [2022-01-18 18:00:06,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:06,208 INFO L470 AbstractCegarLoop]: Abstraction has 7013 states and 24405 transitions. [2022-01-18 18:00:06,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:06,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7013 states and 24405 transitions. [2022-01-18 18:00:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:06,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:06,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:06,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-18 18:00:06,220 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:06,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:06,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2077698250, now seen corresponding path program 264 times [2022-01-18 18:00:06,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:06,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601940050] [2022-01-18 18:00:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:06,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:06,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:06,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601940050] [2022-01-18 18:00:06,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601940050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:06,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:06,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:06,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004784015] [2022-01-18 18:00:06,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:06,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:06,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:06,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:06,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:06,426 INFO L87 Difference]: Start difference. First operand 7013 states and 24405 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:08,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:08,510 INFO L93 Difference]: Finished difference Result 10735 states and 36766 transitions. [2022-01-18 18:00:08,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 18:00:08,510 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:08,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:08,533 INFO L225 Difference]: With dead ends: 10735 [2022-01-18 18:00:08,533 INFO L226 Difference]: Without dead ends: 10689 [2022-01-18 18:00:08,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1321 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=400, Invalid=4430, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 18:00:08,534 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 485 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 3321 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 3393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:08,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 2451 Invalid, 3393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 3321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 18:00:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2022-01-18 18:00:08,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 7011. [2022-01-18 18:00:08,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 7010 states have (on average 3.481027104136947) internal successors, (24402), 7010 states have internal predecessors, (24402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 24402 transitions. [2022-01-18 18:00:08,672 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 24402 transitions. Word has length 39 [2022-01-18 18:00:08,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:08,673 INFO L470 AbstractCegarLoop]: Abstraction has 7011 states and 24402 transitions. [2022-01-18 18:00:08,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 24402 transitions. [2022-01-18 18:00:08,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:08,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:08,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:08,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-18 18:00:08,705 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:08,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:08,705 INFO L85 PathProgramCache]: Analyzing trace with hash 642630760, now seen corresponding path program 265 times [2022-01-18 18:00:08,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:08,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576465326] [2022-01-18 18:00:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:08,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:08,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:08,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576465326] [2022-01-18 18:00:08,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576465326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:08,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:08,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:08,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113862003] [2022-01-18 18:00:08,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:08,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:08,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:08,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:08,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:08,922 INFO L87 Difference]: Start difference. First operand 7011 states and 24402 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:10,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:10,436 INFO L93 Difference]: Finished difference Result 9435 states and 32446 transitions. [2022-01-18 18:00:10,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 18:00:10,437 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:10,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:10,457 INFO L225 Difference]: With dead ends: 9435 [2022-01-18 18:00:10,457 INFO L226 Difference]: Without dead ends: 9374 [2022-01-18 18:00:10,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=268, Invalid=2702, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 18:00:10,458 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 434 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:10,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1887 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9374 states. [2022-01-18 18:00:10,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9374 to 7002. [2022-01-18 18:00:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.4823596629052993) internal successors, (24380), 7001 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:10,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24380 transitions. [2022-01-18 18:00:10,582 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24380 transitions. Word has length 39 [2022-01-18 18:00:10,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:10,582 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24380 transitions. [2022-01-18 18:00:10,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24380 transitions. [2022-01-18 18:00:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:10,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:10,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:10,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-18 18:00:10,594 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:10,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:10,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1099422282, now seen corresponding path program 266 times [2022-01-18 18:00:10,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:10,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957745290] [2022-01-18 18:00:10,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:10,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:10,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:10,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957745290] [2022-01-18 18:00:10,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957745290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:10,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:10,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:10,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676960164] [2022-01-18 18:00:10,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:10,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:10,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:10,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:10,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:10,801 INFO L87 Difference]: Start difference. First operand 7002 states and 24380 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:12,341 INFO L93 Difference]: Finished difference Result 9537 states and 32775 transitions. [2022-01-18 18:00:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 18:00:12,341 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:12,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:12,362 INFO L225 Difference]: With dead ends: 9537 [2022-01-18 18:00:12,362 INFO L226 Difference]: Without dead ends: 9494 [2022-01-18 18:00:12,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=2602, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 18:00:12,363 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 410 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:12,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1992 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 18:00:12,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-01-18 18:00:12,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 6998. [2022-01-18 18:00:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6998 states, 6997 states have (on average 3.482921251965128) internal successors, (24370), 6997 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6998 states to 6998 states and 24370 transitions. [2022-01-18 18:00:12,539 INFO L78 Accepts]: Start accepts. Automaton has 6998 states and 24370 transitions. Word has length 39 [2022-01-18 18:00:12,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:12,539 INFO L470 AbstractCegarLoop]: Abstraction has 6998 states and 24370 transitions. [2022-01-18 18:00:12,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:12,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6998 states and 24370 transitions. [2022-01-18 18:00:12,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:12,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:12,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:12,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-18 18:00:12,550 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:12,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:12,551 INFO L85 PathProgramCache]: Analyzing trace with hash -640072358, now seen corresponding path program 267 times [2022-01-18 18:00:12,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:12,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87895674] [2022-01-18 18:00:12,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:12,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:12,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:12,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87895674] [2022-01-18 18:00:12,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87895674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:12,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:12,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:12,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540293213] [2022-01-18 18:00:12,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:12,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:12,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:12,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:12,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:12,754 INFO L87 Difference]: Start difference. First operand 6998 states and 24370 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:14,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:14,179 INFO L93 Difference]: Finished difference Result 9368 states and 32296 transitions. [2022-01-18 18:00:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 18:00:14,180 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:14,199 INFO L225 Difference]: With dead ends: 9368 [2022-01-18 18:00:14,200 INFO L226 Difference]: Without dead ends: 9317 [2022-01-18 18:00:14,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=242, Invalid=2410, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 18:00:14,200 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 406 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:14,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 1849 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9317 states. [2022-01-18 18:00:14,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9317 to 6992. [2022-01-18 18:00:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6992 states, 6991 states have (on average 3.483764840509226) internal successors, (24355), 6991 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6992 states to 6992 states and 24355 transitions. [2022-01-18 18:00:14,322 INFO L78 Accepts]: Start accepts. Automaton has 6992 states and 24355 transitions. Word has length 39 [2022-01-18 18:00:14,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:14,322 INFO L470 AbstractCegarLoop]: Abstraction has 6992 states and 24355 transitions. [2022-01-18 18:00:14,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:14,322 INFO L276 IsEmpty]: Start isEmpty. Operand 6992 states and 24355 transitions. [2022-01-18 18:00:14,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:14,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:14,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:14,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-18 18:00:14,333 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:14,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:14,333 INFO L85 PathProgramCache]: Analyzing trace with hash -265739850, now seen corresponding path program 268 times [2022-01-18 18:00:14,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:14,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090710384] [2022-01-18 18:00:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:14,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:14,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:14,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090710384] [2022-01-18 18:00:14,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090710384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:14,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:14,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:14,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205940407] [2022-01-18 18:00:14,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:14,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:14,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:14,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:14,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:14,545 INFO L87 Difference]: Start difference. First operand 6992 states and 24355 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:18,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:18,338 INFO L93 Difference]: Finished difference Result 14103 states and 47968 transitions. [2022-01-18 18:00:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-01-18 18:00:18,339 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:18,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:18,370 INFO L225 Difference]: With dead ends: 14103 [2022-01-18 18:00:18,370 INFO L226 Difference]: Without dead ends: 13980 [2022-01-18 18:00:18,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4262 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=871, Invalid=11561, Unknown=0, NotChecked=0, Total=12432 [2022-01-18 18:00:18,371 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 675 mSDsluCounter, 4059 mSDsCounter, 0 mSdLazyCounter, 5238 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 5401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 5238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:18,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 3809 Invalid, 5401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 5238 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 18:00:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13980 states. [2022-01-18 18:00:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13980 to 7220. [2022-01-18 18:00:18,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7220 states, 7219 states have (on average 3.4849702174816457) internal successors, (25158), 7219 states have internal predecessors, (25158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:18,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7220 states to 7220 states and 25158 transitions. [2022-01-18 18:00:18,535 INFO L78 Accepts]: Start accepts. Automaton has 7220 states and 25158 transitions. Word has length 39 [2022-01-18 18:00:18,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:18,535 INFO L470 AbstractCegarLoop]: Abstraction has 7220 states and 25158 transitions. [2022-01-18 18:00:18,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:18,535 