/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 15:09:52,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 15:09:52,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 15:09:52,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-28 15:09:52,516 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.epf [2022-01-28 15:09:52,528 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 15:09:52,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 15:09:52,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 15:09:52,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 15:09:52,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 15:09:52,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 15:09:52,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 15:09:52,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 15:09:52,530 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 15:09:52,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 15:09:52,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 15:09:52,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 15:09:52,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 15:09:52,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 15:09:52,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 15:09:52,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 15:09:52,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 15:09:52,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 15:09:52,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 15:09:52,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 15:09:52,721 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-28 15:09:52,722 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-28 15:09:52,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-5.wvr.bpl [2022-01-28 15:09:52,723 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-5.wvr.bpl' [2022-01-28 15:09:52,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 15:09:52,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-28 15:09:52,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 15:09:52,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 15:09:52,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 15:09:52,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,775 INFO L137 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-28 15:09:52,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 15:09:52,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 15:09:52,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 15:09:52,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 15:09:52,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 15:09:52,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 15:09:52,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 15:09:52,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 15:09:52,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/1) ... [2022-01-28 15:09:52,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 15:09:52,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 15:09:52,813 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) [2022-01-28 15:09:52,820 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 [2022-01-28 15:09:52,840 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-28 15:09:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-28 15:09:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-28 15:09:52,840 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-28 15:09:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-28 15:09:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-28 15:09:52,841 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-28 15:09:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 15:09:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 15:09:52,841 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-28 15:09:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-28 15:09:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-28 15:09:52,841 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-01-28 15:09:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-28 15:09:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-28 15:09:52,841 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-01-28 15:09:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-28 15:09:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-28 15:09:52,842 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 15:09:52,879 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 15:09:52,880 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 15:09:53,016 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 15:09:53,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 15:09:53,027 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-28 15:09:53,028 INFO L202 PluginConnector]: Adding new model ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 03:09:53 BoogieIcfgContainer [2022-01-28 15:09:53,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 15:09:53,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 15:09:53,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 15:09:53,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 15:09:53,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 03:09:52" (1/2) ... [2022-01-28 15:09:53,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f162c2 and model type ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 03:09:53, skipping insertion in model container [2022-01-28 15:09:53,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 03:09:53" (2/2) ... [2022-01-28 15:09:53,047 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-5.wvr.bpl [2022-01-28 15:09:53,050 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 15:09:53,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 15:09:53,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 15:09:53,051 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 15:09:53,098 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-01-28 15:09:53,154 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 15:09:53,169 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 [2022-01-28 15:09:53,169 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-28 15:09:53,179 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 46 transitions, 132 flow [2022-01-28 15:09:53,576 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12444 states, 12443 states have (on average 4.187253877682231) internal successors, (52102), 12443 states have internal predecessors, (52102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:53,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 12444 states, 12443 states have (on average 4.187253877682231) internal successors, (52102), 12443 states have internal predecessors, (52102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:53,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:09:53,741 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:09:53,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:09:53,743 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:09:53,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:09:53,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1867195376, now seen corresponding path program 1 times [2022-01-28 15:09:53,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:09:53,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243523104] [2022-01-28 15:09:53,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:09:53,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:09:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:09:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:09:54,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:09:54,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243523104] [2022-01-28 15:09:54,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243523104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:09:54,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:09:54,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 15:09:54,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554937478] [2022-01-28 15:09:54,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:09:54,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 15:09:54,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:09:54,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 15:09:54,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-28 15:09:54,131 INFO L87 Difference]: Start difference. First operand has 12444 states, 12443 states have (on average 4.187253877682231) internal successors, (52102), 12443 states have internal predecessors, (52102), 0 states have call successors, (0), 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 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:54,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:09:54,601 INFO L93 Difference]: Finished difference Result 19654 states and 81351 transitions. [2022-01-28 15:09:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 15:09:54,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:09:54,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:09:54,773 INFO L225 Difference]: With dead ends: 19654 [2022-01-28 15:09:54,773 INFO L226 Difference]: Without dead ends: 13110 [2022-01-28 15:09:54,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:09:54,776 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 53 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:09:54,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 77 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:09:54,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13110 states. [2022-01-28 15:09:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13110 to 13110. [2022-01-28 15:09:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13110 states, 13109 states have (on average 4.060035090395911) internal successors, (53223), 13109 states have internal predecessors, (53223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:55,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13110 states to 13110 states and 53223 transitions. [2022-01-28 15:09:55,414 INFO L78 Accepts]: Start accepts. Automaton has 13110 states and 53223 transitions. Word has length 39 [2022-01-28 15:09:55,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:09:55,415 INFO L470 AbstractCegarLoop]: Abstraction has 13110 states and 53223 transitions. [2022-01-28 15:09:55,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:55,415 INFO L276 IsEmpty]: Start isEmpty. Operand 13110 states and 53223 transitions. [2022-01-28 15:09:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:09:55,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:09:55,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:09:55,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 15:09:55,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:09:55,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:09:55,458 INFO L85 PathProgramCache]: Analyzing trace with hash -722460838, now seen corresponding path program 2 times [2022-01-28 15:09:55,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:09:55,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290627005] [2022-01-28 15:09:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:09:55,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:09:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:09:55,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:09:55,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:09:55,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290627005] [2022-01-28 15:09:55,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290627005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:09:55,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:09:55,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 15:09:55,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520990575] [2022-01-28 15:09:55,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:09:55,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 15:09:55,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:09:55,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 15:09:55,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-28 15:09:55,532 INFO L87 Difference]: Start difference. First operand 13110 states and 53223 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:55,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:09:55,873 INFO L93 Difference]: Finished difference Result 13536 states and 54819 transitions. [2022-01-28 15:09:55,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 15:09:55,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:09:55,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:09:56,003 INFO L225 Difference]: With dead ends: 13536 [2022-01-28 15:09:56,003 INFO L226 Difference]: Without dead ends: 13536 [2022-01-28 15:09:56,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:09:56,004 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 28 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:09:56,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 63 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:09:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13536 states. [2022-01-28 15:09:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13536 to 13536. [2022-01-28 15:09:56,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13536 states, 13535 states have (on average 4.050166235685261) internal successors, (54819), 13535 states have internal predecessors, (54819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:56,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 54819 transitions. [2022-01-28 15:09:56,462 INFO L78 Accepts]: Start accepts. Automaton has 13536 states and 54819 transitions. Word has length 39 [2022-01-28 15:09:56,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:09:56,462 INFO L470 AbstractCegarLoop]: Abstraction has 13536 states and 54819 transitions. [2022-01-28 15:09:56,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:56,463 INFO L276 IsEmpty]: Start isEmpty. Operand 13536 states and 54819 transitions. [2022-01-28 15:09:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:09:56,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:09:56,627 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] [2022-01-28 15:09:56,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 15:09:56,627 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:09:56,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:09:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1273280474, now seen corresponding path program 3 times [2022-01-28 15:09:56,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:09:56,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186133358] [2022-01-28 15:09:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:09:56,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:09:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:09:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:09:56,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:09:56,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186133358] [2022-01-28 15:09:56,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186133358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:09:56,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:09:56,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 15:09:56,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697865442] [2022-01-28 15:09:56,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:09:56,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 15:09:56,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:09:56,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 15:09:56,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:09:56,723 INFO L87 Difference]: Start difference. First operand 13536 states and 54819 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:57,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:09:57,345 INFO L93 Difference]: Finished difference Result 33455 states and 133148 transitions. [2022-01-28 15:09:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 15:09:57,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:09:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:09:57,643 INFO L225 Difference]: With dead ends: 33455 [2022-01-28 15:09:57,644 INFO L226 Difference]: Without dead ends: 33455 [2022-01-28 15:09:57,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:09:57,645 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 64 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:09:57,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 124 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:09:57,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33455 states. [2022-01-28 15:09:58,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33455 to 16657. [2022-01-28 15:09:58,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16657 states, 16656 states have (on average 4.000540345821325) internal successors, (66633), 16656 states have internal predecessors, (66633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:58,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16657 states to 16657 states and 66633 transitions. [2022-01-28 15:09:58,527 INFO L78 Accepts]: Start accepts. Automaton has 16657 states and 66633 transitions. Word has length 39 [2022-01-28 15:09:58,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:09:58,527 INFO L470 AbstractCegarLoop]: Abstraction has 16657 states and 66633 transitions. [2022-01-28 15:09:58,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 16657 states and 66633 transitions. [2022-01-28 15:09:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:09:58,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:09:58,574 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] [2022-01-28 15:09:58,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 15:09:58,575 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:09:58,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:09:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1587181190, now seen corresponding path program 4 times [2022-01-28 15:09:58,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:09:58,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533033172] [2022-01-28 15:09:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:09:58,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:09:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:09:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:09:58,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:09:58,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533033172] [2022-01-28 15:09:58,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533033172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:09:58,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:09:58,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 15:09:58,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835334429] [2022-01-28 15:09:58,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:09:58,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 15:09:58,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:09:58,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 15:09:58,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:09:58,637 INFO L87 Difference]: Start difference. First operand 16657 states and 66633 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:09:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:09:59,190 INFO L93 Difference]: Finished difference Result 35904 states and 141978 transitions. [2022-01-28 15:09:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 15:09:59,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:09:59,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:09:59,331 INFO L225 Difference]: With dead ends: 35904 [2022-01-28 15:09:59,331 INFO L226 Difference]: Without dead ends: 35904 [2022-01-28 15:09:59,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:09:59,338 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 79 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:09:59,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 168 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:09:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35904 states. [2022-01-28 15:09:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35904 to 18510. [2022-01-28 15:10:00,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18510 states, 18509 states have (on average 3.9846020854719324) internal successors, (73751), 18509 states have internal predecessors, (73751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:00,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18510 states to 18510 states and 73751 transitions. [2022-01-28 15:10:00,068 INFO L78 Accepts]: Start accepts. Automaton has 18510 states and 73751 transitions. Word has length 39 [2022-01-28 