/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 05:32:13,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 05:32:13,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 05:32:13,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 05:32:13,705 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 [2022-01-18 05:32:13,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 05:32:13,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 05:32:13,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 05:32:13,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 05:32:13,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 05:32:13,739 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 05:32:13,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 05:32:13,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 05:32:13,739 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 05:32:13,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 05:32:13,740 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 05:32:13,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 05:32:13,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 05:32:13,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 05:32:13,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 05:32:13,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 05:32:13,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 05:32:13,741 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 05:32:13,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 05:32:13,741 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 05:32:13,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 05:32:13,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 05:32:13,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 05:32:13,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 05:32:13,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 05:32:13,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 05:32:13,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 05:32:13,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 05:32:13,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 05:32:13,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 05:32:13,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 05:32:13,743 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 05:32:13,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 05:32:13,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 05:32:13,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 05:32:13,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 05:32:13,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 05:32:13,983 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 05:32:13,984 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 05:32:13,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl [2022-01-18 05:32:13,985 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl' [2022-01-18 05:32:14,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 05:32:14,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 05:32:14,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 05:32:14,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 05:32:14,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 05:32:14,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,030 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 05:32:14,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 05:32:14,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 05:32:14,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 05:32:14,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 05:32:14,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 05:32:14,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 05:32:14,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 05:32:14,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 05:32:14,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/1) ... [2022-01-18 05:32:14,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 05:32:14,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 05:32:14,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 05:32:14,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 05:32:14,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 05:32:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 05:32:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 05:32:14,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 05:32:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 05:32:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 05:32:14,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 05:32:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 05:32:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 05:32:14,118 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-18 05:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 05:32:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 05:32:14,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-01-18 05:32:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 05:32:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 05:32:14,120 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 05:32:14,162 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 05:32:14,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 05:32:14,251 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 05:32:14,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 05:32:14,264 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 05:32:14,266 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:32:14 BoogieIcfgContainer [2022-01-18 05:32:14,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 05:32:14,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 05:32:14,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 05:32:14,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 05:32:14,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:14" (1/2) ... [2022-01-18 05:32:14,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160a822d and model type ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 05:32:14, skipping insertion in model container [2022-01-18 05:32:14,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:32:14" (2/2) ... [2022-01-18 05:32:14,272 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-4.wvr.bpl [2022-01-18 05:32:14,276 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 05:32:14,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 05:32:14,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 05:32:14,276 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 05:32:14,335 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 05:32:14,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 05:32:14,406 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 05:32:14,406 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 05:32:14,415 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 38 transitions, 108 flow [2022-01-18 05:32:14,632 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2076 states, 2075 states have (on average 3.3532530120481927) internal successors, (6958), 2075 states have internal predecessors, (6958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:14,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 2076 states, 2075 states have (on average 3.3532530120481927) internal successors, (6958), 2075 states have internal predecessors, (6958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:14,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:14,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:14,671 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:14,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:14,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1807612906, now seen corresponding path program 1 times [2022-01-18 05:32:14,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:14,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382405422] [2022-01-18 05:32:14,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:14,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:14,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:14,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382405422] [2022-01-18 05:32:14,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382405422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:14,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:14,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 05:32:14,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418214746] [2022-01-18 05:32:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:14,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 05:32:14,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:14,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 05:32:14,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:32:14,955 INFO L87 Difference]: Start difference. First operand has 2076 states, 2075 states have (on average 3.3532530120481927) internal successors, (6958), 2075 states have internal predecessors, (6958), 0 states have call successors, (0), 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 