INFO L276 IsEmpty]: Start isEmpty. Operand 7220 states and 25158 transitions. [2022-01-18 18:00:18,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:18,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:18,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:18,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-18 18:00:18,548 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:18,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:18,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2023724264, now seen corresponding path program 269 times [2022-01-18 18:00:18,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:18,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709936627] [2022-01-18 18:00:18,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:18,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:18,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:18,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709936627] [2022-01-18 18:00:18,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709936627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:18,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:18,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:18,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986978295] [2022-01-18 18:00:18,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:18,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:18,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:18,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:18,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:18,762 INFO L87 Difference]: Start difference. First operand 7220 states and 25158 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:22,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:22,395 INFO L93 Difference]: Finished difference Result 13844 states and 47244 transitions. [2022-01-18 18:00:22,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-01-18 18:00:22,395 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:22,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:22,423 INFO L225 Difference]: With dead ends: 13844 [2022-01-18 18:00:22,423 INFO L226 Difference]: Without dead ends: 13679 [2022-01-18 18:00:22,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4073 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=834, Invalid=11156, Unknown=0, NotChecked=0, Total=11990 [2022-01-18 18:00:22,424 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 639 mSDsluCounter, 4154 mSDsCounter, 0 mSdLazyCounter, 5389 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 3909 SdHoareTripleChecker+Invalid, 5549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 5389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:22,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 3909 Invalid, 5549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 5389 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 18:00:22,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13679 states. [2022-01-18 18:00:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13679 to 7212. [2022-01-18 18:00:22,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7212 states, 7211 states have (on average 3.4855082512827624) internal successors, (25134), 7211 states have internal predecessors, (25134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:22,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7212 states to 7212 states and 25134 transitions. [2022-01-18 18:00:22,558 INFO L78 Accepts]: Start accepts. Automaton has 7212 states and 25134 transitions. Word has length 39 [2022-01-18 18:00:22,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:22,558 INFO L470 AbstractCegarLoop]: Abstraction has 7212 states and 25134 transitions. [2022-01-18 18:00:22,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:22,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7212 states and 25134 transitions. [2022-01-18 18:00:22,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:22,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:22,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:22,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-18 18:00:22,569 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:22,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:22,569 INFO L85 PathProgramCache]: Analyzing trace with hash 207695470, now seen corresponding path program 270 times [2022-01-18 18:00:22,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:22,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774727328] [2022-01-18 18:00:22,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:22,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:22,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:22,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774727328] [2022-01-18 18:00:22,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774727328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:22,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:22,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:22,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30498791] [2022-01-18 18:00:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:22,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:22,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:22,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:22,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:22,771 INFO L87 Difference]: Start difference. First operand 7212 states and 25134 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:24,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:24,251 INFO L93 Difference]: Finished difference Result 9783 states and 33612 transitions. [2022-01-18 18:00:24,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 18:00:24,252 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:24,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:24,271 INFO L225 Difference]: With dead ends: 9783 [2022-01-18 18:00:24,271 INFO L226 Difference]: Without dead ends: 9665 [2022-01-18 18:00:24,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=328, Invalid=3212, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 18:00:24,272 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 457 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:24,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1988 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2562 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:24,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9665 states. [2022-01-18 18:00:24,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9665 to 7223. [2022-01-18 18:00:24,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7223 states, 7222 states have (on average 3.4851841595126003) internal successors, (25170), 7222 states have internal predecessors, (25170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:24,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7223 states to 7223 states and 25170 transitions. [2022-01-18 18:00:24,388 INFO L78 Accepts]: Start accepts. Automaton has 7223 states and 25170 transitions. Word has length 39 [2022-01-18 18:00:24,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:24,388 INFO L470 AbstractCegarLoop]: Abstraction has 7223 states and 25170 transitions. [2022-01-18 18:00:24,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 7223 states and 25170 transitions. [2022-01-18 18:00:24,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:24,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:24,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:24,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-18 18:00:24,399 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:24,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1380347692, now seen corresponding path program 271 times [2022-01-18 18:00:24,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:24,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255538515] [2022-01-18 18:00:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:24,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:24,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:24,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255538515] [2022-01-18 18:00:24,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255538515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:24,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:24,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:24,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897961345] [2022-01-18 18:00:24,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:24,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:24,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:24,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:24,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:24,621 INFO L87 Difference]: Start difference. First operand 7223 states and 25170 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:26,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:26,403 INFO L93 Difference]: Finished difference Result 10928 states and 37516 transitions. [2022-01-18 18:00:26,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 18:00:26,403 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:26,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:26,426 INFO L225 Difference]: With dead ends: 10928 [2022-01-18 18:00:26,426 INFO L226 Difference]: Without dead ends: 10868 [2022-01-18 18:00:26,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=4031, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 18:00:26,427 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 488 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 2938 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:26,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2376 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2938 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 18:00:26,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10868 states. [2022-01-18 18:00:26,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10868 to 7221. [2022-01-18 18:00:26,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7221 states, 7220 states have (on average 3.4854570637119116) internal successors, (25165), 7220 states have internal predecessors, (25165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:26,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 25165 transitions. [2022-01-18 18:00:26,550 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 25165 transitions. Word has length 39 [2022-01-18 18:00:26,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:26,550 INFO L470 AbstractCegarLoop]: Abstraction has 7221 states and 25165 transitions. [2022-01-18 18:00:26,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:26,550 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 25165 transitions. [2022-01-18 18:00:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:26,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:26,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:26,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-18 18:00:26,561 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:26,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:26,561 INFO L85 PathProgramCache]: Analyzing trace with hash -497055910, now seen corresponding path program 272 times [2022-01-18 18:00:26,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:26,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996435855] [2022-01-18 18:00:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:26,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:26,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:26,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996435855] [2022-01-18 18:00:26,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996435855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:26,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:26,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:26,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029322043] [2022-01-18 18:00:26,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:26,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:26,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:26,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:26,762 INFO L87 Difference]: Start difference. First operand 7221 states and 25165 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:28,133 INFO L93 Difference]: Finished difference Result 9621 states and 33238 transitions. [2022-01-18 18:00:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 18:00:28,134 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:28,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:28,153 INFO L225 Difference]: With dead ends: 9621 [2022-01-18 18:00:28,153 INFO L226 Difference]: Without dead ends: 9530 [2022-01-18 18:00:28,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=2598, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 18:00:28,154 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 431 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 2593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:28,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 2010 Invalid, 2593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:28,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9530 states. [2022-01-18 18:00:28,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9530 to 7227. [2022-01-18 18:00:28,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 7226 states have (on average 3.483808469415998) internal successors, (25174), 7226 states have internal predecessors, (25174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:28,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 25174 transitions. [2022-01-18 18:00:28,299 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 25174 transitions. Word has length 39 [2022-01-18 18:00:28,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:28,299 INFO L470 AbstractCegarLoop]: Abstraction has 7227 states and 25174 transitions. [2022-01-18 18:00:28,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:28,299 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 25174 transitions. [2022-01-18 18:00:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:28,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:28,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:28,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-18 18:00:28,310 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:28,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:28,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1999538116, now seen corresponding path program 273 times [2022-01-18 18:00:28,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:28,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129525341] [2022-01-18 18:00:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:28,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:28,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:28,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129525341] [2022-01-18 18:00:28,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129525341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:28,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:28,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:28,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457695610] [2022-01-18 18:00:28,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:28,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:28,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:28,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:28,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:28,510 INFO L87 Difference]: Start difference. First operand 7227 states and 25174 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:30,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:30,331 INFO L93 Difference]: Finished difference Result 10970 states and 37747 transitions. [2022-01-18 18:00:30,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 18:00:30,331 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:30,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:30,353 INFO L225 Difference]: With dead ends: 10970 [2022-01-18 18:00:30,354 INFO L226 Difference]: Without dead ends: 10870 [2022-01-18 18:00:30,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=3916, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 18:00:30,354 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 466 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 3157 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:30,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 2583 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3157 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 18:00:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10870 states. [2022-01-18 18:00:30,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10870 to 7227. [2022-01-18 18:00:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 7226 states have (on average 3.483670080265707) internal successors, (25173), 7226 states have internal predecessors, (25173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 25173 transitions. [2022-01-18 