15:10:00,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:00,068 INFO L470 AbstractCegarLoop]: Abstraction has 18510 states and 73751 transitions. [2022-01-28 15:10:00,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:00,068 INFO L276 IsEmpty]: Start isEmpty. Operand 18510 states and 73751 transitions. [2022-01-28 15:10:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:00,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:00,299 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] [2022-01-28 15:10:00,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 15:10:00,299 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:00,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:00,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1830304244, now seen corresponding path program 5 times [2022-01-28 15:10:00,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:00,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461472795] [2022-01-28 15:10:00,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:00,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:00,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:00,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461472795] [2022-01-28 15:10:00,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461472795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:00,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:00,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:00,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084522813] [2022-01-28 15:10:00,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:00,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:00,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:00,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:00,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:00,355 INFO L87 Difference]: Start difference. First operand 18510 states and 73751 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:00,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:00,829 INFO L93 Difference]: Finished difference Result 31750 states and 125094 transitions. [2022-01-28 15:10:00,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-28 15:10:00,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:00,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:00,984 INFO L225 Difference]: With dead ends: 31750 [2022-01-28 15:10:00,984 INFO L226 Difference]: Without dead ends: 31744 [2022-01-28 15:10:00,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-28 15:10:00,991 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 91 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:00,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 221 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:01,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31744 states. [2022-01-28 15:10:01,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31744 to 18770. [2022-01-28 15:10:01,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18770 states, 18769 states have (on average 3.9722414619851882) internal successors, (74555), 18769 states have internal predecessors, (74555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:01,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18770 states to 18770 states and 74555 transitions. [2022-01-28 15:10:01,837 INFO L78 Accepts]: Start accepts. Automaton has 18770 states and 74555 transitions. Word has length 39 [2022-01-28 15:10:01,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:01,839 INFO L470 AbstractCegarLoop]: Abstraction has 18770 states and 74555 transitions. [2022-01-28 15:10:01,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:01,839 INFO L276 IsEmpty]: Start isEmpty. Operand 18770 states and 74555 transitions. [2022-01-28 15:10:01,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:01,884 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:01,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:01,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 15:10:01,885 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:01,885 INFO L85 PathProgramCache]: Analyzing trace with hash -43518730, now seen corresponding path program 6 times [2022-01-28 15:10:01,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:01,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817827904] [2022-01-28 15:10:01,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:01,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:01,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:01,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:01,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817827904] [2022-01-28 15:10:01,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817827904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:01,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:01,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 15:10:01,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382018378] [2022-01-28 15:10:01,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:01,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 15:10:01,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:01,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 15:10:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:01,932 INFO L87 Difference]: Start difference. First operand 18770 states and 74555 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:02,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:02,290 INFO L93 Difference]: Finished difference Result 36650 states and 143630 transitions. [2022-01-28 15:10:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 15:10:02,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:02,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:02,635 INFO L225 Difference]: With dead ends: 36650 [2022-01-28 15:10:02,635 INFO L226 Difference]: Without dead ends: 36632 [2022-01-28 15:10:02,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:02,639 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 80 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:02,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 168 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:02,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36632 states. [2022-01-28 15:10:03,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36632 to 19412. [2022-01-28 15:10:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19412 states, 19411 states have (on average 3.9391066920818094) internal successors, (76462), 19411 states have internal predecessors, (76462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19412 states to 19412 states and 76462 transitions. [2022-01-28 15:10:03,341 INFO L78 Accepts]: Start accepts. Automaton has 19412 states and 76462 transitions. Word has length 39 [2022-01-28 15:10:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:03,341 INFO L470 AbstractCegarLoop]: Abstraction has 19412 states and 76462 transitions. [2022-01-28 15:10:03,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:03,341 INFO L276 IsEmpty]: Start isEmpty. Operand 19412 states and 76462 transitions. [2022-01-28 15:10:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:03,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:03,385 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] [2022-01-28 15:10:03,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 15:10:03,385 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:03,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:03,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2033420634, now seen corresponding path program 7 times [2022-01-28 15:10:03,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:03,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023486289] [2022-01-28 15:10:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:03,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:03,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:03,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:03,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023486289] [2022-01-28 15:10:03,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023486289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:03,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:03,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 15:10:03,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080217270] [2022-01-28 15:10:03,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:03,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 15:10:03,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:03,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 15:10:03,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:03,431 INFO L87 Difference]: Start difference. First operand 19412 states and 76462 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:03,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:03,986 INFO L93 Difference]: Finished difference Result 35951 states and 140019 transitions. [2022-01-28 15:10:03,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 15:10:03,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:03,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:04,134 INFO L225 Difference]: With dead ends: 35951 [2022-01-28 15:10:04,134 INFO L226 Difference]: Without dead ends: 35939 [2022-01-28 15:10:04,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:04,135 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 60 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:04,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 124 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:04,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35939 states. [2022-01-28 15:10:04,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35939 to 21351. [2022-01-28 15:10:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21351 states, 21350 states have (on average 3.9075878220140514) internal successors, (83427), 21350 states have internal predecessors, (83427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21351 states to 21351 states and 83427 transitions. [2022-01-28 15:10:04,862 INFO L78 Accepts]: Start accepts. Automaton has 21351 states and 83427 transitions. Word has length 39 [2022-01-28 15:10:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:04,862 INFO L470 AbstractCegarLoop]: Abstraction has 21351 states and 83427 transitions. [2022-01-28 15:10:04,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 21351 states and 83427 transitions. [2022-01-28 15:10:04,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:04,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:04,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:04,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 15:10:04,904 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:04,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:04,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2107934072, now seen corresponding path program 8 times [2022-01-28 15:10:04,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:04,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360426998] [2022-01-28 15:10:04,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:04,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:04,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:04,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:04,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360426998] [2022-01-28 15:10:04,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360426998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:04,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:04,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 15:10:04,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475111483] [2022-01-28 15:10:04,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:04,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 15:10:04,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:04,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 15:10:04,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:04,933 INFO L87 Difference]: Start difference. First operand 21351 states and 83427 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:05,427 INFO L93 Difference]: Finished difference Result 35903 states and 138617 transitions. [2022-01-28 15:10:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 15:10:05,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:05,546 INFO L225 Difference]: With dead ends: 35903 [2022-01-28 15:10:05,547 INFO L226 Difference]: Without dead ends: 35873 [2022-01-28 15:10:05,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:05,552 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 60 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:05,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 130 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:05,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35873 states. [2022-01-28 15:10:06,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35873 to 21689. [2022-01-28 15:10:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21689 states, 21688 states have (on average 3.866008852821837) internal successors, (83846), 21688 states have internal predecessors, (83846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21689 states to 21689 states and 83846 transitions. [2022-01-28 15:10:06,369 INFO L78 Accepts]: Start accepts. Automaton has 21689 states and 83846 transitions. Word has length 39 [2022-01-28 15:10:06,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:06,369 INFO L470 AbstractCegarLoop]: Abstraction has 21689 states and 83846 transitions. [2022-01-28 15:10:06,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:06,369 INFO L276 IsEmpty]: Start isEmpty. Operand 21689 states and 83846 transitions. [2022-01-28 15:10:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:06,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:06,418 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] [2022-01-28 15:10:06,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-28 15:10:06,418 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:06,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:06,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1291371334, now seen corresponding path program 9 times [2022-01-28 15:10:06,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:06,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156255441] [2022-01-28 15:10:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:06,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:06,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:06,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:06,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156255441] [2022-01-28 15:10:06,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156255441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:06,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:06,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 15:10:06,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870843357] [2022-01-28 15:10:06,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:06,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 15:10:06,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:06,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 15:10:06,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-28 15:10:06,443 INFO L87 Difference]: Start difference. First operand 21689 states and 83846 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:06,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:06,874 INFO L93 Difference]: Finished difference Result 21647 states and 83363 transitions. [2022-01-28 15:10:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 15:10:06,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:06,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:06,970 INFO L225 Difference]: With dead ends: 21647 [2022-01-28 15:10:06,971 INFO L226 Difference]: Without dead ends: 21605 [2022-01-28 15:10:06,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:06,971 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 26 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:06,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 63 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:07,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21605 states. [2022-01-28 15:10:07,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21605 to 21403. [2022-01-28 15:10:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21403 states, 21402 states have (on average 3.863470703672554) internal successors, (82686), 21402 states have internal predecessors, (82686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21403 states to 21403 states and 82686 transitions. [2022-01-28 15:10:07,636 INFO L78 Accepts]: Start accepts. Automaton has 21403 states and 82686 transitions. Word has length 39 [2022-01-28 15:10:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:07,636 INFO L470 AbstractCegarLoop]: Abstraction has 21403 states and 82686 transitions. [2022-01-28 15:10:07,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:07,637 INFO L276 IsEmpty]: Start isEmpty. Operand 21403 states and 82686 transitions. [2022-01-28 15:10:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:07,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:07,687 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] [2022-01-28 15:10:07,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-28 15:10:07,687 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:07,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:07,687 INFO L85 PathProgramCache]: Analyzing trace with hash 462995466, now seen corresponding path program 10 times [2022-01-28 15:10:07,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983195312] [2022-01-28 15:10:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:07,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:07,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:07,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983195312] [2022-01-28 15:10:07,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983195312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:07,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:07,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 15:10:07,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267468053] [2022-01-28 15:10:07,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:07,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 15:10:07,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:07,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 15:10:07,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-28 15:10:07,724 INFO L87 Difference]: Start difference. First operand 21403 states and 82686 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:07,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:07,923 INFO L93 Difference]: Finished difference Result 21227 states and 81806 transitions. [2022-01-28 15:10:07,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 15:10:07,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:07,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:07,992 INFO L225 Difference]: With dead ends: 21227 [2022-01-28 15:10:07,992 INFO L226 Difference]: Without dead ends: 21203 [2022-01-28 15:10:07,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:07,993 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:07,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 63 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:08,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21203 states. [2022-01-28 15:10:08,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21203 to 21050. [2022-01-28 15:10:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21050 states, 21049 states have (on average 3.8641740700270795) internal successors, (81337), 21049 states have internal predecessors, (81337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21050 states to 21050 states and 81337 transitions. [2022-01-28 15:10:08,628 INFO L78 Accepts]: Start accepts. Automaton has 21050 states and 81337 transitions. Word has length 39 [2022-01-28 15:10:08,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:08,628 INFO L470 AbstractCegarLoop]: Abstraction has 21050 states and 81337 transitions. [2022-01-28 15:10:08,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:08,629 INFO L276 IsEmpty]: Start isEmpty. Operand 21050 states and 81337 transitions. [2022-01-28 15:10:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:08,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:08,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:08,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-28 15:10:08,675 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:08,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1217269632, now seen corresponding path program 11 times [2022-01-28 15:10:08,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:08,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583265893] [2022-01-28 