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:15,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:15,205 INFO L93 Difference]: Finished difference Result 4631 states and 14853 transitions. [2022-01-18 05:32:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 05:32:15,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:15,305 INFO L225 Difference]: With dead ends: 4631 [2022-01-18 05:32:15,305 INFO L226 Difference]: Without dead ends: 4631 [2022-01-18 05:32:15,308 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 [2022-01-18 05:32:15,312 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 54 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:15,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 88 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:15,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2022-01-18 05:32:15,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 2449. [2022-01-18 05:32:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2448 states have (on average 3.2834967320261437) internal successors, (8038), 2448 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:15,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 8038 transitions. [2022-01-18 05:32:15,482 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 8038 transitions. Word has length 32 [2022-01-18 05:32:15,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:15,485 INFO L470 AbstractCegarLoop]: Abstraction has 2449 states and 8038 transitions. [2022-01-18 05:32:15,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 8038 transitions. [2022-01-18 05:32:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:15,494 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:15,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:15,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 05:32:15,494 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:15,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:15,497 INFO L85 PathProgramCache]: Analyzing trace with hash -409431244, now seen corresponding path program 2 times [2022-01-18 05:32:15,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:15,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787563576] [2022-01-18 05:32:15,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:15,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:15,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:15,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787563576] [2022-01-18 05:32:15,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787563576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:15,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:15,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 05:32:15,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402083146] [2022-01-18 05:32:15,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:15,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 05:32:15,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:15,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 05:32:15,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 05:32:15,630 INFO L87 Difference]: Start difference. First operand 2449 states and 8038 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:15,729 INFO L93 Difference]: Finished difference Result 3557 states and 11583 transitions. [2022-01-18 05:32:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 05:32:15,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:15,745 INFO L225 Difference]: With dead ends: 3557 [2022-01-18 05:32:15,745 INFO L226 Difference]: Without dead ends: 2328 [2022-01-18 05:32:15,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 05:32:15,754 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 40 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:15,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 55 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:15,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2022-01-18 05:32:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2328. [2022-01-18 05:32:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2328 states, 2327 states have (on average 3.1637301246239793) internal successors, (7362), 2327 states have internal predecessors, (7362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2328 states to 2328 states and 7362 transitions. [2022-01-18 05:32:15,836 INFO L78 Accepts]: Start accepts. Automaton has 2328 states and 7362 transitions. Word has length 32 [2022-01-18 05:32:15,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:15,837 INFO L470 AbstractCegarLoop]: Abstraction has 2328 states and 7362 transitions. [2022-01-18 05:32:15,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2328 states and 7362 transitions. [2022-01-18 05:32:15,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:15,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:15,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:15,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 05:32:15,852 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:15,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash 900460502, now seen corresponding path program 3 times [2022-01-18 05:32:15,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:15,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101761336] [2022-01-18 05:32:15,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:15,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:15,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:15,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101761336] [2022-01-18 05:32:15,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101761336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:15,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:15,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 05:32:15,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737214638] [2022-01-18 05:32:15,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:15,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 05:32:15,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:15,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 05:32:15,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:32:15,931 INFO L87 Difference]: Start difference. First operand 2328 states and 7362 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:16,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:16,086 INFO L93 Difference]: Finished difference Result 3796 states and 11479 transitions. [2022-01-18 05:32:16,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 05:32:16,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:16,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:16,107 INFO L225 Difference]: With dead ends: 3796 [2022-01-18 05:32:16,107 INFO L226 Difference]: Without dead ends: 3752 [2022-01-18 05:32:16,107 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 [2022-01-18 05:32:16,114 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 56 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:16,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 78 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2022-01-18 05:32:16,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 2380. [2022-01-18 05:32:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2379 states have (on average 3.051282051282051) internal successors, (7259), 2379 states have internal predecessors, (7259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 7259 transitions. [2022-01-18 05:32:16,204 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 7259 transitions. Word has length 32 [2022-01-18 05:32:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:16,205 INFO L470 AbstractCegarLoop]: Abstraction has 2380 states and 7259 transitions. [2022-01-18 05:32:16,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 7259 transitions. [2022-01-18 05:32:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:16,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:16,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:16,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 05:32:16,216 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:16,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1387989672, now seen corresponding path program 4 times [2022-01-18 05:32:16,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:16,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943770532] [2022-01-18 05:32:16,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:16,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:16,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:16,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943770532] [2022-01-18 05:32:16,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943770532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:16,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:16,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:32:16,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052195815] [2022-01-18 05:32:16,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:16,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:32:16,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:16,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:32:16,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:32:16,319 