18:00:30,479 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 25173 transitions. Word has length 39 [2022-01-18 18:00:30,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:30,479 INFO L470 AbstractCegarLoop]: Abstraction has 7227 states and 25173 transitions. [2022-01-18 18:00:30,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 25173 transitions. [2022-01-18 18:00:30,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:30,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:30,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:30,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-18 18:00:30,490 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:30,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash -824667376, now seen corresponding path program 274 times [2022-01-18 18:00:30,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:30,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084259257] [2022-01-18 18:00:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:30,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:30,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:30,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084259257] [2022-01-18 18:00:30,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084259257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:30,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:30,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:30,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128146714] [2022-01-18 18:00:30,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:30,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:30,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:30,690 INFO L87 Difference]: Start difference. First operand 7227 states and 25173 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:32,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:32,290 INFO L93 Difference]: Finished difference Result 9614 states and 33119 transitions. [2022-01-18 18:00:32,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 18:00:32,290 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:32,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:32,308 INFO L225 Difference]: With dead ends: 9614 [2022-01-18 18:00:32,309 INFO L226 Difference]: Without dead ends: 9559 [2022-01-18 18:00:32,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=327, Invalid=3213, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 18:00:32,309 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 434 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 2626 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:32,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1905 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2626 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:32,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2022-01-18 18:00:32,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 7234. [2022-01-18 18:00:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7234 states, 7233 states have (on average 3.4829254804368865) internal successors, (25192), 7233 states have internal predecessors, (25192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 25192 transitions. [2022-01-18 18:00:32,416 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 25192 transitions. Word has length 39 [2022-01-18 18:00:32,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:32,416 INFO L470 AbstractCegarLoop]: Abstraction has 7234 states and 25192 transitions. [2022-01-18 18:00:32,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 25192 transitions. [2022-01-18 18:00:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:32,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:32,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:32,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-18 18:00:32,427 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:32,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:32,427 INFO L85 PathProgramCache]: Analyzing trace with hash 347984846, now seen corresponding path program 275 times [2022-01-18 18:00:32,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:32,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901195312] [2022-01-18 18:00:32,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:32,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:32,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:32,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901195312] [2022-01-18 18:00:32,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901195312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:32,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:32,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:32,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66639346] [2022-01-18 18:00:32,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:32,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:32,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:32,629 INFO L87 Difference]: Start difference. First operand 7234 states and 25192 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:34,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:34,529 INFO L93 Difference]: Finished difference Result 10789 states and 37099 transitions. [2022-01-18 18:00:34,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 18:00:34,530 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:34,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:34,553 INFO L225 Difference]: With dead ends: 10789 [2022-01-18 18:00:34,553 INFO L226 Difference]: Without dead ends: 10729 [2022-01-18 18:00:34,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=384, Invalid=3906, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 18:00:34,554 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 458 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:34,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2307 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 18:00:34,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10729 states. [2022-01-18 18:00:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10729 to 7232. [2022-01-18 18:00:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7232 states, 7231 states have (on average 3.4830590513068733) internal successors, (25186), 7231 states have internal predecessors, (25186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:34,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7232 states to 7232 states and 25186 transitions. [2022-01-18 18:00:34,688 INFO L78 Accepts]: Start accepts. Automaton has 7232 states and 25186 transitions. Word has length 39 [2022-01-18 18:00:34,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:34,688 INFO L470 AbstractCegarLoop]: Abstraction has 7232 states and 25186 transitions. [2022-01-18 18:00:34,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:34,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7232 states and 25186 transitions. [2022-01-18 18:00:34,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:34,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:34,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:34,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-18 18:00:34,701 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:34,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:34,701 INFO L85 PathProgramCache]: Analyzing trace with hash 280239966, now seen corresponding path program 276 times [2022-01-18 18:00:34,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:34,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885099622] [2022-01-18 18:00:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:34,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:34,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:34,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885099622] [2022-01-18 18:00:34,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885099622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:34,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:34,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:34,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734871465] [2022-01-18 18:00:34,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:34,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:34,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:34,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:34,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:34,911 INFO L87 Difference]: Start difference. First operand 7232 states and 25186 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:36,464 INFO L93 Difference]: Finished difference Result 9539 states and 32935 transitions. [2022-01-18 18:00:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 18:00:36,464 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:36,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:36,485 INFO L225 Difference]: With dead ends: 9539 [2022-01-18 18:00:36,485 INFO L226 Difference]: Without dead ends: 9496 [2022-01-18 18:00:36,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=283, Invalid=2797, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 18:00:36,486 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 414 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:36,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1898 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:36,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9496 states. [2022-01-18 18:00:36,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9496 to 7241. [2022-01-18 18:00:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 7240 states have (on average 3.481629834254144) internal successors, (25207), 7240 states have internal predecessors, (25207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 25207 transitions. [2022-01-18 18:00:36,617 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 25207 transitions. Word has length 39 [2022-01-18 18:00:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:36,617 INFO L470 AbstractCegarLoop]: Abstraction has 7241 states and 25207 transitions. [2022-01-18 18:00:36,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 25207 transitions. [2022-01-18 18:00:36,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:36,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:36,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:36,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-18 18:00:36,629 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:36,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:36,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2030347102, now seen corresponding path program 277 times [2022-01-18 18:00:36,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:36,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833861371] [2022-01-18 18:00:36,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:36,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:36,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:36,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833861371] [2022-01-18 18:00:36,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833861371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:36,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:36,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:36,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401163692] [2022-01-18 18:00:36,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:36,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:36,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:36,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:36,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:36,835 INFO L87 Difference]: Start difference. First operand 7241 states and 25207 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:38,347 INFO L93 Difference]: Finished difference Result 9626 states and 33129 transitions. [2022-01-18 18:00:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 18:00:38,347 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:38,369 INFO L225 Difference]: With dead ends: 9626 [2022-01-18 18:00:38,369 INFO L226 Difference]: Without dead ends: 9514 [2022-01-18 18:00:38,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=296, Invalid=2896, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 18:00:38,370 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 410 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:38,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1864 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:38,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9514 states. [2022-01-18 18:00:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9514 to 7241. [2022-01-18 18:00:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 7240 states have (on average 3.4790055248618783) internal successors, (25188), 7240 states have internal predecessors, (25188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 25188 transitions. [2022-01-18 18:00:38,499 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 25188 transitions. Word has length 39 [2022-01-18 18:00:38,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:38,499 INFO L470 AbstractCegarLoop]: Abstraction has 7241 states and 25188 transitions. [2022-01-18 18:00:38,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 25188 transitions. [2022-01-18 18:00:38,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:38,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:38,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:38,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-18 18:00:38,511 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:38,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1647401792, now seen corresponding path program 278 times [2022-01-18 18:00:38,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:38,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920492704] [2022-01-18 18:00:38,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:38,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:38,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:38,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920492704] [2022-01-18 18:00:38,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920492704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:38,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:38,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:38,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893100541] [2022-01-18 18:00:38,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:38,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:38,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:38,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:38,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:38,720 INFO L87 Difference]: Start difference. First operand 7241 states and 25188 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:40,546 INFO L93 Difference]: Finished difference Result 10746 states and 36970 transitions. [2022-01-18 18:00:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 18:00:40,546 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:40,569 INFO L225 Difference]: With dead ends: 10746 [2022-01-18 18:00:40,569 INFO L226 Difference]: Without dead ends: 10700 [2022-01-18 18:00:40,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=332, Invalid=3450, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 18:00:40,570 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 434 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 3015 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:40,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 2277 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3015 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 18:00:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10700 states. [2022-01-18 18:00:40,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10700 to 7233. [2022-01-18 18:00:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7233 states, 7232 states have (on average 3.481194690265487) internal successors, (25176), 7232 states have internal predecessors, (25176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 25176 transitions. [2022-01-18 18:00:40,703 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 25176 transitions. Word has length 39 [2022-01-18 18:00:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:40,703 INFO L470 AbstractCegarLoop]: Abstraction has 7233 states and 25176 transitions. [2022-01-18 18:00:40,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 25176 transitions. [2022-01-18 18:00:40,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:40,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:40,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:40,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-18 18:00:40,715 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:40,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:40,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1212498014, now seen corresponding path program 279 times [2022-01-18 18:00:40,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:40,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048374215] [2022-01-18 