15:10:08,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:08,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:08,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:08,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583265893] [2022-01-28 15:10:08,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583265893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:08,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:08,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:08,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522767828] [2022-01-28 15:10:08,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:08,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:08,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:08,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:08,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:08,727 INFO L87 Difference]: Start difference. First operand 21050 states and 81337 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:09,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:09,330 INFO L93 Difference]: Finished difference Result 41364 states and 158003 transitions. [2022-01-28 15:10:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 15:10:09,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:09,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:09,488 INFO L225 Difference]: With dead ends: 41364 [2022-01-28 15:10:09,489 INFO L226 Difference]: Without dead ends: 41364 [2022-01-28 15:10:09,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:09,490 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 105 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:09,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 218 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 15:10:09,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41364 states. [2022-01-28 15:10:10,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41364 to 24666. [2022-01-28 15:10:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24666 states, 24665 states have (on average 3.801054125278735) internal successors, (93753), 24665 states have internal predecessors, (93753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:10,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24666 states to 24666 states and 93753 transitions. [2022-01-28 15:10:10,406 INFO L78 Accepts]: Start accepts. Automaton has 24666 states and 93753 transitions. Word has length 39 [2022-01-28 15:10:10,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:10,407 INFO L470 AbstractCegarLoop]: Abstraction has 24666 states and 93753 transitions. [2022-01-28 15:10:10,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:10,407 INFO L276 IsEmpty]: Start isEmpty. Operand 24666 states and 93753 transitions. [2022-01-28 15:10:10,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:10,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:10,635 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] [2022-01-28 15:10:10,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-28 15:10:10,636 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:10,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:10,636 INFO L85 PathProgramCache]: Analyzing trace with hash -320720194, now seen corresponding path program 12 times [2022-01-28 15:10:10,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:10,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125113682] [2022-01-28 15:10:10,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:10,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:10,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:10,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125113682] [2022-01-28 15:10:10,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125113682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:10,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:10,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 15:10:10,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730439528] [2022-01-28 15:10:10,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:10,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 15:10:10,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:10,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 15:10:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-28 15:10:10,671 INFO L87 Difference]: Start difference. First operand 24666 states and 93753 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:10,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:10,888 INFO L93 Difference]: Finished difference Result 24060 states and 91079 transitions. [2022-01-28 15:10:10,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 15:10:10,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:10,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:10,960 INFO L225 Difference]: With dead ends: 24060 [2022-01-28 15:10:10,961 INFO L226 Difference]: Without dead ends: 23997 [2022-01-28 15:10:10,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:10,961 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 23 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:10,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 63 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:11,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23997 states. [2022-01-28 15:10:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23997 to 23727. [2022-01-28 15:10:11,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23727 states, 23726 states have (on average 3.8022844137233416) internal successors, (90213), 23726 states have internal predecessors, (90213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23727 states to 23727 states and 90213 transitions. [2022-01-28 15:10:11,575 INFO L78 Accepts]: Start accepts. Automaton has 23727 states and 90213 transitions. Word has length 39 [2022-01-28 15:10:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:11,575 INFO L470 AbstractCegarLoop]: Abstraction has 23727 states and 90213 transitions. [2022-01-28 15:10:11,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 23727 states and 90213 transitions. [2022-01-28 15:10:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:11,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:11,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:11,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-28 15:10:11,619 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:11,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash -400455912, now seen corresponding path program 13 times [2022-01-28 15:10:11,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:11,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907017680] [2022-01-28 15:10:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:11,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:11,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:11,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:11,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907017680] [2022-01-28 15:10:11,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907017680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:11,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:11,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 15:10:11,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225473406] [2022-01-28 15:10:11,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:11,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 15:10:11,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:11,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 15:10:11,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:11,712 INFO L87 Difference]: Start difference. First operand 23727 states and 90213 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:12,170 INFO L93 Difference]: Finished difference Result 33544 states and 125015 transitions. [2022-01-28 15:10:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 15:10:12,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:12,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:12,286 INFO L225 Difference]: With dead ends: 33544 [2022-01-28 15:10:12,287 INFO L226 Difference]: Without dead ends: 33416 [2022-01-28 15:10:12,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:12,287 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 66 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:12,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 93 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:12,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33416 states. [2022-01-28 15:10:12,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33416 to 20628. [2022-01-28 15:10:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20628 states, 20627 states have (on average 3.7171668201871335) internal successors, (76674), 20627 states have internal predecessors, (76674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20628 states to 20628 states and 76674 transitions. [2022-01-28 15:10:13,006 INFO L78 Accepts]: Start accepts. Automaton has 20628 states and 76674 transitions. Word has length 39 [2022-01-28 15:10:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:13,006 INFO L470 AbstractCegarLoop]: Abstraction has 20628 states and 76674 transitions. [2022-01-28 15:10:13,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 20628 states and 76674 transitions. [2022-01-28 15:10:13,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:13,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:13,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:13,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-28 15:10:13,048 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:13,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:13,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1449048776, now seen corresponding path program 14 times [2022-01-28 15:10:13,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:13,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656541855] [2022-01-28 15:10:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:13,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:13,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:13,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656541855] [2022-01-28 15:10:13,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656541855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:13,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:13,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 15:10:13,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962498452] [2022-01-28 15:10:13,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:13,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 15:10:13,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:13,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 15:10:13,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:13,085 INFO L87 Difference]: Start difference. First operand 20628 states and 76674 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:13,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:13,337 INFO L93 Difference]: Finished difference Result 33622 states and 124249 transitions. [2022-01-28 15:10:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 15:10:13,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:13,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:13,438 INFO L225 Difference]: With dead ends: 33622 [2022-01-28 15:10:13,438 INFO L226 Difference]: Without dead ends: 33566 [2022-01-28 15:10:13,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:13,439 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 60 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:13,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 99 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:13,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33566 states. [2022-01-28 15:10:14,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33566 to 20818. [2022-01-28 15:10:14,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20818 states, 20817 states have (on average 3.6923668155834175) internal successors, (76864), 20817 states have internal predecessors, (76864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20818 states to 20818 states and 76864 transitions. [2022-01-28 15:10:14,151 INFO L78 Accepts]: Start accepts. Automaton has 20818 states and 76864 transitions. Word has length 39 [2022-01-28 15:10:14,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:14,151 INFO L470 AbstractCegarLoop]: Abstraction has 20818 states and 76864 transitions. [2022-01-28 15:10:14,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:14,152 INFO L276 IsEmpty]: Start isEmpty. Operand 20818 states and 76864 transitions. [2022-01-28 15:10:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:14,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:14,329 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] [2022-01-28 15:10:14,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-28 15:10:14,329 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:14,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:14,329 INFO L85 PathProgramCache]: Analyzing trace with hash 112146744, now seen corresponding path program 15 times [2022-01-28 15:10:14,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:14,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142624353] [2022-01-28 15:10:14,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:14,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:14,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:14,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:14,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142624353] [2022-01-28 15:10:14,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142624353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:14,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:14,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 15:10:14,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989731158] [2022-01-28 15:10:14,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:14,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 15:10:14,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 15:10:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:14,366 INFO L87 Difference]: Start difference. First operand 20818 states and 76864 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:14,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:14,677 INFO L93 Difference]: Finished difference Result 36117 states and 131263 transitions. [2022-01-28 15:10:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 15:10:14,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:14,790 INFO L225 Difference]: With dead ends: 36117 [2022-01-28 15:10:14,790 INFO L226 Difference]: Without dead ends: 35877 [2022-01-28 15:10:14,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:14,792 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 91 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:14,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 141 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:14,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35877 states. [2022-01-28 15:10:15,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35877 to 21634. [2022-01-28 15:10:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21634 states, 21633 states have (on average 3.6624139046826607) internal successors, (79229), 21633 states have internal predecessors, (79229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:15,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21634 states to 21634 states and 79229 transitions. [2022-01-28 15:10:15,510 INFO L78 Accepts]: Start accepts. Automaton has 21634 states and 79229 transitions. Word has length 39 [2022-01-28 15:10:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:15,511 INFO L470 AbstractCegarLoop]: Abstraction has 21634 states and 79229 transitions. [2022-01-28 15:10:15,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:15,511 INFO L276 IsEmpty]: Start isEmpty. Operand 21634 states and 79229 transitions. [2022-01-28 15:10:15,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:15,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:15,549 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] [2022-01-28 15:10:15,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-28 15:10:15,549 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:15,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:15,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1430055142, now seen corresponding path program 16 times [2022-01-28 15:10:15,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:15,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024652314] [2022-01-28 15:10:15,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:15,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:15,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:15,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024652314] [2022-01-28 15:10:15,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024652314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:15,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:15,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:15,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759979115] [2022-01-28 15:10:15,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:15,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:15,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:15,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:15,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:15,595 INFO L87 Difference]: Start difference. First operand 21634 states and 79229 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:16,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:16,076 INFO L93 Difference]: Finished difference Result 38178 states and 137087 transitions. [2022-01-28 15:10:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 15:10:16,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:16,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:16,193 INFO L225 Difference]: With dead ends: 38178 [2022-01-28 15:10:16,193 INFO L226 Difference]: Without dead ends: 37920 [2022-01-28 15:10:16,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:16,193 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 127 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:16,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 172 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:16,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37920 states. [2022-01-28 15:10:16,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37920 to 22991. [2022-01-28 15:10:16,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22991 states, 22990 states have (on average 3.6151805132666377) internal successors, (83113), 22990 states have internal predecessors, (83113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:16,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22991 states to 22991 states and 83113 transitions. [2022-01-28 15:10:16,925 INFO L78 Accepts]: Start accepts. Automaton has 22991 states and 83113 transitions. Word has length 39 [2022-01-28 15:10:16,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:16,925 INFO L470 AbstractCegarLoop]: Abstraction has 22991 states and 83113 transitions. [2022-01-28 15:10:16,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:16,925 INFO L276 IsEmpty]: Start isEmpty. Operand 22991 states and 83113 transitions. [2022-01-28 15:10:16,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:16,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:16,967 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] [2022-01-28 15:10:16,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-28 15:10:16,968 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:16,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:16,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1982775064, now seen corresponding path program 17 times [2022-01-28 15:10:16,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:16,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946848753] [2022-01-28 15:10:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:16,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:17,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:17,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946848753] [2022-01-28 15:10:17,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946848753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:17,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:17,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 15:10:17,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197029526] [2022-01-28 15:10:17,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:17,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 15:10:17,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 