INFO L87 Difference]: Start difference. First operand 2380 states and 7259 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:16,497 INFO L93 Difference]: Finished difference Result 4075 states and 12124 transitions. [2022-01-18 05:32:16,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 05:32:16,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:16,527 INFO L225 Difference]: With dead ends: 4075 [2022-01-18 05:32:16,527 INFO L226 Difference]: Without dead ends: 4027 [2022-01-18 05:32:16,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:16,531 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 85 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:16,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 109 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:16,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4027 states. [2022-01-18 05:32:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4027 to 2348. [2022-01-18 05:32:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 2347 states have (on average 3.033233915636983) internal successors, (7119), 2347 states have internal predecessors, (7119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 7119 transitions. [2022-01-18 05:32:16,658 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 7119 transitions. Word has length 32 [2022-01-18 05:32:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:16,659 INFO L470 AbstractCegarLoop]: Abstraction has 2348 states and 7119 transitions. [2022-01-18 05:32:16,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 7119 transitions. [2022-01-18 05:32:16,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:16,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:16,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:16,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 05:32:16,667 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:16,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:16,667 INFO L85 PathProgramCache]: Analyzing trace with hash -735266378, now seen corresponding path program 5 times [2022-01-18 05:32:16,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:16,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444880789] [2022-01-18 05:32:16,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:16,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:16,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:16,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:16,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444880789] [2022-01-18 05:32:16,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444880789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:16,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:16,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:32:16,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187327371] [2022-01-18 05:32:16,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:16,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:32:16,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:16,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:32:16,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:16,750 INFO L87 Difference]: Start difference. First operand 2348 states and 7119 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:16,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:16,962 INFO L93 Difference]: Finished difference Result 4192 states and 12353 transitions. [2022-01-18 05:32:16,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:32:16,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:16,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:16,982 INFO L225 Difference]: With dead ends: 4192 [2022-01-18 05:32:16,983 INFO L226 Difference]: Without dead ends: 4048 [2022-01-18 05:32:16,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:32:16,986 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 96 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:16,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 130 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:16,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2022-01-18 05:32:17,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 2389. [2022-01-18 05:32:17,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2388 states have (on average 3.009212730318258) internal successors, (7186), 2388 states have internal predecessors, (7186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:17,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 7186 transitions. [2022-01-18 05:32:17,070 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 7186 transitions. Word has length 32 [2022-01-18 05:32:17,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:17,070 INFO L470 AbstractCegarLoop]: Abstraction has 2389 states and 7186 transitions. [2022-01-18 05:32:17,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:17,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 7186 transitions. [2022-01-18 05:32:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:17,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:17,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:17,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 05:32:17,078 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:17,078 INFO L85 PathProgramCache]: Analyzing trace with hash -339953864, now seen corresponding path program 6 times [2022-01-18 05:32:17,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:17,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299672185] [2022-01-18 05:32:17,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:17,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:17,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:17,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299672185] [2022-01-18 05:32:17,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299672185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:17,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:17,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:32:17,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573024544] [2022-01-18 05:32:17,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:17,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:32:17,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:17,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:32:17,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:32:17,131 INFO L87 Difference]: Start difference. First operand 2389 states and 7186 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:17,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:17,288 INFO L93 Difference]: Finished difference Result 4046 states and 11863 transitions. [2022-01-18 05:32:17,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 05:32:17,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:17,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:17,301 INFO L225 Difference]: With dead ends: 4046 [2022-01-18 05:32:17,301 INFO L226 Difference]: Without dead ends: 4002 [2022-01-18 05:32:17,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:17,303 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 72 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:17,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 119 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-01-18 05:32:17,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 2467. [2022-01-18 05:32:17,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2466 states have (on average 2.981346309813463) internal successors, (7352), 2466 states have internal predecessors, (7352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 7352 transitions. [2022-01-18 05:32:17,386 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 7352 transitions. Word has length 32 [2022-01-18 05:32:17,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:17,387 INFO L470 AbstractCegarLoop]: Abstraction has 2467 states and 7352 transitions. [2022-01-18 05:32:17,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:17,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 7352 transitions. [2022-01-18 05:32:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:17,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:17,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:17,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 05:32:17,395 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:17,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:17,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1118093206, now seen corresponding path program 7 times [2022-01-18 05:32:17,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:17,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505746801] [2022-01-18 05:32:17,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:17,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:17,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:17,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505746801] [2022-01-18 05:32:17,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505746801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:17,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:17,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:32:17,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610607921] [2022-01-18 05:32:17,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:17,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:32:17,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:17,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:32:17,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:17,487 INFO L87 Difference]: Start difference. First operand 2467 states and 7352 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:17,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:17,709 INFO L93 Difference]: Finished difference Result 4284 states and 12351 transitions. [2022-01-18 05:32:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:32:17,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:17,721 INFO L225 Difference]: With dead ends: 4284 [2022-01-18 05:32:17,722 INFO L226 Difference]: Without dead ends: 4176 [2022-01-18 05:32:17,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:32:17,723 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 97 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:17,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 180 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:17,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2022-01-18 05:32:17,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 2547. [2022-01-18 05:32:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2547 states, 2546 states have (on average 2.9571877454831106) internal successors, (7529), 2546 states have internal predecessors, (7529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 7529 transitions. [2022-01-18 05:32:17,791 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 7529 transitions. Word has length 32 [2022-01-18 05:32:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:17,792 INFO L470 AbstractCegarLoop]: Abstraction has 2547 states and 7529 transitions. [2022-01-18 05:32:17,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 7529 transitions. [2022-01-18 05:32:17,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:17,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:17,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:17,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 05:32:17,799 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:17,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:17,800 INFO L85 PathProgramCache]: Analyzing trace with hash -753326954, now seen corresponding path program 8 times [2022-01-18 05:32:17,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:17,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689440488] [2022-01-18 05:32:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:17,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:17,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:17,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689440488] [2022-01-18 05:32:17,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689440488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:17,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:17,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:32:17,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563523042] [2022-01-18 05:32:17,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:17,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:32:17,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:17,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:32:17,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:32:17,869 INFO L87 Difference]: Start difference. First operand 2547 states and 7529 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:18,046 INFO L93 Difference]: Finished difference Result 3902 states and 11122 transitions. [2022-01-18 05:32:18,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 05:32:18,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:18,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:18,056 INFO L225 Difference]: With dead ends: 3902 [2022-01-18 05:32:18,056 INFO L226 Difference]: Without dead ends: 3890 [2022-01-18 05:32:18,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:18,057 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 75 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:18,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 117 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2022-01-18 05:32:18,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 2497. [2022-01-18 05:32:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2496 states have (on average 2.890224358974359) internal successors, (7214), 2496 states have internal predecessors, (7214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 7214 transitions. [2022-01-18 05:32:18,118 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 7214 transitions. Word has length 32 [2022-01-18 05:32:18,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:18,118 INFO L470 AbstractCegarLoop]: Abstraction has 2497 states and 7214 transitions. [2022-01-18 05:32:18,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 7214 transitions. [2022-01-18 05:32:18,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:18,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:18,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:18,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 05:32:18,124 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:18,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:18,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1818022922, now seen corresponding path program 9 times [2022-01-18 05:32:18,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:18,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242265647] [2022-01-18 05:32:18,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:18,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:18,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:18,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242265647] [2022-01-18 05:32:18,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242265647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:18,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:18,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:32:18,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033145132] [2022-01-18 05:32:18,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:18,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:32:18,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:18,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:32:18,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:18,170 INFO L87 Difference]: Start difference. First operand 2497 states and 7214 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:18,361 INFO L93 Difference]: Finished difference Result 2921 states and 7631 transitions. [2022-01-18 05:32:18,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:32:18,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:18,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:18,368 INFO L225 Difference]: With dead ends: 2921 [2022-01-18 05:32:18,368 INFO L226 Difference]: Without dead ends: 2719 [2022-01-18 05:32:18,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:32:18,371 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 96 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:18,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 168 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:18,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-01-18 05:32:18,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 1853. [2022-01-18 05:32:18,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1852 states have (on average 2.6906047516198703) internal successors, (4983), 1852 states have internal predecessors, (4983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 4983 transitions. [2022-01-18 05:32:18,413 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 4983 transitions. Word has length 32 [2022-01-18 05:32:18,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:18,414 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 4983 transitions. [2022-01-18 05:32:18,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 4983 transitions. [2022-01-18 05:32:18,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:18,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:18,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:18,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 05:32:18,418 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:18,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:18,418 INFO L85 PathProgramCache]: Analyzing trace with hash -342667590, now seen corresponding path program 10 times [2022-01-18 05:32:18,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:18,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953309366] [2022-01-18 05:32:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:18,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:18,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:18,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953309366] [2022-01-18 05:32:18,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953309366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:18,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:18,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:32:18,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792335801] [2022-01-18 05:32:18,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:18,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:32:18,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:18,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:32:18,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:32:18,467 INFO L87 Difference]: Start difference. First operand 1853 states and 4983 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:18,620 INFO L93 Difference]: Finished difference Result 3038 states and 7985 transitions. [2022-01-18 05:32:18,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:32:18,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:18,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:18,628 INFO L225 Difference]: With dead ends: 3038 [2022-01-18 05:32:18,628 INFO L226 Difference]: Without dead ends: 2990 [2022-01-18 05:32:18,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:32:18,629 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 67 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:18,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 132 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:18,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-01-18 05:32:18,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1829. [2022-01-18 05:32:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1828 states have (on average 2.6756017505470457) internal successors, (4891), 1828 states have internal predecessors, (4891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 4891 transitions. [2022-01-18 05:32:18,679 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 4891 transitions. Word has length 32 [2022-01-18 05:32:18,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:18,680 INFO L470 AbstractCegarLoop]: Abstraction has 1829 states and 4891 transitions. [2022-01-18 05:32:18,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 4891 transitions. [2022-01-18 05:32:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:18,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:18,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:18,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 05:32:18,684 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash 310055704, now seen corresponding path program 11 times [2022-01-18 05:32:18,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:18,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451679990] [2022-01-18 05:32:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:18,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:18,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:18,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451679990] [2022-01-18 05:32:18,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451679990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:18,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:18,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:32:18,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348690102] [2022-01-18 05:32:18,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:18,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:32:18,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:18,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:32:18,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:18,760 INFO L87 Difference]: Start difference. First operand 1829 states and 4891 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:18,949 INFO L93 Difference]: Finished difference Result 3002 states and 7863 transitions. [2022-01-18 05:32:18,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:32:18,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:18,956 INFO L225 Difference]: With dead ends: 3002 [2022-01-18 05:32:18,957 INFO L226 Difference]: Without dead ends: 2834 [2022-01-18 05:32:18,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:32:18,958 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:18,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 151 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:18,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-01-18 05:32:18,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 1757. [2022-01-18 05:32:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1756 states have (on average 2.665717539863326) internal successors, (4681), 1756 states have internal predecessors, (4681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 4681 transitions. [2022-01-18 05:32:18,994 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 4681 transitions. Word has length 32 [2022-01-18 05:32:18,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:18,994 INFO L470 AbstractCegarLoop]: Abstraction has 1757 states and 4681 transitions. [2022-01-18 05:32:18,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:18,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 4681 transitions. [2022-01-18 05:32:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:18,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:18,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:18,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 05:32:18,998 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:18,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1448543468, now seen corresponding path program 12 times [2022-01-18 05:32:19,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:19,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551773818] [2022-01-18 05:32:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:19,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:19,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:19,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551773818] [2022-01-18 05:32:19,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551773818] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:19,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:19,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:32:19,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345566123] [2022-01-18 05:32:19,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:19,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:32:19,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:19,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:32:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:32:19,062 INFO L87 Difference]: Start difference. First operand 1757 states and 4681 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:19,300 INFO L93 Difference]: Finished difference Result 2972 states and 7731 transitions. [2022-01-18 05:32:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:32:19,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:19,308 INFO L225 Difference]: With dead ends: 2972 [2022-01-18 05:32:19,308 INFO L226 Difference]: Without dead ends: 2792 [2022-01-18 05:32:19,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-01-18 05:32:19,309 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 100 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:19,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 197 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:19,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2022-01-18 05:32:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 1715. [2022-01-18 05:32:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 2.6586931155192532) internal successors, (4557), 1714 states have internal predecessors, (4557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 4557 transitions. [2022-01-18 05:32:19,348 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 4557 transitions. Word has length 32 [2022-01-18 05:32:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:19,348 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 4557 transitions. [2022-01-18 05:32:19,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 4557 transitions. [2022-01-18 05:32:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:19,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:19,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:19,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 05:32:19,352 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:19,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1637324954, now seen corresponding path program 13 times [2022-01-18 05:32:19,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:19,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284858384] [2022-01-18 05:32:19,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:19,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:19,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:19,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284858384] [2022-01-18 05:32:19,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284858384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:19,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:19,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:32:19,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107308843] [2022-01-18 05:32:19,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:19,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:32:19,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:19,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:32:19,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:32:19,406 INFO L87 Difference]: Start difference. First operand 1715 states and 4557 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:19,581 INFO L93 Difference]: Finished difference Result 2909 states and 7590 transitions. [2022-01-18 05:32:19,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:32:19,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:19,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:19,588 INFO L225 Difference]: With dead ends: 2909 [2022-01-18 05:32:19,589 INFO L226 Difference]: Without dead ends: 2873 [2022-01-18 05:32:19,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:32:19,589 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 64 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:19,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 153 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:19,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2022-01-18 05:32:19,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 1632. [2022-01-18 05:32:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1631 states have (on average 2.6241569589209073) internal successors, (4280), 1631 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 4280 transitions. [2022-01-18 05:32:19,624 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 4280 transitions. Word has length 32 [2022-01-18 05:32:19,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:19,625 INFO L470 AbstractCegarLoop]: Abstraction has 1632 states and 4280 transitions. [2022-01-18 05:32:19,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 4280 transitions. [2022-01-18 05:32:19,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:19,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:19,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:19,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 05:32:19,628 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:19,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:19,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1199595272, now seen corresponding path program 14 times [2022-01-18 05:32:19,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:19,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361024258] [2022-01-18 05:32:19,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:19,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:19,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:19,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361024258] [2022-01-18 05:32:19,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361024258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:19,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:19,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:32:19,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737696089] [2022-01-18 05:32:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:19,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:32:19,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:19,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:32:19,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:19,676 INFO L87 Difference]: Start difference. First operand 1632 states and 4280 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:19,850 INFO L93 Difference]: Finished difference Result 2785 states and 7226 transitions. [2022-01-18 05:32:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:32:19,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:19,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:19,858 INFO L225 Difference]: With dead ends: 2785 [2022-01-18 05:32:19,858 INFO L226 Difference]: Without dead ends: 2701 [2022-01-18 05:32:19,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:32:19,859 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 79 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:19,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 159 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-01-18 05:32:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1572. [2022-01-18 05:32:19,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 2.602800763844685) internal successors, (4089), 1571 states have internal predecessors, (4089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 4089 transitions. [2022-01-18 05:32:19,919 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 4089 transitions. Word has length 32 [2022-01-18 05:32:19,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:19,919 INFO L470 AbstractCegarLoop]: Abstraction has 1572 states and 4089 transitions. [2022-01-18 05:32:19,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:19,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 4089 transitions. [2022-01-18 05:32:19,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:19,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:19,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:19,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 05:32:19,921 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:19,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:19,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1860899060, now seen corresponding path program 15 times [2022-01-18 05:32:19,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:19,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3079401] [2022-01-18 05:32:19,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:19,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:19,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:19,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:19,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3079401] [2022-01-18 05:32:19,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3079401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:19,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:19,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:32:19,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827700035] [2022-01-18 05:32:19,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:19,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:32:19,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:19,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:32:19,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:32:19,971 INFO L87 Difference]: Start difference. First operand 1572 states and 4089 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:20,233 INFO L93 Difference]: Finished difference Result 2741 states and 7066 transitions. [2022-01-18 05:32:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:32:20,234 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:20,240 INFO L225 Difference]: With dead ends: 2741 [2022-01-18 05:32:20,240 INFO L226 Difference]: Without dead ends: 2642 [2022-01-18 05:32:20,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-01-18 05:32:20,241 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 96 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:20,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 225 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:20,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-01-18 05:32:20,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1525. [2022-01-18 05:32:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 2.5990813648293964) internal successors, (3961), 1524 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 3961 transitions. [2022-01-18 05:32:20,271 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 3961 transitions. Word has length 32 [2022-01-18 05:32:20,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:20,271 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 3961 transitions. [2022-01-18 05:32:20,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 3961 transitions. [2022-01-18 05:32:20,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:20,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:20,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:20,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 05:32:20,274 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:20,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:20,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1645188150, now seen corresponding path program 16 times [2022-01-18 05:32:20,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:20,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196034137] [2022-01-18 05:32:20,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:20,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:20,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:20,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196034137] [2022-01-18 05:32:20,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196034137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:20,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:20,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:32:20,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986684494] [2022-01-18 