18:00:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:40,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:40,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:40,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048374215] [2022-01-18 18:00:40,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048374215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:40,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:40,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:40,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936812384] [2022-01-18 18:00:40,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:40,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:40,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:40,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:40,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:40,923 INFO L87 Difference]: Start difference. First operand 7233 states and 25176 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:42,353 INFO L93 Difference]: Finished difference Result 9529 states and 32891 transitions. [2022-01-18 18:00:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 18:00:42,353 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:42,373 INFO L225 Difference]: With dead ends: 9529 [2022-01-18 18:00:42,373 INFO L226 Difference]: Without dead ends: 9454 [2022-01-18 18:00:42,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=2693, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 18:00:42,373 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 409 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:42,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 1818 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:42,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9454 states. [2022-01-18 18:00:42,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9454 to 7203. [2022-01-18 18:00:42,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7203 states, 7202 states have (on average 3.4861149680644266) internal successors, (25107), 7202 states have internal predecessors, (25107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:42,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7203 states to 7203 states and 25107 transitions. [2022-01-18 18:00:42,487 INFO L78 Accepts]: Start accepts. Automaton has 7203 states and 25107 transitions. Word has length 39 [2022-01-18 18:00:42,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:42,487 INFO L470 AbstractCegarLoop]: Abstraction has 7203 states and 25107 transitions. [2022-01-18 18:00:42,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:42,487 INFO L276 IsEmpty]: Start isEmpty. Operand 7203 states and 25107 transitions. [2022-01-18 18:00:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:42,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:42,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:42,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-18 18:00:42,498 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:42,498 INFO L85 PathProgramCache]: Analyzing trace with hash -70205104, now seen corresponding path program 280 times [2022-01-18 18:00:42,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:42,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886953015] [2022-01-18 18:00:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:42,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:42,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:42,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:42,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886953015] [2022-01-18 18:00:42,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886953015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:42,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:42,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:42,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759203076] [2022-01-18 18:00:42,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:42,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:42,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:42,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:42,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:42,722 INFO L87 Difference]: Start difference. First operand 7203 states and 25107 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:44,097 INFO L93 Difference]: Finished difference Result 9464 states and 32745 transitions. [2022-01-18 18:00:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 18:00:44,097 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:44,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:44,116 INFO L225 Difference]: With dead ends: 9464 [2022-01-18 18:00:44,116 INFO L226 Difference]: Without dead ends: 9406 [2022-01-18 18:00:44,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 18:00:44,117 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 386 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 2495 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:44,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1804 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2495 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:44,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2022-01-18 18:00:44,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 7202. [2022-01-18 18:00:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7202 states, 7201 states have (on average 3.486321344257742) internal successors, (25105), 7201 states have internal predecessors, (25105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7202 states to 7202 states and 25105 transitions. [2022-01-18 18:00:44,230 INFO L78 Accepts]: Start accepts. Automaton has 7202 states and 25105 transitions. Word has length 39 [2022-01-18 18:00:44,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:44,230 INFO L470 AbstractCegarLoop]: Abstraction has 7202 states and 25105 transitions. [2022-01-18 18:00:44,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:44,230 INFO L276 IsEmpty]: Start isEmpty. Operand 7202 states and 25105 transitions. [2022-01-18 18:00:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:44,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:44,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:44,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-18 18:00:44,241 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:44,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1268551484, now seen corresponding path program 281 times [2022-01-18 18:00:44,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:44,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642704302] [2022-01-18 18:00:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:44,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:44,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:44,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642704302] [2022-01-18 18:00:44,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642704302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:44,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:44,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:44,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305446779] [2022-01-18 18:00:44,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:44,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:44,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:44,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:44,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:44,442 INFO L87 Difference]: Start difference. First operand 7202 states and 25105 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:45,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:45,822 INFO L93 Difference]: Finished difference Result 9412 states and 32634 transitions. [2022-01-18 18:00:45,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 18:00:45,822 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:45,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:45,842 INFO L225 Difference]: With dead ends: 9412 [2022-01-18 18:00:45,842 INFO L226 Difference]: Without dead ends: 9280 [2022-01-18 18:00:45,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=2602, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 18:00:45,842 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 373 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:45,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1905 Invalid, 2606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:00:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9280 states. [2022-01-18 18:00:45,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9280 to 7163. [2022-01-18 18:00:45,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7163 states, 7162 states have (on average 3.488829935772131) internal successors, (24987), 7162 states have internal predecessors, (24987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:45,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7163 states to 7163 states and 24987 transitions. [2022-01-18 18:00:45,954 INFO L78 Accepts]: Start accepts. Automaton has 7163 states and 24987 transitions. Word has length 39 [2022-01-18 18:00:45,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:45,954 INFO L470 AbstractCegarLoop]: Abstraction has 7163 states and 24987 transitions. [2022-01-18 18:00:45,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 7163 states and 24987 transitions. [2022-01-18 18:00:45,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:45,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:45,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:45,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-18 18:00:45,965 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:45,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:45,966 INFO L85 PathProgramCache]: Analyzing trace with hash 828827482, now seen corresponding path program 282 times [2022-01-18 18:00:45,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:45,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178281158] [2022-01-18 18:00:45,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:45,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:46,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:46,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178281158] [2022-01-18 18:00:46,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178281158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:46,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:46,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:46,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036120753] [2022-01-18 18:00:46,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:46,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:46,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:46,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:46,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:46,194 INFO L87 Difference]: Start difference. First operand 7163 states and 24987 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:47,491 INFO L93 Difference]: Finished difference Result 9366 states and 32487 transitions. [2022-01-18 18:00:47,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 18:00:47,491 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:47,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:47,510 INFO L225 Difference]: With dead ends: 9366 [2022-01-18 18:00:47,510 INFO L226 Difference]: Without dead ends: 9299 [2022-01-18 18:00:47,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 18:00:47,510 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 399 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:47,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1805 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 18:00:47,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9299 states. [2022-01-18 18:00:47,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9299 to 7181. [2022-01-18 18:00:47,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7181 states, 7180 states have (on average 3.4866295264623957) internal successors, (25034), 7180 states have internal predecessors, (25034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7181 states to 7181 states and 25034 transitions. [2022-01-18 18:00:47,622 INFO L78 Accepts]: Start accepts. Automaton has 7181 states and 25034 transitions. Word has length 39 [2022-01-18 18:00:47,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:47,622 INFO L470 AbstractCegarLoop]: Abstraction has 7181 states and 25034 transitions. [2022-01-18 18:00:47,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:47,622 INFO L276 IsEmpty]: Start isEmpty. Operand 7181 states and 25034 transitions. [2022-01-18 18:00:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:47,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:47,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:47,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-18 18:00:47,633 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:47,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:47,633 INFO L85 PathProgramCache]: Analyzing trace with hash 656684264, now seen corresponding path program 283 times [2022-01-18 18:00:47,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:47,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279100029] [2022-01-18 18:00:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:47,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:47,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:47,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279100029] [2022-01-18 18:00:47,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279100029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:47,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:47,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:47,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264840758] [2022-01-18 18:00:47,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:47,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:47,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:47,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:47,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:47,836 INFO L87 Difference]: Start difference. First operand 7181 states and 25034 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:49,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:49,063 INFO L93 Difference]: Finished difference Result 9318 states and 32333 transitions. [2022-01-18 18:00:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 18:00:49,064 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:49,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:49,082 INFO L225 Difference]: With dead ends: 9318 [2022-01-18 18:00:49,082 INFO L226 Difference]: Without dead ends: 9255 [2022-01-18 18:00:49,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 18:00:49,083 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 369 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:49,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 1685 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 18:00:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9255 states. [2022-01-18 18:00:49,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9255 to 7213. [2022-01-18 18:00:49,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 7212 states have (on average 3.482806433721575) internal successors, (25118), 7212 states have internal predecessors, (25118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 25118 transitions. [2022-01-18 18:00:49,191 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 25118 transitions. Word has length 39 [2022-01-18 18:00:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:49,191 INFO L470 AbstractCegarLoop]: Abstraction has 7213 states and 25118 transitions. [2022-01-18 18:00:49,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:49,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 25118 transitions. [2022-01-18 18:00:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:49,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:49,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:49,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-18 18:00:49,201 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:49,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1146149892, now seen corresponding path program 284 times [2022-01-18 18:00:49,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:49,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436314694] [2022-01-18 18:00:49,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:49,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:49,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:49,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436314694] [2022-01-18 18:00:49,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436314694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:49,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:49,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:49,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606804141] [2022-01-18 