15:10:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:17,050 INFO L87 Difference]: Start difference. First operand 22991 states and 83113 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:17,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:17,509 INFO L93 Difference]: Finished difference Result 37550 states and 133913 transitions. [2022-01-28 15:10:17,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 15:10:17,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:17,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:17,616 INFO L225 Difference]: With dead ends: 37550 [2022-01-28 15:10:17,616 INFO L226 Difference]: Without dead ends: 37350 [2022-01-28 15:10:17,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:17,617 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 98 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:17,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 143 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:17,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37350 states. [2022-01-28 15:10:18,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37350 to 22436. [2022-01-28 15:10:18,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22436 states, 22435 states have (on average 3.5778916870960553) internal successors, (80270), 22435 states have internal predecessors, (80270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:18,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22436 states to 22436 states and 80270 transitions. [2022-01-28 15:10:18,286 INFO L78 Accepts]: Start accepts. Automaton has 22436 states and 80270 transitions. Word has length 39 [2022-01-28 15:10:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:18,286 INFO L470 AbstractCegarLoop]: Abstraction has 22436 states and 80270 transitions. [2022-01-28 15:10:18,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:18,286 INFO L276 IsEmpty]: Start isEmpty. Operand 22436 states and 80270 transitions. [2022-01-28 15:10:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:18,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:18,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:18,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-28 15:10:18,326 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:18,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1245339898, now seen corresponding path program 18 times [2022-01-28 15:10:18,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:18,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075355721] [2022-01-28 15:10:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:18,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:18,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:18,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075355721] [2022-01-28 15:10:18,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075355721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:18,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:18,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:18,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380017233] [2022-01-28 15:10:18,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:18,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:18,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:18,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:18,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:18,375 INFO L87 Difference]: Start difference. First operand 22436 states and 80270 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:18,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:18,681 INFO L93 Difference]: Finished difference Result 35683 states and 123807 transitions. [2022-01-28 15:10:18,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 15:10:18,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:18,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:18,976 INFO L225 Difference]: With dead ends: 35683 [2022-01-28 15:10:18,976 INFO L226 Difference]: Without dead ends: 35127 [2022-01-28 15:10:18,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:18,977 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 118 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:18,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 170 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:19,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35127 states. [2022-01-28 15:10:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35127 to 21141. [2022-01-28 15:10:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21141 states, 21140 states have (on average 3.479091769157994) internal successors, (73548), 21140 states have internal predecessors, (73548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:19,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21141 states to 21141 states and 73548 transitions. [2022-01-28 15:10:19,660 INFO L78 Accepts]: Start accepts. Automaton has 21141 states and 73548 transitions. Word has length 39 [2022-01-28 15:10:19,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:19,660 INFO L470 AbstractCegarLoop]: Abstraction has 21141 states and 73548 transitions. [2022-01-28 15:10:19,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:19,660 INFO L276 IsEmpty]: Start isEmpty. Operand 21141 states and 73548 transitions. [2022-01-28 15:10:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:19,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:19,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:19,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-28 15:10:19,695 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:19,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1666939286, now seen corresponding path program 19 times [2022-01-28 15:10:19,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:19,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823968611] [2022-01-28 15:10:19,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:19,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:19,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:19,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:19,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823968611] [2022-01-28 15:10:19,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823968611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:19,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:19,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 15:10:19,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173661334] [2022-01-28 15:10:19,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:19,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 15:10:19,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:19,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 15:10:19,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:19,748 INFO L87 Difference]: Start difference. First operand 21141 states and 73548 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:19,983 INFO L93 Difference]: Finished difference Result 34526 states and 119373 transitions. [2022-01-28 15:10:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 15:10:19,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:19,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:20,081 INFO L225 Difference]: With dead ends: 34526 [2022-01-28 15:10:20,081 INFO L226 Difference]: Without dead ends: 34342 [2022-01-28 15:10:20,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:20,082 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 61 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:20,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 99 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:20,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34342 states. [2022-01-28 15:10:20,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34342 to 20667. [2022-01-28 15:10:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20667 states, 20666 states have (on average 3.459498693506242) internal successors, (71494), 20666 states have internal predecessors, (71494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20667 states to 20667 states and 71494 transitions. [2022-01-28 15:10:20,743 INFO L78 Accepts]: Start accepts. Automaton has 20667 states and 71494 transitions. Word has length 39 [2022-01-28 15:10:20,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:20,743 INFO L470 AbstractCegarLoop]: Abstraction has 20667 states and 71494 transitions. [2022-01-28 15:10:20,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:20,743 INFO L276 IsEmpty]: Start isEmpty. Operand 20667 states and 71494 transitions. [2022-01-28 15:10:20,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:20,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:20,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:20,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-28 15:10:20,782 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:20,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:20,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2060605992, now seen corresponding path program 20 times [2022-01-28 15:10:20,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:20,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037353204] [2022-01-28 15:10:20,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:20,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:20,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:20,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:20,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037353204] [2022-01-28 15:10:20,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037353204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:20,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:20,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:20,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128335812] [2022-01-28 15:10:20,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:20,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:20,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:20,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:20,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:20,848 INFO L87 Difference]: Start difference. First operand 20667 states and 71494 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:21,370 INFO L93 Difference]: Finished difference Result 30341 states and 101554 transitions. [2022-01-28 15:10:21,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 15:10:21,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:21,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:21,460 INFO L225 Difference]: With dead ends: 30341 [2022-01-28 15:10:21,460 INFO L226 Difference]: Without dead ends: 28975 [2022-01-28 15:10:21,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:21,461 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 114 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:21,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 187 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:21,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28975 states. [2022-01-28 15:10:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28975 to 18475. [2022-01-28 15:10:22,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18475 states, 18474 states have (on average 3.362725993287864) internal successors, (62123), 18474 states have internal predecessors, (62123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18475 states to 18475 states and 62123 transitions. [2022-01-28 15:10:22,157 INFO L78 Accepts]: Start accepts. Automaton has 18475 states and 62123 transitions. Word has length 39 [2022-01-28 15:10:22,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:22,157 INFO L470 AbstractCegarLoop]: Abstraction has 18475 states and 62123 transitions. [2022-01-28 15:10:22,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:22,157 INFO L276 IsEmpty]: Start isEmpty. Operand 18475 states and 62123 transitions. [2022-01-28 15:10:22,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:22,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:22,191 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] [2022-01-28 15:10:22,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-28 15:10:22,191 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:22,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1275932474, now seen corresponding path program 21 times [2022-01-28 15:10:22,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:22,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969785890] [2022-01-28 15:10:22,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:22,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:22,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:22,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969785890] [2022-01-28 15:10:22,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969785890] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:22,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:22,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:22,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180460753] [2022-01-28 15:10:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:22,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:22,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:22,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:22,241 INFO L87 Difference]: Start difference. First operand 18475 states and 62123 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:22,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:22,517 INFO L93 Difference]: Finished difference Result 28267 states and 94087 transitions. [2022-01-28 15:10:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 15:10:22,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:22,589 INFO L225 Difference]: With dead ends: 28267 [2022-01-28 15:10:22,589 INFO L226 Difference]: Without dead ends: 28159 [2022-01-28 15:10:22,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:22,590 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 118 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:22,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 205 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28159 states. [2022-01-28 15:10:23,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28159 to 18449. [2022-01-28 15:10:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18449 states, 18448 states have (on average 3.357328707718994) internal successors, (61936), 18448 states have internal predecessors, (61936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18449 states to 18449 states and 61936 transitions. [2022-01-28 15:10:23,126 INFO L78 Accepts]: Start accepts. Automaton has 18449 states and 61936 transitions. Word has length 39 [2022-01-28 15:10:23,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:23,127 INFO L470 AbstractCegarLoop]: Abstraction has 18449 states and 61936 transitions. [2022-01-28 15:10:23,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:23,127 INFO L276 IsEmpty]: Start isEmpty. Operand 18449 states and 61936 transitions. [2022-01-28 15:10:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:23,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:23,158 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] [2022-01-28 15:10:23,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-28 15:10:23,158 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:23,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:23,160 INFO L85 PathProgramCache]: Analyzing trace with hash 324966598, now seen corresponding path program 22 times [2022-01-28 15:10:23,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:23,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555545703] [2022-01-28 15:10:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:23,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:23,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:23,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555545703] [2022-01-28 15:10:23,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555545703] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:23,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:23,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 15:10:23,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755575399] [2022-01-28 15:10:23,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:23,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 15:10:23,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:23,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 15:10:23,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-28 15:10:23,215 INFO L87 Difference]: Start difference. First operand 18449 states and 61936 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:23,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:23,570 INFO L93 Difference]: Finished difference Result 28032 states and 93171 transitions. [2022-01-28 15:10:23,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 15:10:23,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:23,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:23,791 INFO L225 Difference]: With dead ends: 28032 [2022-01-28 15:10:23,791 INFO L226 Difference]: Without dead ends: 27672 [2022-01-28 15:10:23,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-28 15:10:23,792 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 152 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:23,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 229 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:23,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27672 states. [2022-01-28 15:10:24,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27672 to 18187. [2022-01-28 15:10:24,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18187 states, 18186 states have (on average 3.346530298031453) internal successors, (60860), 18186 states have internal predecessors, (60860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:24,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18187 states to 18187 states and 60860 transitions. [2022-01-28 15:10:24,173 INFO L78 Accepts]: Start accepts. Automaton has 18187 states and 60860 transitions. Word has length 39 [2022-01-28 15:10:24,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:24,173 INFO L470 AbstractCegarLoop]: Abstraction has 18187 states and 60860 transitions. [2022-01-28 15:10:24,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:24,173 INFO L276 IsEmpty]: Start isEmpty. Operand 18187 states and 60860 transitions. [2022-01-28 15:10:24,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:24,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:24,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:24,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-28 15:10:24,203 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:24,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:24,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1353975836, now seen corresponding path program 23 times [2022-01-28 15:10:24,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:24,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175405970] [2022-01-28 15:10:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:24,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:24,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:24,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175405970] [2022-01-28 15:10:24,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175405970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:24,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:24,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 15:10:24,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783725056] [2022-01-28 15:10:24,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:24,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 15:10:24,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:24,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 15:10:24,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:24,247 INFO L87 Difference]: Start difference. First operand 18187 states and 60860 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:24,831 INFO L93 Difference]: Finished difference Result 27773 states and 91779 transitions. [2022-01-28 15:10:24,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 15:10:24,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:24,897 INFO L225 Difference]: With dead ends: 27773 [2022-01-28 15:10:24,898 INFO L226 Difference]: Without dead ends: 27521 [2022-01-28 15:10:24,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-28 15:10:24,898 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 190 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:24,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 325 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 15:10:24,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27521 states. [2022-01-28 15:10:25,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27521 