05:32:20,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:20,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:32:20,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:20,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:32:20,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:20,315 INFO L87 Difference]: Start difference. First operand 1525 states and 3961 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:20,499 INFO L93 Difference]: Finished difference Result 2648 states and 6780 transitions. [2022-01-18 05:32:20,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:32:20,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:20,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:20,503 INFO L225 Difference]: With dead ends: 2648 [2022-01-18 05:32:20,503 INFO L226 Difference]: Without dead ends: 2576 [2022-01-18 05:32:20,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:32:20,504 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 90 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:20,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 151 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:20,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2022-01-18 05:32:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 1464. [2022-01-18 05:32:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 2.5598086124401913) internal successors, (3745), 1463 states have internal predecessors, (3745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 3745 transitions. [2022-01-18 05:32:20,533 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 3745 transitions. Word has length 32 [2022-01-18 05:32:20,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:20,534 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 3745 transitions. [2022-01-18 05:32:20,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 3745 transitions. [2022-01-18 05:32:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:20,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:20,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:20,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 05:32:20,537 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:20,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:20,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2061516180, now seen corresponding path program 17 times [2022-01-18 05:32:20,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:20,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180973420] [2022-01-18 05:32:20,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:20,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:20,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:20,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180973420] [2022-01-18 05:32:20,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180973420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:20,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:20,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:32:20,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900058295] [2022-01-18 05:32:20,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:20,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:32:20,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:20,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:32:20,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:32:20,581 INFO L87 Difference]: Start difference. First operand 1464 states and 3745 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:20,820 INFO L93 Difference]: Finished difference Result 2588 states and 6572 transitions. [2022-01-18 05:32:20,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:32:20,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:20,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:20,825 INFO L225 Difference]: With dead ends: 2588 [2022-01-18 05:32:20,825 INFO L226 Difference]: Without dead ends: 2505 [2022-01-18 05:32:20,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-01-18 05:32:20,826 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 108 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:20,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 199 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:32:20,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2022-01-18 05:32:20,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 1418. [2022-01-18 05:32:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 2.5772759350741) internal successors, (3652), 1417 states have internal predecessors, (3652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 3652 transitions. [2022-01-18 05:32:20,853 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 3652 transitions. Word has length 32 [2022-01-18 05:32:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:20,854 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 3652 transitions. [2022-01-18 05:32:20,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 3652 transitions. [2022-01-18 05:32:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:20,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:20,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:20,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 05:32:20,856 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:20,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1966189090, now seen corresponding path program 18 times [2022-01-18 05:32:20,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:20,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758779907] [2022-01-18 05:32:20,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:20,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:20,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:20,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758779907] [2022-01-18 05:32:20,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758779907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:20,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:20,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:32:20,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137464010] [2022-01-18 05:32:20,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:20,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:32:20,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:20,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:32:20,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:32:20,893 INFO L87 Difference]: Start difference. First operand 1418 states and 3652 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:21,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:21,007 INFO L93 Difference]: Finished difference Result 1974 states and 4941 transitions. [2022-01-18 05:32:21,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 05:32:21,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:21,010 INFO L225 Difference]: With dead ends: 1974 [2022-01-18 05:32:21,010 INFO L226 Difference]: Without dead ends: 1914 [2022-01-18 05:32:21,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:21,011 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 72 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:21,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 106 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2022-01-18 05:32:21,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 982. [2022-01-18 05:32:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 2.509683995922528) internal successors, (2462), 981 states have internal predecessors, (2462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 2462 transitions. [2022-01-18 05:32:21,032 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 2462 transitions. Word has length 32 [2022-01-18 05:32:21,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:21,032 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 2462 transitions. [2022-01-18 05:32:21,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:21,032 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 2462 transitions. [2022-01-18 05:32:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:21,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:21,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:21,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 05:32:21,034 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:21,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:21,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1945609602, now seen corresponding path program 19 times [2022-01-18 05:32:21,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:21,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79273364] [2022-01-18 05:32:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:21,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:21,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:21,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79273364] [2022-01-18 05:32:21,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79273364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:21,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:21,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:32:21,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555362479] [2022-01-18 05:32:21,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:21,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:32:21,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:32:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:32:21,073 INFO L87 Difference]: Start difference. First operand 982 states and 2462 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:21,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:21,202 INFO L93 Difference]: Finished difference Result 502 states and 1050 transitions. [2022-01-18 05:32:21,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:32:21,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:21,203 INFO L225 Difference]: With dead ends: 502 [2022-01-18 05:32:21,204 INFO L226 Difference]: Without dead ends: 234 [2022-01-18 05:32:21,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:32:21,204 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 61 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:21,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 126 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:21,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-01-18 05:32:21,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 162. [2022-01-18 05:32:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.1677018633540373) internal successors, (349), 161 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 349 transitions. [2022-01-18 05:32:21,208 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 349 transitions. Word has length 32 [2022-01-18 05:32:21,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:21,208 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 349 transitions. [2022-01-18 05:32:21,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 349 transitions. [2022-01-18 05:32:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 05:32:21,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:21,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:21,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 05:32:21,209 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 05:32:21,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:21,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1091032676, now seen corresponding path program 20 times [2022-01-18 05:32:21,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:21,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378433186] [2022-01-18 05:32:21,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:21,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:21,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:21,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:21,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378433186] [2022-01-18 05:32:21,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378433186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:21,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:21,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:32:21,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90478313] [2022-01-18 05:32:21,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:21,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:32:21,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:21,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:32:21,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:32:21,258 INFO L87 Difference]: Start difference. First operand 162 states and 349 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:21,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:21,362 INFO L93 Difference]: Finished difference Result 105 states and 189 transitions. [2022-01-18 05:32:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:32:21,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-18 05:32:21,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:21,363 INFO L225 Difference]: With dead ends: 105 [2022-01-18 05:32:21,363 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 05:32:21,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-01-18 05:32:21,363 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 38 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:21,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 84 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:21,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 05:32:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 05:32:21,364 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) [2022-01-18 05:32:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 05:32:21,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-01-18 05:32:21,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:21,365 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 05:32:21,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:32:21,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 05:32:21,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 05:32:21,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-01-18 05:32:21,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 05:32:21,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 05:32:21,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 05:32:21,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 05:32:21,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 05:32:21,375 INFO L732 BasicCegarLoop]: Path program histogram: [20] [2022-01-18 05:32:21,378 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 05:32:21,378 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 05:32:21,381 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 05:32:21 BasicIcfg [2022-01-18 05:32:21,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 05:32:21,381 INFO L158 Benchmark]: Toolchain (without parser) took 7374.72ms. Allocated memory was 396.4MB in the beginning and 574.6MB in the end (delta: 178.3MB). Free memory was 358.2MB in the beginning and 318.5MB in the end (delta: 39.6MB). Peak memory consumption was 219.9MB. Max. memory is 16.0GB. [2022-01-18 05:32:21,381 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 396.4MB. Free memory is still 359.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 05:32:21,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.14ms. Allocated memory is still 396.4MB. Free memory was 358.0MB in the beginning and 356.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 05:32:21,382 INFO L158 Benchmark]: Boogie Preprocessor took 18.13ms. Allocated memory is still 396.4MB. Free memory was 356.5MB in the beginning and 355.6MB in the end (delta: 875.5kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 05:32:21,386 INFO L158 Benchmark]: RCFGBuilder took 214.84ms. Allocated memory is still 396.4MB. Free memory was 355.5MB in the beginning and 345.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 05:32:21,386 INFO L158 Benchmark]: TraceAbstraction took 7113.64ms. Allocated memory was 396.4MB in the beginning and 574.6MB in the end (delta: 178.3MB). Free memory was 345.2MB in the beginning and 318.5MB in the end (delta: 26.6MB). Peak memory consumption was 207.3MB. Max. memory is 16.0GB. [2022-01-18 05:32:21,390 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 0.11ms. Allocated memory is still 396.4MB. Free memory is still 359.2MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 22.14ms. Allocated memory is still 396.4MB. Free memory was 358.0MB in the beginning and 356.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.13ms. Allocated memory is still 396.4MB. Free memory was 356.5MB in the beginning and 355.6MB in the end (delta: 875.5kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 214.84ms. Allocated memory is still 396.4MB. Free memory was 355.5MB in the beginning and 345.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 7113.64ms. Allocated memory was 396.4MB in the beginning and 574.6MB in the end (delta: 178.3MB). Free memory was 345.2MB in the beginning and 318.5MB in the end (delta: 26.6MB). Peak memory consumption was 207.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 80]: 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 9 procedures, 68 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.1s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1535 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1535 mSDsluCounter, 2727 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3231 mSDsCounter, 578 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4829 IncrementalHoareTripleChecker+Invalid, 5407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 578 mSolverCounterUnsat, 663 mSDtfsCounter, 4829 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 210 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2547occurred in iteration=7, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 22320 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 640 NumberOfCodeBlocks, 640 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 620 ConstructedInterpolants, 0 QuantifiedInterpolants, 2111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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! [2022-01-18 05:32:21,429 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...