18:00:49,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:49,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:49,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:49,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:49,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:49,403 INFO L87 Difference]: Start difference. First operand 7213 states and 25118 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:50,632 INFO L93 Difference]: Finished difference Result 9326 states and 32345 transitions. [2022-01-18 18:00:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 18:00:50,632 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:50,651 INFO L225 Difference]: With dead ends: 9326 [2022-01-18 18:00:50,651 INFO L226 Difference]: Without dead ends: 9191 [2022-01-18 18:00:50,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=246, Invalid=2406, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 18:00:50,651 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 361 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:50,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1764 Invalid, 2301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 18:00:50,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9191 states. [2022-01-18 18:00:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9191 to 7169. [2022-01-18 18:00:50,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 7168 states have (on average 3.4877232142857144) internal successors, (25000), 7168 states have internal predecessors, (25000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:50,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 25000 transitions. [2022-01-18 18:00:50,761 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 25000 transitions. Word has length 39 [2022-01-18 18:00:50,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:50,761 INFO L470 AbstractCegarLoop]: Abstraction has 7169 states and 25000 transitions. [2022-01-18 18:00:50,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:50,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 25000 transitions. [2022-01-18 18:00:50,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:50,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:50,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:50,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-18 18:00:50,772 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:50,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:50,772 INFO L85 PathProgramCache]: Analyzing trace with hash 523340236, now seen corresponding path program 285 times [2022-01-18 18:00:50,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:50,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342017525] [2022-01-18 18:00:50,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:50,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:50,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:50,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:50,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342017525] [2022-01-18 18:00:50,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342017525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:50,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:50,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:50,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179309384] [2022-01-18 18:00:50,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:50,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:50,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:50,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:50,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:50,976 INFO L87 Difference]: Start difference. First operand 7169 states and 25000 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:53,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:53,704 INFO L93 Difference]: Finished difference Result 11658 states and 39656 transitions. [2022-01-18 18:00:53,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 18:00:53,704 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:53,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:53,728 INFO L225 Difference]: With dead ends: 11658 [2022-01-18 18:00:53,728 INFO L226 Difference]: Without dead ends: 11567 [2022-01-18 18:00:53,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3033 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=710, Invalid=8602, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 18:00:53,729 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 643 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 4103 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 4225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 4103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:53,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 3206 Invalid, 4225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 4103 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 18:00:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11567 states. [2022-01-18 18:00:53,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11567 to 7243. [2022-01-18 18:00:53,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7243 states, 7242 states have (on average 3.4864678265672464) internal successors, (25249), 7242 states have internal predecessors, (25249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7243 states to 7243 states and 25249 transitions. [2022-01-18 18:00:53,884 INFO L78 Accepts]: Start accepts. Automaton has 7243 states and 25249 transitions. Word has length 39 [2022-01-18 18:00:53,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:53,885 INFO L470 AbstractCegarLoop]: Abstraction has 7243 states and 25249 transitions. [2022-01-18 18:00:53,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 7243 states and 25249 transitions. [2022-01-18 18:00:53,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:53,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:53,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:53,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-18 18:00:53,896 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:53,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1196275734, now seen corresponding path program 286 times [2022-01-18 18:00:53,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:53,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584923717] [2022-01-18 18:00:53,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:53,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:54,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:54,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584923717] [2022-01-18 18:00:54,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584923717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:54,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:54,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:54,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799288178] [2022-01-18 18:00:54,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:54,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:54,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:54,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:54,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:54,096 INFO L87 Difference]: Start difference. First operand 7243 states and 25249 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:57,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:00:57,960 INFO L93 Difference]: Finished difference Result 14514 states and 49077 transitions. [2022-01-18 18:00:57,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-01-18 18:00:57,961 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:00:57,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:00:57,993 INFO L225 Difference]: With dead ends: 14514 [2022-01-18 18:00:57,993 INFO L226 Difference]: Without dead ends: 14471 [2022-01-18 18:00:57,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6466 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1122, Invalid=16434, Unknown=0, NotChecked=0, Total=17556 [2022-01-18 18:00:57,995 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 720 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 4916 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 18:00:57,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 3592 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4916 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 18:00:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14471 states. [2022-01-18 18:00:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14471 to 7329. [2022-01-18 18:00:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7329 states, 7328 states have (on average 3.488400655021834) internal successors, (25563), 7328 states have internal predecessors, (25563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:58,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7329 states to 7329 states and 25563 transitions. [2022-01-18 18:00:58,192 INFO L78 Accepts]: Start accepts. Automaton has 7329 states and 25563 transitions. Word has length 39 [2022-01-18 18:00:58,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:00:58,193 INFO L470 AbstractCegarLoop]: Abstraction has 7329 states and 25563 transitions. [2022-01-18 18:00:58,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:00:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 7329 states and 25563 transitions. [2022-01-18 18:00:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:00:58,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:00:58,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:00:58,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-18 18:00:58,205 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:00:58,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:00:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1318093260, now seen corresponding path program 287 times [2022-01-18 18:00:58,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:00:58,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86018818] [2022-01-18 18:00:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:00:58,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:00:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:00:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:00:58,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:00:58,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86018818] [2022-01-18 18:00:58,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86018818] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:00:58,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:00:58,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:00:58,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109199516] [2022-01-18 18:00:58,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:00:58,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:00:58,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:00:58,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:00:58,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:00:58,414 INFO L87 Difference]: Start difference. First operand 7329 states and 25563 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:02,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:02,216 INFO L93 Difference]: Finished difference Result 14955 states and 50718 transitions. [2022-01-18 18:01:02,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-01-18 18:01:02,217 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:02,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:02,294 INFO L225 Difference]: With dead ends: 14955 [2022-01-18 18:01:02,295 INFO L226 Difference]: Without dead ends: 14879 [2022-01-18 18:01:02,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5920 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1053, Invalid=15203, Unknown=0, NotChecked=0, Total=16256 [2022-01-18 18:01:02,295 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 729 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 4739 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 4902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 4739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:02,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 3428 Invalid, 4902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 4739 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 18:01:02,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14879 states. [2022-01-18 18:01:02,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14879 to 7073. [2022-01-18 18:01:02,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7073 states, 7072 states have (on average 3.485718325791855) internal successors, (24651), 7072 states have internal predecessors, (24651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:02,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7073 states to 7073 states and 24651 transitions. [2022-01-18 18:01:02,447 INFO L78 Accepts]: Start accepts. Automaton has 7073 states and 24651 transitions. Word has length 39 [2022-01-18 18:01:02,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:02,447 INFO L470 AbstractCegarLoop]: Abstraction has 7073 states and 24651 transitions. [2022-01-18 18:01:02,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:02,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7073 states and 24651 transitions. [2022-01-18 18:01:02,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:02,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:02,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:02,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-18 18:01:02,459 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:02,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1938527660, now seen corresponding path program 288 times [2022-01-18 18:01:02,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:02,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435053001] [2022-01-18 18:01:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:02,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:02,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:02,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435053001] [2022-01-18 18:01:02,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435053001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:02,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:02,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:02,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104375964] [2022-01-18 18:01:02,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:02,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:02,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:02,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:02,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:02,671 INFO L87 Difference]: Start difference. First operand 7073 states and 24651 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:04,426 INFO L93 Difference]: Finished difference Result 9450 states and 32733 transitions. [2022-01-18 18:01:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 18:01:04,427 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:04,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:04,446 INFO L225 Difference]: With dead ends: 9450 [2022-01-18 18:01:04,446 INFO L226 Difference]: Without dead ends: 9383 [2022-01-18 18:01:04,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=461, Invalid=4651, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 18:01:04,447 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 459 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:04,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 1765 Invalid, 2636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:01:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2022-01-18 18:01:04,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 7097. [2022-01-18 18:01:04,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7097 states, 7096 states have (on average 3.4849210822998873) internal successors, (24729), 7096 states have internal predecessors, (24729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7097 states to 7097 states and 24729 transitions. [2022-01-18 18:01:04,561 INFO L78 Accepts]: Start accepts. Automaton has 7097 states and 24729 transitions. Word has length 39 [2022-01-18 18:01:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:04,562 INFO L470 AbstractCegarLoop]: Abstraction has 7097 states and 24729 transitions. [2022-01-18 18:01:04,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:04,562 INFO L276 IsEmpty]: Start isEmpty. Operand 7097 states and 24729 transitions. [2022-01-18 18:01:04,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:04,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:04,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:04,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-18 18:01:04,572 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:04,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:04,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1807932812, now seen corresponding path program 289 times [2022-01-18 18:01:04,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:04,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501458735] [2022-01-18 