to 18576. [2022-01-28 15:10:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18576 states, 18575 states have (on average 3.3176312247644684) internal successors, (61625), 18575 states have internal predecessors, (61625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:25,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18576 states to 18576 states and 61625 transitions. [2022-01-28 15:10:25,438 INFO L78 Accepts]: Start accepts. Automaton has 18576 states and 61625 transitions. Word has length 39 [2022-01-28 15:10:25,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:25,438 INFO L470 AbstractCegarLoop]: Abstraction has 18576 states and 61625 transitions. [2022-01-28 15:10:25,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 18576 states and 61625 transitions. [2022-01-28 15:10:25,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:25,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:25,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:25,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-28 15:10:25,470 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1768808102, now seen corresponding path program 24 times [2022-01-28 15:10:25,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:25,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969257898] [2022-01-28 15:10:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:25,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:25,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:25,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969257898] [2022-01-28 15:10:25,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969257898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:25,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:25,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:25,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809413513] [2022-01-28 15:10:25,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:25,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:25,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:25,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:25,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:25,506 INFO L87 Difference]: Start difference. First operand 18576 states and 61625 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:25,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:25,787 INFO L93 Difference]: Finished difference Result 28814 states and 94330 transitions. [2022-01-28 15:10:25,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 15:10:25,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:25,856 INFO L225 Difference]: With dead ends: 28814 [2022-01-28 15:10:25,856 INFO L226 Difference]: Without dead ends: 28630 [2022-01-28 15:10:25,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:25,857 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 117 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:25,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 195 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:25,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28630 states. [2022-01-28 15:10:26,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28630 to 18552. [2022-01-28 15:10:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18552 states, 18551 states have (on average 3.308986038488491) internal successors, (61385), 18551 states have internal predecessors, (61385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:26,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18552 states to 18552 states and 61385 transitions. [2022-01-28 15:10:26,410 INFO L78 Accepts]: Start accepts. Automaton has 18552 states and 61385 transitions. Word has length 39 [2022-01-28 15:10:26,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:26,410 INFO L470 AbstractCegarLoop]: Abstraction has 18552 states and 61385 transitions. [2022-01-28 15:10:26,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:26,411 INFO L276 IsEmpty]: Start isEmpty. Operand 18552 states and 61385 transitions. [2022-01-28 15:10:26,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:26,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:26,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:26,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-28 15:10:26,442 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:26,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:26,443 INFO L85 PathProgramCache]: Analyzing trace with hash -120493402, now seen corresponding path program 25 times [2022-01-28 15:10:26,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:26,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137778679] [2022-01-28 15:10:26,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:26,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:26,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:26,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:26,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137778679] [2022-01-28 15:10:26,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137778679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:26,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:26,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 15:10:26,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007139200] [2022-01-28 15:10:26,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:26,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 15:10:26,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:26,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 15:10:26,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-28 15:10:26,502 INFO L87 Difference]: Start difference. First operand 18552 states and 61385 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:26,839 INFO L93 Difference]: Finished difference Result 28644 states and 93689 transitions. [2022-01-28 15:10:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 15:10:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:27,074 INFO L225 Difference]: With dead ends: 28644 [2022-01-28 15:10:27,074 INFO L226 Difference]: Without dead ends: 27824 [2022-01-28 15:10:27,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-28 15:10:27,075 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 138 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:27,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 245 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:27,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27824 states. [2022-01-28 15:10:27,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27824 to 17898. [2022-01-28 15:10:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17898 states, 17897 states have (on average 3.2920601218081242) internal successors, (58918), 17897 states have internal predecessors, (58918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:27,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17898 states to 17898 states and 58918 transitions. [2022-01-28 15:10:27,484 INFO L78 Accepts]: Start accepts. Automaton has 17898 states and 58918 transitions. Word has length 39 [2022-01-28 15:10:27,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:27,484 INFO L470 AbstractCegarLoop]: Abstraction has 17898 states and 58918 transitions. [2022-01-28 15:10:27,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 17898 states and 58918 transitions. [2022-01-28 15:10:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:27,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:27,519 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] [2022-01-28 15:10:27,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-28 15:10:27,519 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:27,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:27,520 INFO L85 PathProgramCache]: Analyzing trace with hash -867479100, now seen corresponding path program 26 times [2022-01-28 15:10:27,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:27,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185111618] [2022-01-28 15:10:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:27,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:27,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:27,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185111618] [2022-01-28 15:10:27,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185111618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:27,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:27,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 15:10:27,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058218834] [2022-01-28 15:10:27,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:27,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 15:10:27,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:27,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 15:10:27,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:27,564 INFO L87 Difference]: Start difference. First operand 17898 states and 58918 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:28,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:28,062 INFO L93 Difference]: Finished difference Result 28142 states and 91490 transitions. [2022-01-28 15:10:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 15:10:28,063 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:28,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:28,129 INFO L225 Difference]: With dead ends: 28142 [2022-01-28 15:10:28,130 INFO L226 Difference]: Without dead ends: 26796 [2022-01-28 15:10:28,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-28 15:10:28,130 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 180 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:28,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 270 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 15:10:28,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26796 states. [2022-01-28 15:10:28,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26796 to 17614. [2022-01-28 15:10:28,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17614 states, 17613 states have (on average 3.2751376823936864) internal successors, (57685), 17613 states have internal predecessors, (57685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17614 states to 17614 states and 57685 transitions. [2022-01-28 15:10:28,686 INFO L78 Accepts]: Start accepts. Automaton has 17614 states and 57685 transitions. Word has length 39 [2022-01-28 15:10:28,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:28,686 INFO L470 AbstractCegarLoop]: Abstraction has 17614 states and 57685 transitions. [2022-01-28 15:10:28,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 17614 states and 57685 transitions. [2022-01-28 15:10:28,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:28,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:28,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:28,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-28 15:10:28,716 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:28,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:28,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1710788856, now seen corresponding path program 27 times [2022-01-28 15:10:28,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:28,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264518217] [2022-01-28 15:10:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:28,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:28,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:28,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:28,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264518217] [2022-01-28 15:10:28,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264518217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:28,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:28,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 15:10:28,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478571944] [2022-01-28 15:10:28,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:28,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 15:10:28,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:28,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 15:10:28,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:28,789 INFO L87 Difference]: Start difference. First operand 17614 states and 57685 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:29,195 INFO L93 Difference]: Finished difference Result 27764 states and 89075 transitions. [2022-01-28 15:10:29,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 15:10:29,195 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:29,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:29,262 INFO L225 Difference]: With dead ends: 27764 [2022-01-28 15:10:29,263 INFO L226 Difference]: Without dead ends: 26272 [2022-01-28 15:10:29,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-28 15:10:29,264 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 157 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:29,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 316 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:29,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26272 states. [2022-01-28 15:10:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26272 to 16042. [2022-01-28 15:10:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16042 states, 16041 states have (on average 3.2308459572345862) internal successors, (51826), 16041 states have internal predecessors, (51826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16042 states to 16042 states and 51826 transitions. [2022-01-28 15:10:29,756 INFO L78 Accepts]: Start accepts. Automaton has 16042 states and 51826 transitions. Word has length 39 [2022-01-28 15:10:29,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:29,756 INFO L470 AbstractCegarLoop]: Abstraction has 16042 states and 51826 transitions. [2022-01-28 15:10:29,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:29,757 INFO L276 IsEmpty]: Start isEmpty. Operand 16042 states and 51826 transitions. [2022-01-28 15:10:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:29,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:29,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:29,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-28 15:10:29,784 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1035052520, now seen corresponding path program 28 times [2022-01-28 15:10:29,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:29,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539876358] [2022-01-28 15:10:29,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:29,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:29,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:29,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:29,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539876358] [2022-01-28 15:10:29,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539876358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:29,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:29,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 15:10:29,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086598717] [2022-01-28 15:10:29,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:29,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 15:10:29,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:29,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 15:10:29,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:29,819 INFO L87 Difference]: Start difference. First operand 16042 states and 51826 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:30,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:30,011 INFO L93 Difference]: Finished difference Result 26251 states and 83635 transitions. [2022-01-28 15:10:30,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 15:10:30,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:30,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:30,079 INFO L225 Difference]: With dead ends: 26251 [2022-01-28 15:10:30,079 INFO L226 Difference]: Without dead ends: 25907 [2022-01-28 15:10:30,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:30,080 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 61 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:30,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 97 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:30,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25907 states. [2022-01-28 15:10:30,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25907 to 15530. [2022-01-28 15:10:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15530 states, 15529 states have (on average 3.2065168394616523) internal successors, (49794), 15529 states have internal predecessors, (49794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15530 states to 15530 states and 49794 transitions. [2022-01-28 15:10:30,544 INFO L78 Accepts]: Start accepts. Automaton has 15530 states and 49794 transitions. Word has length 39 [2022-01-28 15:10:30,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:30,544 INFO L470 AbstractCegarLoop]: Abstraction has 15530 states and 49794 transitions. [2022-01-28 15:10:30,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:30,544 INFO L276 IsEmpty]: Start isEmpty. Operand 15530 states and 49794 transitions. [2022-01-28 15:10:30,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:30,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:30,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:30,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-28 15:10:30,570 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:30,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:30,571 INFO L85 PathProgramCache]: Analyzing trace with hash 468490326, now seen corresponding path program 29 times [2022-01-28 15:10:30,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:30,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37799722] [2022-01-28 15:10:30,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:30,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:30,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:30,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37799722] [2022-01-28 15:10:30,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37799722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:30,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:30,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:30,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364698061] [2022-01-28 15:10:30,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:30,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:30,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:30,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:30,616 INFO L87 Difference]: Start difference. First operand 15530 states and 49794 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:30,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:30,866 INFO L93 Difference]: Finished difference Result 19376 states and 57898 transitions. [2022-01-28 15:10:30,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 15:10:30,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:30,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:30,904 INFO L225 Difference]: With dead ends: 19376 [2022-01-28 15:10:30,904 INFO L226 Difference]: Without dead ends: 17805 [2022-01-28 15:10:30,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:30,905 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 119 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:30,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 213 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17805 states. [2022-01-28 15:10:31,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17805 to 10863. [2022-01-28 15:10:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 10862 states have (on average 3.029736696740932) internal successors, (32909), 10862 states have internal predecessors, (32909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 32909 transitions. [2022-01-28 15:10:31,262 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 32909 transitions. Word has length 39 [2022-01-28 15:10:31,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:31,262 INFO L470 AbstractCegarLoop]: Abstraction has 10863 states and 32909 transitions. [2022-01-28 15:10:31,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:31,262 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 32909 transitions. [2022-01-28 15:10:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:31,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:31,277 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] [2022-01-28 15:10:31,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-28 15:10:31,277 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:31,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:31,278 INFO L85 PathProgramCache]: Analyzing trace with hash -757121002, now seen corresponding path program 30 times [2022-01-28 15:10:31,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:31,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668748433] [2022-01-28 15:10:31,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:31,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:31,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:31,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668748433] [2022-01-28 15:10:31,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668748433] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:31,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:31,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 15:10:31,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024036667] [2022-01-28 15:10:31,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:31,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 15:10:31,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:31,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 15:10:31,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-28 15:10:31,321 INFO L87 Difference]: Start difference. First operand 10863 states and 32909 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:31,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:31,581 INFO L93 Difference]: Finished difference Result 16060 states and 47771 transitions. [2022-01-28 15:10:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 15:10:31,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:31,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:31,615 INFO L225 Difference]: With dead ends: 16060 [2022-01-28 15:10:31,615 INFO L226 Difference]: Without dead ends: 15380 [2022-01-28 15:10:31,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-28 15:10:31,616 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 142 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:31,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 232 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15380 states. [2022-01-28 15:10:31,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15380 to 10289. [2022-01-28 15:10:31,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10289 states, 10288 states have (on average 3.010303265940902) internal successors, (30970), 10288 states have internal predecessors, (30970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:31,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10289 states to 10289 states and 30970 transitions. [2022-01-28 15:10:31,823 INFO L78 Accepts]: Start accepts. Automaton has 10289 states and 30970 transitions. Word has length 39 [2022-01-28 15:10:31,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:31,824 INFO L470 AbstractCegarLoop]: Abstraction has 10289 states and 30970 transitions. [2022-01-28 15:10:31,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:31,824 INFO L276 IsEmpty]: Start isEmpty. Operand 10289 states and 30970 transitions. [2022-01-28 15:10:31,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:31,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:31,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:31,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-28 15:10:31,839 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:31,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:31,840 INFO L85 PathProgramCache]: Analyzing trace with hash 942811704, now seen corresponding path program 31 times [2022-01-28 15:10:31,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:31,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453306904] [2022-01-28 15:10:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:31,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:31,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:31,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453306904] [2022-01-28 15:10:31,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453306904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:31,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:31,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 15:10:31,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066835255] [2022-01-28 15:10:31,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:31,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 15:10:31,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:31,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 15:10:31,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:31,888 INFO L87 Difference]: Start difference. First operand 10289 states and 30970 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:32,192 INFO L93 Difference]: Finished difference Result 14404 states and 42007 transitions. [2022-01-28 15:10:32,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 15:10:32,192 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:32,223 INFO L225 Difference]: With dead ends: 14404 [2022-01-28 15:10:32,223 INFO L226 Difference]: Without dead ends: 13806 [2022-01-28 15:10:32,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-28 15:10:32,224 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 170 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:32,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 289 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:32,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13806 states. [2022-01-28 15:10:32,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13806 to 9515. [2022-01-28 15:10:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9515 states, 9514 states have (on average 2.974248475930208) internal successors, (28297), 9514 states have internal predecessors, (28297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9515 states to 9515 states and 28297 transitions. [2022-01-28 15:10:32,489 INFO L78 Accepts]: Start accepts. Automaton has 9515 states and 28297 transitions. Word has length 39 [2022-01-28 15:10:32,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:32,489 INFO L470 AbstractCegarLoop]: Abstraction has 9515 states and 28297 transitions. [2022-01-28 15:10:32,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:32,489 INFO L276 IsEmpty]: Start isEmpty. Operand 9515 states and 28297 transitions. [2022-01-28 15:10:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:32,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:32,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:32,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-28 15:10:32,504 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:32,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:32,504 INFO L85 PathProgramCache]: Analyzing trace with hash 185030150, now seen corresponding path program 32 times [2022-01-28 15:10:32,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:32,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727305434] [2022-01-28 15:10:32,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:32,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:32,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:32,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727305434] [2022-01-28 15:10:32,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727305434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:32,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:32,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:32,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819824271] [2022-01-28 15:10:32,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:32,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:32,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:32,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:32,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:32,552 INFO L87 Difference]: Start difference. First operand 9515 states and 28297 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:32,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:32,798 INFO L93 Difference]: Finished difference Result 14734 states and 43845 transitions. [2022-01-28 15:10:32,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 15:10:32,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:32,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:32,828 INFO L225 Difference]: With dead ends: 14734 [2022-01-28 15:10:32,828 INFO L226 Difference]: Without dead ends: 14686 [2022-01-28 15:10:32,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:32,829 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 111 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:32,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 241 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:32,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14686 states. [2022-01-28 15:10:32,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14686 to 9376. [2022-01-28 15:10:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9376 states, 9375 states have (on average 2.9634133333333335) internal successors, (27782), 9375 states have internal predecessors, (27782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:33,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9376 states to 9376 states and 27782 transitions. [2022-01-28 15:10:33,016 INFO L78 Accepts]: Start accepts. Automaton has 9376 states and 27782 transitions. Word has length 39 [2022-01-28 15:10:33,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:33,016 INFO L470 AbstractCegarLoop]: Abstraction has 9376 states and 27782 transitions. [2022-01-28 15:10:33,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:33,016 INFO L276 IsEmpty]: Start isEmpty. Operand 9376 states and 27782 transitions. [2022-01-28 15:10:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:33,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:33,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:33,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-28 15:10:33,032 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:33,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:33,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1785929222, now seen corresponding path program 33 times [2022-01-28 15:10:33,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:33,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66553174] [2022-01-28 15:10:33,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:33,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:33,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:33,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:33,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66553174] [2022-01-28 15:10:33,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66553174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:33,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:33,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 15:10:33,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268722552] [2022-01-28 15:10:33,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:33,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 15:10:33,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:33,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 15:10:33,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-28 15:10:33,082 INFO L87 Difference]: Start difference. First operand 9376 states and 27782 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:33,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:33,421 INFO L93 Difference]: Finished difference Result 14599 states and 43322 transitions. [2022-01-28 15:10:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 15:10:33,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:33,449 INFO L225 Difference]: With dead ends: 14599 [2022-01-28 15:10:33,449 INFO L226 Difference]: Without dead ends: 14479 [2022-01-28 15:10:33,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-28 15:10:33,450 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 152 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:33,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 275 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 15:10:33,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14479 states. [2022-01-28 15:10:33,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14479 to 9268. [2022-01-28 15:10:33,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9268 states, 9267 states have (on average 2.9584547318441783) internal successors, (27416), 9267 states have internal predecessors, (27416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:33,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9268 states to 9268 states and 27416 transitions. [2022-01-28 15:10:33,630 INFO L78 Accepts]: Start accepts. Automaton has 9268 states and 27416 transitions. Word has length 39 [2022-01-28 15:10:33,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:33,630 INFO L470 AbstractCegarLoop]: Abstraction has 9268 states and 27416 transitions. [2022-01-28 15:10:33,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:33,630 INFO L276 IsEmpty]: Start isEmpty. Operand 9268 states and 27416 transitions. [2022-01-28 15:10:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:33,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:33,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:33,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-28 15:10:33,644 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:33,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:33,644 INFO L85 PathProgramCache]: Analyzing trace with hash 106986788, now seen corresponding path program 34 times [2022-01-28 15:10:33,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:33,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142113950] [2022-01-28 15:10:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:33,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:33,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:33,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142113950] [2022-01-28 15:10:33,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142113950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:33,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:33,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 15:10:33,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042004821] [2022-01-28 15:10:33,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:33,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 15:10:33,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:33,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 15:10:33,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:33,695 INFO L87 Difference]: Start difference. First operand 9268 states and 27416 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:34,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:34,015 INFO L93 Difference]: Finished difference Result 14208 states and 42268 transitions. [2022-01-28 15:10:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 15:10:34,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:34,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:34,044 INFO L225 Difference]: With dead ends: 14208 [2022-01-28 15:10:34,044 INFO L226 Difference]: Without dead ends: 14016 [2022-01-28 15:10:34,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-01-28 15:10:34,045 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 159 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:34,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 330 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:34,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14016 states. [2022-01-28 15:10:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14016 to 9164. [2022-01-28 15:10:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9164 states, 9163 states have (on average 2.960820691913129) internal successors, (27130), 9163 states have internal predecessors, (27130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9164 states to 9164 states and 27130 transitions. [2022-01-28 15:10:34,220 INFO L78 Accepts]: Start accepts. Automaton has 9164 states and 27130 transitions. Word has length 39 [2022-01-28 15:10:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:34,220 INFO L470 AbstractCegarLoop]: Abstraction has 9164 states and 27130 transitions. [2022-01-28 15:10:34,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 9164 states and 27130 transitions. [2022-01-28 15:10:34,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:34,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:34,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:34,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-28 15:10:34,263 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:34,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:34,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1295537496, now seen corresponding path program 35 times [2022-01-28 15:10:34,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:34,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653021452] [2022-01-28 15:10:34,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:34,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:34,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:34,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:34,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653021452] [2022-01-28 15:10:34,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653021452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:34,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:34,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 15:10:34,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908719654] [2022-01-28 15:10:34,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:34,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 15:10:34,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:34,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 15:10:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:34,317 INFO L87 Difference]: Start difference. First operand 9164 states and 27130 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:34,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:34,760 INFO L93 Difference]: Finished difference Result 14134 states and 42012 transitions. [2022-01-28 15:10:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-28 15:10:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:34,793 INFO L225 Difference]: With dead ends: 14134 [2022-01-28 15:10:34,793 INFO L226 Difference]: Without dead ends: 13966 [2022-01-28 15:10:34,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2022-01-28 15:10:34,793 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 195 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:34,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 457 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 15:10:34,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13966 states. [2022-01-28 15:10:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13966 to 9158. [2022-01-28 15:10:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9158 states, 9157 states have (on average 2.9588293109096866) internal successors, (27094), 9157 states have internal predecessors, (27094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9158 states to 9158 states and 27094 transitions. [2022-01-28 15:10:34,987 INFO L78 Accepts]: Start accepts. Automaton has 9158 states and 27094 transitions. Word has length 39 [2022-01-28 15:10:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:34,987 INFO L470 AbstractCegarLoop]: Abstraction has 9158 states and 27094 transitions. [2022-01-28 15:10:34,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand 9158 states and 27094 transitions. [2022-01-28 15:10:35,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:35,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:35,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:35,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-28 15:10:35,002 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:35,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash 226094054, now seen corresponding path program 36 times [2022-01-28 15:10:35,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:35,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543070171] [2022-01-28 15:10:35,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:35,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:35,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:35,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543070171] [2022-01-28 15:10:35,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543070171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:35,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:35,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:35,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617778784] [2022-01-28 15:10:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:35,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:35,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:35,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:35,055 