18:01:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:04,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:04,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:04,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501458735] [2022-01-18 18:01:04,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501458735] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:04,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:04,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:04,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189047218] [2022-01-18 18:01:04,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:04,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:04,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:04,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:04,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:04,778 INFO L87 Difference]: Start difference. First operand 7097 states and 24729 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:06,392 INFO L93 Difference]: Finished difference Result 9451 states and 32685 transitions. [2022-01-18 18:01:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 18:01:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:06,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:06,410 INFO L225 Difference]: With dead ends: 9451 [2022-01-18 18:01:06,410 INFO L226 Difference]: Without dead ends: 9388 [2022-01-18 18:01:06,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=419, Invalid=4003, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 18:01:06,411 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 431 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:06,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1673 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 18:01:06,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9388 states. [2022-01-18 18:01:06,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9388 to 7097. [2022-01-18 18:01:06,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7097 states, 7096 states have (on average 3.4843573844419393) internal successors, (24725), 7096 states have internal predecessors, (24725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:06,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7097 states to 7097 states and 24725 transitions. [2022-01-18 18:01:06,517 INFO L78 Accepts]: Start accepts. Automaton has 7097 states and 24725 transitions. Word has length 39 [2022-01-18 18:01:06,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:06,517 INFO L470 AbstractCegarLoop]: Abstraction has 7097 states and 24725 transitions. [2022-01-18 18:01:06,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:06,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7097 states and 24725 transitions. [2022-01-18 18:01:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:06,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:06,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:06,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-18 18:01:06,529 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:06,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:06,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1672254220, now seen corresponding path program 290 times [2022-01-18 18:01:06,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:06,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618354181] [2022-01-18 18:01:06,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:06,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:06,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:06,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618354181] [2022-01-18 18:01:06,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618354181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:06,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:06,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:06,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212997471] [2022-01-18 18:01:06,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:06,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:06,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:06,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:06,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:06,733 INFO L87 Difference]: Start difference. First operand 7097 states and 24725 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:09,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:09,166 INFO L93 Difference]: Finished difference Result 10809 states and 37221 transitions. [2022-01-18 18:01:09,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 18:01:09,166 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:09,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:09,190 INFO L225 Difference]: With dead ends: 10809 [2022-01-18 18:01:09,191 INFO L226 Difference]: Without dead ends: 10766 [2022-01-18 18:01:09,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2910 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=668, Invalid=8262, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 18:01:09,192 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 550 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 3048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:09,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 2153 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 3048 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 18:01:09,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-01-18 18:01:09,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 7124. [2022-01-18 18:01:09,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7124 states, 7123 states have (on average 3.4846272637933455) internal successors, (24821), 7123 states have internal predecessors, (24821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7124 states to 7124 states and 24821 transitions. [2022-01-18 18:01:09,370 INFO L78 Accepts]: Start accepts. Automaton has 7124 states and 24821 transitions. Word has length 39 [2022-01-18 18:01:09,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:09,370 INFO L470 AbstractCegarLoop]: Abstraction has 7124 states and 24821 transitions. [2022-01-18 18:01:09,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 7124 states and 24821 transitions. [2022-01-18 18:01:09,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:09,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:09,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:09,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-18 18:01:09,382 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:09,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:09,382 INFO L85 PathProgramCache]: Analyzing trace with hash -108344082, now seen corresponding path program 291 times [2022-01-18 18:01:09,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:09,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532564988] [2022-01-18 18:01:09,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:09,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:09,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:09,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532564988] [2022-01-18 18:01:09,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532564988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:09,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:09,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:09,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838033124] [2022-01-18 18:01:09,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:09,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:09,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:09,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:09,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:09,597 INFO L87 Difference]: Start difference. First operand 7124 states and 24821 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:12,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:12,300 INFO L93 Difference]: Finished difference Result 11996 states and 41227 transitions. [2022-01-18 18:01:12,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-01-18 18:01:12,300 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:12,327 INFO L225 Difference]: With dead ends: 11996 [2022-01-18 18:01:12,327 INFO L226 Difference]: Without dead ends: 11944 [2022-01-18 18:01:12,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3381 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=708, Invalid=9392, Unknown=0, NotChecked=0, Total=10100 [2022-01-18 18:01:12,328 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 584 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:12,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 2511 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 3316 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 18:01:12,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11944 states. [2022-01-18 18:01:12,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11944 to 7120. [2022-01-18 18:01:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7120 states, 7119 states have (on average 3.4846186262115464) internal successors, (24807), 7119 states have internal predecessors, (24807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7120 states to 7120 states and 24807 transitions. [2022-01-18 18:01:12,481 INFO L78 Accepts]: Start accepts. Automaton has 7120 states and 24807 transitions. Word has length 39 [2022-01-18 18:01:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:12,482 INFO L470 AbstractCegarLoop]: Abstraction has 7120 states and 24807 transitions. [2022-01-18 18:01:12,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:12,482 INFO L276 IsEmpty]: Start isEmpty. Operand 7120 states and 24807 transitions. [2022-01-18 18:01:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:12,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:12,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:12,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-18 18:01:12,494 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:12,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:12,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1704229506, now seen corresponding path program 292 times [2022-01-18 18:01:12,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:12,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413869308] [2022-01-18 18:01:12,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:12,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:12,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:12,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:12,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413869308] [2022-01-18 18:01:12,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413869308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:12,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:12,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:12,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024621120] [2022-01-18 18:01:12,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:12,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:12,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:12,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:12,705 INFO L87 Difference]: Start difference. First operand 7120 states and 24807 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:14,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:14,376 INFO L93 Difference]: Finished difference Result 9543 states and 32904 transitions. [2022-01-18 18:01:14,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 18:01:14,377 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:14,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:14,397 INFO L225 Difference]: With dead ends: 9543 [2022-01-18 18:01:14,397 INFO L226 Difference]: Without dead ends: 9488 [2022-01-18 18:01:14,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1185 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=418, Invalid=4004, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 18:01:14,398 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 436 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:14,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 1650 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:01:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9488 states. [2022-01-18 18:01:14,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9488 to 7122. [2022-01-18 18:01:14,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 7121 states have (on average 3.4840612273557086) internal successors, (24810), 7121 states have internal predecessors, (24810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 24810 transitions. [2022-01-18 18:01:14,530 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 24810 transitions. Word has length 39 [2022-01-18 18:01:14,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:14,530 INFO L470 AbstractCegarLoop]: Abstraction has 7122 states and 24810 transitions. [2022-01-18 18:01:14,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 24810 transitions. [2022-01-18 18:01:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:14,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:14,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:14,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-18 18:01:14,542 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:14,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:14,542 INFO L85 PathProgramCache]: Analyzing trace with hash -531577284, now seen corresponding path program 293 times [2022-01-18 18:01:14,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:14,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24506647] [2022-01-18 18:01:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:14,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:14,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:14,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24506647] [2022-01-18 18:01:14,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24506647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:14,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:14,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:14,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426292854] [2022-01-18 18:01:14,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:14,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:14,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:14,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:14,751 INFO L87 Difference]: Start difference. First operand 7122 states and 24810 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:16,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:16,563 INFO L93 Difference]: Finished difference Result 10630 states and 36630 transitions. [2022-01-18 18:01:16,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-18 18:01:16,563 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:16,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:16,587 INFO L225 Difference]: With dead ends: 10630 [2022-01-18 18:01:16,588 INFO L226 Difference]: Without dead ends: 10584 [2022-01-18 18:01:16,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=419, Invalid=4273, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 18:01:16,588 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 454 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:16,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 1993 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 18:01:16,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2022-01-18 18:01:16,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 7126. [2022-01-18 18:01:16,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7126 states, 7125 states have (on average 3.483228070175439) internal successors, (24818), 7125 states have internal predecessors, (24818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:16,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7126 states to 7126 states and 24818 transitions. [2022-01-18 18:01:16,732 INFO L78 Accepts]: Start accepts. Automaton has 7126 states and 24818 transitions. Word has length 39 [2022-01-18 18:01:16,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:16,732 INFO L470 AbstractCegarLoop]: Abstraction has 7126 states and 24818 transitions. [2022-01-18 18:01:16,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:16,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7126 states and 24818 transitions. [2022-01-18 18:01:16,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:16,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:16,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:16,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-18 18:01:16,746 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:16,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:16,746 INFO L85 PathProgramCache]: Analyzing trace with hash -779043446, now seen corresponding path program 294 times [2022-01-18 18:01:16,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:16,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77961550] [2022-01-18 18:01:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:16,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:16,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:16,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77961550] [2022-01-18 18:01:16,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77961550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:16,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:16,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:16,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420894753] [2022-01-18 18:01:16,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:16,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:16,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:16,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:16,957 INFO L87 Difference]: Start difference. First operand 7126 states and 24818 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:18,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:18,623 INFO L93 Difference]: Finished difference Result 9486 states and 32772 transitions. [2022-01-18 18:01:18,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 18:01:18,624 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:18,643 INFO L225 Difference]: With dead ends: 9486 [2022-01-18 18:01:18,643 INFO L226 Difference]: Without dead ends: 9437 [2022-01-18 18:01:18,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1185 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=410, Invalid=4012, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 18:01:18,644 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 431 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 2507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:18,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1697 Invalid, 2507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:01:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9437 states. [2022-01-18 18:01:18,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9437 to 7116. [2022-01-18 18:01:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7116 states, 7115 states have (on average 3.4854532677442025) internal successors, (24799), 7115 states have internal predecessors, (24799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:18,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7116 states to 7116 states and 24799 transitions. [2022-01-18 18:01:18,756 INFO L78 Accepts]: Start accepts. Automaton has 7116 states and 24799 transitions. Word has length 39 [2022-01-18 18:01:18,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:18,756 INFO L470 AbstractCegarLoop]: Abstraction has 7116 states and 24799 transitions. [2022-01-18 18:01:18,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7116 states and 24799 transitions. [2022-01-18 18:01:18,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:18,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:18,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:18,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-18 18:01:18,766 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:18,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:18,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1420112470, now seen corresponding path program 295 times [2022-01-18 18:01:18,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:18,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438353605] [2022-01-18 18:01:18,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:18,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:18,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:18,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438353605] [2022-01-18 18:01:18,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438353605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:18,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:18,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:18,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322739159] [2022-01-18 18:01:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:18,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:18,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:18,972 INFO L87 Difference]: Start difference. First operand 7116 states and 24799 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:21,701 INFO L93 Difference]: Finished difference Result 11467 states and 39124 transitions. [2022-01-18 18:01:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-01-18 18:01:21,702 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:21,723 INFO L225 Difference]: With dead ends: 11467 [2022-01-18 18:01:21,724 INFO L226 Difference]: Without dead ends: 11400 [2022-01-18 18:01:21,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2716 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=659, Invalid=7897, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 18:01:21,724 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 602 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 4185 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 4288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 4185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:21,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 3211 Invalid, 4288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 4185 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 18:01:21,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11400 states. [2022-01-18 18:01:21,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11400 to 7134. [2022-01-18 18:01:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7134 states, 7133 states have (on average 3.483387074162344) internal successors, (24847), 7133 states have internal predecessors, (24847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 24847 transitions. [2022-01-18 18:01:21,847 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 24847 transitions. Word has length 39 [2022-01-18 18:01:21,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:21,847 INFO L470 AbstractCegarLoop]: Abstraction has 7134 states and 24847 transitions. [2022-01-18 18:01:21,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 24847 transitions. [2022-01-18 18:01:21,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:21,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:21,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:21,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-18 18:01:21,858 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:21,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:21,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1155238856, now seen corresponding path program 296 times [2022-01-18 18:01:21,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:21,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634760231] [2022-01-18 18:01:21,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:21,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:22,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:22,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634760231] [2022-01-18 18:01:22,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634760231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:22,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:22,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:22,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998515320] [2022-01-18 18:01:22,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:22,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:22,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:22,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:22,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:22,062 INFO L87 Difference]: Start difference. First operand 7134 states and 24847 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:25,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:25,899 INFO L93 Difference]: Finished difference Result 14265 states and 48416 transitions. [2022-01-18 18:01:25,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-01-18 18:01:25,899 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:25,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:25,931 INFO L225 Difference]: With dead ends: 14265 [2022-01-18 18:01:25,931 INFO L226 Difference]: Without dead ends: 14222 [2022-01-18 18:01:25,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5259 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=998, Invalid=13764, Unknown=0, NotChecked=0, Total=14762 [2022-01-18 18:01:25,932 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 680 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 5109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:25,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 3586 Invalid, 5109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 4981 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 18:01:25,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14222 states. [2022-01-18 18:01:26,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14222 to 7152. [2022-01-18 18:01:26,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7152 states, 7151 states have (on average 3.4830093693189763) internal successors, (24907), 7151 states have internal predecessors, (24907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:26,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 24907 transitions. [2022-01-18 18:01:26,088 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 24907 transitions. Word has length 39 [2022-01-18 18:01:26,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:26,088 INFO L470 AbstractCegarLoop]: Abstraction has 7152 states and 24907 transitions. [2022-01-18 18:01:26,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:26,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 24907 transitions. [2022-01-18 18:01:26,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:26,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:26,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:26,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-18 18:01:26,100 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:26,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:26,101 INFO L85 PathProgramCache]: Analyzing trace with hash -625359446, now seen corresponding path program 297 times [2022-01-18 18:01:26,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:26,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452896367] [2022-01-18 18:01:26,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:26,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:26,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:26,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:26,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452896367] [2022-01-18 18:01:26,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452896367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:26,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:26,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:26,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235258903] [2022-01-18 18:01:26,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:26,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:26,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:26,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:26,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:26,310 INFO L87 Difference]: Start difference. First operand 7152 states and 24907 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:29,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:29,997 INFO L93 Difference]: Finished difference Result 14706 states and 50057 transitions. [2022-01-18 18:01:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-01-18 18:01:29,997 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:30,079 INFO L225 Difference]: With dead ends: 14706 [2022-01-18 18:01:30,079 INFO L226 Difference]: Without dead ends: 14642 [2022-01-18 18:01:30,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4769 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=931, Invalid=12641, Unknown=0, NotChecked=0, Total=13572 [2022-01-18 18:01:30,079 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 689 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 4950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:30,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 3420 Invalid, 4950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 4806 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 18:01:30,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14642 states. [2022-01-18 18:01:30,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14642 to 7116. [2022-01-18 18:01:30,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7116 states, 7115 states have (on average 3.4854532677442025) internal successors, (24799), 7115 states have internal predecessors, (24799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7116 states to 7116 states and 24799 transitions. [2022-01-18 18:01:30,235 INFO L78 Accepts]: Start accepts. Automaton has 7116 states and 24799 transitions. Word has length 39 [2022-01-18 18:01:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:30,236 INFO L470 AbstractCegarLoop]: Abstraction has 7116 states and 24799 transitions. [2022-01-18 18:01:30,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7116 states and 24799 transitions. [2022-01-18 18:01:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:30,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:30,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:30,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-18 18:01:30,248 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:30,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:30,248 INFO L85 PathProgramCache]: Analyzing trace with hash 679495850, now seen corresponding path program 298 times [2022-01-18 18:01:30,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:30,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140456344] [2022-01-18 18:01:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:30,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:30,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:30,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140456344] [2022-01-18 18:01:30,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140456344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:30,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:30,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:30,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719855266] [2022-01-18 18:01:30,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:30,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:30,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:30,454 INFO L87 Difference]: Start difference. First operand 7116 states and 24799 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:32,069 INFO L93 Difference]: Finished difference Result 9383 states and 32558 transitions. [2022-01-18 18:01:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 18:01:32,069 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:32,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:32,090 INFO L225 Difference]: With dead ends: 9383 [2022-01-18 18:01:32,091 INFO L226 Difference]: Without dead ends: 9316 [2022-01-18 18:01:32,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=362, Invalid=3670, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 18:01:32,091 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 427 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 2657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:32,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1761 Invalid, 2657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:01:32,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9316 states. [2022-01-18 18:01:32,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9316 to 7134. [2022-01-18 18:01:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7134 states, 7133 states have (on average 3.4825459133604375) internal successors, (24841), 7133 states have internal predecessors, (24841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 24841 transitions. [2022-01-18 18:01:32,213 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 24841 transitions. Word has length 39 [2022-01-18 18:01:32,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:32,213 INFO L470 AbstractCegarLoop]: Abstraction has 7134 states and 24841 transitions. [2022-01-18 18:01:32,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:32,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 24841 transitions. [2022-01-18 18:01:32,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:32,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:32,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:32,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-01-18 18:01:32,224 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:32,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:32,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1037566058, now seen corresponding path program 299 times [2022-01-18 18:01:32,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:32,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105117546] [2022-01-18 18:01:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:32,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:32,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:32,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105117546] [2022-01-18 