INFO L87 Difference]: Start difference. First operand 9158 states and 27094 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:35,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:35,303 INFO L93 Difference]: Finished difference Result 14594 states and 43056 transitions. [2022-01-28 15:10:35,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 15:10:35,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:35,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:35,330 INFO L225 Difference]: With dead ends: 14594 [2022-01-28 15:10:35,330 INFO L226 Difference]: Without dead ends: 14466 [2022-01-28 15:10:35,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:35,331 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 101 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:35,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 254 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:35,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14466 states. [2022-01-28 15:10:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14466 to 9094. [2022-01-28 15:10:35,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9094 states, 9093 states have (on average 2.9493016606180578) internal successors, (26818), 9093 states have internal predecessors, (26818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9094 states to 9094 states and 26818 transitions. [2022-01-28 15:10:35,497 INFO L78 Accepts]: Start accepts. Automaton has 9094 states and 26818 transitions. Word has length 39 [2022-01-28 15:10:35,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:35,498 INFO L470 AbstractCegarLoop]: Abstraction has 9094 states and 26818 transitions. [2022-01-28 15:10:35,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 9094 states and 26818 transitions. [2022-01-28 15:10:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:35,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:35,510 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] [2022-01-28 15:10:35,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-28 15:10:35,510 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:35,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1663207450, now seen corresponding path program 37 times [2022-01-28 15:10:35,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:35,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460397239] [2022-01-28 15:10:35,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:35,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:35,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:35,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460397239] [2022-01-28 15:10:35,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460397239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:35,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:35,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 15:10:35,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774945283] [2022-01-28 15:10:35,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:35,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 15:10:35,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:35,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 15:10:35,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-28 15:10:35,551 INFO L87 Difference]: Start difference. First operand 9094 states and 26818 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:35,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:35,844 INFO L93 Difference]: Finished difference Result 14494 states and 42702 transitions. [2022-01-28 15:10:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 15:10:35,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:35,874 INFO L225 Difference]: With dead ends: 14494 [2022-01-28 15:10:35,874 INFO L226 Difference]: Without dead ends: 14022 [2022-01-28 15:10:35,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-28 15:10:35,875 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 130 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:35,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 289 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14022 states. [2022-01-28 15:10:36,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14022 to 8890. [2022-01-28 15:10:36,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8890 states, 8889 states have (on average 2.937338283271459) internal successors, (26110), 8889 states have internal predecessors, (26110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8890 states to 8890 states and 26110 transitions. [2022-01-28 15:10:36,126 INFO L78 Accepts]: Start accepts. Automaton has 8890 states and 26110 transitions. Word has length 39 [2022-01-28 15:10:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:36,126 INFO L470 AbstractCegarLoop]: Abstraction has 8890 states and 26110 transitions. [2022-01-28 15:10:36,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:36,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8890 states and 26110 transitions. [2022-01-28 15:10:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:36,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:36,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:36,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-28 15:10:36,141 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:36,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:36,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1884774148, now seen corresponding path program 38 times [2022-01-28 15:10:36,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:36,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809667175] [2022-01-28 15:10:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:36,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:36,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:36,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809667175] [2022-01-28 15:10:36,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809667175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:36,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:36,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 15:10:36,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631598387] [2022-01-28 15:10:36,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:36,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 15:10:36,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:36,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 15:10:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:36,209 INFO L87 Difference]: Start difference. First operand 8890 states and 26110 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:36,530 INFO L93 Difference]: Finished difference Result 14086 states and 41514 transitions. [2022-01-28 15:10:36,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 15:10:36,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:36,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:36,558 INFO L225 Difference]: With dead ends: 14086 [2022-01-28 15:10:36,558 INFO L226 Difference]: Without dead ends: 13386 [2022-01-28 15:10:36,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-01-28 15:10:36,559 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 143 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:36,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 319 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:36,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13386 states. [2022-01-28 15:10:36,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13386 to 8674. [2022-01-28 15:10:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8674 states, 8673 states have (on average 2.945462930935086) internal successors, (25546), 8673 states have internal predecessors, (25546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:36,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8674 states to 8674 states and 25546 transitions. [2022-01-28 15:10:36,720 INFO L78 Accepts]: Start accepts. Automaton has 8674 states and 25546 transitions. Word has length 39 [2022-01-28 15:10:36,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:36,720 INFO L470 AbstractCegarLoop]: Abstraction has 8674 states and 25546 transitions. [2022-01-28 15:10:36,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:36,721 INFO L276 IsEmpty]: Start isEmpty. Operand 8674 states and 25546 transitions. [2022-01-28 15:10:36,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:36,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:36,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:36,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-28 15:10:36,733 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:36,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:36,733 INFO L85 PathProgramCache]: Analyzing trace with hash 717689992, now seen corresponding path program 39 times [2022-01-28 15:10:36,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:36,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270884345] [2022-01-28 15:10:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:36,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:36,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:36,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270884345] [2022-01-28 15:10:36,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270884345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:36,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:36,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 15:10:36,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215937728] [2022-01-28 15:10:36,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:36,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 15:10:36,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:36,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 15:10:36,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:36,794 INFO L87 Difference]: Start difference. First operand 8674 states and 25546 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:37,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:37,179 INFO L93 Difference]: Finished difference Result 13828 states and 40806 transitions. [2022-01-28 15:10:37,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-28 15:10:37,179 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:37,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:37,205 INFO L225 Difference]: With dead ends: 13828 [2022-01-28 15:10:37,206 INFO L226 Difference]: Without dead ends: 13182 [2022-01-28 15:10:37,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2022-01-28 15:10:37,206 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 172 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:37,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 390 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 15:10:37,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13182 states. [2022-01-28 15:10:37,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13182 to 8470. [2022-01-28 15:10:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 8469 states have (on average 2.964694769158106) internal successors, (25108), 8469 states have internal predecessors, (25108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 25108 transitions. [2022-01-28 15:10:37,361 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 25108 transitions. Word has length 39 [2022-01-28 15:10:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:37,361 INFO L470 AbstractCegarLoop]: Abstraction has 8470 states and 25108 transitions. [2022-01-28 15:10:37,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 25108 transitions. [2022-01-28 15:10:37,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:37,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:37,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:37,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-28 15:10:37,374 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:37,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:37,374 INFO L85 PathProgramCache]: Analyzing trace with hash 260211148, now seen corresponding path program 40 times [2022-01-28 15:10:37,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:37,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474279260] [2022-01-28 15:10:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:37,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:37,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:37,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474279260] [2022-01-28 15:10:37,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474279260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:37,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:37,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 15:10:37,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041741506] [2022-01-28 15:10:37,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:37,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 15:10:37,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:37,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 15:10:37,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:37,426 INFO L87 Difference]: Start difference. First operand 8470 states and 25108 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:37,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:37,932 INFO L93 Difference]: Finished difference Result 13371 states and 39611 transitions. [2022-01-28 15:10:37,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-28 15:10:37,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:37,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:37,958 INFO L225 Difference]: With dead ends: 13371 [2022-01-28 15:10:37,958 INFO L226 Difference]: Without dead ends: 12735 [2022-01-28 15:10:37,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2022-01-28 15:10:37,959 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 157 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:37,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 585 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 15:10:37,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12735 states. [2022-01-28 15:10:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12735 to 7590. [2022-01-28 15:10:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7590 states, 7589 states have (on average 2.960469100013177) internal successors, (22467), 7589 states have internal predecessors, (22467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:38,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7590 states to 7590 states and 22467 transitions. [2022-01-28 15:10:38,111 INFO L78 Accepts]: Start accepts. Automaton has 7590 states and 22467 transitions. Word has length 39 [2022-01-28 15:10:38,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:38,111 INFO L470 AbstractCegarLoop]: Abstraction has 7590 states and 22467 transitions. [2022-01-28 15:10:38,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:38,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7590 states and 22467 transitions. [2022-01-28 15:10:38,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:38,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:38,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:38,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-28 15:10:38,122 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:38,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1545275302, now seen corresponding path program 41 times [2022-01-28 15:10:38,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:38,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600614665] [2022-01-28 15:10:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:38,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:38,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:38,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600614665] [2022-01-28 15:10:38,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600614665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:38,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:38,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 15:10:38,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265619136] [2022-01-28 15:10:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:38,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 15:10:38,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:38,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 15:10:38,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-28 15:10:38,169 INFO L87 Difference]: Start difference. First operand 7590 states and 22467 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:38,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:38,456 INFO L93 Difference]: Finished difference Result 12745 states and 37674 transitions. [2022-01-28 15:10:38,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 15:10:38,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:38,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:38,481 INFO L225 Difference]: With dead ends: 12745 [2022-01-28 15:10:38,481 INFO L226 Difference]: Without dead ends: 12601 [2022-01-28 15:10:38,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-28 15:10:38,482 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 120 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:38,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 307 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12601 states. [2022-01-28 15:10:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12601 to 7346. [2022-01-28 15:10:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7346 states, 7345 states have (on average 2.9400953029271615) internal successors, (21595), 7345 states have internal predecessors, (21595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:38,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7346 states to 7346 states and 21595 transitions. [2022-01-28 15:10:38,628 INFO L78 Accepts]: Start accepts. Automaton has 7346 states and 21595 transitions. Word has length 39 [2022-01-28 15:10:38,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:38,628 INFO L470 AbstractCegarLoop]: Abstraction has 7346 states and 21595 transitions. [2022-01-28 15:10:38,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:38,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7346 states and 21595 transitions. [2022-01-28 15:10:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:38,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:38,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:38,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-28 15:10:38,639 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:38,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:38,639 INFO L85 PathProgramCache]: Analyzing trace with hash -658085798, now seen corresponding path program 42 times [2022-01-28 15:10:38,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:38,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700463674] [2022-01-28 15:10:38,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:38,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:38,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:38,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700463674] [2022-01-28 15:10:38,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700463674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:38,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:38,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 15:10:38,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542541989] [2022-01-28 15:10:38,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:38,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 15:10:38,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:38,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 15:10:38,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:38,687 INFO L87 Difference]: Start difference. First operand 7346 states and 21595 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:39,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:39,056 INFO L93 Difference]: Finished difference Result 11821 states and 34814 transitions. [2022-01-28 15:10:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 15:10:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:39,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:39,078 INFO L225 Difference]: With dead ends: 11821 [2022-01-28 15:10:39,078 INFO L226 Difference]: Without dead ends: 11629 [2022-01-28 15:10:39,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-01-28 15:10:39,079 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 125 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:39,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 424 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 15:10:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11629 states. [2022-01-28 15:10:39,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11629 to 7242. [2022-01-28 15:10:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 7241 states have (on average 2.9428255765778206) internal successors, (21309), 7241 states have internal predecessors, (21309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:39,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 21309 transitions. [2022-01-28 15:10:39,231 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 21309 transitions. Word has length 39 [2022-01-28 15:10:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:39,231 INFO L470 AbstractCegarLoop]: Abstraction has 7242 states and 21309 transitions. [2022-01-28 15:10:39,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 21309 transitions. [2022-01-28 15:10:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:39,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:39,241 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] [2022-01-28 15:10:39,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-28 15:10:39,242 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:39,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:39,242 INFO L85 PathProgramCache]: Analyzing trace with hash 156722680, now seen corresponding path program 43 times [2022-01-28 15:10:39,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:39,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143345564] [2022-01-28 15:10:39,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:39,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:39,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:39,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:39,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143345564] [2022-01-28 15:10:39,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143345564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:39,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:39,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 15:10:39,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928450429] [2022-01-28 15:10:39,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:39,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 15:10:39,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:39,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 15:10:39,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:39,294 INFO L87 Difference]: Start difference. First operand 7242 states and 21309 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:39,695 INFO L93 Difference]: Finished difference Result 11315 states and 33296 transitions. [2022-01-28 15:10:39,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-28 15:10:39,695 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:39,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:39,716 INFO L225 Difference]: With dead ends: 11315 [2022-01-28 15:10:39,717 INFO L226 Difference]: Without dead ends: 11099 [2022-01-28 15:10:39,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2022-01-28 15:10:39,717 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 162 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:39,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 429 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 15:10:39,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11099 states. [2022-01-28 15:10:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11099 to 7008. [2022-01-28 15:10:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 2.97445411731126) internal successors, (20842), 7007 states have internal predecessors, (20842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:39,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 20842 transitions. [2022-01-28 15:10:39,851 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 20842 transitions. Word has length 39 [2022-01-28 15:10:39,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:39,851 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 20842 transitions. [2022-01-28 15:10:39,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 20842 transitions. [2022-01-28 15:10:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:39,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:39,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:39,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-28 15:10:39,862 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:39,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash 2127227424, now seen corresponding path program 44 times [2022-01-28 15:10:39,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:39,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381513727] [2022-01-28 15:10:39,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:39,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:39,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:39,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381513727] [2022-01-28 15:10:39,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381513727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:39,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:39,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 15:10:39,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237323398] [2022-01-28 15:10:39,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:39,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 15:10:39,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:39,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 15:10:39,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-28 15:10:39,913 INFO L87 Difference]: Start difference. First operand 7008 states and 20842 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:40,033 INFO L93 Difference]: Finished difference Result 9444 states and 26929 transitions. [2022-01-28 15:10:40,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 15:10:40,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:40,049 INFO L225 Difference]: With dead ends: 9444 [2022-01-28 15:10:40,049 INFO L226 Difference]: Without dead ends: 8824 [2022-01-28 15:10:40,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-28 15:10:40,050 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 63 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:40,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 101 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:40,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8824 states. [2022-01-28 15:10:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8824 to 4125. [2022-01-28 15:10:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 4124 states have (on average 2.908341416100873) internal successors, (11994), 4124 states have internal predecessors, (11994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 11994 transitions. [2022-01-28 15:10:40,132 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 11994 transitions. Word has length 39 [2022-01-28 15:10:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:40,132 INFO L470 AbstractCegarLoop]: Abstraction has 4125 states and 11994 transitions. [2022-01-28 15:10:40,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 11994 transitions. [2022-01-28 15:10:40,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:40,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:40,137 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] [2022-01-28 15:10:40,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-28 15:10:40,138 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:40,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:40,138 INFO L85 PathProgramCache]: Analyzing trace with hash 371285406, now seen corresponding path program 45 times [2022-01-28 15:10:40,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:40,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011356951] [2022-01-28 15:10:40,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:40,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:40,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:40,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011356951] [2022-01-28 15:10:40,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011356951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:40,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:40,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 15:10:40,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767992871] [2022-01-28 15:10:40,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:40,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 15:10:40,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:40,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 15:10:40,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-28 15:10:40,174 INFO L87 Difference]: Start difference. First operand 4125 states and 11994 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:40,363 INFO L93 Difference]: Finished difference Result 6107 states and 16719 transitions. [2022-01-28 15:10:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 15:10:40,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:40,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:40,371 INFO L225 Difference]: With dead ends: 6107 [2022-01-28 15:10:40,371 INFO L226 Difference]: Without dead ends: 4693 [2022-01-28 15:10:40,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:40,372 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 87 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:40,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 209 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:40,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4693 states. [2022-01-28 15:10:40,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4693 to 2542. [2022-01-28 15:10:40,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 2541 states have (on average 2.786698150334514) internal successors, (7081), 2541 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 7081 transitions. [2022-01-28 15:10:40,414 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 7081 transitions. Word has length 39 [2022-01-28 15:10:40,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:40,415 INFO L470 AbstractCegarLoop]: Abstraction has 2542 states and 7081 transitions. [2022-01-28 15:10:40,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 7081 transitions. [2022-01-28 15:10:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:40,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:40,418 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] [2022-01-28 15:10:40,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-28 15:10:40,418 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:40,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1101469790, now seen corresponding path program 46 times [2022-01-28 15:10:40,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:40,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355362982] [2022-01-28 15:10:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:40,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:40,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:40,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355362982] [2022-01-28 15:10:40,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355362982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:40,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:40,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 15:10:40,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954600896] [2022-01-28 15:10:40,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:40,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 15:10:40,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:40,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 15:10:40,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-28 15:10:40,471 INFO L87 Difference]: Start difference. First operand 2542 states and 7081 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:40,679 INFO L93 Difference]: Finished difference Result 1862 states and 4307 transitions. [2022-01-28 15:10:40,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 15:10:40,680 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:40,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:40,681 INFO L225 Difference]: With dead ends: 1862 [2022-01-28 15:10:40,681 INFO L226 Difference]: Without dead ends: 648 [2022-01-28 15:10:40,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-28 15:10:40,681 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 101 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:40,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 233 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 15:10:40,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-01-28 15:10:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 456. [2022-01-28 15:10:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 2.4329670329670328) internal successors, (1107), 455 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 1107 transitions. [2022-01-28 15:10:40,687 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 1107 transitions. Word has length 39 [2022-01-28 15:10:40,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:40,687 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 1107 transitions. [2022-01-28 15:10:40,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,687 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 1107 transitions. [2022-01-28 15:10:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-28 15:10:40,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 15:10:40,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 15:10:40,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-28 15:10:40,688 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-28 15:10:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 15:10:40,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1256896016, now seen corresponding path program 47 times [2022-01-28 15:10:40,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 15:10:40,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341522104] [2022-01-28 15:10:40,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 15:10:40,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 15:10:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 15:10:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 15:10:40,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 15:10:40,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341522104] [2022-01-28 15:10:40,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341522104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 15:10:40,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 15:10:40,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 15:10:40,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507297266] [2022-01-28 15:10:40,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 15:10:40,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 15:10:40,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 15:10:40,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 15:10:40,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-28 15:10:40,752 INFO L87 Difference]: Start difference. First operand 456 states and 1107 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 15:10:40,922 INFO L93 Difference]: Finished difference Result 391 states and 811 transitions. [2022-01-28 15:10:40,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 15:10:40,922 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-28 15:10:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 15:10:40,922 INFO L225 Difference]: With dead ends: 391 [2022-01-28 15:10:40,922 INFO L226 Difference]: Without dead ends: 0 [2022-01-28 15:10:40,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-01-28 15:10:40,923 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 73 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 15:10:40,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 187 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 15:10:40,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-28 15:10:40,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-28 15:10:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-28 15:10:40,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-01-28 15:10:40,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 15:10:40,924 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-28 15:10:40,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 15:10:40,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-28 15:10:40,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-28 15:10:40,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (5 of 6 remaining) [2022-01-28 15:10:40,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2022-01-28 15:10:40,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2022-01-28 15:10:40,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 6 remaining) [2022-01-28 15:10:40,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 6 remaining) [2022-01-28 15:10:40,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (0 of 6 remaining) [2022-01-28 15:10:40,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-28 15:10:40,930 INFO L732 BasicCegarLoop]: Path program histogram: [47] [2022-01-28 15:10:40,932 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 15:10:40,932 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 15:10:40,933 INFO L202 PluginConnector]: Adding new model ticket-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 03:10:40 BasicIcfg [2022-01-28 15:10:40,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 15:10:40,934 INFO L158 Benchmark]: Toolchain (without parser) took 48186.99ms. Allocated memory was 174.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 138.3MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 5.0GB. Max. memory is 8.0GB. [2022-01-28 15:10:40,934 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 15:10:40,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.00ms. Allocated memory is still 174.1MB. Free memory was 138.3MB in the beginning and 136.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 15:10:40,934 INFO L158 Benchmark]: Boogie Preprocessor took 9.24ms. Allocated memory is still 174.1MB. Free memory was 136.8MB in the beginning and 135.9MB in the end (delta: 915.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 15:10:40,934 INFO L158 Benchmark]: RCFGBuilder took 239.91ms. Allocated memory is still 174.1MB. Free memory was 135.8MB in the beginning and 125.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-28 15:10:40,934 INFO L158 Benchmark]: TraceAbstraction took 47904.10ms. Allocated memory was 174.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 125.1MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 5.0GB. Max. memory is 8.0GB. [2022-01-28 15:10:40,935 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 174.1MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.00ms. Allocated memory is still 174.1MB. Free memory was 138.3MB in the beginning and 136.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.24ms. Allocated memory is still 174.1MB. Free memory was 136.8MB in the beginning and 135.9MB in the end (delta: 915.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 239.91ms. Allocated memory is still 174.1MB. Free memory was 135.8MB in the beginning and 125.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 47904.10ms. Allocated memory was 174.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 125.1MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 5.0GB. Max. memory is 8.0GB. * 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 - PositiveResult [Line: 95]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 83 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 47.8s, OverallIterations: 47, TraceHistogramMax: 1, PathProgramHistogramMax: 47, EmptinessCheckTime: 2.1s, AutomataDifference: 21.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5021 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5021 mSDsluCounter, 10232 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12174 mSDsCounter, 2067 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18520 IncrementalHoareTripleChecker+Invalid, 20587 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2067 mSolverCounterUnsat, 2285 mSDtfsCounter, 18520 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 574 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 449 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24666occurred in iteration=11, InterpolantAutomatonStates: 453, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.1s AutomataMinimizationTime, 47 MinimizatonAttempts, 378550 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1833 NumberOfCodeBlocks, 1833 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 1786 ConstructedInterpolants, 0 QuantifiedInterpolants, 5214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-28 15:10:40,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...