18:01:32,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105117546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:32,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:32,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:32,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191706776] [2022-01-18 18:01:32,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:32,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:32,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:32,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:32,431 INFO L87 Difference]: Start difference. First operand 7134 states and 24841 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:33,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:33,905 INFO L93 Difference]: Finished difference Result 9384 states and 32508 transitions. [2022-01-18 18:01:33,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 18:01:33,905 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:33,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:33,924 INFO L225 Difference]: With dead ends: 9384 [2022-01-18 18:01:33,924 INFO L226 Difference]: Without dead ends: 9341 [2022-01-18 18:01:33,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=311, Invalid=2995, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 18:01:33,925 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 403 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:33,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 1639 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:01:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-01-18 18:01:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 7152. [2022-01-18 18:01:34,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7152 states, 7151 states have (on average 3.4792336736120824) internal successors, (24880), 7151 states have internal predecessors, (24880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:34,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 24880 transitions. [2022-01-18 18:01:34,059 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 24880 transitions. Word has length 39 [2022-01-18 18:01:34,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:34,059 INFO L470 AbstractCegarLoop]: Abstraction has 7152 states and 24880 transitions. [2022-01-18 18:01:34,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:34,060 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 24880 transitions. [2022-01-18 18:01:34,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:34,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:34,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:34,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-01-18 18:01:34,072 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:34,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:34,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1867097228, now seen corresponding path program 300 times [2022-01-18 18:01:34,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:34,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900514738] [2022-01-18 18:01:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:34,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:34,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:34,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900514738] [2022-01-18 18:01:34,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900514738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:34,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:34,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:34,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736636951] [2022-01-18 18:01:34,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:34,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:34,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:34,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:34,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:34,282 INFO L87 Difference]: Start difference. First operand 7152 states and 24880 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:35,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:35,715 INFO L93 Difference]: Finished difference Result 9339 states and 32404 transitions. [2022-01-18 18:01:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 18:01:35,716 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:35,735 INFO L225 Difference]: With dead ends: 9339 [2022-01-18 18:01:35,735 INFO L226 Difference]: Without dead ends: 9276 [2022-01-18 18:01:35,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=316, Invalid=3106, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 18:01:35,735 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 404 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:35,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 1663 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 18:01:35,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9276 states. [2022-01-18 18:01:35,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9276 to 7134. [2022-01-18 18:01:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7134 states, 7133 states have (on average 3.4817047525585307) internal successors, (24835), 7133 states have internal predecessors, (24835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 24835 transitions. [2022-01-18 18:01:35,847 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 24835 transitions. Word has length 39 [2022-01-18 18:01:35,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:35,847 INFO L470 AbstractCegarLoop]: Abstraction has 7134 states and 24835 transitions. [2022-01-18 18:01:35,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 24835 transitions. [2022-01-18 18:01:35,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:35,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:35,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:35,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-01-18 18:01:35,858 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:35,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:35,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1629096184, now seen corresponding path program 301 times [2022-01-18 18:01:35,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:35,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64585390] [2022-01-18 18:01:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:35,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:36,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:36,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64585390] [2022-01-18 18:01:36,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64585390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:36,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:36,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:36,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128704677] [2022-01-18 18:01:36,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:36,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:36,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:36,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:36,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:36,067 INFO L87 Difference]: Start difference. First operand 7134 states and 24835 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 18:01:38,219 INFO L93 Difference]: Finished difference Result 10647 states and 36766 transitions. [2022-01-18 18:01:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-18 18:01:38,219 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 18:01:38,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 18:01:38,239 INFO L225 Difference]: With dead ends: 10647 [2022-01-18 18:01:38,239 INFO L226 Difference]: Without dead ends: 10604 [2022-01-18 18:01:38,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1938 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=517, Invalid=5963, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 18:01:38,240 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 512 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 3194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:38,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 2097 Invalid, 3194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 18:01:38,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-01-18 18:01:38,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 7140. [2022-01-18 18:01:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7140 states, 7139 states have (on average 3.4818602045104354) internal successors, (24857), 7139 states have internal predecessors, (24857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 24857 transitions. [2022-01-18 18:01:38,353 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 24857 transitions. Word has length 39 [2022-01-18 18:01:38,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 18:01:38,353 INFO L470 AbstractCegarLoop]: Abstraction has 7140 states and 24857 transitions. [2022-01-18 18:01:38,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 18:01:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 24857 transitions. [2022-01-18 18:01:38,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 18:01:38,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 18:01:38,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 18:01:38,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-01-18 18:01:38,364 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 18:01:38,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 18:01:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash 885272810, now seen corresponding path program 302 times [2022-01-18 18:01:38,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 18:01:38,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532994236] [2022-01-18 18:01:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 18:01:38,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 18:01:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 18:01:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 18:01:38,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 18:01:38,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532994236] [2022-01-18 18:01:38,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532994236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 18:01:38,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 18:01:38,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 18:01:38,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536962796] [2022-01-18 18:01:38,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 18:01:38,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 18:01:38,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 18:01:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 18:01:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 18:01:38,568 INFO L87 Difference]: Start difference. First operand 7140 states and 24857 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 18:01:39,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 18:01:39,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1689, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 18:01:39,643 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 197 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 18:01:39,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 1067 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 18:01:39,643 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 18:01:39,646 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-01-18 18:01:39,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-01-18 18:01:39,647 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (7140states) and FLOYD_HOARE automaton (currently 37 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (2435 states constructed, input type IntersectNwa). [2022-01-18 18:01:39,648 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 18:01:39,648 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 18:01:39,648 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 18:01:39,648 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 18:01:39,650 INFO L732 BasicCegarLoop]: Path program histogram: [302] [2022-01-18 18:01:39,651 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 18:01:39,651 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 18:01:39,653 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 06:01:39 BasicIcfg [2022-01-18 18:01:39,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 18:01:39,653 INFO L158 Benchmark]: Toolchain (without parser) took 724827.22ms. Allocated memory was 343.9MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 304.7MB in the beginning and 934.8MB in the end (delta: -630.2MB). Peak memory consumption was 394.2MB. Max. memory is 16.0GB. [2022-01-18 18:01:39,653 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 343.9MB. Free memory is still 305.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 18:01:39,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.20ms. Allocated memory is still 343.9MB. Free memory was 304.4MB in the beginning and 303.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 18:01:39,653 INFO L158 Benchmark]: Boogie Preprocessor took 10.11ms. Allocated memory is still 343.9MB. Free memory was 303.0MB in the beginning and 302.1MB in the end (delta: 858.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 18:01:39,653 INFO L158 Benchmark]: RCFGBuilder took 183.45ms. Allocated memory is still 343.9MB. Free memory was 301.9MB in the beginning and 292.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2022-01-18 18:01:39,653 INFO L158 Benchmark]: TraceAbstraction took 724611.64ms. Allocated memory was 343.9MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 291.8MB in the beginning and 934.8MB in the end (delta: -643.0MB). Peak memory consumption was 379.6MB. Max. memory is 16.0GB. [2022-01-18 18:01:39,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 343.9MB. Free memory is still 305.6MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 18.20ms. Allocated memory is still 343.9MB. Free memory was 304.4MB in the beginning and 303.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 10.11ms. Allocated memory is still 343.9MB. Free memory was 303.0MB in the beginning and 302.1MB in the end (delta: 858.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 183.45ms. Allocated memory is still 343.9MB. Free memory was 301.9MB in the beginning and 292.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 724611.64ms. Allocated memory was 343.9MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 291.8MB in the beginning and 934.8MB in the end (delta: -643.0MB). Peak memory consumption was 379.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (7140states) and FLOYD_HOARE automaton (currently 37 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (2435 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7140states) and FLOYD_HOARE automaton (currently 37 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (2435 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7140states) and FLOYD_HOARE automaton (currently 37 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (2435 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7140states) and FLOYD_HOARE automaton (currently 37 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (2435 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7140states) and FLOYD_HOARE automaton (currently 37 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (2435 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 82 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 724.5s, OverallIterations: 302, TraceHistogramMax: 1, PathProgramHistogramMax: 302, EmptinessCheckTime: 2.7s, AutomataDifference: 625.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144958 SdHoareTripleChecker+Valid, 307.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144958 mSDsluCounter, 723461 SdHoareTripleChecker+Invalid, 257.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 776445 mSDsCounter, 24357 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 986988 IncrementalHoareTripleChecker+Invalid, 1011345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24357 mSolverCounterUnsat, 71208 mSDtfsCounter, 986988 mSolverCounterSat, 2.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21957 GetRequests, 356 SyntacticMatches, 623 SemanticMatches, 20978 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514546 ImplicationChecksByTransitivity, 324.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7329occurred in iteration=286, InterpolantAutomatonStates: 20435, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 32.8s AutomataMinimizationTime, 301 MinimizatonAttempts, 1047891 StatesRemovedByMinimization, 299 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 61.9s InterpolantComputationTime, 11778 NumberOfCodeBlocks, 11778 NumberOfCodeBlocksAsserted, 302 NumberOfCheckSat, 11476 ConstructedInterpolants, 0 QuantifiedInterpolants, 177615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 302 InterpolantComputations, 302 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown