/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 16:01:26,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 16:01:26,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 16:01:26,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 16:01:26,494 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 [2022-03-15 16:01:26,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 16:01:26,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 16:01:26,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 16:01:26,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 16:01:26,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 16:01:26,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 16:01:26,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 16:01:26,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 16:01:26,508 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 16:01:26,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 16:01:26,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 16:01:26,510 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 16:01:26,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 16:01:26,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 16:01:26,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 16:01:26,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 16:01:26,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 16:01:26,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 16:01:26,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 16:01:26,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 16:01:26,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 16:01:26,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 16:01:26,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 16:01:26,514 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 16:01:26,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 16:01:26,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 16:01:26,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 16:01:26,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 16:01:26,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 16:01:26,737 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 16:01:26,738 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 16:01:26,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl [2022-03-15 16:01:26,739 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl' [2022-03-15 16:01:26,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 16:01:26,770 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 16:01:26,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 16:01:26,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 16:01:26,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 16:01:26,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,790 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 16:01:26,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 16:01:26,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 16:01:26,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 16:01:26,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 16:01:26,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 16:01:26,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 16:01:26,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 16:01:26,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 16:01:26,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/1) ... [2022-03-15 16:01:26,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 16:01:26,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 16:01:26,837 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) [2022-03-15 16:01:26,840 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 [2022-03-15 16:01:26,874 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 16:01:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 16:01:26,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 16:01:26,874 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 16:01:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 16:01:26,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 16:01:26,874 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 16:01:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 16:01:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 16:01:26,875 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 16:01:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 16:01:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 16:01:26,875 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-15 16:01:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 16:01:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 16:01:26,875 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-03-15 16:01:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-15 16:01:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-15 16:01:26,876 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2022-03-15 16:01:26,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-03-15 16:01:26,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-03-15 16:01:26,876 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 16:01:26,913 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 16:01:26,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 16:01:26,997 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 16:01:27,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 16:01:27,016 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 16:01:27,017 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 04:01:27 BoogieIcfgContainer [2022-03-15 16:01:27,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 16:01:27,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 16:01:27,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 16:01:27,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 16:01:27,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:01:26" (1/2) ... [2022-03-15 16:01:27,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554b2139 and model type barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 04:01:27, skipping insertion in model container [2022-03-15 16:01:27,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 04:01:27" (2/2) ... [2022-03-15 16:01:27,047 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier.wvr.bpl [2022-03-15 16:01:27,050 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 16:01:27,051 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 16:01:27,051 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 16:01:27,051 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 16:01:27,119 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-03-15 16:01:27,181 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 16:01:27,192 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 16:01:27,193 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-03-15 16:01:27,211 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 65 transitions, 202 flow [2022-03-15 16:01:27,534 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7229 states, 7228 states have (on average 3.6694798007747647) internal successors, (26523), 7228 states have internal predecessors, (26523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:27,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 7229 states, 7228 states have (on average 3.6694798007747647) internal successors, (26523), 7228 states have internal predecessors, (26523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:27,627 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:27,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:27,628 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:27,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:27,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1582648075, now seen corresponding path program 1 times [2022-03-15 16:01:27,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:27,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503665080] [2022-03-15 16:01:27,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:27,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:27,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:27,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503665080] [2022-03-15 16:01:27,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503665080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:27,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:27,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 16:01:27,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624973834] [2022-03-15 16:01:27,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:27,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 16:01:27,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:27,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 16:01:27,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:01:27,814 INFO L87 Difference]: Start difference. First operand has 7229 states, 7228 states have (on average 3.6694798007747647) internal successors, (26523), 7228 states have internal predecessors, (26523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:27,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:27,957 INFO L93 Difference]: Finished difference Result 5614 states and 20074 transitions. [2022-03-15 16:01:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 16:01:27,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:28,006 INFO L225 Difference]: With dead ends: 5614 [2022-03-15 16:01:28,007 INFO L226 Difference]: Without dead ends: 5614 [2022-03-15 16:01:28,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:01:28,014 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 22 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:28,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 80 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:28,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5614 states. [2022-03-15 16:01:28,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5614 to 5614. [2022-03-15 16:01:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5614 states, 5613 states have (on average 3.5763406378050955) internal successors, (20074), 5613 states have internal predecessors, (20074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5614 states to 5614 states and 20074 transitions. [2022-03-15 16:01:28,393 INFO L78 Accepts]: Start accepts. Automaton has 5614 states and 20074 transitions. Word has length 47 [2022-03-15 16:01:28,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:28,393 INFO L470 AbstractCegarLoop]: Abstraction has 5614 states and 20074 transitions. [2022-03-15 16:01:28,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5614 states and 20074 transitions. [2022-03-15 16:01:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:28,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:28,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:28,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 16:01:28,412 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:28,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:28,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2098813663, now seen corresponding path program 2 times [2022-03-15 16:01:28,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:28,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036370576] [2022-03-15 16:01:28,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:28,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:28,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:28,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:28,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036370576] [2022-03-15 16:01:28,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036370576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:28,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:28,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 16:01:28,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489747613] [2022-03-15 16:01:28,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:28,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 16:01:28,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:28,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 16:01:28,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:01:28,456 INFO L87 Difference]: Start difference. First operand 5614 states and 20074 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:28,562 INFO L93 Difference]: Finished difference Result 4822 states and 17110 transitions. [2022-03-15 16:01:28,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 16:01:28,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:28,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:28,593 INFO L225 Difference]: With dead ends: 4822 [2022-03-15 16:01:28,593 INFO L226 Difference]: Without dead ends: 4822 [2022-03-15 16:01:28,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:01:28,599 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 18 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:28,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 80 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 16:01:28,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4822 states. [2022-03-15 16:01:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4822 to 4822. [2022-03-15 16:01:28,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4821 states have (on average 3.5490562124040657) internal successors, (17110), 4821 states have internal predecessors, (17110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 17110 transitions. [2022-03-15 16:01:28,856 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 17110 transitions. Word has length 47 [2022-03-15 16:01:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:28,857 INFO L470 AbstractCegarLoop]: Abstraction has 4822 states and 17110 transitions. [2022-03-15 16:01:28,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 17110 transitions. [2022-03-15 16:01:28,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:28,869 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:28,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:28,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 16:01:28,870 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:28,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:28,871 INFO L85 PathProgramCache]: Analyzing trace with hash 949523355, now seen corresponding path program 3 times [2022-03-15 16:01:28,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:28,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211275608] [2022-03-15 16:01:28,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:28,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:29,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:29,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211275608] [2022-03-15 16:01:29,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211275608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:29,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:29,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:01:29,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635474786] [2022-03-15 16:01:29,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:29,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:01:29,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:29,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:01:29,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:29,381 INFO L87 Difference]: Start difference. First operand 4822 states and 17110 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:31,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:31,080 INFO L93 Difference]: Finished difference Result 6172 states and 21633 transitions. [2022-03-15 16:01:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:01:31,080 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:31,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:31,107 INFO L225 Difference]: With dead ends: 6172 [2022-03-15 16:01:31,107 INFO L226 Difference]: Without dead ends: 6045 [2022-03-15 16:01:31,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 16:01:31,108 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 368 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:31,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 1324 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:01:31,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-03-15 16:01:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 5006. [2022-03-15 16:01:31,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5006 states, 5005 states have (on average 3.5384615384615383) internal successors, (17710), 5005 states have internal predecessors, (17710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 17710 transitions. [2022-03-15 16:01:31,236 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 17710 transitions. Word has length 47 [2022-03-15 16:01:31,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:31,236 INFO L470 AbstractCegarLoop]: Abstraction has 5006 states and 17710 transitions. [2022-03-15 16:01:31,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 17710 transitions. [2022-03-15 16:01:31,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:31,249 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:31,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:31,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 16:01:31,250 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:31,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:31,250 INFO L85 PathProgramCache]: Analyzing trace with hash -401225249, now seen corresponding path program 4 times [2022-03-15 16:01:31,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:31,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118335607] [2022-03-15 16:01:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:31,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:31,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:31,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118335607] [2022-03-15 16:01:31,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118335607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:31,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:31,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:01:31,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314057996] [2022-03-15 16:01:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:31,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:01:31,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:31,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:01:31,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:31,637 INFO L87 Difference]: Start difference. First operand 5006 states and 17710 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:33,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:33,864 INFO L93 Difference]: Finished difference Result 8462 states and 29832 transitions. [2022-03-15 16:01:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 16:01:33,864 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:33,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:33,892 INFO L225 Difference]: With dead ends: 8462 [2022-03-15 16:01:33,892 INFO L226 Difference]: Without dead ends: 8373 [2022-03-15 16:01:33,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=246, Invalid=1916, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:01:33,894 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 565 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 3750 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 3812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:33,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 1969 Invalid, 3812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3750 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:01:33,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8373 states. [2022-03-15 16:01:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8373 to 5198. [2022-03-15 16:01:34,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5197 states have (on average 3.529343852222436) internal successors, (18342), 5197 states have internal predecessors, (18342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 18342 transitions. [2022-03-15 16:01:34,094 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 18342 transitions. Word has length 47 [2022-03-15 16:01:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:34,094 INFO L470 AbstractCegarLoop]: Abstraction has 5198 states and 18342 transitions. [2022-03-15 16:01:34,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 18342 transitions. [2022-03-15 16:01:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:34,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:34,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:34,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 16:01:34,110 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:34,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1251877157, now seen corresponding path program 5 times [2022-03-15 16:01:34,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:34,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873763643] [2022-03-15 16:01:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:34,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:34,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:34,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873763643] [2022-03-15 16:01:34,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873763643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:34,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:34,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:01:34,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181209986] [2022-03-15 16:01:34,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:34,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:01:34,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:34,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:01:34,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:34,403 INFO L87 Difference]: Start difference. First operand 5198 states and 18342 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:36,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:36,790 INFO L93 Difference]: Finished difference Result 8595 states and 30668 transitions. [2022-03-15 16:01:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 16:01:36,790 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:36,818 INFO L225 Difference]: With dead ends: 8595 [2022-03-15 16:01:36,818 INFO L226 Difference]: Without dead ends: 8492 [2022-03-15 16:01:36,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=311, Invalid=2769, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 16:01:36,820 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 592 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 3986 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:36,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [592 Valid, 2026 Invalid, 4046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3986 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:01:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8492 states. [2022-03-15 16:01:36,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8492 to 5186. [2022-03-15 16:01:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 5185 states have (on average 3.5305689488910317) internal successors, (18306), 5185 states have internal predecessors, (18306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 18306 transitions. [2022-03-15 16:01:37,026 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 18306 transitions. Word has length 47 [2022-03-15 16:01:37,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:37,027 INFO L470 AbstractCegarLoop]: Abstraction has 5186 states and 18306 transitions. [2022-03-15 16:01:37,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 18306 transitions. [2022-03-15 16:01:37,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:37,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:37,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:37,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 16:01:37,041 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:37,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:37,045 INFO L85 PathProgramCache]: Analyzing trace with hash 923930395, now seen corresponding path program 6 times [2022-03-15 16:01:37,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:37,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225254633] [2022-03-15 16:01:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:37,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:37,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:37,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225254633] [2022-03-15 16:01:37,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225254633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:37,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:37,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:01:37,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57943560] [2022-03-15 16:01:37,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:37,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:01:37,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:37,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:01:37,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:01:37,328 INFO L87 Difference]: Start difference. First operand 5186 states and 18306 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:39,253 INFO L93 Difference]: Finished difference Result 7581 states and 26484 transitions. [2022-03-15 16:01:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 16:01:39,254 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:39,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:39,280 INFO L225 Difference]: With dead ends: 7581 [2022-03-15 16:01:39,280 INFO L226 Difference]: Without dead ends: 7444 [2022-03-15 16:01:39,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=2007, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 16:01:39,284 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 453 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 3395 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 3439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:39,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1523 Invalid, 3439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:01:39,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7444 states. [2022-03-15 16:01:39,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7444 to 5366. [2022-03-15 16:01:39,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 3.52022367194781) internal successors, (18886), 5365 states have internal predecessors, (18886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 18886 transitions. [2022-03-15 16:01:39,468 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 18886 transitions. Word has length 47 [2022-03-15 16:01:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:39,469 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 18886 transitions. [2022-03-15 16:01:39,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 18886 transitions. [2022-03-15 16:01:39,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:39,487 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:39,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:39,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 16:01:39,487 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:39,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:39,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1054944067, now seen corresponding path program 7 times [2022-03-15 16:01:39,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:39,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790451968] [2022-03-15 16:01:39,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:39,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:39,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:39,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790451968] [2022-03-15 16:01:39,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790451968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:39,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:39,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:01:39,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846726986] [2022-03-15 16:01:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:39,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:01:39,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:39,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:01:39,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:39,830 INFO L87 Difference]: Start difference. First operand 5366 states and 18886 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:42,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:42,124 INFO L93 Difference]: Finished difference Result 8646 states and 30471 transitions. [2022-03-15 16:01:42,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 16:01:42,124 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:42,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:42,146 INFO L225 Difference]: With dead ends: 8646 [2022-03-15 16:01:42,146 INFO L226 Difference]: Without dead ends: 8557 [2022-03-15 16:01:42,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=294, Invalid=2358, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 16:01:42,147 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 601 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 3921 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 3991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:42,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 1857 Invalid, 3991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3921 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:01:42,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8557 states. [2022-03-15 16:01:42,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8557 to 5370. [2022-03-15 16:01:42,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5370 states, 5369 states have (on average 3.5190910784131124) internal successors, (18894), 5369 states have internal predecessors, (18894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:42,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5370 states to 5370 states and 18894 transitions. [2022-03-15 16:01:42,298 INFO L78 Accepts]: Start accepts. Automaton has 5370 states and 18894 transitions. Word has length 47 [2022-03-15 16:01:42,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:42,298 INFO L470 AbstractCegarLoop]: Abstraction has 5370 states and 18894 transitions. [2022-03-15 16:01:42,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5370 states and 18894 transitions. [2022-03-15 16:01:42,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:42,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:42,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:42,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 16:01:42,309 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:42,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:42,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1905595975, now seen corresponding path program 8 times [2022-03-15 16:01:42,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:42,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306322514] [2022-03-15 16:01:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:42,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:42,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:42,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306322514] [2022-03-15 16:01:42,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306322514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:42,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:42,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:01:42,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683116298] [2022-03-15 16:01:42,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:42,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:01:42,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:42,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:01:42,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:42,589 INFO L87 Difference]: Start difference. First operand 5370 states and 18894 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:44,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:44,943 INFO L93 Difference]: Finished difference Result 9233 states and 32861 transitions. [2022-03-15 16:01:44,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 16:01:44,944 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:44,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:44,967 INFO L225 Difference]: With dead ends: 9233 [2022-03-15 16:01:44,967 INFO L226 Difference]: Without dead ends: 9102 [2022-03-15 16:01:44,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=330, Invalid=2976, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 16:01:44,968 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 623 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 4110 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 4179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:44,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 2084 Invalid, 4179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4110 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:01:44,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-03-15 16:01:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 5330. [2022-03-15 16:01:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 3.5207355976731094) internal successors, (18762), 5329 states have internal predecessors, (18762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:45,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 18762 transitions. [2022-03-15 16:01:45,114 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 18762 transitions. Word has length 47 [2022-03-15 16:01:45,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:45,114 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 18762 transitions. [2022-03-15 16:01:45,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:45,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 18762 transitions. [2022-03-15 16:01:45,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:45,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:45,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:45,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 16:01:45,127 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:45,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1744544869, now seen corresponding path program 9 times [2022-03-15 16:01:45,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:45,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795264692] [2022-03-15 16:01:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:45,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:45,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:45,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795264692] [2022-03-15 16:01:45,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795264692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:45,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:45,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:01:45,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358624956] [2022-03-15 16:01:45,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:45,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:01:45,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:45,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:01:45,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:01:45,471 INFO L87 Difference]: Start difference. First operand 5330 states and 18762 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:46,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:46,873 INFO L93 Difference]: Finished difference Result 6689 states and 23271 transitions. [2022-03-15 16:01:46,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:01:46,873 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:46,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:46,888 INFO L225 Difference]: With dead ends: 6689 [2022-03-15 16:01:46,889 INFO L226 Difference]: Without dead ends: 6562 [2022-03-15 16:01:46,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:01:46,890 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 440 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:46,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 1454 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:01:46,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-03-15 16:01:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 5342. [2022-03-15 16:01:47,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 3.5184422392810335) internal successors, (18792), 5341 states have internal predecessors, (18792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:47,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 18792 transitions. [2022-03-15 16:01:47,016 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 18792 transitions. Word has length 47 [2022-03-15 16:01:47,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:47,016 INFO L470 AbstractCegarLoop]: Abstraction has 5342 states and 18792 transitions. [2022-03-15 16:01:47,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 18792 transitions. [2022-03-15 16:01:47,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:47,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:47,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:47,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 16:01:47,027 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:47,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:47,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1199673823, now seen corresponding path program 10 times [2022-03-15 16:01:47,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:47,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978763513] [2022-03-15 16:01:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:47,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:47,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:47,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:47,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978763513] [2022-03-15 16:01:47,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978763513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:47,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:47,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:01:47,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847412197] [2022-03-15 16:01:47,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:47,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:01:47,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:01:47,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:01:47,362 INFO L87 Difference]: Start difference. First operand 5342 states and 18792 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:49,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:49,556 INFO L93 Difference]: Finished difference Result 8910 states and 31376 transitions. [2022-03-15 16:01:49,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 16:01:49,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:49,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:49,577 INFO L225 Difference]: With dead ends: 8910 [2022-03-15 16:01:49,578 INFO L226 Difference]: Without dead ends: 8821 [2022-03-15 16:01:49,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=285, Invalid=2367, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 16:01:49,579 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 639 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 4039 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 4111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:49,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 2156 Invalid, 4111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4039 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:01:49,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8821 states. [2022-03-15 16:01:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8821 to 5358. [2022-03-15 16:01:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5357 states have (on average 3.516520440545081) internal successors, (18838), 5357 states have internal predecessors, (18838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 18838 transitions. [2022-03-15 16:01:49,715 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 18838 transitions. Word has length 47 [2022-03-15 16:01:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:49,715 INFO L470 AbstractCegarLoop]: Abstraction has 5358 states and 18838 transitions. [2022-03-15 16:01:49,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 18838 transitions. [2022-03-15 16:01:49,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:49,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:49,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:49,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 16:01:49,726 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash 349021915, now seen corresponding path program 11 times [2022-03-15 16:01:49,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:49,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583592595] [2022-03-15 16:01:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:49,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:49,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:49,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583592595] [2022-03-15 16:01:49,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583592595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:49,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:49,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:01:49,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946928616] [2022-03-15 16:01:49,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:49,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:01:49,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:49,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:01:49,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:01:49,996 INFO L87 Difference]: Start difference. First operand 5358 states and 18838 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:52,522 INFO L93 Difference]: Finished difference Result 8807 states and 31346 transitions. [2022-03-15 16:01:52,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-15 16:01:52,522 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:52,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:52,544 INFO L225 Difference]: With dead ends: 8807 [2022-03-15 16:01:52,544 INFO L226 Difference]: Without dead ends: 8704 [2022-03-15 16:01:52,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=405, Invalid=3755, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 16:01:52,546 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 699 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 4042 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 4042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:52,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 2053 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 4042 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:01:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2022-03-15 16:01:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 5338. [2022-03-15 16:01:52,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 3.519955030916245) internal successors, (18786), 5337 states have internal predecessors, (18786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:52,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 18786 transitions. [2022-03-15 16:01:52,661 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 18786 transitions. Word has length 47 [2022-03-15 16:01:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:52,661 INFO L470 AbstractCegarLoop]: Abstraction has 5338 states and 18786 transitions. [2022-03-15 16:01:52,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:52,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 18786 transitions. [2022-03-15 16:01:52,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:52,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:52,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:52,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 16:01:52,673 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:52,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:52,673 INFO L85 PathProgramCache]: Analyzing trace with hash -202621511, now seen corresponding path program 12 times [2022-03-15 16:01:52,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:52,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037639242] [2022-03-15 16:01:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:52,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:52,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:52,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:52,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037639242] [2022-03-15 16:01:52,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037639242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:52,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:52,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:01:52,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932600780] [2022-03-15 16:01:52,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:52,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:01:52,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:01:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:01:52,976 INFO L87 Difference]: Start difference. First operand 5338 states and 18786 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:54,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:54,427 INFO L93 Difference]: Finished difference Result 6388 states and 22235 transitions. [2022-03-15 16:01:54,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:01:54,432 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:54,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:54,448 INFO L225 Difference]: With dead ends: 6388 [2022-03-15 16:01:54,448 INFO L226 Difference]: Without dead ends: 6261 [2022-03-15 16:01:54,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=1408, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:01:54,449 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 370 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2990 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:54,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 1457 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2990 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:01:54,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6261 states. [2022-03-15 16:01:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6261 to 5350. [2022-03-15 16:01:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5350 states, 5349 states have (on average 3.5176668536174986) internal successors, (18816), 5349 states have internal predecessors, (18816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5350 states to 5350 states and 18816 transitions. [2022-03-15 16:01:54,559 INFO L78 Accepts]: Start accepts. Automaton has 5350 states and 18816 transitions. Word has length 47 [2022-03-15 16:01:54,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:54,559 INFO L470 AbstractCegarLoop]: Abstraction has 5350 states and 18816 transitions. [2022-03-15 16:01:54,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5350 states and 18816 transitions. [2022-03-15 16:01:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:54,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:54,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:54,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 16:01:54,569 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:54,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:54,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1624749749, now seen corresponding path program 13 times [2022-03-15 16:01:54,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:54,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155374561] [2022-03-15 16:01:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:54,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:54,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:54,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155374561] [2022-03-15 16:01:54,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155374561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:54,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:54,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:01:54,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930487047] [2022-03-15 16:01:54,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:54,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:01:54,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:54,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:01:54,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:54,839 INFO L87 Difference]: Start difference. First operand 5350 states and 18816 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:56,253 INFO L93 Difference]: Finished difference Result 6457 states and 22437 transitions. [2022-03-15 16:01:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:01:56,253 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:56,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:56,267 INFO L225 Difference]: With dead ends: 6457 [2022-03-15 16:01:56,267 INFO L226 Difference]: Without dead ends: 6360 [2022-03-15 16:01:56,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=1335, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:01:56,268 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 379 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 2898 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:56,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1406 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2898 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:01:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6360 states. [2022-03-15 16:01:56,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6360 to 5356. [2022-03-15 16:01:56,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 3.5165266106442576) internal successors, (18831), 5355 states have internal predecessors, (18831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 18831 transitions. [2022-03-15 16:01:56,358 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 18831 transitions. Word has length 47 [2022-03-15 16:01:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:56,358 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 18831 transitions. [2022-03-15 16:01:56,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 18831 transitions. [2022-03-15 16:01:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:56,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:56,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:56,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 16:01:56,367 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:56,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:56,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1627423575, now seen corresponding path program 14 times [2022-03-15 16:01:56,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:56,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897145960] [2022-03-15 16:01:56,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:56,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:56,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:56,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897145960] [2022-03-15 16:01:56,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897145960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:56,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:56,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:01:56,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631714172] [2022-03-15 16:01:56,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:56,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:01:56,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:56,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:01:56,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:01:56,645 INFO L87 Difference]: Start difference. First operand 5356 states and 18831 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:58,015 INFO L93 Difference]: Finished difference Result 6358 states and 22132 transitions. [2022-03-15 16:01:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:01:58,015 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:01:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:58,036 INFO L225 Difference]: With dead ends: 6358 [2022-03-15 16:01:58,036 INFO L226 Difference]: Without dead ends: 6249 [2022-03-15 16:01:58,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1407, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:01:58,038 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 381 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 3022 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:58,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1463 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3022 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:01:58,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6249 states. [2022-03-15 16:01:58,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6249 to 5338. [2022-03-15 16:01:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 3.5192055461869964) internal successors, (18782), 5337 states have internal predecessors, (18782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:58,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 18782 transitions. [2022-03-15 16:01:58,141 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 18782 transitions. Word has length 47 [2022-03-15 16:01:58,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:58,141 INFO L470 AbstractCegarLoop]: Abstraction has 5338 states and 18782 transitions. [2022-03-15 16:01:58,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:01:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 18782 transitions. [2022-03-15 16:01:58,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:01:58,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:58,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:58,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 16:01:58,151 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:01:58,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:58,151 INFO L85 PathProgramCache]: Analyzing trace with hash 318951903, now seen corresponding path program 15 times [2022-03-15 16:01:58,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:58,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078637952] [2022-03-15 16:01:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:58,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:58,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:58,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:58,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078637952] [2022-03-15 16:01:58,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078637952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:58,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:58,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:01:58,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052188289] [2022-03-15 16:01:58,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:58,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:01:58,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:58,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:01:58,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:01:58,419 INFO L87 Difference]: Start difference. First operand 5338 states and 18782 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:00,026 INFO L93 Difference]: Finished difference Result 6590 states and 22853 transitions. [2022-03-15 16:02:00,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:02:00,027 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:00,043 INFO L225 Difference]: With dead ends: 6590 [2022-03-15 16:02:00,043 INFO L226 Difference]: Without dead ends: 6469 [2022-03-15 16:02:00,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 16:02:00,046 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 492 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 3092 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:00,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 1494 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3092 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6469 states. [2022-03-15 16:02:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6469 to 5344. [2022-03-15 16:02:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 3.517686692869175) internal successors, (18795), 5343 states have internal predecessors, (18795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 18795 transitions. [2022-03-15 16:02:00,150 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 18795 transitions. Word has length 47 [2022-03-15 16:02:00,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:00,150 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 18795 transitions. [2022-03-15 16:02:00,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 18795 transitions. [2022-03-15 16:02:00,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:00,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:00,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:00,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 16:02:00,159 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:00,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1890373339, now seen corresponding path program 16 times [2022-03-15 16:02:00,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:00,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935858397] [2022-03-15 16:02:00,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:00,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:00,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:00,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935858397] [2022-03-15 16:02:00,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935858397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:00,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:00,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:00,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616623395] [2022-03-15 16:02:00,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:00,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:00,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:00,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:00,414 INFO L87 Difference]: Start difference. First operand 5344 states and 18795 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:02,300 INFO L93 Difference]: Finished difference Result 7051 states and 24466 transitions. [2022-03-15 16:02:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 16:02:02,300 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:02,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:02,315 INFO L225 Difference]: With dead ends: 7051 [2022-03-15 16:02:02,315 INFO L226 Difference]: Without dead ends: 6956 [2022-03-15 16:02:02,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 16:02:02,317 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 525 mSDsluCounter, 3051 mSDsCounter, 0 mSdLazyCounter, 3653 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:02,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 1698 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3653 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:02:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2022-03-15 16:02:02,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 5346. [2022-03-15 16:02:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5346 states, 5345 states have (on average 3.517305893358279) internal successors, (18800), 5345 states have internal predecessors, (18800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 18800 transitions. [2022-03-15 16:02:02,407 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 18800 transitions. Word has length 47 [2022-03-15 16:02:02,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:02,408 INFO L470 AbstractCegarLoop]: Abstraction has 5346 states and 18800 transitions. [2022-03-15 16:02:02,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 18800 transitions. [2022-03-15 16:02:02,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:02,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:02,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:02,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 16:02:02,417 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:02,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:02,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2105702279, now seen corresponding path program 17 times [2022-03-15 16:02:02,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:02,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835518933] [2022-03-15 16:02:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:02,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:02,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:02,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:02,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835518933] [2022-03-15 16:02:02,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835518933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:02,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:02,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:02:02,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938752061] [2022-03-15 16:02:02,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:02,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:02:02,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:02,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:02:02,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:02:02,691 INFO L87 Difference]: Start difference. First operand 5346 states and 18800 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:03,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:03,935 INFO L93 Difference]: Finished difference Result 6453 states and 22421 transitions. [2022-03-15 16:02:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 16:02:03,936 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:03,950 INFO L225 Difference]: With dead ends: 6453 [2022-03-15 16:02:03,950 INFO L226 Difference]: Without dead ends: 6356 [2022-03-15 16:02:03,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=1330, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:02:03,951 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 397 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:03,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1279 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:02:03,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-03-15 16:02:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 5352. [2022-03-15 16:02:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 3.5161652027658383) internal successors, (18815), 5351 states have internal predecessors, (18815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:04,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 18815 transitions. [2022-03-15 16:02:04,045 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 18815 transitions. Word has length 47 [2022-03-15 16:02:04,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:04,045 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 18815 transitions. [2022-03-15 16:02:04,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:04,045 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 18815 transitions. [2022-03-15 16:02:04,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:04,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:04,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:04,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 16:02:04,054 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:04,054 INFO L85 PathProgramCache]: Analyzing trace with hash 463844507, now seen corresponding path program 18 times [2022-03-15 16:02:04,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:04,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690541839] [2022-03-15 16:02:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:04,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:04,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:04,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690541839] [2022-03-15 16:02:04,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690541839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:04,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:04,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:04,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246556931] [2022-03-15 16:02:04,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:04,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:04,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:04,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:04,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:04,310 INFO L87 Difference]: Start difference. First operand 5352 states and 18815 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:05,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:05,726 INFO L93 Difference]: Finished difference Result 6354 states and 22116 transitions. [2022-03-15 16:02:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 16:02:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:05,739 INFO L225 Difference]: With dead ends: 6354 [2022-03-15 16:02:05,739 INFO L226 Difference]: Without dead ends: 6251 [2022-03-15 16:02:05,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:02:05,741 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 383 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 2917 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 2941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:05,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1400 Invalid, 2941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2917 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:05,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6251 states. [2022-03-15 16:02:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6251 to 5340. [2022-03-15 16:02:05,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 3.5188237497658736) internal successors, (18787), 5339 states have internal predecessors, (18787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 18787 transitions. [2022-03-15 16:02:05,815 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 18787 transitions. Word has length 47 [2022-03-15 16:02:05,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:05,815 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 18787 transitions. [2022-03-15 16:02:05,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:05,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 18787 transitions. [2022-03-15 16:02:05,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:05,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:05,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:05,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 16:02:05,824 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:05,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1760511687, now seen corresponding path program 19 times [2022-03-15 16:02:05,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:05,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903968681] [2022-03-15 16:02:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:05,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:06,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:06,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:06,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903968681] [2022-03-15 16:02:06,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903968681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:06,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:06,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:02:06,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305466799] [2022-03-15 16:02:06,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:06,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:02:06,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:06,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:02:06,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:02:06,069 INFO L87 Difference]: Start difference. First operand 5340 states and 18787 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:07,409 INFO L93 Difference]: Finished difference Result 6323 states and 22051 transitions. [2022-03-15 16:02:07,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-15 16:02:07,409 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:07,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:07,423 INFO L225 Difference]: With dead ends: 6323 [2022-03-15 16:02:07,423 INFO L226 Difference]: Without dead ends: 6186 [2022-03-15 16:02:07,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:02:07,424 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 370 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 2742 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:07,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 1392 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2742 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6186 states. [2022-03-15 16:02:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6186 to 5382. [2022-03-15 16:02:07,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 3.5108715852072105) internal successors, (18892), 5381 states have internal predecessors, (18892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 18892 transitions. [2022-03-15 16:02:07,512 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 18892 transitions. Word has length 47 [2022-03-15 16:02:07,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:07,512 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 18892 transitions. [2022-03-15 16:02:07,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 18892 transitions. [2022-03-15 16:02:07,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:07,520 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:07,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:07,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 16:02:07,520 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:07,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:07,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1725515001, now seen corresponding path program 20 times [2022-03-15 16:02:07,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:07,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195697503] [2022-03-15 16:02:07,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:07,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:07,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:07,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195697503] [2022-03-15 16:02:07,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195697503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:07,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:07,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:07,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471927149] [2022-03-15 16:02:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:07,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:07,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:07,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:07,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:07,781 INFO L87 Difference]: Start difference. First operand 5382 states and 18892 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:09,287 INFO L93 Difference]: Finished difference Result 6307 states and 21983 transitions. [2022-03-15 16:02:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:02:09,287 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:09,300 INFO L225 Difference]: With dead ends: 6307 [2022-03-15 16:02:09,300 INFO L226 Difference]: Without dead ends: 6162 [2022-03-15 16:02:09,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:02:09,301 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 430 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 3064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:09,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 1494 Invalid, 3064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:09,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-03-15 16:02:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5358. [2022-03-15 16:02:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5357 states have (on average 3.514280380810155) internal successors, (18826), 5357 states have internal predecessors, (18826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 18826 transitions. [2022-03-15 16:02:09,394 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 18826 transitions. Word has length 47 [2022-03-15 16:02:09,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:09,394 INFO L470 AbstractCegarLoop]: Abstraction has 5358 states and 18826 transitions. [2022-03-15 16:02:09,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 18826 transitions. [2022-03-15 16:02:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:09,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:09,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:09,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 16:02:09,404 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:09,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:09,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1669556517, now seen corresponding path program 21 times [2022-03-15 16:02:09,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:09,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409814312] [2022-03-15 16:02:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:09,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:09,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:09,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409814312] [2022-03-15 16:02:09,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409814312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:09,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:09,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:09,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121966685] [2022-03-15 16:02:09,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:09,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:09,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:09,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:09,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:09,742 INFO L87 Difference]: Start difference. First operand 5358 states and 18826 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:12,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:12,390 INFO L93 Difference]: Finished difference Result 9468 states and 33376 transitions. [2022-03-15 16:02:12,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-15 16:02:12,390 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:12,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:12,412 INFO L225 Difference]: With dead ends: 9468 [2022-03-15 16:02:12,412 INFO L226 Difference]: Without dead ends: 9331 [2022-03-15 16:02:12,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=402, Invalid=3504, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 16:02:12,414 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 720 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 4603 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 4603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:12,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 2270 Invalid, 4697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 4603 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:02:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9331 states. [2022-03-15 16:02:12,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9331 to 5392. [2022-03-15 16:02:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5391 states have (on average 3.5086254869226488) internal successors, (18915), 5391 states have internal predecessors, (18915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:12,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 18915 transitions. [2022-03-15 16:02:12,527 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 18915 transitions. Word has length 47 [2022-03-15 16:02:12,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:12,527 INFO L470 AbstractCegarLoop]: Abstraction has 5392 states and 18915 transitions. [2022-03-15 16:02:12,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 18915 transitions. [2022-03-15 16:02:12,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:12,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:12,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:12,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 16:02:12,536 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:12,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:12,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1774758871, now seen corresponding path program 22 times [2022-03-15 16:02:12,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:12,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778453398] [2022-03-15 16:02:12,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:12,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:12,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:12,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778453398] [2022-03-15 16:02:12,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778453398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:12,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:12,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:12,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448055472] [2022-03-15 16:02:12,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:12,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:12,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:12,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:12,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:12,810 INFO L87 Difference]: Start difference. First operand 5392 states and 18915 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:15,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:15,693 INFO L93 Difference]: Finished difference Result 10103 states and 35934 transitions. [2022-03-15 16:02:15,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-15 16:02:15,693 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:15,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:15,717 INFO L225 Difference]: With dead ends: 10103 [2022-03-15 16:02:15,717 INFO L226 Difference]: Without dead ends: 9996 [2022-03-15 16:02:15,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=433, Invalid=4259, Unknown=0, NotChecked=0, Total=4692 [2022-03-15 16:02:15,719 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 745 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 5008 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 5097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 5008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:15,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [745 Valid, 2596 Invalid, 5097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 5008 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:02:15,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9996 states. [2022-03-15 16:02:15,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9996 to 5376. [2022-03-15 16:02:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 5375 states have (on average 3.5108837209302326) internal successors, (18871), 5375 states have internal predecessors, (18871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 18871 transitions. [2022-03-15 16:02:15,866 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 18871 transitions. Word has length 47 [2022-03-15 16:02:15,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:15,866 INFO L470 AbstractCegarLoop]: Abstraction has 5376 states and 18871 transitions. [2022-03-15 16:02:15,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:15,866 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 18871 transitions. [2022-03-15 16:02:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:15,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:15,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:15,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 16:02:15,876 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:15,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:15,877 INFO L85 PathProgramCache]: Analyzing trace with hash -839606979, now seen corresponding path program 23 times [2022-03-15 16:02:15,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:15,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346376368] [2022-03-15 16:02:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:15,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:16,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:16,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346376368] [2022-03-15 16:02:16,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346376368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:16,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:16,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:16,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306473155] [2022-03-15 16:02:16,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:16,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:16,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:16,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:16,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:16,142 INFO L87 Difference]: Start difference. First operand 5376 states and 18871 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:17,668 INFO L93 Difference]: Finished difference Result 6505 states and 22569 transitions. [2022-03-15 16:02:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 16:02:17,668 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:17,683 INFO L225 Difference]: With dead ends: 6505 [2022-03-15 16:02:17,683 INFO L226 Difference]: Without dead ends: 6384 [2022-03-15 16:02:17,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=1955, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:02:17,684 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 478 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:17,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 1448 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2957 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6384 states. [2022-03-15 16:02:17,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6384 to 5382. [2022-03-15 16:02:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 3.5093848727002417) internal successors, (18884), 5381 states have internal predecessors, (18884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:17,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 18884 transitions. [2022-03-15 16:02:17,781 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 18884 transitions. Word has length 47 [2022-03-15 16:02:17,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:17,782 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 18884 transitions. [2022-03-15 16:02:17,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 18884 transitions. [2022-03-15 16:02:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:17,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:17,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:17,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 16:02:17,791 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:17,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:17,791 INFO L85 PathProgramCache]: Analyzing trace with hash 731814457, now seen corresponding path program 24 times [2022-03-15 16:02:17,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:17,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882341875] [2022-03-15 16:02:17,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:17,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:18,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:18,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882341875] [2022-03-15 16:02:18,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882341875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:18,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:18,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:18,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245397622] [2022-03-15 16:02:18,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:18,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:18,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:18,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:18,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:18,066 INFO L87 Difference]: Start difference. First operand 5382 states and 18884 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:19,995 INFO L93 Difference]: Finished difference Result 6877 states and 23923 transitions. [2022-03-15 16:02:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 16:02:19,995 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:20,011 INFO L225 Difference]: With dead ends: 6877 [2022-03-15 16:02:20,011 INFO L226 Difference]: Without dead ends: 6633 [2022-03-15 16:02:20,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=2403, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 16:02:20,012 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 462 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 3668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:20,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 1730 Invalid, 3668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:02:20,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6633 states. [2022-03-15 16:02:20,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6633 to 5378. [2022-03-15 16:02:20,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 3.510135763436861) internal successors, (18874), 5377 states have internal predecessors, (18874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 18874 transitions. [2022-03-15 16:02:20,116 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 18874 transitions. Word has length 47 [2022-03-15 16:02:20,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:20,116 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 18874 transitions. [2022-03-15 16:02:20,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 18874 transitions. [2022-03-15 16:02:20,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:20,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:20,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:20,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 16:02:20,125 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:20,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:20,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1030706135, now seen corresponding path program 25 times [2022-03-15 16:02:20,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:20,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938600748] [2022-03-15 16:02:20,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:20,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:20,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:20,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938600748] [2022-03-15 16:02:20,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938600748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:20,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:20,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:02:20,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084396769] [2022-03-15 16:02:20,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:20,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:02:20,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:20,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:02:20,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:02:20,454 INFO L87 Difference]: Start difference. First operand 5378 states and 18874 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:21,751 INFO L93 Difference]: Finished difference Result 6370 states and 22134 transitions. [2022-03-15 16:02:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-15 16:02:21,751 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:21,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:21,765 INFO L225 Difference]: With dead ends: 6370 [2022-03-15 16:02:21,765 INFO L226 Difference]: Without dead ends: 6273 [2022-03-15 16:02:21,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1479, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:02:21,766 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 359 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:21,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 1321 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:21,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6273 states. [2022-03-15 16:02:21,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6273 to 5392. [2022-03-15 16:02:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5391 states have (on average 3.506028566128733) internal successors, (18901), 5391 states have internal predecessors, (18901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:21,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 18901 transitions. [2022-03-15 16:02:21,851 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 18901 transitions. Word has length 47 [2022-03-15 16:02:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:21,852 INFO L470 AbstractCegarLoop]: Abstraction has 5392 states and 18901 transitions. [2022-03-15 16:02:21,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:21,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 18901 transitions. [2022-03-15 16:02:21,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:21,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:21,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:21,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 16:02:21,860 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:21,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:21,861 INFO L85 PathProgramCache]: Analyzing trace with hash -694714375, now seen corresponding path program 26 times [2022-03-15 16:02:21,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:21,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534657921] [2022-03-15 16:02:21,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:21,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:22,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:22,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534657921] [2022-03-15 16:02:22,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534657921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:22,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:22,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:22,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684488262] [2022-03-15 16:02:22,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:22,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:22,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:22,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:22,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:22,132 INFO L87 Difference]: Start difference. First operand 5392 states and 18901 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:23,443 INFO L93 Difference]: Finished difference Result 6271 states and 21829 transitions. [2022-03-15 16:02:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-15 16:02:23,443 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:23,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:23,458 INFO L225 Difference]: With dead ends: 6271 [2022-03-15 16:02:23,458 INFO L226 Difference]: Without dead ends: 6154 [2022-03-15 16:02:23,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1558, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 16:02:23,459 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 356 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:23,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 1381 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2022-03-15 16:02:23,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 5366. [2022-03-15 16:02:23,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 3.5109040074557316) internal successors, (18836), 5365 states have internal predecessors, (18836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:23,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 18836 transitions. [2022-03-15 16:02:23,558 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 18836 transitions. Word has length 47 [2022-03-15 16:02:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:23,558 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 18836 transitions. [2022-03-15 16:02:23,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 18836 transitions. [2022-03-15 16:02:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:23,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:23,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:23,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 16:02:23,567 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:23,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:23,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1165544903, now seen corresponding path program 27 times [2022-03-15 16:02:23,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:23,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440637442] [2022-03-15 16:02:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:23,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:23,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:23,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:23,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440637442] [2022-03-15 16:02:23,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440637442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:23,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:23,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:23,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859755999] [2022-03-15 16:02:23,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:23,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:23,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:23,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:23,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:23,829 INFO L87 Difference]: Start difference. First operand 5366 states and 18836 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:25,311 INFO L93 Difference]: Finished difference Result 6663 states and 23172 transitions. [2022-03-15 16:02:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:02:25,311 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:25,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:25,327 INFO L225 Difference]: With dead ends: 6663 [2022-03-15 16:02:25,327 INFO L226 Difference]: Without dead ends: 6536 [2022-03-15 16:02:25,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:02:25,328 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 475 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:25,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 1370 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:25,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6536 states. [2022-03-15 16:02:25,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6536 to 5386. [2022-03-15 16:02:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 3.5086350974930363) internal successors, (18894), 5385 states have internal predecessors, (18894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 18894 transitions. [2022-03-15 16:02:25,447 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 18894 transitions. Word has length 47 [2022-03-15 16:02:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:25,447 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 18894 transitions. [2022-03-15 16:02:25,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 18894 transitions. [2022-03-15 16:02:25,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:25,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:25,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:25,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 16:02:25,456 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1778673789, now seen corresponding path program 28 times [2022-03-15 16:02:25,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:25,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323563379] [2022-03-15 16:02:25,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:25,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:25,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:25,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323563379] [2022-03-15 16:02:25,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323563379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:25,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:25,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:25,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234889572] [2022-03-15 16:02:25,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:25,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:25,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:25,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:25,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:25,742 INFO L87 Difference]: Start difference. First operand 5386 states and 18894 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:27,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:27,731 INFO L93 Difference]: Finished difference Result 8560 states and 30207 transitions. [2022-03-15 16:02:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 16:02:27,731 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:27,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:27,752 INFO L225 Difference]: With dead ends: 8560 [2022-03-15 16:02:27,752 INFO L226 Difference]: Without dead ends: 8471 [2022-03-15 16:02:27,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=2475, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 16:02:27,753 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 659 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 3715 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:27,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [659 Valid, 1862 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3715 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:02:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8471 states. [2022-03-15 16:02:27,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8471 to 5410. [2022-03-15 16:02:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 3.5067480125716397) internal successors, (18968), 5409 states have internal predecessors, (18968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:27,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 18968 transitions. [2022-03-15 16:02:27,859 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 18968 transitions. Word has length 47 [2022-03-15 16:02:27,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:27,860 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 18968 transitions. [2022-03-15 16:02:27,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:27,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 18968 transitions. [2022-03-15 16:02:27,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:27,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:27,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:27,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 16:02:27,868 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:27,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash 928021881, now seen corresponding path program 29 times [2022-03-15 16:02:27,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:27,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930175045] [2022-03-15 16:02:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:28,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:28,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930175045] [2022-03-15 16:02:28,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930175045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:28,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:28,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:28,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281362032] [2022-03-15 16:02:28,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:28,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:28,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:28,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:28,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:28,127 INFO L87 Difference]: Start difference. First operand 5410 states and 18968 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:30,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:30,568 INFO L93 Difference]: Finished difference Result 9269 states and 32989 transitions. [2022-03-15 16:02:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-15 16:02:30,569 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:30,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:30,600 INFO L225 Difference]: With dead ends: 9269 [2022-03-15 16:02:30,600 INFO L226 Difference]: Without dead ends: 9166 [2022-03-15 16:02:30,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1000 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=357, Invalid=3549, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 16:02:30,601 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 700 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 4247 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 4323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 4247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:30,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 2156 Invalid, 4323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 4247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:02:30,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9166 states. [2022-03-15 16:02:30,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9166 to 5390. [2022-03-15 16:02:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 3.5101131935424013) internal successors, (18916), 5389 states have internal predecessors, (18916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:30,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 18916 transitions. [2022-03-15 16:02:30,772 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 18916 transitions. Word has length 47 [2022-03-15 16:02:30,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:30,772 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 18916 transitions. [2022-03-15 16:02:30,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:30,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 18916 transitions. [2022-03-15 16:02:30,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:30,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:30,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:30,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 16:02:30,782 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:30,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:30,782 INFO L85 PathProgramCache]: Analyzing trace with hash 376378455, now seen corresponding path program 30 times [2022-03-15 16:02:30,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:30,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004366651] [2022-03-15 16:02:30,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:30,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:31,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:31,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004366651] [2022-03-15 16:02:31,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004366651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:31,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:31,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:31,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560241568] [2022-03-15 16:02:31,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:31,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:31,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:31,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:31,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:31,057 INFO L87 Difference]: Start difference. First operand 5390 states and 18916 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:32,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:32,419 INFO L93 Difference]: Finished difference Result 6541 states and 22685 transitions. [2022-03-15 16:02:32,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:02:32,419 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:32,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:32,441 INFO L225 Difference]: With dead ends: 6541 [2022-03-15 16:02:32,441 INFO L226 Difference]: Without dead ends: 6414 [2022-03-15 16:02:32,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1561, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 16:02:32,442 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 436 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 3066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:32,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 1433 Invalid, 3066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3039 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:32,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2022-03-15 16:02:32,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 5402. [2022-03-15 16:02:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 3.507868913164229) internal successors, (18946), 5401 states have internal predecessors, (18946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 18946 transitions. [2022-03-15 16:02:32,542 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 18946 transitions. Word has length 47 [2022-03-15 16:02:32,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:32,542 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 18946 transitions. [2022-03-15 16:02:32,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:32,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 18946 transitions. [2022-03-15 16:02:32,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:32,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:32,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:32,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 16:02:32,551 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:32,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:32,551 INFO L85 PathProgramCache]: Analyzing trace with hash -2091217581, now seen corresponding path program 31 times [2022-03-15 16:02:32,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:32,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846155314] [2022-03-15 16:02:32,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:32,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:32,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:32,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846155314] [2022-03-15 16:02:32,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846155314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:32,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:32,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:32,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216628126] [2022-03-15 16:02:32,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:32,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:32,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:32,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:32,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:32,804 INFO L87 Difference]: Start difference. First operand 5402 states and 18946 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:34,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:34,274 INFO L93 Difference]: Finished difference Result 6630 states and 22927 transitions. [2022-03-15 16:02:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 16:02:34,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:34,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:34,294 INFO L225 Difference]: With dead ends: 6630 [2022-03-15 16:02:34,294 INFO L226 Difference]: Without dead ends: 6533 [2022-03-15 16:02:34,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=1880, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 16:02:34,295 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 499 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:34,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 1500 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:34,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6533 states. [2022-03-15 16:02:34,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6533 to 5408. [2022-03-15 16:02:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 3.506750508599963) internal successors, (18961), 5407 states have internal predecessors, (18961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 18961 transitions. [2022-03-15 16:02:34,403 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 18961 transitions. Word has length 47 [2022-03-15 16:02:34,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:34,403 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 18961 transitions. [2022-03-15 16:02:34,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:34,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 18961 transitions. [2022-03-15 16:02:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:34,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:34,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:34,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 16:02:34,413 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:34,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2088543755, now seen corresponding path program 32 times [2022-03-15 16:02:34,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:34,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126497391] [2022-03-15 16:02:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:34,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:34,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:34,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:34,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126497391] [2022-03-15 16:02:34,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126497391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:34,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:34,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:34,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79312826] [2022-03-15 16:02:34,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:34,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:34,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:34,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:34,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:34,681 INFO L87 Difference]: Start difference. First operand 5408 states and 18961 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:36,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:36,045 INFO L93 Difference]: Finished difference Result 6511 states and 22582 transitions. [2022-03-15 16:02:36,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:02:36,045 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:36,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:36,061 INFO L225 Difference]: With dead ends: 6511 [2022-03-15 16:02:36,061 INFO L226 Difference]: Without dead ends: 6402 [2022-03-15 16:02:36,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=171, Invalid=1635, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:02:36,061 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 443 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 2836 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:36,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1325 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2836 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:36,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6402 states. [2022-03-15 16:02:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6402 to 5390. [2022-03-15 16:02:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 3.5093709408053444) internal successors, (18912), 5389 states have internal predecessors, (18912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 18912 transitions. [2022-03-15 16:02:36,162 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 18912 transitions. Word has length 47 [2022-03-15 16:02:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:36,162 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 18912 transitions. [2022-03-15 16:02:36,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 18912 transitions. [2022-03-15 16:02:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:36,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:36,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:36,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 16:02:36,171 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:36,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash 897951869, now seen corresponding path program 33 times [2022-03-15 16:02:36,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:36,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190273938] [2022-03-15 16:02:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:36,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:36,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190273938] [2022-03-15 16:02:36,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190273938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:36,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:36,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:36,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713378753] [2022-03-15 16:02:36,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:36,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:36,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:36,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:36,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:36,437 INFO L87 Difference]: Start difference. First operand 5390 states and 18912 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:38,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:38,027 INFO L93 Difference]: Finished difference Result 6620 states and 22930 transitions. [2022-03-15 16:02:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-15 16:02:38,028 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:38,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:38,042 INFO L225 Difference]: With dead ends: 6620 [2022-03-15 16:02:38,043 INFO L226 Difference]: Without dead ends: 6499 [2022-03-15 16:02:38,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2137, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 16:02:38,045 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 501 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 3216 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 3268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:38,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 1519 Invalid, 3268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3216 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:38,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2022-03-15 16:02:38,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5396. [2022-03-15 16:02:38,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5396 states, 5395 states have (on average 3.5078776645041705) internal successors, (18925), 5395 states have internal predecessors, (18925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:38,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 18925 transitions. [2022-03-15 16:02:38,126 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 18925 transitions. Word has length 47 [2022-03-15 16:02:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:38,126 INFO L470 AbstractCegarLoop]: Abstraction has 5396 states and 18925 transitions. [2022-03-15 16:02:38,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 18925 transitions. [2022-03-15 16:02:38,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:38,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:38,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:38,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 16:02:38,134 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:38,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1825593991, now seen corresponding path program 34 times [2022-03-15 16:02:38,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:38,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482283540] [2022-03-15 16:02:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:38,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:38,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:38,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:38,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482283540] [2022-03-15 16:02:38,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482283540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:38,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:38,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:38,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073126190] [2022-03-15 16:02:38,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:38,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:38,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:38,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:38,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:38,408 INFO L87 Difference]: Start difference. First operand 5396 states and 18925 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:40,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:40,508 INFO L93 Difference]: Finished difference Result 7773 states and 27053 transitions. [2022-03-15 16:02:40,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 16:02:40,508 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:40,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:40,525 INFO L225 Difference]: With dead ends: 7773 [2022-03-15 16:02:40,525 INFO L226 Difference]: Without dead ends: 7678 [2022-03-15 16:02:40,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=260, Invalid=2602, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 16:02:40,526 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 585 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 3812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:40,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [585 Valid, 1812 Invalid, 3812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3763 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 16:02:40,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2022-03-15 16:02:40,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 5386. [2022-03-15 16:02:40,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 3.5093779015784587) internal successors, (18898), 5385 states have internal predecessors, (18898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 18898 transitions. [2022-03-15 16:02:40,620 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 18898 transitions. Word has length 47 [2022-03-15 16:02:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:40,620 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 18898 transitions. [2022-03-15 16:02:40,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:40,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 18898 transitions. [2022-03-15 16:02:40,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:40,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:40,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:40,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 16:02:40,629 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:40,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:40,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1526702313, now seen corresponding path program 35 times [2022-03-15 16:02:40,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:40,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297042020] [2022-03-15 16:02:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:40,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:40,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:40,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:40,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297042020] [2022-03-15 16:02:40,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297042020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:40,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:40,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:40,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934046737] [2022-03-15 16:02:40,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:40,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:40,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:40,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:40,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:40,887 INFO L87 Difference]: Start difference. First operand 5386 states and 18898 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:42,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:42,383 INFO L93 Difference]: Finished difference Result 6616 states and 22882 transitions. [2022-03-15 16:02:42,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:02:42,384 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:42,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:42,397 INFO L225 Difference]: With dead ends: 6616 [2022-03-15 16:02:42,397 INFO L226 Difference]: Without dead ends: 6519 [2022-03-15 16:02:42,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:02:42,398 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 499 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:42,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 1463 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:42,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6519 states. [2022-03-15 16:02:42,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6519 to 5394. [2022-03-15 16:02:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5394 states, 5393 states have (on average 3.5075097348414612) internal successors, (18916), 5393 states have internal predecessors, (18916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:42,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 18916 transitions. [2022-03-15 16:02:42,476 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 18916 transitions. Word has length 47 [2022-03-15 16:02:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:42,476 INFO L470 AbstractCegarLoop]: Abstraction has 5394 states and 18916 transitions. [2022-03-15 16:02:42,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 18916 transitions. [2022-03-15 16:02:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:42,485 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:42,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:42,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 16:02:42,485 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:42,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:42,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1042844473, now seen corresponding path program 36 times [2022-03-15 16:02:42,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:42,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712203977] [2022-03-15 16:02:42,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:42,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:42,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:42,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712203977] [2022-03-15 16:02:42,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712203977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:42,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:42,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:42,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775972615] [2022-03-15 16:02:42,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:42,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:42,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:42,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:42,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:42,754 INFO L87 Difference]: Start difference. First operand 5394 states and 18916 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:44,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:44,191 INFO L93 Difference]: Finished difference Result 6497 states and 22537 transitions. [2022-03-15 16:02:44,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 16:02:44,191 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:44,206 INFO L225 Difference]: With dead ends: 6497 [2022-03-15 16:02:44,206 INFO L226 Difference]: Without dead ends: 6394 [2022-03-15 16:02:44,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=1709, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:02:44,207 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 424 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:44,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1381 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:44,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6394 states. [2022-03-15 16:02:44,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6394 to 5382. [2022-03-15 16:02:44,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 3.510128228953726) internal successors, (18888), 5381 states have internal predecessors, (18888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 18888 transitions. [2022-03-15 16:02:44,298 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 18888 transitions. Word has length 47 [2022-03-15 16:02:44,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:44,298 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 18888 transitions. [2022-03-15 16:02:44,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 18888 transitions. [2022-03-15 16:02:44,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:44,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:44,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:44,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 16:02:44,307 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:44,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:44,307 INFO L85 PathProgramCache]: Analyzing trace with hash -539224437, now seen corresponding path program 37 times [2022-03-15 16:02:44,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:44,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654441616] [2022-03-15 16:02:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:44,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:44,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:44,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654441616] [2022-03-15 16:02:44,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654441616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:44,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:44,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:44,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051257234] [2022-03-15 16:02:44,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:44,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:44,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:44,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:44,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:44,586 INFO L87 Difference]: Start difference. First operand 5382 states and 18888 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:45,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:45,817 INFO L93 Difference]: Finished difference Result 6332 states and 22041 transitions. [2022-03-15 16:02:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:02:45,818 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:45,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:45,832 INFO L225 Difference]: With dead ends: 6332 [2022-03-15 16:02:45,832 INFO L226 Difference]: Without dead ends: 6205 [2022-03-15 16:02:45,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=149, Invalid=1411, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:02:45,833 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 378 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:45,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 1315 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6205 states. [2022-03-15 16:02:45,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6205 to 5418. [2022-03-15 16:02:45,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 3.5078456710356285) internal successors, (19002), 5417 states have internal predecessors, (19002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 19002 transitions. [2022-03-15 16:02:45,925 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 19002 transitions. Word has length 47 [2022-03-15 16:02:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:45,925 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 19002 transitions. [2022-03-15 16:02:45,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:45,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 19002 transitions. [2022-03-15 16:02:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:45,934 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:45,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:45,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 16:02:45,935 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:45,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:45,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1288146823, now seen corresponding path program 38 times [2022-03-15 16:02:45,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:45,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148577606] [2022-03-15 16:02:45,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:45,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:46,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:46,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148577606] [2022-03-15 16:02:46,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148577606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:46,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:46,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:46,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550357917] [2022-03-15 16:02:46,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:46,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:46,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:46,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:46,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:46,197 INFO L87 Difference]: Start difference. First operand 5418 states and 19002 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:47,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:47,589 INFO L93 Difference]: Finished difference Result 6451 states and 22378 transitions. [2022-03-15 16:02:47,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:02:47,590 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:47,605 INFO L225 Difference]: With dead ends: 6451 [2022-03-15 16:02:47,605 INFO L226 Difference]: Without dead ends: 6354 [2022-03-15 16:02:47,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=1638, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:02:47,606 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 438 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 3031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:47,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1468 Invalid, 3031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:47,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6354 states. [2022-03-15 16:02:47,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6354 to 5424. [2022-03-15 16:02:47,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 3.5067305919232896) internal successors, (19017), 5423 states have internal predecessors, (19017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:47,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 19017 transitions. [2022-03-15 16:02:47,702 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 19017 transitions. Word has length 47 [2022-03-15 16:02:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:47,702 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 19017 transitions. [2022-03-15 16:02:47,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:47,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 19017 transitions. [2022-03-15 16:02:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:47,711 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:47,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:47,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 16:02:47,711 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:47,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:47,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1290820649, now seen corresponding path program 39 times [2022-03-15 16:02:47,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:47,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610011280] [2022-03-15 16:02:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:47,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:47,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:47,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610011280] [2022-03-15 16:02:47,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610011280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:47,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:47,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:47,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116823762] [2022-03-15 16:02:47,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:47,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:47,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:47,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:48,000 INFO L87 Difference]: Start difference. First operand 5424 states and 19017 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:49,312 INFO L93 Difference]: Finished difference Result 6302 states and 21938 transitions. [2022-03-15 16:02:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 16:02:49,312 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:49,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:49,326 INFO L225 Difference]: With dead ends: 6302 [2022-03-15 16:02:49,326 INFO L226 Difference]: Without dead ends: 6193 [2022-03-15 16:02:49,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1407, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:02:49,327 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 383 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:49,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1316 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:49,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-03-15 16:02:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5406. [2022-03-15 16:02:49,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 3.50786308973173) internal successors, (18960), 5405 states have internal predecessors, (18960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 18960 transitions. [2022-03-15 16:02:49,430 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 18960 transitions. Word has length 47 [2022-03-15 16:02:49,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:49,430 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 18960 transitions. [2022-03-15 16:02:49,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 18960 transitions. [2022-03-15 16:02:49,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:49,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:49,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:49,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 16:02:49,439 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:49,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:49,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1390506559, now seen corresponding path program 40 times [2022-03-15 16:02:49,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:49,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958460391] [2022-03-15 16:02:49,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:49,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:49,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:49,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958460391] [2022-03-15 16:02:49,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958460391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:49,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:49,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:02:49,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167451620] [2022-03-15 16:02:49,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:49,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:02:49,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:49,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:02:49,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:02:49,695 INFO L87 Difference]: Start difference. First operand 5406 states and 18960 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:51,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:51,100 INFO L93 Difference]: Finished difference Result 6337 states and 22094 transitions. [2022-03-15 16:02:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 16:02:51,101 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:51,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:51,119 INFO L225 Difference]: With dead ends: 6337 [2022-03-15 16:02:51,120 INFO L226 Difference]: Without dead ends: 6192 [2022-03-15 16:02:51,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=1478, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:02:51,120 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 357 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2662 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:51,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 1288 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2662 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:51,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6192 states. [2022-03-15 16:02:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6192 to 5418. [2022-03-15 16:02:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 3.505630422743216) internal successors, (18990), 5417 states have internal predecessors, (18990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 18990 transitions. [2022-03-15 16:02:51,226 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 18990 transitions. Word has length 47 [2022-03-15 16:02:51,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:51,226 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 18990 transitions. [2022-03-15 16:02:51,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:51,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 18990 transitions. [2022-03-15 16:02:51,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:51,236 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:51,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:51,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 16:02:51,236 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:51,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:51,236 INFO L85 PathProgramCache]: Analyzing trace with hash 2108036509, now seen corresponding path program 41 times [2022-03-15 16:02:51,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:51,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101327842] [2022-03-15 16:02:51,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:51,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:51,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:51,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101327842] [2022-03-15 16:02:51,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101327842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:51,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:51,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:51,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107118342] [2022-03-15 16:02:51,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:51,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:51,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:51,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:51,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:51,508 INFO L87 Difference]: Start difference. First operand 5418 states and 18990 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:53,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:53,084 INFO L93 Difference]: Finished difference Result 6358 states and 22098 transitions. [2022-03-15 16:02:53,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:02:53,085 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:53,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:53,100 INFO L225 Difference]: With dead ends: 6358 [2022-03-15 16:02:53,100 INFO L226 Difference]: Without dead ends: 6261 [2022-03-15 16:02:53,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=1634, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:02:53,101 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 398 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 3070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:53,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1493 Invalid, 3070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 16:02:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6261 states. [2022-03-15 16:02:53,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6261 to 5424. [2022-03-15 16:02:53,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 3.5045177945786463) internal successors, (19005), 5423 states have internal predecessors, (19005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 19005 transitions. [2022-03-15 16:02:53,202 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 19005 transitions. Word has length 47 [2022-03-15 16:02:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:53,202 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 19005 transitions. [2022-03-15 16:02:53,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:53,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 19005 transitions. [2022-03-15 16:02:53,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:53,211 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:53,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:53,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 16:02:53,211 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:53,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:53,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2110710335, now seen corresponding path program 42 times [2022-03-15 16:02:53,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:53,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161513783] [2022-03-15 16:02:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:53,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:53,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:53,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:53,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161513783] [2022-03-15 16:02:53,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161513783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:53,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:53,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:53,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081981148] [2022-03-15 16:02:53,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:53,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:53,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:53,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:53,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:53,480 INFO L87 Difference]: Start difference. First operand 5424 states and 19005 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:54,758 INFO L93 Difference]: Finished difference Result 6179 states and 21553 transitions. [2022-03-15 16:02:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:02:54,759 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:54,772 INFO L225 Difference]: With dead ends: 6179 [2022-03-15 16:02:54,772 INFO L226 Difference]: Without dead ends: 6046 [2022-03-15 16:02:54,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=1406, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:02:54,772 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 340 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:54,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1198 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:54,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2022-03-15 16:02:54,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 5382. [2022-03-15 16:02:54,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 3.5086415164467573) internal successors, (18880), 5381 states have internal predecessors, (18880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 18880 transitions. [2022-03-15 16:02:54,860 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 18880 transitions. Word has length 47 [2022-03-15 16:02:54,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:54,860 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 18880 transitions. [2022-03-15 16:02:54,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 18880 transitions. [2022-03-15 16:02:54,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:54,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:54,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:54,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 16:02:54,869 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:54,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:54,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1938513479, now seen corresponding path program 43 times [2022-03-15 16:02:54,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:54,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061087701] [2022-03-15 16:02:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:54,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:55,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:55,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:55,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061087701] [2022-03-15 16:02:55,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061087701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:55,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:55,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:55,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363255570] [2022-03-15 16:02:55,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:55,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:55,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:55,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:55,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:55,158 INFO L87 Difference]: Start difference. First operand 5382 states and 18880 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:56,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:56,633 INFO L93 Difference]: Finished difference Result 6474 states and 22562 transitions. [2022-03-15 16:02:56,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 16:02:56,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:56,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:56,647 INFO L225 Difference]: With dead ends: 6474 [2022-03-15 16:02:56,648 INFO L226 Difference]: Without dead ends: 6289 [2022-03-15 16:02:56,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2132, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 16:02:56,648 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 483 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 3027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:56,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 1464 Invalid, 3027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2981 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:02:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2022-03-15 16:02:56,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 5386. [2022-03-15 16:02:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 3.5078922934076138) internal successors, (18890), 5385 states have internal predecessors, (18890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 18890 transitions. [2022-03-15 16:02:56,735 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 18890 transitions. Word has length 47 [2022-03-15 16:02:56,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:56,736 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 18890 transitions. [2022-03-15 16:02:56,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:56,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 18890 transitions. [2022-03-15 16:02:56,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:56,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:56,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:56,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 16:02:56,745 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:56,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:56,745 INFO L85 PathProgramCache]: Analyzing trace with hash -2056005221, now seen corresponding path program 44 times [2022-03-15 16:02:56,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:56,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147993382] [2022-03-15 16:02:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:56,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:57,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:57,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147993382] [2022-03-15 16:02:57,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147993382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:57,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:57,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:57,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117505763] [2022-03-15 16:02:57,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:57,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:57,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:57,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:57,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:57,033 INFO L87 Difference]: Start difference. First operand 5386 states and 18890 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:02:58,589 INFO L93 Difference]: Finished difference Result 6566 states and 22765 transitions. [2022-03-15 16:02:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 16:02:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:02:58,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:02:58,604 INFO L225 Difference]: With dead ends: 6566 [2022-03-15 16:02:58,605 INFO L226 Difference]: Without dead ends: 6429 [2022-03-15 16:02:58,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 16:02:58,605 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 497 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 3017 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:02:58,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 1436 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3017 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:02:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6429 states. [2022-03-15 16:02:58,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6429 to 5392. [2022-03-15 16:02:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5391 states have (on average 3.5063995548135782) internal successors, (18903), 5391 states have internal predecessors, (18903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 18903 transitions. [2022-03-15 16:02:58,748 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 18903 transitions. Word has length 47 [2022-03-15 16:02:58,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:02:58,748 INFO L470 AbstractCegarLoop]: Abstraction has 5392 states and 18903 transitions. [2022-03-15 16:02:58,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:02:58,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 18903 transitions. [2022-03-15 16:02:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:02:58,758 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:02:58,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:02:58,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 16:02:58,758 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:02:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:02:58,759 INFO L85 PathProgramCache]: Analyzing trace with hash -484583785, now seen corresponding path program 45 times [2022-03-15 16:02:58,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:02:58,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772719019] [2022-03-15 16:02:58,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:02:58,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:02:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:02:59,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:02:59,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:02:59,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772719019] [2022-03-15 16:02:59,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772719019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:02:59,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:02:59,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:02:59,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413022087] [2022-03-15 16:02:59,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:02:59,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:02:59,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:02:59,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:02:59,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:02:59,046 INFO L87 Difference]: Start difference. First operand 5392 states and 18903 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:01,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:01,513 INFO L93 Difference]: Finished difference Result 8647 states and 30313 transitions. [2022-03-15 16:03:01,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-15 16:03:01,514 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:01,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:01,534 INFO L225 Difference]: With dead ends: 8647 [2022-03-15 16:03:01,534 INFO L226 Difference]: Without dead ends: 8552 [2022-03-15 16:03:01,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=334, Invalid=3572, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 16:03:01,541 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 627 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 4780 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 4860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:01,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 2407 Invalid, 4860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4780 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:03:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8552 states. [2022-03-15 16:03:01,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8552 to 5390. [2022-03-15 16:03:01,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 3.5078864353312302) internal successors, (18904), 5389 states have internal predecessors, (18904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 18904 transitions. [2022-03-15 16:03:01,651 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 18904 transitions. Word has length 47 [2022-03-15 16:03:01,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:01,651 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 18904 transitions. [2022-03-15 16:03:01,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 18904 transitions. [2022-03-15 16:03:01,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:01,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:01,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:01,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 16:03:01,660 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:01,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:01,660 INFO L85 PathProgramCache]: Analyzing trace with hash -185692107, now seen corresponding path program 46 times [2022-03-15 16:03:01,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:01,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554681053] [2022-03-15 16:03:01,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:01,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:01,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:01,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:01,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554681053] [2022-03-15 16:03:01,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554681053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:01,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:01,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:01,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110171869] [2022-03-15 16:03:01,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:01,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:01,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:01,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:01,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:01,926 INFO L87 Difference]: Start difference. First operand 5390 states and 18904 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:03,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:03,440 INFO L93 Difference]: Finished difference Result 6515 states and 22598 transitions. [2022-03-15 16:03:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 16:03:03,442 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:03,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:03,458 INFO L225 Difference]: With dead ends: 6515 [2022-03-15 16:03:03,459 INFO L226 Difference]: Without dead ends: 6418 [2022-03-15 16:03:03,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=209, Invalid=1953, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:03:03,459 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 461 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 3037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:03,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1456 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:03:03,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2022-03-15 16:03:03,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 5398. [2022-03-15 16:03:03,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5398 states, 5397 states have (on average 3.5060218639985177) internal successors, (18922), 5397 states have internal predecessors, (18922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5398 states to 5398 states and 18922 transitions. [2022-03-15 16:03:03,563 INFO L78 Accepts]: Start accepts. Automaton has 5398 states and 18922 transitions. Word has length 47 [2022-03-15 16:03:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:03,563 INFO L470 AbstractCegarLoop]: Abstraction has 5398 states and 18922 transitions. [2022-03-15 16:03:03,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5398 states and 18922 transitions. [2022-03-15 16:03:03,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:03,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:03,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:03,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 16:03:03,573 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1911112617, now seen corresponding path program 47 times [2022-03-15 16:03:03,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:03,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950518208] [2022-03-15 16:03:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:03,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:03,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:03,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950518208] [2022-03-15 16:03:03,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950518208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:03,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:03,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:03,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429321097] [2022-03-15 16:03:03,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:03,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:03,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:03,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:03,868 INFO L87 Difference]: Start difference. First operand 5398 states and 18922 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:05,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:05,146 INFO L93 Difference]: Finished difference Result 6336 states and 22053 transitions. [2022-03-15 16:03:05,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 16:03:05,146 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:05,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:05,162 INFO L225 Difference]: With dead ends: 6336 [2022-03-15 16:03:05,162 INFO L226 Difference]: Without dead ends: 6237 [2022-03-15 16:03:05,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=1626, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:03:05,163 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 394 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:05,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1203 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6237 states. [2022-03-15 16:03:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6237 to 5390. [2022-03-15 16:03:05,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 3.507515308962702) internal successors, (18902), 5389 states have internal predecessors, (18902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 18902 transitions. [2022-03-15 16:03:05,258 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 18902 transitions. Word has length 47 [2022-03-15 16:03:05,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:05,258 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 18902 transitions. [2022-03-15 16:03:05,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:05,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 18902 transitions. [2022-03-15 16:03:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:05,267 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:05,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:05,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 16:03:05,267 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:05,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:05,267 INFO L85 PathProgramCache]: Analyzing trace with hash -835368053, now seen corresponding path program 48 times [2022-03-15 16:03:05,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:05,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168900645] [2022-03-15 16:03:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:05,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:05,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:05,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:05,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168900645] [2022-03-15 16:03:05,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168900645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:05,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:05,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:05,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741353573] [2022-03-15 16:03:05,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:05,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:05,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:05,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:05,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:05,507 INFO L87 Difference]: Start difference. First operand 5390 states and 18902 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:06,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:06,796 INFO L93 Difference]: Finished difference Result 6321 states and 22036 transitions. [2022-03-15 16:03:06,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-15 16:03:06,796 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:06,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:06,810 INFO L225 Difference]: With dead ends: 6321 [2022-03-15 16:03:06,810 INFO L226 Difference]: Without dead ends: 6176 [2022-03-15 16:03:06,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=1474, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:03:06,811 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 356 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:06,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 1315 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2699 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2022-03-15 16:03:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 5402. [2022-03-15 16:03:06,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 3.505276800592483) internal successors, (18932), 5401 states have internal predecessors, (18932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:06,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 18932 transitions. [2022-03-15 16:03:06,899 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 18932 transitions. Word has length 47 [2022-03-15 16:03:06,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:06,899 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 18932 transitions. [2022-03-15 16:03:06,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 18932 transitions. [2022-03-15 16:03:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:06,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:06,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:06,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 16:03:06,908 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:06,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:06,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1516146537, now seen corresponding path program 49 times [2022-03-15 16:03:06,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:06,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530183623] [2022-03-15 16:03:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:06,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:07,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:07,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530183623] [2022-03-15 16:03:07,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530183623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:07,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:07,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:07,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257230811] [2022-03-15 16:03:07,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:07,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:07,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:07,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:07,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:07,197 INFO L87 Difference]: Start difference. First operand 5402 states and 18932 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:08,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:08,623 INFO L93 Difference]: Finished difference Result 6342 states and 22040 transitions. [2022-03-15 16:03:08,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:03:08,623 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:08,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:08,637 INFO L225 Difference]: With dead ends: 6342 [2022-03-15 16:03:08,638 INFO L226 Difference]: Without dead ends: 6245 [2022-03-15 16:03:08,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:03:08,638 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 402 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:08,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 1444 Invalid, 2948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6245 states. [2022-03-15 16:03:08,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6245 to 5408. [2022-03-15 16:03:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 3.5041612724246347) internal successors, (18947), 5407 states have internal predecessors, (18947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 18947 transitions. [2022-03-15 16:03:08,752 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 18947 transitions. Word has length 47 [2022-03-15 16:03:08,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:08,752 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 18947 transitions. [2022-03-15 16:03:08,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:08,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 18947 transitions. [2022-03-15 16:03:08,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:08,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:08,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:08,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 16:03:08,761 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash -209273973, now seen corresponding path program 50 times [2022-03-15 16:03:08,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:08,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480948854] [2022-03-15 16:03:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:08,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:09,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:09,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480948854] [2022-03-15 16:03:09,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480948854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:09,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:09,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:09,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700635260] [2022-03-15 16:03:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:09,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:09,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:09,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:09,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:09,013 INFO L87 Difference]: Start difference. First operand 5408 states and 18947 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:10,237 INFO L93 Difference]: Finished difference Result 6163 states and 21495 transitions. [2022-03-15 16:03:10,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 16:03:10,237 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:10,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:10,251 INFO L225 Difference]: With dead ends: 6163 [2022-03-15 16:03:10,251 INFO L226 Difference]: Without dead ends: 6042 [2022-03-15 16:03:10,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:03:10,252 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 327 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2577 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:10,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 1217 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2577 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:10,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2022-03-15 16:03:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 5378. [2022-03-15 16:03:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 3.5093918541937885) internal successors, (18870), 5377 states have internal predecessors, (18870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 18870 transitions. [2022-03-15 16:03:10,348 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 18870 transitions. Word has length 47 [2022-03-15 16:03:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:10,348 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 18870 transitions. [2022-03-15 16:03:10,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 18870 transitions. [2022-03-15 16:03:10,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:10,357 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:10,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:10,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 16:03:10,357 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:10,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:10,357 INFO L85 PathProgramCache]: Analyzing trace with hash -163058067, now seen corresponding path program 51 times [2022-03-15 16:03:10,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:10,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058415681] [2022-03-15 16:03:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:10,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:10,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:10,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:10,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058415681] [2022-03-15 16:03:10,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058415681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:10,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:10,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:03:10,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474397446] [2022-03-15 16:03:10,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:10,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:03:10,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:10,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:03:10,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:03:10,604 INFO L87 Difference]: Start difference. First operand 5378 states and 18870 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:11,744 INFO L93 Difference]: Finished difference Result 6353 states and 22148 transitions. [2022-03-15 16:03:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-15 16:03:11,744 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:11,759 INFO L225 Difference]: With dead ends: 6353 [2022-03-15 16:03:11,760 INFO L226 Difference]: Without dead ends: 6216 [2022-03-15 16:03:11,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 16:03:11,760 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 322 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:11,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 1261 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:11,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6216 states. [2022-03-15 16:03:11,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6216 to 5458. [2022-03-15 16:03:11,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 3.507421660252886) internal successors, (19140), 5457 states have internal predecessors, (19140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 19140 transitions. [2022-03-15 16:03:11,852 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 19140 transitions. Word has length 47 [2022-03-15 16:03:11,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:11,853 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 19140 transitions. [2022-03-15 16:03:11,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 19140 transitions. [2022-03-15 16:03:11,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:11,862 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:11,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:11,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 16:03:11,862 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:11,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:11,862 INFO L85 PathProgramCache]: Analyzing trace with hash -971998675, now seen corresponding path program 52 times [2022-03-15 16:03:11,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:11,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518307294] [2022-03-15 16:03:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:11,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:12,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:12,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518307294] [2022-03-15 16:03:12,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518307294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:12,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:12,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:12,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997728404] [2022-03-15 16:03:12,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:12,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:12,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:12,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:12,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:12,105 INFO L87 Difference]: Start difference. First operand 5458 states and 19140 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:13,416 INFO L93 Difference]: Finished difference Result 6337 states and 22092 transitions. [2022-03-15 16:03:13,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:03:13,417 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:13,432 INFO L225 Difference]: With dead ends: 6337 [2022-03-15 16:03:13,432 INFO L226 Difference]: Without dead ends: 6192 [2022-03-15 16:03:13,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1476, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:03:13,433 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 375 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:13,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1356 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:13,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6192 states. [2022-03-15 16:03:13,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6192 to 5458. [2022-03-15 16:03:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 3.503023639362287) internal successors, (19116), 5457 states have internal predecessors, (19116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 19116 transitions. [2022-03-15 16:03:13,543 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 19116 transitions. Word has length 47 [2022-03-15 16:03:13,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:13,543 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 19116 transitions. [2022-03-15 16:03:13,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 19116 transitions. [2022-03-15 16:03:13,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:13,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:13,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:13,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 16:03:13,554 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:13,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:13,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1245654035, now seen corresponding path program 53 times [2022-03-15 16:03:13,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:13,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350677739] [2022-03-15 16:03:13,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:13,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:13,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:13,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:13,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350677739] [2022-03-15 16:03:13,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350677739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:13,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:13,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:13,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25455372] [2022-03-15 16:03:13,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:13,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:13,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:13,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:13,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:13,793 INFO L87 Difference]: Start difference. First operand 5458 states and 19116 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:15,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:15,048 INFO L93 Difference]: Finished difference Result 6385 states and 22268 transitions. [2022-03-15 16:03:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:03:15,048 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:15,062 INFO L225 Difference]: With dead ends: 6385 [2022-03-15 16:03:15,062 INFO L226 Difference]: Without dead ends: 6136 [2022-03-15 16:03:15,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1476, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:03:15,063 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 373 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 2613 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:15,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1331 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2613 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:15,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2022-03-15 16:03:15,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 5394. [2022-03-15 16:03:15,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5394 states, 5393 states have (on average 3.506026330428333) internal successors, (18908), 5393 states have internal predecessors, (18908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 18908 transitions. [2022-03-15 16:03:15,153 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 18908 transitions. Word has length 47 [2022-03-15 16:03:15,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:15,153 INFO L470 AbstractCegarLoop]: Abstraction has 5394 states and 18908 transitions. [2022-03-15 16:03:15,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:15,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 18908 transitions. [2022-03-15 16:03:15,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:15,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:15,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:15,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 16:03:15,162 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:15,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash 489665227, now seen corresponding path program 54 times [2022-03-15 16:03:15,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:15,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15042695] [2022-03-15 16:03:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:15,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:15,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:15,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15042695] [2022-03-15 16:03:15,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15042695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:15,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:15,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:15,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572421017] [2022-03-15 16:03:15,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:15,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:15,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:15,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:15,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:15,411 INFO L87 Difference]: Start difference. First operand 5394 states and 18908 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:16,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:16,664 INFO L93 Difference]: Finished difference Result 6273 states and 21852 transitions. [2022-03-15 16:03:16,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:03:16,664 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:16,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:16,678 INFO L225 Difference]: With dead ends: 6273 [2022-03-15 16:03:16,678 INFO L226 Difference]: Without dead ends: 6136 [2022-03-15 16:03:16,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:03:16,679 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 367 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 2623 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:16,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1354 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2623 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:16,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2022-03-15 16:03:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 5412. [2022-03-15 16:03:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 3.50267972648309) internal successors, (18953), 5411 states have internal predecessors, (18953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:16,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 18953 transitions. [2022-03-15 16:03:16,767 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 18953 transitions. Word has length 47 [2022-03-15 16:03:16,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:16,768 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 18953 transitions. [2022-03-15 16:03:16,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:16,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 18953 transitions. [2022-03-15 16:03:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:16,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:16,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:16,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 16:03:16,776 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:16,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash -319275381, now seen corresponding path program 55 times [2022-03-15 16:03:16,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:16,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615949172] [2022-03-15 16:03:16,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:16,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:17,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:17,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615949172] [2022-03-15 16:03:17,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615949172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:17,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:17,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:17,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366686173] [2022-03-15 16:03:17,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:17,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:17,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:17,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:17,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:17,054 INFO L87 Difference]: Start difference. First operand 5412 states and 18953 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:18,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:18,451 INFO L93 Difference]: Finished difference Result 6257 states and 21784 transitions. [2022-03-15 16:03:18,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:03:18,452 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:18,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:18,465 INFO L225 Difference]: With dead ends: 6257 [2022-03-15 16:03:18,466 INFO L226 Difference]: Without dead ends: 6112 [2022-03-15 16:03:18,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=1632, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:03:18,466 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 424 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 2889 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 2929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:18,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1452 Invalid, 2929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2889 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2022-03-15 16:03:18,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 5412. [2022-03-15 16:03:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 3.50157087414526) internal successors, (18947), 5411 states have internal predecessors, (18947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:18,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 18947 transitions. [2022-03-15 16:03:18,558 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 18947 transitions. Word has length 47 [2022-03-15 16:03:18,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:18,558 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 18947 transitions. [2022-03-15 16:03:18,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:18,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 18947 transitions. [2022-03-15 16:03:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:18,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:18,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:18,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 16:03:18,567 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash 580620397, now seen corresponding path program 56 times [2022-03-15 16:03:18,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:18,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463819178] [2022-03-15 16:03:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:18,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:18,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:18,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463819178] [2022-03-15 16:03:18,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463819178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:18,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:18,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:18,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688562723] [2022-03-15 16:03:18,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:18,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:18,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:18,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:18,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:18,837 INFO L87 Difference]: Start difference. First operand 5412 states and 18947 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:21,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:21,453 INFO L93 Difference]: Finished difference Result 9782 states and 34633 transitions. [2022-03-15 16:03:21,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 16:03:21,454 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:21,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:21,477 INFO L225 Difference]: With dead ends: 9782 [2022-03-15 16:03:21,477 INFO L226 Difference]: Without dead ends: 9645 [2022-03-15 16:03:21,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=418, Invalid=3872, Unknown=0, NotChecked=0, Total=4290 [2022-03-15 16:03:21,478 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 752 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 4585 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 4691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:21,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2176 Invalid, 4691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4585 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 16:03:21,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2022-03-15 16:03:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 5502. [2022-03-15 16:03:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 3.498636611525177) internal successors, (19246), 5501 states have internal predecessors, (19246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:21,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 19246 transitions. [2022-03-15 16:03:21,601 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 19246 transitions. Word has length 47 [2022-03-15 16:03:21,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:21,601 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 19246 transitions. [2022-03-15 16:03:21,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:21,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 19246 transitions. [2022-03-15 16:03:21,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:21,610 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:21,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:21,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 16:03:21,610 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:21,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:21,611 INFO L85 PathProgramCache]: Analyzing trace with hash -270031511, now seen corresponding path program 57 times [2022-03-15 16:03:21,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:21,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405679157] [2022-03-15 16:03:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:21,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:21,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:21,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:21,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405679157] [2022-03-15 16:03:21,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405679157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:21,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:21,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:21,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513635230] [2022-03-15 16:03:21,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:21,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:21,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:21,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:21,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:21,861 INFO L87 Difference]: Start difference. First operand 5502 states and 19246 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:24,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:24,829 INFO L93 Difference]: Finished difference Result 10309 states and 36819 transitions. [2022-03-15 16:03:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-15 16:03:24,831 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:24,856 INFO L225 Difference]: With dead ends: 10309 [2022-03-15 16:03:24,856 INFO L226 Difference]: Without dead ends: 10202 [2022-03-15 16:03:24,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1392 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=441, Invalid=4529, Unknown=0, NotChecked=0, Total=4970 [2022-03-15 16:03:24,857 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 782 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 4958 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 5059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:24,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [782 Valid, 2478 Invalid, 5059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4958 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:03:24,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10202 states. [2022-03-15 16:03:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10202 to 5480. [2022-03-15 16:03:24,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5479 states have (on average 3.5019164081036687) internal successors, (19187), 5479 states have internal predecessors, (19187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 19187 transitions. [2022-03-15 16:03:24,989 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 19187 transitions. Word has length 47 [2022-03-15 16:03:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:24,989 INFO L470 AbstractCegarLoop]: Abstraction has 5480 states and 19187 transitions. [2022-03-15 16:03:24,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 19187 transitions. [2022-03-15 16:03:24,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:24,998 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:24,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:24,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 16:03:24,999 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:24,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1410569935, now seen corresponding path program 58 times [2022-03-15 16:03:24,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:24,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760118274] [2022-03-15 16:03:24,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:24,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:25,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:25,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760118274] [2022-03-15 16:03:25,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760118274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:25,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:25,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:25,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383848322] [2022-03-15 16:03:25,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:25,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:25,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:25,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:25,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:25,270 INFO L87 Difference]: Start difference. First operand 5480 states and 19187 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:26,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:26,766 INFO L93 Difference]: Finished difference Result 6505 states and 22565 transitions. [2022-03-15 16:03:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 16:03:26,767 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:26,781 INFO L225 Difference]: With dead ends: 6505 [2022-03-15 16:03:26,781 INFO L226 Difference]: Without dead ends: 6384 [2022-03-15 16:03:26,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1959, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:03:26,782 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 451 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 2987 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:26,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 1462 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2987 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:03:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6384 states. [2022-03-15 16:03:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6384 to 5486. [2022-03-15 16:03:26,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 5485 states have (on average 3.5004557885141296) internal successors, (19200), 5485 states have internal predecessors, (19200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 19200 transitions. [2022-03-15 16:03:26,873 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 19200 transitions. Word has length 47 [2022-03-15 16:03:26,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:26,873 INFO L470 AbstractCegarLoop]: Abstraction has 5486 states and 19200 transitions. [2022-03-15 16:03:26,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:26,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 19200 transitions. [2022-03-15 16:03:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:26,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:26,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:26,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 16:03:26,882 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:26,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:26,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1312975925, now seen corresponding path program 59 times [2022-03-15 16:03:26,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:26,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701297074] [2022-03-15 16:03:26,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:26,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:27,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:27,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701297074] [2022-03-15 16:03:27,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701297074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:27,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:27,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:27,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323946762] [2022-03-15 16:03:27,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:27,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:27,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:27,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:27,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:27,145 INFO L87 Difference]: Start difference. First operand 5486 states and 19200 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:29,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:29,171 INFO L93 Difference]: Finished difference Result 7233 states and 25257 transitions. [2022-03-15 16:03:29,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 16:03:29,171 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:29,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:29,187 INFO L225 Difference]: With dead ends: 7233 [2022-03-15 16:03:29,187 INFO L226 Difference]: Without dead ends: 6989 [2022-03-15 16:03:29,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=256, Invalid=2606, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 16:03:29,188 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 505 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 3938 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 3991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 3938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:29,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1885 Invalid, 3991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3938 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 16:03:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6989 states. [2022-03-15 16:03:29,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6989 to 5554. [2022-03-15 16:03:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5554 states, 5553 states have (on average 3.4979290473617866) internal successors, (19424), 5553 states have internal predecessors, (19424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5554 states to 5554 states and 19424 transitions. [2022-03-15 16:03:29,284 INFO L78 Accepts]: Start accepts. Automaton has 5554 states and 19424 transitions. Word has length 47 [2022-03-15 16:03:29,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:29,284 INFO L470 AbstractCegarLoop]: Abstraction has 5554 states and 19424 transitions. [2022-03-15 16:03:29,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5554 states and 19424 transitions. [2022-03-15 16:03:29,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:29,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:29,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:29,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 16:03:29,293 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:29,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:29,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1014084247, now seen corresponding path program 60 times [2022-03-15 16:03:29,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:29,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836634372] [2022-03-15 16:03:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:29,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:29,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:29,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836634372] [2022-03-15 16:03:29,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836634372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:29,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:29,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:29,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089783885] [2022-03-15 16:03:29,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:29,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:29,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:29,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:29,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:29,541 INFO L87 Difference]: Start difference. First operand 5554 states and 19424 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:30,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:30,939 INFO L93 Difference]: Finished difference Result 6522 states and 22604 transitions. [2022-03-15 16:03:30,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:03:30,939 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:30,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:30,957 INFO L225 Difference]: With dead ends: 6522 [2022-03-15 16:03:30,957 INFO L226 Difference]: Without dead ends: 6425 [2022-03-15 16:03:30,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=1715, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:03:30,958 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 379 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:30,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1463 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:30,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6425 states. [2022-03-15 16:03:31,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6425 to 5568. [2022-03-15 16:03:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5567 states have (on average 3.493982396263697) internal successors, (19451), 5567 states have internal predecessors, (19451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:31,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 19451 transitions. [2022-03-15 16:03:31,059 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 19451 transitions. Word has length 47 [2022-03-15 16:03:31,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:31,059 INFO L470 AbstractCegarLoop]: Abstraction has 5568 states and 19451 transitions. [2022-03-15 16:03:31,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:31,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 19451 transitions. [2022-03-15 16:03:31,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:31,068 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:31,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:31,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 16:03:31,068 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:31,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1555462539, now seen corresponding path program 61 times [2022-03-15 16:03:31,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:31,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575130536] [2022-03-15 16:03:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:31,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:31,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:31,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575130536] [2022-03-15 16:03:31,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575130536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:31,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:31,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:31,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823787985] [2022-03-15 16:03:31,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:31,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:31,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:31,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:31,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:31,313 INFO L87 Difference]: Start difference. First operand 5568 states and 19451 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:32,634 INFO L93 Difference]: Finished difference Result 6343 states and 22059 transitions. [2022-03-15 16:03:32,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:03:32,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:32,648 INFO L225 Difference]: With dead ends: 6343 [2022-03-15 16:03:32,648 INFO L226 Difference]: Without dead ends: 6238 [2022-03-15 16:03:32,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=1560, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 16:03:32,648 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 335 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 2827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:32,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1390 Invalid, 2827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6238 states. [2022-03-15 16:03:32,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6238 to 5554. [2022-03-15 16:03:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5554 states, 5553 states have (on average 3.4968485503331532) internal successors, (19418), 5553 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:32,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5554 states to 5554 states and 19418 transitions. [2022-03-15 16:03:32,756 INFO L78 Accepts]: Start accepts. Automaton has 5554 states and 19418 transitions. Word has length 47 [2022-03-15 16:03:32,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:32,756 INFO L470 AbstractCegarLoop]: Abstraction has 5554 states and 19418 transitions. [2022-03-15 16:03:32,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5554 states and 19418 transitions. [2022-03-15 16:03:32,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:32,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:32,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:32,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 16:03:32,765 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:32,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:32,765 INFO L85 PathProgramCache]: Analyzing trace with hash 800866843, now seen corresponding path program 62 times [2022-03-15 16:03:32,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:32,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306627815] [2022-03-15 16:03:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:32,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:33,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:33,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306627815] [2022-03-15 16:03:33,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306627815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:33,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:33,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:33,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022534562] [2022-03-15 16:03:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:33,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:33,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:33,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:33,033 INFO L87 Difference]: Start difference. First operand 5554 states and 19418 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:34,457 INFO L93 Difference]: Finished difference Result 6616 states and 22995 transitions. [2022-03-15 16:03:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 16:03:34,458 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:34,472 INFO L225 Difference]: With dead ends: 6616 [2022-03-15 16:03:34,472 INFO L226 Difference]: Without dead ends: 6431 [2022-03-15 16:03:34,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 16:03:34,473 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 455 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 2901 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:34,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 1447 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2901 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6431 states. [2022-03-15 16:03:34,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6431 to 5558. [2022-03-15 16:03:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5558 states, 5557 states have (on average 3.496131005938456) internal successors, (19428), 5557 states have internal predecessors, (19428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 19428 transitions. [2022-03-15 16:03:34,572 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 19428 transitions. Word has length 47 [2022-03-15 16:03:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:34,572 INFO L470 AbstractCegarLoop]: Abstraction has 5558 states and 19428 transitions. [2022-03-15 16:03:34,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 19428 transitions. [2022-03-15 16:03:34,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:34,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:34,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:34,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 16:03:34,581 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:34,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:34,581 INFO L85 PathProgramCache]: Analyzing trace with hash 683375101, now seen corresponding path program 63 times [2022-03-15 16:03:34,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:34,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681634973] [2022-03-15 16:03:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:34,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:34,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681634973] [2022-03-15 16:03:34,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681634973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:34,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:34,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:34,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993363228] [2022-03-15 16:03:34,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:34,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:34,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:34,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:34,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:34,826 INFO L87 Difference]: Start difference. First operand 5558 states and 19428 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:36,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:36,242 INFO L93 Difference]: Finished difference Result 6708 states and 23198 transitions. [2022-03-15 16:03:36,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 16:03:36,242 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:36,257 INFO L225 Difference]: With dead ends: 6708 [2022-03-15 16:03:36,257 INFO L226 Difference]: Without dead ends: 6571 [2022-03-15 16:03:36,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=1866, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 16:03:36,258 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 471 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:36,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1346 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6571 states. [2022-03-15 16:03:36,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6571 to 5564. [2022-03-15 16:03:36,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 3.494697105878123) internal successors, (19441), 5563 states have internal predecessors, (19441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:36,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 19441 transitions. [2022-03-15 16:03:36,349 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 19441 transitions. Word has length 47 [2022-03-15 16:03:36,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:36,349 INFO L470 AbstractCegarLoop]: Abstraction has 5564 states and 19441 transitions. [2022-03-15 16:03:36,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:36,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 19441 transitions. [2022-03-15 16:03:36,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:36,357 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:36,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:36,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 16:03:36,358 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:36,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash -2040170759, now seen corresponding path program 64 times [2022-03-15 16:03:36,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:36,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619236275] [2022-03-15 16:03:36,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:36,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:36,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:36,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619236275] [2022-03-15 16:03:36,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619236275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:36,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:36,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:36,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587536316] [2022-03-15 16:03:36,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:36,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:36,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:36,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:36,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:36,632 INFO L87 Difference]: Start difference. First operand 5564 states and 19441 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:39,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:39,292 INFO L93 Difference]: Finished difference Result 9630 states and 33745 transitions. [2022-03-15 16:03:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-15 16:03:39,293 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:39,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:39,314 INFO L225 Difference]: With dead ends: 9630 [2022-03-15 16:03:39,314 INFO L226 Difference]: Without dead ends: 9390 [2022-03-15 16:03:39,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=339, Invalid=3567, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 16:03:39,315 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 667 mSDsluCounter, 4449 mSDsCounter, 0 mSdLazyCounter, 5168 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 5248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 5168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:39,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 2827 Invalid, 5248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 5168 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:03:39,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9390 states. [2022-03-15 16:03:39,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9390 to 5588. [2022-03-15 16:03:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5588 states, 5587 states have (on average 3.491856094505101) internal successors, (19509), 5587 states have internal predecessors, (19509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5588 states to 5588 states and 19509 transitions. [2022-03-15 16:03:39,430 INFO L78 Accepts]: Start accepts. Automaton has 5588 states and 19509 transitions. Word has length 47 [2022-03-15 16:03:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:39,430 INFO L470 AbstractCegarLoop]: Abstraction has 5588 states and 19509 transitions. [2022-03-15 16:03:39,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5588 states and 19509 transitions. [2022-03-15 16:03:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:39,439 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:39,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:39,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 16:03:39,439 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:39,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:39,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1741279081, now seen corresponding path program 65 times [2022-03-15 16:03:39,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:39,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892094786] [2022-03-15 16:03:39,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:39,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:39,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:39,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892094786] [2022-03-15 16:03:39,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892094786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:39,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:39,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:39,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921174129] [2022-03-15 16:03:39,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:39,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:39,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:39,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:39,701 INFO L87 Difference]: Start difference. First operand 5588 states and 19509 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:41,088 INFO L93 Difference]: Finished difference Result 6683 states and 23098 transitions. [2022-03-15 16:03:41,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 16:03:41,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:41,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:41,103 INFO L225 Difference]: With dead ends: 6683 [2022-03-15 16:03:41,103 INFO L226 Difference]: Without dead ends: 6586 [2022-03-15 16:03:41,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:03:41,104 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 412 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 2830 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:41,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1415 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2830 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:41,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2022-03-15 16:03:41,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 5596. [2022-03-15 16:03:41,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 5595 states have (on average 3.4900804289544234) internal successors, (19527), 5595 states have internal predecessors, (19527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:41,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 19527 transitions. [2022-03-15 16:03:41,193 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 19527 transitions. Word has length 47 [2022-03-15 16:03:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:41,193 INFO L470 AbstractCegarLoop]: Abstraction has 5596 states and 19527 transitions. [2022-03-15 16:03:41,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 19527 transitions. [2022-03-15 16:03:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:41,202 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:41,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:41,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 16:03:41,202 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:41,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:41,202 INFO L85 PathProgramCache]: Analyzing trace with hash 828267705, now seen corresponding path program 66 times [2022-03-15 16:03:41,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:41,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842325450] [2022-03-15 16:03:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:41,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:41,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:41,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842325450] [2022-03-15 16:03:41,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842325450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:41,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:41,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:41,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426126992] [2022-03-15 16:03:41,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:41,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:41,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:41,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:41,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:41,449 INFO L87 Difference]: Start difference. First operand 5596 states and 19527 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:42,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:42,691 INFO L93 Difference]: Finished difference Result 6504 states and 22553 transitions. [2022-03-15 16:03:42,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:03:42,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:42,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:42,706 INFO L225 Difference]: With dead ends: 6504 [2022-03-15 16:03:42,706 INFO L226 Difference]: Without dead ends: 6405 [2022-03-15 16:03:42,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:03:42,706 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 343 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:42,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 1253 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-03-15 16:03:42,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 5588. [2022-03-15 16:03:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5588 states, 5587 states have (on average 3.4914981206371936) internal successors, (19507), 5587 states have internal predecessors, (19507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5588 states to 5588 states and 19507 transitions. [2022-03-15 16:03:42,804 INFO L78 Accepts]: Start accepts. Automaton has 5588 states and 19507 transitions. Word has length 47 [2022-03-15 16:03:42,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:42,805 INFO L470 AbstractCegarLoop]: Abstraction has 5588 states and 19507 transitions. [2022-03-15 16:03:42,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:42,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5588 states and 19507 transitions. [2022-03-15 16:03:42,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:42,813 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:42,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:42,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 16:03:42,814 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:42,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1904012269, now seen corresponding path program 67 times [2022-03-15 16:03:42,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:42,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280302212] [2022-03-15 16:03:42,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:42,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:43,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:43,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280302212] [2022-03-15 16:03:43,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280302212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:43,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:43,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:43,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709816028] [2022-03-15 16:03:43,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:43,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:43,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:43,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:43,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:43,056 INFO L87 Difference]: Start difference. First operand 5588 states and 19507 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:44,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:44,231 INFO L93 Difference]: Finished difference Result 6489 states and 22536 transitions. [2022-03-15 16:03:44,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:03:44,231 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:44,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:44,246 INFO L225 Difference]: With dead ends: 6489 [2022-03-15 16:03:44,246 INFO L226 Difference]: Without dead ends: 6344 [2022-03-15 16:03:44,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:03:44,248 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 327 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:44,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 1196 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:44,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6344 states. [2022-03-15 16:03:44,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6344 to 5600. [2022-03-15 16:03:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 3.4893731023397034) internal successors, (19537), 5599 states have internal predecessors, (19537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 19537 transitions. [2022-03-15 16:03:44,348 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 19537 transitions. Word has length 47 [2022-03-15 16:03:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:44,349 INFO L470 AbstractCegarLoop]: Abstraction has 5600 states and 19537 transitions. [2022-03-15 16:03:44,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:44,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 19537 transitions. [2022-03-15 16:03:44,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:44,358 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:44,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:44,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 16:03:44,358 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:44,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:44,358 INFO L85 PathProgramCache]: Analyzing trace with hash -39440437, now seen corresponding path program 68 times [2022-03-15 16:03:44,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:44,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294306965] [2022-03-15 16:03:44,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:44,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:44,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:44,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294306965] [2022-03-15 16:03:44,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294306965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:44,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:44,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:44,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555965299] [2022-03-15 16:03:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:44,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:44,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:44,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:44,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:44,598 INFO L87 Difference]: Start difference. First operand 5600 states and 19537 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:45,824 INFO L93 Difference]: Finished difference Result 6510 states and 22540 transitions. [2022-03-15 16:03:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-15 16:03:45,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:45,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:45,839 INFO L225 Difference]: With dead ends: 6510 [2022-03-15 16:03:45,839 INFO L226 Difference]: Without dead ends: 6413 [2022-03-15 16:03:45,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1479, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:03:45,840 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 362 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:45,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1327 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:45,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2022-03-15 16:03:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 5606. [2022-03-15 16:03:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 5605 states have (on average 3.488314005352364) internal successors, (19552), 5605 states have internal predecessors, (19552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:45,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 19552 transitions. [2022-03-15 16:03:45,934 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 19552 transitions. Word has length 47 [2022-03-15 16:03:45,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:45,934 INFO L470 AbstractCegarLoop]: Abstraction has 5606 states and 19552 transitions. [2022-03-15 16:03:45,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 19552 transitions. [2022-03-15 16:03:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:45,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:45,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:45,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 16:03:45,944 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:45,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1764860947, now seen corresponding path program 69 times [2022-03-15 16:03:45,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:45,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816615343] [2022-03-15 16:03:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:45,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:46,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:46,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816615343] [2022-03-15 16:03:46,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816615343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:46,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:46,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:03:46,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079386397] [2022-03-15 16:03:46,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:46,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:03:46,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:46,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:03:46,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:03:46,185 INFO L87 Difference]: Start difference. First operand 5606 states and 19552 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:47,286 INFO L93 Difference]: Finished difference Result 6331 states and 21995 transitions. [2022-03-15 16:03:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 16:03:47,287 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:47,301 INFO L225 Difference]: With dead ends: 6331 [2022-03-15 16:03:47,301 INFO L226 Difference]: Without dead ends: 6170 [2022-03-15 16:03:47,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=1264, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 16:03:47,301 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 296 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:47,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1145 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:03:47,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2022-03-15 16:03:47,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 5536. [2022-03-15 16:03:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5536 states, 5535 states have (on average 3.499728997289973) internal successors, (19371), 5535 states have internal predecessors, (19371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5536 states to 5536 states and 19371 transitions. [2022-03-15 16:03:47,394 INFO L78 Accepts]: Start accepts. Automaton has 5536 states and 19371 transitions. Word has length 47 [2022-03-15 16:03:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:47,394 INFO L470 AbstractCegarLoop]: Abstraction has 5536 states and 19371 transitions. [2022-03-15 16:03:47,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:47,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5536 states and 19371 transitions. [2022-03-15 16:03:47,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:47,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:47,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:47,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 16:03:47,403 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:47,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:47,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1533599137, now seen corresponding path program 70 times [2022-03-15 16:03:47,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:47,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113550987] [2022-03-15 16:03:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:47,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:47,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:47,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113550987] [2022-03-15 16:03:47,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113550987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:47,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:47,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:03:47,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203060647] [2022-03-15 16:03:47,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:47,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:03:47,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:47,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:03:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:03:47,623 INFO L87 Difference]: Start difference. First operand 5536 states and 19371 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:48,782 INFO L93 Difference]: Finished difference Result 6663 states and 23163 transitions. [2022-03-15 16:03:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:03:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:48,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:48,800 INFO L225 Difference]: With dead ends: 6663 [2022-03-15 16:03:48,800 INFO L226 Difference]: Without dead ends: 6526 [2022-03-15 16:03:48,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1396, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:03:48,801 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 381 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:48,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1147 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:03:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6526 states. [2022-03-15 16:03:48,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6526 to 5556. [2022-03-15 16:03:48,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5556 states, 5555 states have (on average 3.499009900990099) internal successors, (19437), 5555 states have internal predecessors, (19437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5556 states to 5556 states and 19437 transitions. [2022-03-15 16:03:48,913 INFO L78 Accepts]: Start accepts. Automaton has 5556 states and 19437 transitions. Word has length 47 [2022-03-15 16:03:48,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:48,913 INFO L470 AbstractCegarLoop]: Abstraction has 5556 states and 19437 transitions. [2022-03-15 16:03:48,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 5556 states and 19437 transitions. [2022-03-15 16:03:48,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:48,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:48,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:48,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 16:03:48,922 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:48,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:48,922 INFO L85 PathProgramCache]: Analyzing trace with hash -15902915, now seen corresponding path program 71 times [2022-03-15 16:03:48,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:48,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978285808] [2022-03-15 16:03:48,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:48,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:49,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:49,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978285808] [2022-03-15 16:03:49,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978285808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:49,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:49,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:49,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689433753] [2022-03-15 16:03:49,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:49,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:49,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:49,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:49,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:49,150 INFO L87 Difference]: Start difference. First operand 5556 states and 19437 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:50,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:50,435 INFO L93 Difference]: Finished difference Result 6722 states and 23322 transitions. [2022-03-15 16:03:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:03:50,435 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:50,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:50,450 INFO L225 Difference]: With dead ends: 6722 [2022-03-15 16:03:50,451 INFO L226 Difference]: Without dead ends: 6633 [2022-03-15 16:03:50,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=1624, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:03:50,451 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 447 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:50,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 1202 Invalid, 2538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:50,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6633 states. [2022-03-15 16:03:50,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6633 to 5652. [2022-03-15 16:03:50,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5652 states, 5651 states have (on average 3.4919483277296055) internal successors, (19733), 5651 states have internal predecessors, (19733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5652 states to 5652 states and 19733 transitions. [2022-03-15 16:03:50,544 INFO L78 Accepts]: Start accepts. Automaton has 5652 states and 19733 transitions. Word has length 47 [2022-03-15 16:03:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:50,544 INFO L470 AbstractCegarLoop]: Abstraction has 5652 states and 19733 transitions. [2022-03-15 16:03:50,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:50,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5652 states and 19733 transitions. [2022-03-15 16:03:50,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:50,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:50,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:50,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 16:03:50,571 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:50,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:50,572 INFO L85 PathProgramCache]: Analyzing trace with hash 418126431, now seen corresponding path program 72 times [2022-03-15 16:03:50,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:50,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027145044] [2022-03-15 16:03:50,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:50,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:50,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:50,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:50,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027145044] [2022-03-15 16:03:50,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027145044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:50,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:50,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:50,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212010637] [2022-03-15 16:03:50,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:50,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:50,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:50,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:50,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:50,838 INFO L87 Difference]: Start difference. First operand 5652 states and 19733 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:52,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:52,146 INFO L93 Difference]: Finished difference Result 6695 states and 23235 transitions. [2022-03-15 16:03:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 16:03:52,146 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:52,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:52,161 INFO L225 Difference]: With dead ends: 6695 [2022-03-15 16:03:52,161 INFO L226 Difference]: Without dead ends: 6470 [2022-03-15 16:03:52,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=1633, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:03:52,162 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 392 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 2766 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:52,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 1434 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2766 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2022-03-15 16:03:52,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 5626. [2022-03-15 16:03:52,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5626 states, 5625 states have (on average 3.4922666666666666) internal successors, (19644), 5625 states have internal predecessors, (19644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:52,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5626 states to 5626 states and 19644 transitions. [2022-03-15 16:03:52,255 INFO L78 Accepts]: Start accepts. Automaton has 5626 states and 19644 transitions. Word has length 47 [2022-03-15 16:03:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:52,256 INFO L470 AbstractCegarLoop]: Abstraction has 5626 states and 19644 transitions. [2022-03-15 16:03:52,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:52,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5626 states and 19644 transitions. [2022-03-15 16:03:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:52,265 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:52,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:52,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 16:03:52,265 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:52,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:52,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1979559917, now seen corresponding path program 73 times [2022-03-15 16:03:52,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:52,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874539697] [2022-03-15 16:03:52,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:52,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:52,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:52,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874539697] [2022-03-15 16:03:52,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874539697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:52,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:52,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:52,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19541329] [2022-03-15 16:03:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:52,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:52,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:52,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:52,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:52,508 INFO L87 Difference]: Start difference. First operand 5626 states and 19644 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:53,858 INFO L93 Difference]: Finished difference Result 6714 states and 23296 transitions. [2022-03-15 16:03:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:03:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:53,874 INFO L225 Difference]: With dead ends: 6714 [2022-03-15 16:03:53,875 INFO L226 Difference]: Without dead ends: 6625 [2022-03-15 16:03:53,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=188, Invalid=1704, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:03:53,875 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 446 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:53,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 1284 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2022-03-15 16:03:53,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 5650. [2022-03-15 16:03:53,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5649 states have (on average 3.4908833421844574) internal successors, (19720), 5649 states have internal predecessors, (19720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 19720 transitions. [2022-03-15 16:03:53,980 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 19720 transitions. Word has length 47 [2022-03-15 16:03:53,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:53,980 INFO L470 AbstractCegarLoop]: Abstraction has 5650 states and 19720 transitions. [2022-03-15 16:03:53,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:53,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 19720 transitions. [2022-03-15 16:03:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:53,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:53,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:53,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 16:03:53,989 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:53,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:53,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1881378033, now seen corresponding path program 74 times [2022-03-15 16:03:53,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:53,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531874281] [2022-03-15 16:03:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:53,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:54,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:54,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531874281] [2022-03-15 16:03:54,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531874281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:54,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:54,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:54,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318368740] [2022-03-15 16:03:54,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:54,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:54,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:54,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:54,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:54,253 INFO L87 Difference]: Start difference. First operand 5650 states and 19720 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:55,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:55,621 INFO L93 Difference]: Finished difference Result 6722 states and 23316 transitions. [2022-03-15 16:03:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:03:55,622 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:55,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:55,636 INFO L225 Difference]: With dead ends: 6722 [2022-03-15 16:03:55,636 INFO L226 Difference]: Without dead ends: 6617 [2022-03-15 16:03:55,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=1709, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:03:55,637 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 445 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:55,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 1240 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:03:55,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6617 states. [2022-03-15 16:03:55,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6617 to 5642. [2022-03-15 16:03:55,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5642 states, 5641 states have (on average 3.490870413047332) internal successors, (19692), 5641 states have internal predecessors, (19692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:55,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5642 states to 5642 states and 19692 transitions. [2022-03-15 16:03:55,730 INFO L78 Accepts]: Start accepts. Automaton has 5642 states and 19692 transitions. Word has length 47 [2022-03-15 16:03:55,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:55,730 INFO L470 AbstractCegarLoop]: Abstraction has 5642 states and 19692 transitions. [2022-03-15 16:03:55,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:55,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5642 states and 19692 transitions. [2022-03-15 16:03:55,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:55,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:55,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:55,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 16:03:55,740 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:55,740 INFO L85 PathProgramCache]: Analyzing trace with hash -608444325, now seen corresponding path program 75 times [2022-03-15 16:03:55,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:55,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751661759] [2022-03-15 16:03:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:55,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:55,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:55,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751661759] [2022-03-15 16:03:55,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751661759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:55,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:55,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:55,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524281682] [2022-03-15 16:03:55,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:55,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:55,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:55,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:55,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:55,959 INFO L87 Difference]: Start difference. First operand 5642 states and 19692 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:57,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:57,207 INFO L93 Difference]: Finished difference Result 6719 states and 23321 transitions. [2022-03-15 16:03:57,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 16:03:57,207 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:57,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:57,222 INFO L225 Difference]: With dead ends: 6719 [2022-03-15 16:03:57,222 INFO L226 Difference]: Without dead ends: 6494 [2022-03-15 16:03:57,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:03:57,223 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 422 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:57,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1273 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:03:57,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6494 states. [2022-03-15 16:03:57,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6494 to 5562. [2022-03-15 16:03:57,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5562 states, 5561 states have (on average 3.4950548462506745) internal successors, (19436), 5561 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 19436 transitions. [2022-03-15 16:03:57,314 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 19436 transitions. Word has length 47 [2022-03-15 16:03:57,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:03:57,314 INFO L470 AbstractCegarLoop]: Abstraction has 5562 states and 19436 transitions. [2022-03-15 16:03:57,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 19436 transitions. [2022-03-15 16:03:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:03:57,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:03:57,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:03:57,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 16:03:57,323 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:03:57,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:03:57,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1885476099, now seen corresponding path program 76 times [2022-03-15 16:03:57,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:03:57,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587390615] [2022-03-15 16:03:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:03:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:03:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:03:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:03:57,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:03:57,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587390615] [2022-03-15 16:03:57,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587390615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:03:57,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:03:57,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:03:57,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849012680] [2022-03-15 16:03:57,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:03:57,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:03:57,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:03:57,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:03:57,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:03:57,553 INFO L87 Difference]: Start difference. First operand 5562 states and 19436 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:03:59,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:03:59,868 INFO L93 Difference]: Finished difference Result 8647 states and 30259 transitions. [2022-03-15 16:03:59,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-15 16:03:59,869 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:03:59,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:03:59,888 INFO L225 Difference]: With dead ends: 8647 [2022-03-15 16:03:59,888 INFO L226 Difference]: Without dead ends: 8510 [2022-03-15 16:03:59,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=350, Invalid=3310, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 16:03:59,889 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 559 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 4209 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 4286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:03:59,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 1987 Invalid, 4286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 4209 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:03:59,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8510 states. [2022-03-15 16:04:00,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8510 to 5600. [2022-03-15 16:04:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 3.4911591355599216) internal successors, (19547), 5599 states have internal predecessors, (19547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 19547 transitions. [2022-03-15 16:04:00,027 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 19547 transitions. Word has length 47 [2022-03-15 16:04:00,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:00,027 INFO L470 AbstractCegarLoop]: Abstraction has 5600 states and 19547 transitions. [2022-03-15 16:04:00,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 19547 transitions. [2022-03-15 16:04:00,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:00,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:00,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:00,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 16:04:00,036 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:00,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:00,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1899007521, now seen corresponding path program 77 times [2022-03-15 16:04:00,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:00,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655178871] [2022-03-15 16:04:00,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:00,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:00,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:00,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:00,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655178871] [2022-03-15 16:04:00,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655178871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:00,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:00,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:00,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374136446] [2022-03-15 16:04:00,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:00,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:00,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:00,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:00,282 INFO L87 Difference]: Start difference. First operand 5600 states and 19547 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:02,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:02,909 INFO L93 Difference]: Finished difference Result 9979 states and 35113 transitions. [2022-03-15 16:04:02,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-15 16:04:02,910 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:02,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:02,933 INFO L225 Difference]: With dead ends: 9979 [2022-03-15 16:04:02,934 INFO L226 Difference]: Without dead ends: 9890 [2022-03-15 16:04:02,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1195 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=422, Invalid=4000, Unknown=0, NotChecked=0, Total=4422 [2022-03-15 16:04:02,935 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 731 mSDsluCounter, 3520 mSDsCounter, 0 mSdLazyCounter, 4567 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 4673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:02,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 2245 Invalid, 4673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4567 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 16:04:02,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9890 states. [2022-03-15 16:04:03,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9890 to 5604. [2022-03-15 16:04:03,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 5603 states have (on average 3.4900945921827593) internal successors, (19555), 5603 states have internal predecessors, (19555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:03,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 19555 transitions. [2022-03-15 16:04:03,054 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 19555 transitions. Word has length 47 [2022-03-15 16:04:03,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:03,055 INFO L470 AbstractCegarLoop]: Abstraction has 5604 states and 19555 transitions. [2022-03-15 16:04:03,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:03,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 19555 transitions. [2022-03-15 16:04:03,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:03,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:03,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:03,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 16:04:03,064 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:03,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:03,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1545307867, now seen corresponding path program 78 times [2022-03-15 16:04:03,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:03,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422658739] [2022-03-15 16:04:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:03,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:03,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:03,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422658739] [2022-03-15 16:04:03,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422658739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:03,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:03,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:03,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254563019] [2022-03-15 16:04:03,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:03,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:03,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:03,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:03,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:03,306 INFO L87 Difference]: Start difference. First operand 5604 states and 19555 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:06,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:06,262 INFO L93 Difference]: Finished difference Result 10566 states and 37503 transitions. [2022-03-15 16:04:06,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-15 16:04:06,262 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:06,286 INFO L225 Difference]: With dead ends: 10566 [2022-03-15 16:04:06,287 INFO L226 Difference]: Without dead ends: 10459 [2022-03-15 16:04:06,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=445, Invalid=4667, Unknown=0, NotChecked=0, Total=5112 [2022-03-15 16:04:06,287 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 755 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 5272 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 5373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 5272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:06,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 2743 Invalid, 5373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 5272 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:04:06,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2022-03-15 16:04:06,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 5566. [2022-03-15 16:04:06,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5566 states, 5565 states have (on average 3.4936208445642407) internal successors, (19442), 5565 states have internal predecessors, (19442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:06,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5566 states to 5566 states and 19442 transitions. [2022-03-15 16:04:06,408 INFO L78 Accepts]: Start accepts. Automaton has 5566 states and 19442 transitions. Word has length 47 [2022-03-15 16:04:06,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:06,408 INFO L470 AbstractCegarLoop]: Abstraction has 5566 states and 19442 transitions. [2022-03-15 16:04:06,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5566 states and 19442 transitions. [2022-03-15 16:04:06,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:06,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:06,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:06,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-15 16:04:06,418 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:06,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:06,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1445941727, now seen corresponding path program 79 times [2022-03-15 16:04:06,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:06,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251241596] [2022-03-15 16:04:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:06,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:06,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:06,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251241596] [2022-03-15 16:04:06,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251241596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:06,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:06,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:06,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364447832] [2022-03-15 16:04:06,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:06,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:06,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:06,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:06,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:06,658 INFO L87 Difference]: Start difference. First operand 5566 states and 19442 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:08,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:08,159 INFO L93 Difference]: Finished difference Result 6918 states and 23853 transitions. [2022-03-15 16:04:08,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-15 16:04:08,160 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:08,175 INFO L225 Difference]: With dead ends: 6918 [2022-03-15 16:04:08,176 INFO L226 Difference]: Without dead ends: 6829 [2022-03-15 16:04:08,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 16:04:08,176 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 478 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 2853 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:08,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 1362 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2853 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:08,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6829 states. [2022-03-15 16:04:08,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6829 to 5576. [2022-03-15 16:04:08,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5575 states have (on average 3.4921973094170404) internal successors, (19469), 5575 states have internal predecessors, (19469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:08,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 19469 transitions. [2022-03-15 16:04:08,275 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 19469 transitions. Word has length 47 [2022-03-15 16:04:08,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:08,276 INFO L470 AbstractCegarLoop]: Abstraction has 5576 states and 19469 transitions. [2022-03-15 16:04:08,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 19469 transitions. [2022-03-15 16:04:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:08,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:08,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:08,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-15 16:04:08,287 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:08,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1122279903, now seen corresponding path program 80 times [2022-03-15 16:04:08,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:08,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225187082] [2022-03-15 16:04:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:08,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:08,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:08,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225187082] [2022-03-15 16:04:08,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225187082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:08,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:08,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:08,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190100436] [2022-03-15 16:04:08,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:08,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:08,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:08,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:08,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:08,535 INFO L87 Difference]: Start difference. First operand 5576 states and 19469 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:10,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:10,169 INFO L93 Difference]: Finished difference Result 6835 states and 23610 transitions. [2022-03-15 16:04:10,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 16:04:10,169 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:10,210 INFO L225 Difference]: With dead ends: 6835 [2022-03-15 16:04:10,210 INFO L226 Difference]: Without dead ends: 6714 [2022-03-15 16:04:10,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=227, Invalid=2223, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 16:04:10,211 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 452 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:10,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1424 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:04:10,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6714 states. [2022-03-15 16:04:10,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6714 to 5572. [2022-03-15 16:04:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5571 states have (on average 3.492191707054389) internal successors, (19455), 5571 states have internal predecessors, (19455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 19455 transitions. [2022-03-15 16:04:10,293 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 19455 transitions. Word has length 47 [2022-03-15 16:04:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:10,293 INFO L470 AbstractCegarLoop]: Abstraction has 5572 states and 19455 transitions. [2022-03-15 16:04:10,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:10,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 19455 transitions. [2022-03-15 16:04:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:10,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:10,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:10,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-15 16:04:10,302 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:10,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:10,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1277604133, now seen corresponding path program 81 times [2022-03-15 16:04:10,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:10,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853836484] [2022-03-15 16:04:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:10,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:10,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:10,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853836484] [2022-03-15 16:04:10,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853836484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:10,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:10,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:10,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344679634] [2022-03-15 16:04:10,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:10,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:10,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:10,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:10,542 INFO L87 Difference]: Start difference. First operand 5572 states and 19455 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:12,342 INFO L93 Difference]: Finished difference Result 7413 states and 25628 transitions. [2022-03-15 16:04:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 16:04:12,342 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:12,358 INFO L225 Difference]: With dead ends: 7413 [2022-03-15 16:04:12,358 INFO L226 Difference]: Without dead ends: 7298 [2022-03-15 16:04:12,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=2404, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 16:04:12,358 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 482 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 3587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:12,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 1776 Invalid, 3587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 16:04:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7298 states. [2022-03-15 16:04:12,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7298 to 5684. [2022-03-15 16:04:12,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5683 states have (on average 3.4867147633292275) internal successors, (19815), 5683 states have internal predecessors, (19815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:12,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 19815 transitions. [2022-03-15 16:04:12,449 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 19815 transitions. Word has length 47 [2022-03-15 16:04:12,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:12,449 INFO L470 AbstractCegarLoop]: Abstraction has 5684 states and 19815 transitions. [2022-03-15 16:04:12,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:12,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 19815 transitions. [2022-03-15 16:04:12,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:12,458 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:12,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:12,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-15 16:04:12,459 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:12,459 INFO L85 PathProgramCache]: Analyzing trace with hash -978712455, now seen corresponding path program 82 times [2022-03-15 16:04:12,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:12,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087919431] [2022-03-15 16:04:12,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:12,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:12,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:12,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087919431] [2022-03-15 16:04:12,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087919431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:12,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:12,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:12,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831272512] [2022-03-15 16:04:12,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:12,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:12,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:12,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:12,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:12,699 INFO L87 Difference]: Start difference. First operand 5684 states and 19815 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:14,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:14,222 INFO L93 Difference]: Finished difference Result 6907 states and 23824 transitions. [2022-03-15 16:04:14,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 16:04:14,222 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:14,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:14,237 INFO L225 Difference]: With dead ends: 6907 [2022-03-15 16:04:14,237 INFO L226 Difference]: Without dead ends: 6810 [2022-03-15 16:04:14,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:04:14,238 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 409 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:14,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 1506 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 16:04:14,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6810 states. [2022-03-15 16:04:14,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6810 to 5698. [2022-03-15 16:04:14,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5698 states, 5697 states have (on average 3.482885729331227) internal successors, (19842), 5697 states have internal predecessors, (19842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5698 states to 5698 states and 19842 transitions. [2022-03-15 16:04:14,336 INFO L78 Accepts]: Start accepts. Automaton has 5698 states and 19842 transitions. Word has length 47 [2022-03-15 16:04:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:14,336 INFO L470 AbstractCegarLoop]: Abstraction has 5698 states and 19842 transitions. [2022-03-15 16:04:14,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:14,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5698 states and 19842 transitions. [2022-03-15 16:04:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:14,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:14,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:14,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-15 16:04:14,345 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:14,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:14,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1590834331, now seen corresponding path program 83 times [2022-03-15 16:04:14,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:14,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122334658] [2022-03-15 16:04:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:14,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:14,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:14,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122334658] [2022-03-15 16:04:14,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122334658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:14,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:14,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:14,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717825060] [2022-03-15 16:04:14,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:14,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:14,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:14,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:14,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:14,629 INFO L87 Difference]: Start difference. First operand 5698 states and 19842 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:16,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:16,009 INFO L93 Difference]: Finished difference Result 6883 states and 23734 transitions. [2022-03-15 16:04:16,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 16:04:16,009 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:16,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:16,025 INFO L225 Difference]: With dead ends: 6883 [2022-03-15 16:04:16,025 INFO L226 Difference]: Without dead ends: 6778 [2022-03-15 16:04:16,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=1715, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:04:16,026 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 397 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:16,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1424 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:16,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2022-03-15 16:04:16,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 5684. [2022-03-15 16:04:16,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5683 states have (on average 3.4856589829315503) internal successors, (19809), 5683 states have internal predecessors, (19809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 19809 transitions. [2022-03-15 16:04:16,128 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 19809 transitions. Word has length 47 [2022-03-15 16:04:16,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:16,128 INFO L470 AbstractCegarLoop]: Abstraction has 5684 states and 19809 transitions. [2022-03-15 16:04:16,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 19809 transitions. [2022-03-15 16:04:16,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:16,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:16,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:16,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-15 16:04:16,137 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:16,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash -384565221, now seen corresponding path program 84 times [2022-03-15 16:04:16,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:16,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204763423] [2022-03-15 16:04:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:16,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:16,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:16,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204763423] [2022-03-15 16:04:16,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204763423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:16,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:16,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:16,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675808214] [2022-03-15 16:04:16,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:16,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:16,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:16,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:16,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:16,417 INFO L87 Difference]: Start difference. First operand 5684 states and 19809 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:17,893 INFO L93 Difference]: Finished difference Result 6810 states and 23594 transitions. [2022-03-15 16:04:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 16:04:17,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:17,908 INFO L225 Difference]: With dead ends: 6810 [2022-03-15 16:04:17,908 INFO L226 Difference]: Without dead ends: 6721 [2022-03-15 16:04:17,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=2121, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 16:04:17,909 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 522 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:17,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 1339 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:17,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-03-15 16:04:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 5704. [2022-03-15 16:04:17,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.485709275819744) internal successors, (19879), 5703 states have internal predecessors, (19879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:17,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19879 transitions. [2022-03-15 16:04:17,994 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19879 transitions. Word has length 47 [2022-03-15 16:04:17,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:17,994 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19879 transitions. [2022-03-15 16:04:17,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:17,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19879 transitions. [2022-03-15 16:04:18,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:18,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:18,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:18,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-15 16:04:18,003 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:18,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:18,003 INFO L85 PathProgramCache]: Analyzing trace with hash -708227045, now seen corresponding path program 85 times [2022-03-15 16:04:18,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:18,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645488006] [2022-03-15 16:04:18,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:18,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:18,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:18,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:18,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645488006] [2022-03-15 16:04:18,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645488006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:18,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:18,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:18,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939456903] [2022-03-15 16:04:18,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:18,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:18,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:18,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:18,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:18,243 INFO L87 Difference]: Start difference. First operand 5704 states and 19879 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:19,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:19,727 INFO L93 Difference]: Finished difference Result 6822 states and 23626 transitions. [2022-03-15 16:04:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 16:04:19,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:19,742 INFO L225 Difference]: With dead ends: 6822 [2022-03-15 16:04:19,742 INFO L226 Difference]: Without dead ends: 6693 [2022-03-15 16:04:19,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=224, Invalid=2128, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 16:04:19,743 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 502 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 2865 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:19,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 1359 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2865 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-03-15 16:04:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 5706. [2022-03-15 16:04:19,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5705 states have (on average 3.4839614373356707) internal successors, (19876), 5705 states have internal predecessors, (19876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 19876 transitions. [2022-03-15 16:04:19,830 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 19876 transitions. Word has length 47 [2022-03-15 16:04:19,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:19,830 INFO L470 AbstractCegarLoop]: Abstraction has 5706 states and 19876 transitions. [2022-03-15 16:04:19,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 19876 transitions. [2022-03-15 16:04:19,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:19,839 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:19,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:19,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-15 16:04:19,839 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:19,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:19,839 INFO L85 PathProgramCache]: Analyzing trace with hash -652115591, now seen corresponding path program 86 times [2022-03-15 16:04:19,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:19,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28669346] [2022-03-15 16:04:19,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:19,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:20,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:20,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28669346] [2022-03-15 16:04:20,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28669346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:20,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:20,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:20,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485983193] [2022-03-15 16:04:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:20,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:20,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:20,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:20,091 INFO L87 Difference]: Start difference. First operand 5706 states and 19876 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:21,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:21,532 INFO L93 Difference]: Finished difference Result 6855 states and 23757 transitions. [2022-03-15 16:04:21,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 16:04:21,532 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:21,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:21,546 INFO L225 Difference]: With dead ends: 6855 [2022-03-15 16:04:21,546 INFO L226 Difference]: Without dead ends: 6694 [2022-03-15 16:04:21,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 16:04:21,547 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 476 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 2947 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 2992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:21,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1420 Invalid, 2992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2947 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:21,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2022-03-15 16:04:21,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 5690. [2022-03-15 16:04:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5690 states, 5689 states have (on average 3.4846194410265423) internal successors, (19824), 5689 states have internal predecessors, (19824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5690 states to 5690 states and 19824 transitions. [2022-03-15 16:04:21,642 INFO L78 Accepts]: Start accepts. Automaton has 5690 states and 19824 transitions. Word has length 47 [2022-03-15 16:04:21,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:21,642 INFO L470 AbstractCegarLoop]: Abstraction has 5690 states and 19824 transitions. [2022-03-15 16:04:21,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand 5690 states and 19824 transitions. [2022-03-15 16:04:21,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:21,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:21,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:21,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-15 16:04:21,651 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:21,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1844482075, now seen corresponding path program 87 times [2022-03-15 16:04:21,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:21,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782175834] [2022-03-15 16:04:21,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:21,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:21,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:21,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782175834] [2022-03-15 16:04:21,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782175834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:21,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:21,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:21,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430619407] [2022-03-15 16:04:21,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:21,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:21,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:21,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:21,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:21,891 INFO L87 Difference]: Start difference. First operand 5690 states and 19824 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:24,161 INFO L93 Difference]: Finished difference Result 8085 states and 28237 transitions. [2022-03-15 16:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-15 16:04:24,161 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:24,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:24,207 INFO L225 Difference]: With dead ends: 8085 [2022-03-15 16:04:24,208 INFO L226 Difference]: Without dead ends: 7980 [2022-03-15 16:04:24,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=383, Invalid=3907, Unknown=0, NotChecked=0, Total=4290 [2022-03-15 16:04:24,209 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 640 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 4003 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 4075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:24,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [640 Valid, 2244 Invalid, 4075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4003 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 16:04:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7980 states. [2022-03-15 16:04:24,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7980 to 5716. [2022-03-15 16:04:24,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5716 states, 5715 states have (on average 3.483639545056868) internal successors, (19909), 5715 states have internal predecessors, (19909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 19909 transitions. [2022-03-15 16:04:24,295 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 19909 transitions. Word has length 47 [2022-03-15 16:04:24,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:24,296 INFO L470 AbstractCegarLoop]: Abstraction has 5716 states and 19909 transitions. [2022-03-15 16:04:24,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 19909 transitions. [2022-03-15 16:04:24,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:24,304 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:24,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:24,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-15 16:04:24,305 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:24,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:24,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1069364473, now seen corresponding path program 88 times [2022-03-15 16:04:24,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:24,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605794561] [2022-03-15 16:04:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:24,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:24,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:24,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605794561] [2022-03-15 16:04:24,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605794561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:24,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:24,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:24,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779229378] [2022-03-15 16:04:24,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:24,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:24,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:24,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:24,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:24,540 INFO L87 Difference]: Start difference. First operand 5716 states and 19909 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:26,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:26,455 INFO L93 Difference]: Finished difference Result 7773 states and 27009 transitions. [2022-03-15 16:04:26,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 16:04:26,459 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:26,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:26,475 INFO L225 Difference]: With dead ends: 7773 [2022-03-15 16:04:26,475 INFO L226 Difference]: Without dead ends: 7678 [2022-03-15 16:04:26,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=3005, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 16:04:26,476 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 563 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 3628 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:26,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 1929 Invalid, 3680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3628 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:04:26,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2022-03-15 16:04:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 5708. [2022-03-15 16:04:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 5707 states have (on average 3.485018398458034) internal successors, (19889), 5707 states have internal predecessors, (19889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 19889 transitions. [2022-03-15 16:04:26,568 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 19889 transitions. Word has length 47 [2022-03-15 16:04:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:26,568 INFO L470 AbstractCegarLoop]: Abstraction has 5708 states and 19889 transitions. [2022-03-15 16:04:26,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:26,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 19889 transitions. [2022-03-15 16:04:26,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:26,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:26,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:26,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-15 16:04:26,577 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:26,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:26,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1368256151, now seen corresponding path program 89 times [2022-03-15 16:04:26,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:26,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918461740] [2022-03-15 16:04:26,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:26,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:26,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:26,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918461740] [2022-03-15 16:04:26,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918461740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:26,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:26,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:26,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728148218] [2022-03-15 16:04:26,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:26,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:26,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:26,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:26,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:26,814 INFO L87 Difference]: Start difference. First operand 5708 states and 19889 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:28,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:28,185 INFO L93 Difference]: Finished difference Result 6958 states and 23989 transitions. [2022-03-15 16:04:28,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 16:04:28,185 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:28,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:28,201 INFO L225 Difference]: With dead ends: 6958 [2022-03-15 16:04:28,201 INFO L226 Difference]: Without dead ends: 6861 [2022-03-15 16:04:28,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:04:28,201 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 478 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:28,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 1209 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2665 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:28,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6861 states. [2022-03-15 16:04:28,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6861 to 5716. [2022-03-15 16:04:28,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5716 states, 5715 states have (on average 3.4832895888013997) internal successors, (19907), 5715 states have internal predecessors, (19907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 19907 transitions. [2022-03-15 16:04:28,345 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 19907 transitions. Word has length 47 [2022-03-15 16:04:28,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:28,346 INFO L470 AbstractCegarLoop]: Abstraction has 5716 states and 19907 transitions. [2022-03-15 16:04:28,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:28,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 19907 transitions. [2022-03-15 16:04:28,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:28,354 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:28,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:28,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-15 16:04:28,354 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:28,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:28,354 INFO L85 PathProgramCache]: Analyzing trace with hash -357164359, now seen corresponding path program 90 times [2022-03-15 16:04:28,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:28,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012151451] [2022-03-15 16:04:28,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:28,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:28,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:28,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:28,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012151451] [2022-03-15 16:04:28,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012151451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:28,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:28,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:28,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627314402] [2022-03-15 16:04:28,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:28,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:28,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:28,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:28,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:28,621 INFO L87 Difference]: Start difference. First operand 5716 states and 19907 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:29,936 INFO L93 Difference]: Finished difference Result 6934 states and 23899 transitions. [2022-03-15 16:04:29,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 16:04:29,936 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:29,951 INFO L225 Difference]: With dead ends: 6934 [2022-03-15 16:04:29,951 INFO L226 Difference]: Without dead ends: 6835 [2022-03-15 16:04:29,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 16:04:29,951 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 437 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 2698 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:29,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 1240 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2698 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:29,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6835 states. [2022-03-15 16:04:30,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6835 to 5708. [2022-03-15 16:04:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 5707 states have (on average 3.4846679516383388) internal successors, (19887), 5707 states have internal predecessors, (19887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:30,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 19887 transitions. [2022-03-15 16:04:30,040 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 19887 transitions. Word has length 47 [2022-03-15 16:04:30,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:30,041 INFO L470 AbstractCegarLoop]: Abstraction has 5708 states and 19887 transitions. [2022-03-15 16:04:30,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:30,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 19887 transitions. [2022-03-15 16:04:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:30,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:30,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:30,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-15 16:04:30,049 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:30,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:30,050 INFO L85 PathProgramCache]: Analyzing trace with hash 718580205, now seen corresponding path program 91 times [2022-03-15 16:04:30,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:30,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266649938] [2022-03-15 16:04:30,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:30,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:30,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:30,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:30,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266649938] [2022-03-15 16:04:30,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266649938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:30,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:30,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:30,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762977780] [2022-03-15 16:04:30,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:30,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:30,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:30,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:30,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:30,282 INFO L87 Difference]: Start difference. First operand 5708 states and 19887 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:31,701 INFO L93 Difference]: Finished difference Result 6809 states and 23600 transitions. [2022-03-15 16:04:31,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:04:31,702 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:31,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:31,716 INFO L225 Difference]: With dead ends: 6809 [2022-03-15 16:04:31,717 INFO L226 Difference]: Without dead ends: 6664 [2022-03-15 16:04:31,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 16:04:31,717 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 461 mSDsluCounter, 2593 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:31,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1411 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:31,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6664 states. [2022-03-15 16:04:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6664 to 5720. [2022-03-15 16:04:31,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5719 states have (on average 3.4826018534708867) internal successors, (19917), 5719 states have internal predecessors, (19917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 19917 transitions. [2022-03-15 16:04:31,811 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 19917 transitions. Word has length 47 [2022-03-15 16:04:31,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:31,812 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 19917 transitions. [2022-03-15 16:04:31,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 19917 transitions. [2022-03-15 16:04:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:31,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:31,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:31,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-15 16:04:31,821 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:31,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1224872501, now seen corresponding path program 92 times [2022-03-15 16:04:31,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:31,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681167417] [2022-03-15 16:04:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:31,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:32,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:32,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681167417] [2022-03-15 16:04:32,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681167417] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:32,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:32,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:32,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109763194] [2022-03-15 16:04:32,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:32,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:32,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:32,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:32,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:32,077 INFO L87 Difference]: Start difference. First operand 5720 states and 19917 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:33,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:33,382 INFO L93 Difference]: Finished difference Result 6809 states and 23523 transitions. [2022-03-15 16:04:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 16:04:33,382 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:33,396 INFO L225 Difference]: With dead ends: 6809 [2022-03-15 16:04:33,397 INFO L226 Difference]: Without dead ends: 6712 [2022-03-15 16:04:33,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:04:33,397 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 439 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:33,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 1224 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2022-03-15 16:04:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 5726. [2022-03-15 16:04:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5726 states, 5725 states have (on average 3.481572052401747) internal successors, (19932), 5725 states have internal predecessors, (19932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:33,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 19932 transitions. [2022-03-15 16:04:33,489 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 19932 transitions. Word has length 47 [2022-03-15 16:04:33,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:33,489 INFO L470 AbstractCegarLoop]: Abstraction has 5726 states and 19932 transitions. [2022-03-15 16:04:33,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:33,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 19932 transitions. [2022-03-15 16:04:33,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:33,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:33,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:33,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-15 16:04:33,498 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:33,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:33,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1344674285, now seen corresponding path program 93 times [2022-03-15 16:04:33,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:33,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886649911] [2022-03-15 16:04:33,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:33,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:33,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:33,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886649911] [2022-03-15 16:04:33,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886649911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:33,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:33,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:04:33,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257438539] [2022-03-15 16:04:33,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:33,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:04:33,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:33,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:04:33,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:04:33,736 INFO L87 Difference]: Start difference. First operand 5726 states and 19932 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:35,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:35,021 INFO L93 Difference]: Finished difference Result 6710 states and 23218 transitions. [2022-03-15 16:04:35,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:04:35,021 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:35,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:35,036 INFO L225 Difference]: With dead ends: 6710 [2022-03-15 16:04:35,036 INFO L226 Difference]: Without dead ends: 6581 [2022-03-15 16:04:35,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:04:35,037 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 386 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:35,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1306 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:35,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6581 states. [2022-03-15 16:04:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6581 to 5688. [2022-03-15 16:04:35,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5688 states, 5687 states have (on average 3.489185862493406) internal successors, (19843), 5687 states have internal predecessors, (19843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:35,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 19843 transitions. [2022-03-15 16:04:35,132 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 19843 transitions. Word has length 47 [2022-03-15 16:04:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:35,132 INFO L470 AbstractCegarLoop]: Abstraction has 5688 states and 19843 transitions. [2022-03-15 16:04:35,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:35,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 19843 transitions. [2022-03-15 16:04:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:35,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:35,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:35,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-15 16:04:35,142 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:35,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:35,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1118815907, now seen corresponding path program 94 times [2022-03-15 16:04:35,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:35,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614352269] [2022-03-15 16:04:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:35,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:35,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614352269] [2022-03-15 16:04:35,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614352269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:35,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:35,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:04:35,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209806861] [2022-03-15 16:04:35,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:35,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:04:35,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:04:35,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:04:35,366 INFO L87 Difference]: Start difference. First operand 5688 states and 19843 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:36,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:36,479 INFO L93 Difference]: Finished difference Result 6627 states and 22989 transitions. [2022-03-15 16:04:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:04:36,479 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:36,493 INFO L225 Difference]: With dead ends: 6627 [2022-03-15 16:04:36,493 INFO L226 Difference]: Without dead ends: 6490 [2022-03-15 16:04:36,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=1187, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 16:04:36,493 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 305 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 2430 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:36,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1235 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:04:36,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6490 states. [2022-03-15 16:04:36,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6490 to 5704. [2022-03-15 16:04:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.4878134315272664) internal successors, (19891), 5703 states have internal predecessors, (19891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19891 transitions. [2022-03-15 16:04:36,578 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19891 transitions. Word has length 47 [2022-03-15 16:04:36,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:36,578 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19891 transitions. [2022-03-15 16:04:36,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:36,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19891 transitions. [2022-03-15 16:04:36,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:36,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:36,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:36,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-15 16:04:36,588 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 398880315, now seen corresponding path program 95 times [2022-03-15 16:04:36,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:36,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692583238] [2022-03-15 16:04:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:36,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:36,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:36,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:36,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692583238] [2022-03-15 16:04:36,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692583238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:36,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:36,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:36,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194547871] [2022-03-15 16:04:36,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:36,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:36,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:36,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:36,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:36,846 INFO L87 Difference]: Start difference. First operand 5704 states and 19891 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:38,041 INFO L93 Difference]: Finished difference Result 6686 states and 23148 transitions. [2022-03-15 16:04:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:04:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:38,055 INFO L225 Difference]: With dead ends: 6686 [2022-03-15 16:04:38,055 INFO L226 Difference]: Without dead ends: 6597 [2022-03-15 16:04:38,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1399, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:04:38,056 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 378 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:38,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 1217 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:38,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6597 states. [2022-03-15 16:04:38,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6597 to 5768. [2022-03-15 16:04:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.486561470435235) internal successors, (20107), 5767 states have internal predecessors, (20107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:38,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20107 transitions. [2022-03-15 16:04:38,138 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20107 transitions. Word has length 47 [2022-03-15 16:04:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:38,139 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20107 transitions. [2022-03-15 16:04:38,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20107 transitions. [2022-03-15 16:04:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:38,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:38,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:38,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-15 16:04:38,147 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:38,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:38,147 INFO L85 PathProgramCache]: Analyzing trace with hash 832909661, now seen corresponding path program 96 times [2022-03-15 16:04:38,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:38,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996965971] [2022-03-15 16:04:38,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:38,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:38,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:38,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996965971] [2022-03-15 16:04:38,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996965971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:38,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:38,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:38,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673889922] [2022-03-15 16:04:38,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:38,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:38,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:38,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:38,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:38,375 INFO L87 Difference]: Start difference. First operand 5768 states and 20107 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:39,589 INFO L93 Difference]: Finished difference Result 6579 states and 22821 transitions. [2022-03-15 16:04:39,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 16:04:39,590 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:39,604 INFO L225 Difference]: With dead ends: 6579 [2022-03-15 16:04:39,604 INFO L226 Difference]: Without dead ends: 6450 [2022-03-15 16:04:39,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=1262, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 16:04:39,605 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 307 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 2602 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:39,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1273 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2602 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:39,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6450 states. [2022-03-15 16:04:39,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6450 to 5768. [2022-03-15 16:04:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4823998612796947) internal successors, (20083), 5767 states have internal predecessors, (20083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20083 transitions. [2022-03-15 16:04:39,705 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20083 transitions. Word has length 47 [2022-03-15 16:04:39,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:39,705 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20083 transitions. [2022-03-15 16:04:39,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:39,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20083 transitions. [2022-03-15 16:04:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:39,716 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:39,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:39,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-15 16:04:39,717 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:39,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:39,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1900624149, now seen corresponding path program 97 times [2022-03-15 16:04:39,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:39,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028658849] [2022-03-15 16:04:39,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:39,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:39,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:39,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028658849] [2022-03-15 16:04:39,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028658849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:39,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:39,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:39,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141820417] [2022-03-15 16:04:39,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:39,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:39,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:39,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:39,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:39,960 INFO L87 Difference]: Start difference. First operand 5768 states and 20083 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:41,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:41,194 INFO L93 Difference]: Finished difference Result 6638 states and 22988 transitions. [2022-03-15 16:04:41,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:04:41,195 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:41,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:41,208 INFO L225 Difference]: With dead ends: 6638 [2022-03-15 16:04:41,208 INFO L226 Difference]: Without dead ends: 6549 [2022-03-15 16:04:41,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=1470, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:04:41,209 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 387 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:41,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1273 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:41,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6549 states. [2022-03-15 16:04:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6549 to 5768. [2022-03-15 16:04:41,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4823998612796947) internal successors, (20083), 5767 states have internal predecessors, (20083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20083 transitions. [2022-03-15 16:04:41,315 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20083 transitions. Word has length 47 [2022-03-15 16:04:41,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:41,315 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20083 transitions. [2022-03-15 16:04:41,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:41,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20083 transitions. [2022-03-15 16:04:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:41,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:41,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:41,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-15 16:04:41,324 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:41,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1466594803, now seen corresponding path program 98 times [2022-03-15 16:04:41,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:41,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935057680] [2022-03-15 16:04:41,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:41,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:41,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:41,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:41,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935057680] [2022-03-15 16:04:41,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935057680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:41,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:41,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:41,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251414747] [2022-03-15 16:04:41,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:41,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:41,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:41,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:41,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:41,592 INFO L87 Difference]: Start difference. First operand 5768 states and 20083 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:42,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:42,769 INFO L93 Difference]: Finished difference Result 6630 states and 22960 transitions. [2022-03-15 16:04:42,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 16:04:42,770 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:42,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:42,783 INFO L225 Difference]: With dead ends: 6630 [2022-03-15 16:04:42,783 INFO L226 Difference]: Without dead ends: 6525 [2022-03-15 16:04:42,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=1326, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:04:42,784 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 367 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:42,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1200 Invalid, 2516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:42,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6525 states. [2022-03-15 16:04:42,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6525 to 5784. [2022-03-15 16:04:42,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.4810651910772954) internal successors, (20131), 5783 states have internal predecessors, (20131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:42,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20131 transitions. [2022-03-15 16:04:42,880 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20131 transitions. Word has length 47 [2022-03-15 16:04:42,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:42,880 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20131 transitions. [2022-03-15 16:04:42,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20131 transitions. [2022-03-15 16:04:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:42,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:42,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:42,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-15 16:04:42,889 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:42,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:42,890 INFO L85 PathProgramCache]: Analyzing trace with hash -193661095, now seen corresponding path program 99 times [2022-03-15 16:04:42,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:42,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305953601] [2022-03-15 16:04:42,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:42,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:43,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:43,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305953601] [2022-03-15 16:04:43,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305953601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:43,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:43,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:43,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713168108] [2022-03-15 16:04:43,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:43,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:43,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:43,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:43,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:43,115 INFO L87 Difference]: Start difference. First operand 5784 states and 20131 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:44,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:44,319 INFO L93 Difference]: Finished difference Result 6643 states and 23013 transitions. [2022-03-15 16:04:44,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:04:44,319 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:44,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:44,333 INFO L225 Difference]: With dead ends: 6643 [2022-03-15 16:04:44,333 INFO L226 Difference]: Without dead ends: 6390 [2022-03-15 16:04:44,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:04:44,334 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 337 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 2679 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:44,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1361 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2679 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6390 states. [2022-03-15 16:04:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6390 to 5676. [2022-03-15 16:04:44,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5676 states, 5675 states have (on average 3.490925110132159) internal successors, (19811), 5675 states have internal predecessors, (19811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5676 states to 5676 states and 19811 transitions. [2022-03-15 16:04:44,422 INFO L78 Accepts]: Start accepts. Automaton has 5676 states and 19811 transitions. Word has length 47 [2022-03-15 16:04:44,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:44,422 INFO L470 AbstractCegarLoop]: Abstraction has 5676 states and 19811 transitions. [2022-03-15 16:04:44,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5676 states and 19811 transitions. [2022-03-15 16:04:44,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:44,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:44,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:44,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-15 16:04:44,431 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:44,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash -79948249, now seen corresponding path program 100 times [2022-03-15 16:04:44,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:44,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905439604] [2022-03-15 16:04:44,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:44,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:44,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:44,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:44,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905439604] [2022-03-15 16:04:44,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905439604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:44,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:44,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:04:44,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466727834] [2022-03-15 16:04:44,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:44,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:04:44,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:44,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:04:44,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:04:44,652 INFO L87 Difference]: Start difference. First operand 5676 states and 19811 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:45,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:45,756 INFO L93 Difference]: Finished difference Result 6495 states and 22527 transitions. [2022-03-15 16:04:45,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:04:45,757 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:45,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:45,770 INFO L225 Difference]: With dead ends: 6495 [2022-03-15 16:04:45,770 INFO L226 Difference]: Without dead ends: 6358 [2022-03-15 16:04:45,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=1191, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 16:04:45,770 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 302 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:45,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1156 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:04:45,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6358 states. [2022-03-15 16:04:45,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6358 to 5732. [2022-03-15 16:04:45,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5732 states, 5731 states have (on average 3.486128075379515) internal successors, (19979), 5731 states have internal predecessors, (19979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:45,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5732 states to 5732 states and 19979 transitions. [2022-03-15 16:04:45,849 INFO L78 Accepts]: Start accepts. Automaton has 5732 states and 19979 transitions. Word has length 47 [2022-03-15 16:04:45,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:45,849 INFO L470 AbstractCegarLoop]: Abstraction has 5732 states and 19979 transitions. [2022-03-15 16:04:45,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5732 states and 19979 transitions. [2022-03-15 16:04:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:45,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:45,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:45,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-15 16:04:45,859 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:45,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:45,859 INFO L85 PathProgramCache]: Analyzing trace with hash 637619751, now seen corresponding path program 101 times [2022-03-15 16:04:45,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:45,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224125800] [2022-03-15 16:04:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:45,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:46,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:46,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224125800] [2022-03-15 16:04:46,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224125800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:46,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:46,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:46,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782244817] [2022-03-15 16:04:46,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:46,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:46,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:46,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:46,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:46,106 INFO L87 Difference]: Start difference. First operand 5732 states and 19979 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:47,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:47,263 INFO L93 Difference]: Finished difference Result 6554 states and 22686 transitions. [2022-03-15 16:04:47,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:04:47,263 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:47,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:47,277 INFO L225 Difference]: With dead ends: 6554 [2022-03-15 16:04:47,277 INFO L226 Difference]: Without dead ends: 6465 [2022-03-15 16:04:47,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:04:47,277 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 375 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:47,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1140 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:47,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6465 states. [2022-03-15 16:04:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6465 to 5796. [2022-03-15 16:04:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 5795 states have (on average 3.4849007765314925) internal successors, (20195), 5795 states have internal predecessors, (20195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:47,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 20195 transitions. [2022-03-15 16:04:47,363 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 20195 transitions. Word has length 47 [2022-03-15 16:04:47,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:47,363 INFO L470 AbstractCegarLoop]: Abstraction has 5796 states and 20195 transitions. [2022-03-15 16:04:47,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 20195 transitions. [2022-03-15 16:04:47,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:47,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:47,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:47,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-15 16:04:47,372 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:47,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:47,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1046842935, now seen corresponding path program 102 times [2022-03-15 16:04:47,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:47,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109709728] [2022-03-15 16:04:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:47,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:47,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:47,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:47,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109709728] [2022-03-15 16:04:47,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109709728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:47,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:47,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:47,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808457922] [2022-03-15 16:04:47,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:47,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:47,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:47,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:47,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:47,598 INFO L87 Difference]: Start difference. First operand 5796 states and 20195 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:48,681 INFO L93 Difference]: Finished difference Result 6447 states and 22359 transitions. [2022-03-15 16:04:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 16:04:48,681 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:48,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:48,695 INFO L225 Difference]: With dead ends: 6447 [2022-03-15 16:04:48,695 INFO L226 Difference]: Without dead ends: 6318 [2022-03-15 16:04:48,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 16:04:48,696 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 310 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:48,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 1121 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:04:48,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2022-03-15 16:04:48,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 5796. [2022-03-15 16:04:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 5795 states have (on average 3.4807592752372734) internal successors, (20171), 5795 states have internal predecessors, (20171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:48,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 20171 transitions. [2022-03-15 16:04:48,791 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 20171 transitions. Word has length 47 [2022-03-15 16:04:48,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:48,791 INFO L470 AbstractCegarLoop]: Abstraction has 5796 states and 20171 transitions. [2022-03-15 16:04:48,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:48,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 20171 transitions. [2022-03-15 16:04:48,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:48,801 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:48,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:48,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-15 16:04:48,801 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:48,801 INFO L85 PathProgramCache]: Analyzing trace with hash 997297481, now seen corresponding path program 103 times [2022-03-15 16:04:48,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:48,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990119732] [2022-03-15 16:04:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:48,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:49,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:49,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990119732] [2022-03-15 16:04:49,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990119732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:49,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:49,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:49,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552243377] [2022-03-15 16:04:49,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:49,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:49,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:49,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:49,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:49,041 INFO L87 Difference]: Start difference. First operand 5796 states and 20171 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:50,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:50,256 INFO L93 Difference]: Finished difference Result 6506 states and 22526 transitions. [2022-03-15 16:04:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-15 16:04:50,256 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:50,270 INFO L225 Difference]: With dead ends: 6506 [2022-03-15 16:04:50,270 INFO L226 Difference]: Without dead ends: 6417 [2022-03-15 16:04:50,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=1478, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:04:50,270 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 385 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:50,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 1197 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:50,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6417 states. [2022-03-15 16:04:50,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6417 to 5796. [2022-03-15 16:04:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 5795 states have (on average 3.4807592752372734) internal successors, (20171), 5795 states have internal predecessors, (20171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 20171 transitions. [2022-03-15 16:04:50,356 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 20171 transitions. Word has length 47 [2022-03-15 16:04:50,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:50,357 INFO L470 AbstractCegarLoop]: Abstraction has 5796 states and 20171 transitions. [2022-03-15 16:04:50,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 20171 transitions. [2022-03-15 16:04:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:50,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:50,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:50,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-15 16:04:50,365 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:50,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:50,366 INFO L85 PathProgramCache]: Analyzing trace with hash -687165205, now seen corresponding path program 104 times [2022-03-15 16:04:50,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:50,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217126574] [2022-03-15 16:04:50,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:50,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:50,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:50,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217126574] [2022-03-15 16:04:50,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217126574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:50,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:50,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:50,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554045066] [2022-03-15 16:04:50,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:50,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:50,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:50,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:50,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:50,586 INFO L87 Difference]: Start difference. First operand 5796 states and 20171 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:51,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:51,677 INFO L93 Difference]: Finished difference Result 6498 states and 22498 transitions. [2022-03-15 16:04:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:04:51,677 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:51,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:51,692 INFO L225 Difference]: With dead ends: 6498 [2022-03-15 16:04:51,692 INFO L226 Difference]: Without dead ends: 6393 [2022-03-15 16:04:51,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=1334, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:04:51,692 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 372 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:51,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 1061 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:04:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6393 states. [2022-03-15 16:04:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6393 to 5812. [2022-03-15 16:04:51,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5812 states, 5811 states have (on average 3.4794355532610566) internal successors, (20219), 5811 states have internal predecessors, (20219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:51,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5812 states to 5812 states and 20219 transitions. [2022-03-15 16:04:51,781 INFO L78 Accepts]: Start accepts. Automaton has 5812 states and 20219 transitions. Word has length 47 [2022-03-15 16:04:51,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:51,781 INFO L470 AbstractCegarLoop]: Abstraction has 5812 states and 20219 transitions. [2022-03-15 16:04:51,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:51,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5812 states and 20219 transitions. [2022-03-15 16:04:51,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:51,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:51,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:51,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-15 16:04:51,790 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:51,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:51,790 INFO L85 PathProgramCache]: Analyzing trace with hash 641532215, now seen corresponding path program 105 times [2022-03-15 16:04:51,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:51,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525979115] [2022-03-15 16:04:51,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:51,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:52,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:52,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525979115] [2022-03-15 16:04:52,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525979115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:52,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:52,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:52,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602187018] [2022-03-15 16:04:52,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:52,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:52,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:52,018 INFO L87 Difference]: Start difference. First operand 5812 states and 20219 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:53,100 INFO L93 Difference]: Finished difference Result 6391 states and 22171 transitions. [2022-03-15 16:04:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 16:04:53,100 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:53,113 INFO L225 Difference]: With dead ends: 6391 [2022-03-15 16:04:53,113 INFO L226 Difference]: Without dead ends: 6118 [2022-03-15 16:04:53,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=1196, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 16:04:53,114 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 302 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 2424 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:53,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1133 Invalid, 2442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2424 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:04:53,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6118 states. [2022-03-15 16:04:53,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6118 to 5684. [2022-03-15 16:04:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5683 states have (on average 3.4888263241245823) internal successors, (19827), 5683 states have internal predecessors, (19827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 19827 transitions. [2022-03-15 16:04:53,200 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 19827 transitions. Word has length 47 [2022-03-15 16:04:53,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:53,200 INFO L470 AbstractCegarLoop]: Abstraction has 5684 states and 19827 transitions. [2022-03-15 16:04:53,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:53,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 19827 transitions. [2022-03-15 16:04:53,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:53,209 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:53,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:53,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-15 16:04:53,210 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:53,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:53,210 INFO L85 PathProgramCache]: Analyzing trace with hash -162376707, now seen corresponding path program 106 times [2022-03-15 16:04:53,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:53,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113651262] [2022-03-15 16:04:53,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:53,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:53,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:53,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113651262] [2022-03-15 16:04:53,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113651262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:53,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:53,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:04:53,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573958819] [2022-03-15 16:04:53,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:53,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:04:53,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:53,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:04:53,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:04:53,428 INFO L87 Difference]: Start difference. First operand 5684 states and 19827 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:54,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:54,716 INFO L93 Difference]: Finished difference Result 6651 states and 23069 transitions. [2022-03-15 16:04:54,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:04:54,716 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:54,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:54,732 INFO L225 Difference]: With dead ends: 6651 [2022-03-15 16:04:54,732 INFO L226 Difference]: Without dead ends: 6514 [2022-03-15 16:04:54,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=1325, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:04:54,733 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 354 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:54,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1176 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:54,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2022-03-15 16:04:54,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 5704. [2022-03-15 16:04:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.488164124145187) internal successors, (19893), 5703 states have internal predecessors, (19893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19893 transitions. [2022-03-15 16:04:54,838 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19893 transitions. Word has length 47 [2022-03-15 16:04:54,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:54,838 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19893 transitions. [2022-03-15 16:04:54,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:54,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19893 transitions. [2022-03-15 16:04:54,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:54,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:54,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:54,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-15 16:04:54,847 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:54,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:54,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1355319515, now seen corresponding path program 107 times [2022-03-15 16:04:54,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:54,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872146457] [2022-03-15 16:04:54,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:54,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:55,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:55,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872146457] [2022-03-15 16:04:55,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872146457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:55,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:55,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:55,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900275148] [2022-03-15 16:04:55,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:55,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:55,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:55,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:55,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:55,093 INFO L87 Difference]: Start difference. First operand 5704 states and 19893 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:56,494 INFO L93 Difference]: Finished difference Result 6710 states and 23228 transitions. [2022-03-15 16:04:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 16:04:56,494 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:56,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:56,510 INFO L225 Difference]: With dead ends: 6710 [2022-03-15 16:04:56,510 INFO L226 Difference]: Without dead ends: 6621 [2022-03-15 16:04:56,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=1547, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 16:04:56,511 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 420 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:56,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 1227 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:04:56,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6621 states. [2022-03-15 16:04:56,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6621 to 5768. [2022-03-15 16:04:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4869082711981965) internal successors, (20109), 5767 states have internal predecessors, (20109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:56,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20109 transitions. [2022-03-15 16:04:56,620 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20109 transitions. Word has length 47 [2022-03-15 16:04:56,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:56,620 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20109 transitions. [2022-03-15 16:04:56,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:56,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20109 transitions. [2022-03-15 16:04:56,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:56,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:56,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:56,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-15 16:04:56,630 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:56,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:56,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1789348861, now seen corresponding path program 108 times [2022-03-15 16:04:56,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:56,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082189286] [2022-03-15 16:04:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:56,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:56,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:56,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:56,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082189286] [2022-03-15 16:04:56,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082189286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:56,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:56,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:56,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477048372] [2022-03-15 16:04:56,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:56,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:56,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:56,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:56,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:56,881 INFO L87 Difference]: Start difference. First operand 5768 states and 20109 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:58,165 INFO L93 Difference]: Finished difference Result 6603 states and 22901 transitions. [2022-03-15 16:04:58,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:04:58,165 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:58,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:58,181 INFO L225 Difference]: With dead ends: 6603 [2022-03-15 16:04:58,181 INFO L226 Difference]: Without dead ends: 6474 [2022-03-15 16:04:58,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 16:04:58,181 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 363 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:58,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1141 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:58,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2022-03-15 16:04:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 5768. [2022-03-15 16:04:58,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4827466620426564) internal successors, (20085), 5767 states have internal predecessors, (20085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20085 transitions. [2022-03-15 16:04:58,339 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20085 transitions. Word has length 47 [2022-03-15 16:04:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:04:58,339 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20085 transitions. [2022-03-15 16:04:58,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20085 transitions. [2022-03-15 16:04:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:04:58,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:04:58,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:04:58,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-15 16:04:58,351 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:04:58,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:04:58,351 INFO L85 PathProgramCache]: Analyzing trace with hash -944184949, now seen corresponding path program 109 times [2022-03-15 16:04:58,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:04:58,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039282300] [2022-03-15 16:04:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:04:58,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:04:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:04:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:04:58,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:04:58,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039282300] [2022-03-15 16:04:58,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039282300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:04:58,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:04:58,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:04:58,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595835907] [2022-03-15 16:04:58,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:04:58,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:04:58,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:04:58,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:04:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:04:58,611 INFO L87 Difference]: Start difference. First operand 5768 states and 20085 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:04:59,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:04:59,904 INFO L93 Difference]: Finished difference Result 6758 states and 23404 transitions. [2022-03-15 16:04:59,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 16:04:59,904 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:04:59,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:04:59,918 INFO L225 Difference]: With dead ends: 6758 [2022-03-15 16:04:59,918 INFO L226 Difference]: Without dead ends: 6669 [2022-03-15 16:04:59,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=189, Invalid=1703, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:04:59,918 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 449 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:04:59,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 1245 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:04:59,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6669 states. [2022-03-15 16:04:59,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6669 to 5768. [2022-03-15 16:04:59,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4827466620426564) internal successors, (20085), 5767 states have internal predecessors, (20085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:00,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20085 transitions. [2022-03-15 16:05:00,003 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20085 transitions. Word has length 47 [2022-03-15 16:05:00,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:00,003 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20085 transitions. [2022-03-15 16:05:00,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:00,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20085 transitions. [2022-03-15 16:05:00,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:00,012 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:00,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:00,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-15 16:05:00,012 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:00,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:00,013 INFO L85 PathProgramCache]: Analyzing trace with hash -510155603, now seen corresponding path program 110 times [2022-03-15 16:05:00,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:00,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46631660] [2022-03-15 16:05:00,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:00,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:00,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:00,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46631660] [2022-03-15 16:05:00,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46631660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:00,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:00,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:00,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525550731] [2022-03-15 16:05:00,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:00,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:00,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:00,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:00,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:00,233 INFO L87 Difference]: Start difference. First operand 5768 states and 20085 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:01,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:01,440 INFO L93 Difference]: Finished difference Result 6750 states and 23376 transitions. [2022-03-15 16:05:01,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 16:05:01,441 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:01,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:01,456 INFO L225 Difference]: With dead ends: 6750 [2022-03-15 16:05:01,456 INFO L226 Difference]: Without dead ends: 6645 [2022-03-15 16:05:01,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=1547, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 16:05:01,456 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 429 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:01,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1171 Invalid, 2528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:01,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2022-03-15 16:05:01,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 5784. [2022-03-15 16:05:01,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.481411032336158) internal successors, (20133), 5783 states have internal predecessors, (20133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:01,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20133 transitions. [2022-03-15 16:05:01,550 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20133 transitions. Word has length 47 [2022-03-15 16:05:01,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:01,550 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20133 transitions. [2022-03-15 16:05:01,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:01,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20133 transitions. [2022-03-15 16:05:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:01,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:01,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:01,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-15 16:05:01,561 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:01,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:01,561 INFO L85 PathProgramCache]: Analyzing trace with hash 762778105, now seen corresponding path program 111 times [2022-03-15 16:05:01,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:01,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907069332] [2022-03-15 16:05:01,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:01,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:01,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:01,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:01,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907069332] [2022-03-15 16:05:01,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907069332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:01,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:01,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:01,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077640641] [2022-03-15 16:05:01,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:01,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:01,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:01,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:01,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:01,785 INFO L87 Difference]: Start difference. First operand 5784 states and 20133 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:03,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:03,055 INFO L93 Difference]: Finished difference Result 6659 states and 23097 transitions. [2022-03-15 16:05:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 16:05:03,055 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:03,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:03,068 INFO L225 Difference]: With dead ends: 6659 [2022-03-15 16:05:03,068 INFO L226 Difference]: Without dead ends: 6434 [2022-03-15 16:05:03,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:05:03,069 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 432 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:03,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1245 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:03,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6434 states. [2022-03-15 16:05:03,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6434 to 5704. [2022-03-15 16:05:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.4853585832018235) internal successors, (19877), 5703 states have internal predecessors, (19877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:03,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19877 transitions. [2022-03-15 16:05:03,147 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19877 transitions. Word has length 47 [2022-03-15 16:05:03,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:03,147 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19877 transitions. [2022-03-15 16:05:03,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19877 transitions. [2022-03-15 16:05:03,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:03,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:03,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:03,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-15 16:05:03,155 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:03,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:03,155 INFO L85 PathProgramCache]: Analyzing trace with hash -680438787, now seen corresponding path program 112 times [2022-03-15 16:05:03,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:03,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567951814] [2022-03-15 16:05:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:03,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:03,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:03,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:03,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567951814] [2022-03-15 16:05:03,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567951814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:03,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:03,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:03,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742820502] [2022-03-15 16:05:03,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:03,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:03,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:03,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:03,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:03,378 INFO L87 Difference]: Start difference. First operand 5704 states and 19877 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:04,612 INFO L93 Difference]: Finished difference Result 6699 states and 23157 transitions. [2022-03-15 16:05:04,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:05:04,613 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:04,626 INFO L225 Difference]: With dead ends: 6699 [2022-03-15 16:05:04,626 INFO L226 Difference]: Without dead ends: 6562 [2022-03-15 16:05:04,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:05:04,627 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 376 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:04,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1293 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-03-15 16:05:04,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 5710. [2022-03-15 16:05:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 5709 states have (on average 3.4853739709231037) internal successors, (19898), 5709 states have internal predecessors, (19898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:04,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 19898 transitions. [2022-03-15 16:05:04,711 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 19898 transitions. Word has length 47 [2022-03-15 16:05:04,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:04,711 INFO L470 AbstractCegarLoop]: Abstraction has 5710 states and 19898 transitions. [2022-03-15 16:05:04,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 19898 transitions. [2022-03-15 16:05:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:04,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:04,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:04,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-15 16:05:04,719 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:04,720 INFO L85 PathProgramCache]: Analyzing trace with hash 837257435, now seen corresponding path program 113 times [2022-03-15 16:05:04,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:04,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952900724] [2022-03-15 16:05:04,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:04,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:04,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:04,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952900724] [2022-03-15 16:05:04,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952900724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:04,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:04,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:04,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812770276] [2022-03-15 16:05:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:04,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:04,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:04,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:04,967 INFO L87 Difference]: Start difference. First operand 5710 states and 19898 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:06,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:06,300 INFO L93 Difference]: Finished difference Result 6849 states and 23579 transitions. [2022-03-15 16:05:06,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 16:05:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:06,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:06,316 INFO L225 Difference]: With dead ends: 6849 [2022-03-15 16:05:06,316 INFO L226 Difference]: Without dead ends: 6760 [2022-03-15 16:05:06,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=196, Invalid=1784, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 16:05:06,316 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 437 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:06,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 1304 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2708 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:06,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6760 states. [2022-03-15 16:05:06,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6760 to 5710. [2022-03-15 16:05:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 5709 states have (on average 3.4853739709231037) internal successors, (19898), 5709 states have internal predecessors, (19898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:06,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 19898 transitions. [2022-03-15 16:05:06,407 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 19898 transitions. Word has length 47 [2022-03-15 16:05:06,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:06,407 INFO L470 AbstractCegarLoop]: Abstraction has 5710 states and 19898 transitions. [2022-03-15 16:05:06,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 19898 transitions. [2022-03-15 16:05:06,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:06,415 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:06,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:06,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-15 16:05:06,416 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:06,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:06,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1271286781, now seen corresponding path program 114 times [2022-03-15 16:05:06,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:06,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079449671] [2022-03-15 16:05:06,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:06,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:06,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:06,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079449671] [2022-03-15 16:05:06,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079449671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:06,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:06,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:06,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854033933] [2022-03-15 16:05:06,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:06,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:06,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:06,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:06,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:06,684 INFO L87 Difference]: Start difference. First operand 5710 states and 19898 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:08,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:08,002 INFO L93 Difference]: Finished difference Result 6742 states and 23252 transitions. [2022-03-15 16:05:08,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:05:08,002 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:08,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:08,016 INFO L225 Difference]: With dead ends: 6742 [2022-03-15 16:05:08,016 INFO L226 Difference]: Without dead ends: 6613 [2022-03-15 16:05:08,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:05:08,016 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 388 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 2814 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:08,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1374 Invalid, 2840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2814 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2022-03-15 16:05:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5710. [2022-03-15 16:05:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 5709 states have (on average 3.484322998773866) internal successors, (19892), 5709 states have internal predecessors, (19892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:08,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 19892 transitions. [2022-03-15 16:05:08,102 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 19892 transitions. Word has length 47 [2022-03-15 16:05:08,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:08,102 INFO L470 AbstractCegarLoop]: Abstraction has 5710 states and 19892 transitions. [2022-03-15 16:05:08,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:08,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 19892 transitions. [2022-03-15 16:05:08,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:08,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:08,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:08,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-15 16:05:08,110 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:08,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash -514253669, now seen corresponding path program 115 times [2022-03-15 16:05:08,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:08,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885915087] [2022-03-15 16:05:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:08,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:08,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885915087] [2022-03-15 16:05:08,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885915087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:08,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:08,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:08,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451361154] [2022-03-15 16:05:08,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:08,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:08,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:08,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:08,340 INFO L87 Difference]: Start difference. First operand 5710 states and 19892 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:10,692 INFO L93 Difference]: Finished difference Result 8507 states and 29627 transitions. [2022-03-15 16:05:10,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 16:05:10,692 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:10,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:10,710 INFO L225 Difference]: With dead ends: 8507 [2022-03-15 16:05:10,710 INFO L226 Difference]: Without dead ends: 8370 [2022-03-15 16:05:10,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 831 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=324, Invalid=2982, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 16:05:10,711 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 536 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 4468 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 4537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:10,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [536 Valid, 2006 Invalid, 4537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4468 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 16:05:10,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2022-03-15 16:05:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 5756. [2022-03-15 16:05:10,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 5755 states have (on average 3.4799304952215464) internal successors, (20027), 5755 states have internal predecessors, (20027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 20027 transitions. [2022-03-15 16:05:10,813 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 20027 transitions. Word has length 47 [2022-03-15 16:05:10,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:10,813 INFO L470 AbstractCegarLoop]: Abstraction has 5756 states and 20027 transitions. [2022-03-15 16:05:10,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:10,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 20027 transitions. [2022-03-15 16:05:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:10,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:10,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:10,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-15 16:05:10,822 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:10,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash -527785091, now seen corresponding path program 116 times [2022-03-15 16:05:10,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:10,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400545892] [2022-03-15 16:05:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:10,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:11,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:11,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:11,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400545892] [2022-03-15 16:05:11,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400545892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:11,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:11,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:11,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437652831] [2022-03-15 16:05:11,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:11,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:11,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:11,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:11,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:11,065 INFO L87 Difference]: Start difference. First operand 5756 states and 20027 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:13,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:13,705 INFO L93 Difference]: Finished difference Result 9839 states and 34481 transitions. [2022-03-15 16:05:13,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-15 16:05:13,705 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:13,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:13,726 INFO L225 Difference]: With dead ends: 9839 [2022-03-15 16:05:13,727 INFO L226 Difference]: Without dead ends: 9750 [2022-03-15 16:05:13,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=396, Invalid=3636, Unknown=0, NotChecked=0, Total=4032 [2022-03-15 16:05:13,727 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 702 mSDsluCounter, 3674 mSDsCounter, 0 mSdLazyCounter, 4832 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 4930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:13,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [702 Valid, 2265 Invalid, 4930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4832 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:05:13,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9750 states. [2022-03-15 16:05:13,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9750 to 5760. [2022-03-15 16:05:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 5759 states have (on average 3.4789025872547317) internal successors, (20035), 5759 states have internal predecessors, (20035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:13,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 20035 transitions. [2022-03-15 16:05:13,837 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 20035 transitions. Word has length 47 [2022-03-15 16:05:13,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:13,837 INFO L470 AbstractCegarLoop]: Abstraction has 5760 states and 20035 transitions. [2022-03-15 16:05:13,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:13,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 20035 transitions. [2022-03-15 16:05:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:13,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:13,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:13,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-15 16:05:13,845 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:13,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:13,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1378436999, now seen corresponding path program 117 times [2022-03-15 16:05:13,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:13,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301181992] [2022-03-15 16:05:13,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:13,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:14,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:14,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301181992] [2022-03-15 16:05:14,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301181992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:14,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:14,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:14,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930386354] [2022-03-15 16:05:14,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:14,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:14,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:14,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:14,089 INFO L87 Difference]: Start difference. First operand 5760 states and 20035 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:16,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:16,832 INFO L93 Difference]: Finished difference Result 10426 states and 36871 transitions. [2022-03-15 16:05:16,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-15 16:05:16,833 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:16,857 INFO L225 Difference]: With dead ends: 10426 [2022-03-15 16:05:16,857 INFO L226 Difference]: Without dead ends: 10319 [2022-03-15 16:05:16,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=419, Invalid=4273, Unknown=0, NotChecked=0, Total=4692 [2022-03-15 16:05:16,858 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 740 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 5007 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 5100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 5007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:16,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 2494 Invalid, 5100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 5007 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:05:16,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10319 states. [2022-03-15 16:05:16,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10319 to 5718. [2022-03-15 16:05:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5718 states, 5717 states have (on average 3.48259576701067) internal successors, (19910), 5717 states have internal predecessors, (19910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:16,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5718 states to 5718 states and 19910 transitions. [2022-03-15 16:05:16,989 INFO L78 Accepts]: Start accepts. Automaton has 5718 states and 19910 transitions. Word has length 47 [2022-03-15 16:05:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:16,989 INFO L470 AbstractCegarLoop]: Abstraction has 5718 states and 19910 transitions. [2022-03-15 16:05:16,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5718 states and 19910 transitions. [2022-03-15 16:05:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:16,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:16,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:16,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-15 16:05:16,997 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:16,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:16,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1477803139, now seen corresponding path program 118 times [2022-03-15 16:05:16,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:16,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333045282] [2022-03-15 16:05:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:16,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:17,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:17,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333045282] [2022-03-15 16:05:17,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333045282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:17,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:17,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:17,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622231997] [2022-03-15 16:05:17,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:17,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:17,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:17,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:17,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:17,234 INFO L87 Difference]: Start difference. First operand 5718 states and 19910 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:18,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:18,697 INFO L93 Difference]: Finished difference Result 6910 states and 23771 transitions. [2022-03-15 16:05:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 16:05:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:18,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:18,714 INFO L225 Difference]: With dead ends: 6910 [2022-03-15 16:05:18,714 INFO L226 Difference]: Without dead ends: 6821 [2022-03-15 16:05:18,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:05:18,714 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 457 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:18,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1383 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2935 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:18,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6821 states. [2022-03-15 16:05:18,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6821 to 5720. [2022-03-15 16:05:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5719 states have (on average 3.4826018534708867) internal successors, (19917), 5719 states have internal predecessors, (19917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:18,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 19917 transitions. [2022-03-15 16:05:18,803 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 19917 transitions. Word has length 47 [2022-03-15 16:05:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:18,803 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 19917 transitions. [2022-03-15 16:05:18,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 19917 transitions. [2022-03-15 16:05:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:18,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:18,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:18,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-15 16:05:18,812 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:18,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:18,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1801464963, now seen corresponding path program 119 times [2022-03-15 16:05:18,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:18,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949101878] [2022-03-15 16:05:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:18,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:19,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:19,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949101878] [2022-03-15 16:05:19,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949101878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:19,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:19,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:19,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270173632] [2022-03-15 16:05:19,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:19,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:19,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:19,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:19,062 INFO L87 Difference]: Start difference. First operand 5720 states and 19917 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:20,463 INFO L93 Difference]: Finished difference Result 6902 states and 23743 transitions. [2022-03-15 16:05:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:05:20,463 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:20,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:20,478 INFO L225 Difference]: With dead ends: 6902 [2022-03-15 16:05:20,478 INFO L226 Difference]: Without dead ends: 6797 [2022-03-15 16:05:20,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=1790, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 16:05:20,478 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 438 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 2909 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:20,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1382 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2909 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:20,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2022-03-15 16:05:20,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 5720. [2022-03-15 16:05:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5719 states have (on average 3.482252141982864) internal successors, (19915), 5719 states have internal predecessors, (19915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 19915 transitions. [2022-03-15 16:05:20,568 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 19915 transitions. Word has length 47 [2022-03-15 16:05:20,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:20,568 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 19915 transitions. [2022-03-15 16:05:20,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 19915 transitions. [2022-03-15 16:05:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:20,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:20,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:20,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-15 16:05:20,578 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:20,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:20,578 INFO L85 PathProgramCache]: Analyzing trace with hash 868735899, now seen corresponding path program 120 times [2022-03-15 16:05:20,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:20,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275676117] [2022-03-15 16:05:20,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:20,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:20,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:20,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:20,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275676117] [2022-03-15 16:05:20,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275676117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:20,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:20,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:20,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824916814] [2022-03-15 16:05:20,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:20,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:20,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:20,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:20,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:20,826 INFO L87 Difference]: Start difference. First operand 5720 states and 19915 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:23,078 INFO L93 Difference]: Finished difference Result 8513 states and 29532 transitions. [2022-03-15 16:05:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 16:05:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:23,095 INFO L225 Difference]: With dead ends: 8513 [2022-03-15 16:05:23,095 INFO L226 Difference]: Without dead ends: 8424 [2022-03-15 16:05:23,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=315, Invalid=3107, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 16:05:23,096 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 539 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 4479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 4531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:23,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2390 Invalid, 4531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4479 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 16:05:23,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8424 states. [2022-03-15 16:05:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8424 to 5824. [2022-03-15 16:05:23,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5824 states, 5823 states have (on average 3.477760604499399) internal successors, (20251), 5823 states have internal predecessors, (20251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:23,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 20251 transitions. [2022-03-15 16:05:23,189 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 20251 transitions. Word has length 47 [2022-03-15 16:05:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:23,189 INFO L470 AbstractCegarLoop]: Abstraction has 5824 states and 20251 transitions. [2022-03-15 16:05:23,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:23,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 20251 transitions. [2022-03-15 16:05:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:23,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:23,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:23,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-15 16:05:23,198 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:23,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:23,198 INFO L85 PathProgramCache]: Analyzing trace with hash 93618297, now seen corresponding path program 121 times [2022-03-15 16:05:23,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:23,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871548084] [2022-03-15 16:05:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:23,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:23,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:23,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871548084] [2022-03-15 16:05:23,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871548084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:23,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:23,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:23,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441330204] [2022-03-15 16:05:23,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:23,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:23,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:23,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:23,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:23,432 INFO L87 Difference]: Start difference. First operand 5824 states and 20251 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:25,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:25,254 INFO L93 Difference]: Finished difference Result 7385 states and 25458 transitions. [2022-03-15 16:05:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 16:05:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:25,270 INFO L225 Difference]: With dead ends: 7385 [2022-03-15 16:05:25,270 INFO L226 Difference]: Without dead ends: 7290 [2022-03-15 16:05:25,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=2219, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 16:05:25,271 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 454 mSDsluCounter, 3144 mSDsCounter, 0 mSdLazyCounter, 3589 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 3627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:25,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 1740 Invalid, 3627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3589 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:05:25,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7290 states. [2022-03-15 16:05:25,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7290 to 5804. [2022-03-15 16:05:25,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5804 states, 5803 states have (on average 3.4821643977253145) internal successors, (20207), 5803 states have internal predecessors, (20207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:25,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5804 states to 5804 states and 20207 transitions. [2022-03-15 16:05:25,367 INFO L78 Accepts]: Start accepts. Automaton has 5804 states and 20207 transitions. Word has length 47 [2022-03-15 16:05:25,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:25,367 INFO L470 AbstractCegarLoop]: Abstraction has 5804 states and 20207 transitions. [2022-03-15 16:05:25,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:25,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5804 states and 20207 transitions. [2022-03-15 16:05:25,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:25,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:25,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:25,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-15 16:05:25,376 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:25,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:25,376 INFO L85 PathProgramCache]: Analyzing trace with hash 392509975, now seen corresponding path program 122 times [2022-03-15 16:05:25,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:25,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073906384] [2022-03-15 16:05:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:25,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:25,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:25,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073906384] [2022-03-15 16:05:25,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073906384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:25,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:25,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:25,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643965267] [2022-03-15 16:05:25,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:25,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:25,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:25,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:25,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:25,615 INFO L87 Difference]: Start difference. First operand 5804 states and 20207 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:26,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:26,958 INFO L93 Difference]: Finished difference Result 6867 states and 23666 transitions. [2022-03-15 16:05:26,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:05:26,959 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:26,972 INFO L225 Difference]: With dead ends: 6867 [2022-03-15 16:05:26,972 INFO L226 Difference]: Without dead ends: 6770 [2022-03-15 16:05:26,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=1636, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:05:26,973 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 390 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:26,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1343 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6770 states. [2022-03-15 16:05:27,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6770 to 5818. [2022-03-15 16:05:27,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5817 states have (on average 3.4784253051401066) internal successors, (20234), 5817 states have internal predecessors, (20234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 20234 transitions. [2022-03-15 16:05:27,061 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 20234 transitions. Word has length 47 [2022-03-15 16:05:27,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:27,061 INFO L470 AbstractCegarLoop]: Abstraction has 5818 states and 20234 transitions. [2022-03-15 16:05:27,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:27,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 20234 transitions. [2022-03-15 16:05:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:27,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:27,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:27,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-15 16:05:27,070 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:27,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:27,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1332910535, now seen corresponding path program 123 times [2022-03-15 16:05:27,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:27,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283916559] [2022-03-15 16:05:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:27,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:27,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:27,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283916559] [2022-03-15 16:05:27,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283916559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:27,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:27,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:27,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453117284] [2022-03-15 16:05:27,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:27,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:27,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:27,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:27,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:27,310 INFO L87 Difference]: Start difference. First operand 5818 states and 20234 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:28,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:28,644 INFO L93 Difference]: Finished difference Result 6843 states and 23576 transitions. [2022-03-15 16:05:28,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:05:28,645 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:28,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:28,659 INFO L225 Difference]: With dead ends: 6843 [2022-03-15 16:05:28,660 INFO L226 Difference]: Without dead ends: 6738 [2022-03-15 16:05:28,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=1636, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:05:28,660 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 383 mSDsluCounter, 2537 mSDsCounter, 0 mSdLazyCounter, 2831 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 2856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:28,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1371 Invalid, 2856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2831 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6738 states. [2022-03-15 16:05:28,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6738 to 5804. [2022-03-15 16:05:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5804 states, 5803 states have (on average 3.481130449767362) internal successors, (20201), 5803 states have internal predecessors, (20201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5804 states to 5804 states and 20201 transitions. [2022-03-15 16:05:28,755 INFO L78 Accepts]: Start accepts. Automaton has 5804 states and 20201 transitions. Word has length 47 [2022-03-15 16:05:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:28,755 INFO L470 AbstractCegarLoop]: Abstraction has 5804 states and 20201 transitions. [2022-03-15 16:05:28,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5804 states and 20201 transitions. [2022-03-15 16:05:28,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:28,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:28,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:28,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-15 16:05:28,764 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:28,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash 986657209, now seen corresponding path program 124 times [2022-03-15 16:05:28,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:28,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306383864] [2022-03-15 16:05:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:28,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:29,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:29,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306383864] [2022-03-15 16:05:29,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306383864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:29,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:29,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:29,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803697481] [2022-03-15 16:05:29,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:29,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:29,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:29,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:29,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:29,027 INFO L87 Difference]: Start difference. First operand 5804 states and 20201 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:30,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:30,413 INFO L93 Difference]: Finished difference Result 6770 states and 23436 transitions. [2022-03-15 16:05:30,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 16:05:30,414 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:30,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:30,428 INFO L225 Difference]: With dead ends: 6770 [2022-03-15 16:05:30,428 INFO L226 Difference]: Without dead ends: 6681 [2022-03-15 16:05:30,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=1950, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 16:05:30,428 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 502 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:30,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 1288 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:30,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2022-03-15 16:05:30,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 5808. [2022-03-15 16:05:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5808 states, 5807 states have (on average 3.481143447563286) internal successors, (20215), 5807 states have internal predecessors, (20215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:30,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 20215 transitions. [2022-03-15 16:05:30,543 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 20215 transitions. Word has length 47 [2022-03-15 16:05:30,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:30,543 INFO L470 AbstractCegarLoop]: Abstraction has 5808 states and 20215 transitions. [2022-03-15 16:05:30,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:30,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 20215 transitions. [2022-03-15 16:05:30,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:30,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:30,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:30,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-15 16:05:30,552 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:30,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:30,552 INFO L85 PathProgramCache]: Analyzing trace with hash 662995385, now seen corresponding path program 125 times [2022-03-15 16:05:30,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:30,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565983037] [2022-03-15 16:05:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:30,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:30,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:30,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565983037] [2022-03-15 16:05:30,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565983037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:30,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:30,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:30,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951855159] [2022-03-15 16:05:30,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:30,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:30,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:30,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:30,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:30,801 INFO L87 Difference]: Start difference. First operand 5808 states and 20215 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:32,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:32,123 INFO L93 Difference]: Finished difference Result 6762 states and 23408 transitions. [2022-03-15 16:05:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:05:32,124 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:32,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:32,138 INFO L225 Difference]: With dead ends: 6762 [2022-03-15 16:05:32,138 INFO L226 Difference]: Without dead ends: 6657 [2022-03-15 16:05:32,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=1780, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 16:05:32,139 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 485 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:32,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 1206 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:32,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6657 states. [2022-03-15 16:05:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6657 to 5824. [2022-03-15 16:05:32,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5824 states, 5823 states have (on average 3.47982139790486) internal successors, (20263), 5823 states have internal predecessors, (20263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:32,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 20263 transitions. [2022-03-15 16:05:32,236 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 20263 transitions. Word has length 47 [2022-03-15 16:05:32,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:32,236 INFO L470 AbstractCegarLoop]: Abstraction has 5824 states and 20263 transitions. [2022-03-15 16:05:32,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 20263 transitions. [2022-03-15 16:05:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:32,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:32,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:32,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-15 16:05:32,246 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:32,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:32,247 INFO L85 PathProgramCache]: Analyzing trace with hash 719106839, now seen corresponding path program 126 times [2022-03-15 16:05:32,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:32,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619426179] [2022-03-15 16:05:32,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:32,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:32,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:32,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:32,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619426179] [2022-03-15 16:05:32,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619426179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:32,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:32,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:32,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816733214] [2022-03-15 16:05:32,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:32,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:32,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:32,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:32,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:32,499 INFO L87 Difference]: Start difference. First operand 5824 states and 20263 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:33,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:33,880 INFO L93 Difference]: Finished difference Result 6731 states and 23345 transitions. [2022-03-15 16:05:33,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 16:05:33,880 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:33,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:33,895 INFO L225 Difference]: With dead ends: 6731 [2022-03-15 16:05:33,895 INFO L226 Difference]: Without dead ends: 6570 [2022-03-15 16:05:33,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 16:05:33,895 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 472 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2701 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:33,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 1231 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2701 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:33,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6570 states. [2022-03-15 16:05:33,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6570 to 5808. [2022-03-15 16:05:33,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5808 states, 5807 states have (on average 3.480454623729981) internal successors, (20211), 5807 states have internal predecessors, (20211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 20211 transitions. [2022-03-15 16:05:33,981 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 20211 transitions. Word has length 47 [2022-03-15 16:05:33,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:33,981 INFO L470 AbstractCegarLoop]: Abstraction has 5808 states and 20211 transitions. [2022-03-15 16:05:33,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:33,981 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 20211 transitions. [2022-03-15 16:05:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:33,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:33,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:33,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-15 16:05:33,990 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:33,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:33,990 INFO L85 PathProgramCache]: Analyzing trace with hash 869165467, now seen corresponding path program 127 times [2022-03-15 16:05:33,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:33,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740521601] [2022-03-15 16:05:33,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:33,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:34,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:34,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740521601] [2022-03-15 16:05:34,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740521601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:34,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:34,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:34,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036629353] [2022-03-15 16:05:34,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:34,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:34,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:34,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:34,227 INFO L87 Difference]: Start difference. First operand 5808 states and 20211 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:35,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:35,632 INFO L93 Difference]: Finished difference Result 6910 states and 23799 transitions. [2022-03-15 16:05:35,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 16:05:35,633 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:35,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:35,648 INFO L225 Difference]: With dead ends: 6910 [2022-03-15 16:05:35,648 INFO L226 Difference]: Without dead ends: 6821 [2022-03-15 16:05:35,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 16:05:35,648 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 487 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 2845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:35,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 1293 Invalid, 2845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:35,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6821 states. [2022-03-15 16:05:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6821 to 5810. [2022-03-15 16:05:35,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5809 states have (on average 3.480461353072818) internal successors, (20218), 5809 states have internal predecessors, (20218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:35,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 20218 transitions. [2022-03-15 16:05:35,737 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 20218 transitions. Word has length 47 [2022-03-15 16:05:35,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:35,737 INFO L470 AbstractCegarLoop]: Abstraction has 5810 states and 20218 transitions. [2022-03-15 16:05:35,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:35,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 20218 transitions. [2022-03-15 16:05:35,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:35,746 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:35,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:35,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-15 16:05:35,746 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:35,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:35,747 INFO L85 PathProgramCache]: Analyzing trace with hash 545503643, now seen corresponding path program 128 times [2022-03-15 16:05:35,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:35,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724420251] [2022-03-15 16:05:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:35,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:35,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:35,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724420251] [2022-03-15 16:05:35,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724420251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:35,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:35,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:35,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402746585] [2022-03-15 16:05:35,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:35,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:35,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:35,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:35,983 INFO L87 Difference]: Start difference. First operand 5810 states and 20218 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:37,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:37,274 INFO L93 Difference]: Finished difference Result 6902 states and 23771 transitions. [2022-03-15 16:05:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 16:05:37,275 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:37,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:37,290 INFO L225 Difference]: With dead ends: 6902 [2022-03-15 16:05:37,291 INFO L226 Difference]: Without dead ends: 6797 [2022-03-15 16:05:37,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1785, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 16:05:37,291 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 476 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:37,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1165 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:37,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2022-03-15 16:05:37,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 5810. [2022-03-15 16:05:37,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5809 states have (on average 3.4801170597348943) internal successors, (20216), 5809 states have internal predecessors, (20216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:37,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 20216 transitions. [2022-03-15 16:05:37,396 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 20216 transitions. Word has length 47 [2022-03-15 16:05:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:37,396 INFO L470 AbstractCegarLoop]: Abstraction has 5810 states and 20216 transitions. [2022-03-15 16:05:37,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 20216 transitions. [2022-03-15 16:05:37,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:37,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:37,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:37,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-15 16:05:37,405 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:37,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1079262791, now seen corresponding path program 129 times [2022-03-15 16:05:37,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:37,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630012801] [2022-03-15 16:05:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:37,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:37,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:37,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630012801] [2022-03-15 16:05:37,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630012801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:37,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:37,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:37,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072537223] [2022-03-15 16:05:37,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:37,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:37,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:37,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:37,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:37,639 INFO L87 Difference]: Start difference. First operand 5810 states and 20216 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:39,744 INFO L93 Difference]: Finished difference Result 7949 states and 27657 transitions. [2022-03-15 16:05:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 16:05:39,744 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:39,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:39,789 INFO L225 Difference]: With dead ends: 7949 [2022-03-15 16:05:39,789 INFO L226 Difference]: Without dead ends: 7844 [2022-03-15 16:05:39,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=310, Invalid=3112, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 16:05:39,790 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 586 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 3954 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 4012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:39,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 2141 Invalid, 4012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3954 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 16:05:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2022-03-15 16:05:39,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 5756. [2022-03-15 16:05:39,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 5755 states have (on average 3.4802780191138143) internal successors, (20029), 5755 states have internal predecessors, (20029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:39,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 20029 transitions. [2022-03-15 16:05:39,883 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 20029 transitions. Word has length 47 [2022-03-15 16:05:39,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:39,883 INFO L470 AbstractCegarLoop]: Abstraction has 5756 states and 20029 transitions. [2022-03-15 16:05:39,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:39,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 20029 transitions. [2022-03-15 16:05:39,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:39,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:39,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:39,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-15 16:05:39,892 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:39,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:39,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1854380393, now seen corresponding path program 130 times [2022-03-15 16:05:39,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:39,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751128032] [2022-03-15 16:05:39,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:39,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:40,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:40,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751128032] [2022-03-15 16:05:40,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751128032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:40,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:40,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:40,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478667324] [2022-03-15 16:05:40,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:40,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:40,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:40,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:40,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:40,136 INFO L87 Difference]: Start difference. First operand 5756 states and 20029 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:41,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:41,899 INFO L93 Difference]: Finished difference Result 7705 states and 26697 transitions. [2022-03-15 16:05:41,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 16:05:41,899 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:41,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:41,916 INFO L225 Difference]: With dead ends: 7705 [2022-03-15 16:05:41,916 INFO L226 Difference]: Without dead ends: 7610 [2022-03-15 16:05:41,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=2498, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 16:05:41,917 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 529 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:41,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 1850 Invalid, 3586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3544 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 16:05:41,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2022-03-15 16:05:41,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 5724. [2022-03-15 16:05:42,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 5723 states have (on average 3.482264546566486) internal successors, (19929), 5723 states have internal predecessors, (19929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 19929 transitions. [2022-03-15 16:05:42,013 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 19929 transitions. Word has length 47 [2022-03-15 16:05:42,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:42,013 INFO L470 AbstractCegarLoop]: Abstraction has 5724 states and 19929 transitions. [2022-03-15 16:05:42,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:42,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 19929 transitions. [2022-03-15 16:05:42,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:42,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:42,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:42,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-15 16:05:42,022 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:42,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1555488715, now seen corresponding path program 131 times [2022-03-15 16:05:42,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:42,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021233778] [2022-03-15 16:05:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:42,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:42,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:42,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021233778] [2022-03-15 16:05:42,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021233778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:42,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:42,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:42,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066792625] [2022-03-15 16:05:42,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:42,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:42,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:42,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:42,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:42,270 INFO L87 Difference]: Start difference. First operand 5724 states and 19929 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:43,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:43,590 INFO L93 Difference]: Finished difference Result 6814 states and 23479 transitions. [2022-03-15 16:05:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 16:05:43,590 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:43,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:43,604 INFO L225 Difference]: With dead ends: 6814 [2022-03-15 16:05:43,605 INFO L226 Difference]: Without dead ends: 6717 [2022-03-15 16:05:43,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=1709, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:05:43,605 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 452 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 2713 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:43,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1220 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2713 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:43,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2022-03-15 16:05:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 5732. [2022-03-15 16:05:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5732 states, 5731 states have (on average 3.480544407607747) internal successors, (19947), 5731 states have internal predecessors, (19947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:43,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5732 states to 5732 states and 19947 transitions. [2022-03-15 16:05:43,691 INFO L78 Accepts]: Start accepts. Automaton has 5732 states and 19947 transitions. Word has length 47 [2022-03-15 16:05:43,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:43,691 INFO L470 AbstractCegarLoop]: Abstraction has 5732 states and 19947 transitions. [2022-03-15 16:05:43,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:43,691 INFO L276 IsEmpty]: Start isEmpty. Operand 5732 states and 19947 transitions. [2022-03-15 16:05:43,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:43,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:43,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:43,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-15 16:05:43,700 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:43,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:43,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1014058071, now seen corresponding path program 132 times [2022-03-15 16:05:43,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:43,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717969310] [2022-03-15 16:05:43,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:43,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:43,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:43,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717969310] [2022-03-15 16:05:43,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717969310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:43,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:43,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:43,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642163460] [2022-03-15 16:05:43,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:43,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:43,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:43,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:43,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:43,954 INFO L87 Difference]: Start difference. First operand 5732 states and 19947 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:45,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:45,233 INFO L93 Difference]: Finished difference Result 6790 states and 23389 transitions. [2022-03-15 16:05:45,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 16:05:45,233 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:45,247 INFO L225 Difference]: With dead ends: 6790 [2022-03-15 16:05:45,247 INFO L226 Difference]: Without dead ends: 6691 [2022-03-15 16:05:45,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=1633, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 16:05:45,248 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 412 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:45,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1253 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 16:05:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-03-15 16:05:45,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 5724. [2022-03-15 16:05:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 5723 states have (on average 3.481915079503757) internal successors, (19927), 5723 states have internal predecessors, (19927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 19927 transitions. [2022-03-15 16:05:45,327 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 19927 transitions. Word has length 47 [2022-03-15 16:05:45,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:45,328 INFO L470 AbstractCegarLoop]: Abstraction has 5724 states and 19927 transitions. [2022-03-15 16:05:45,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 19927 transitions. [2022-03-15 16:05:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:45,336 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:45,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:45,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-15 16:05:45,336 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:45,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2089802635, now seen corresponding path program 133 times [2022-03-15 16:05:45,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:45,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193965297] [2022-03-15 16:05:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:45,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:45,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:45,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193965297] [2022-03-15 16:05:45,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193965297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:45,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:45,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:45,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219845651] [2022-03-15 16:05:45,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:45,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:45,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:45,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:45,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:45,583 INFO L87 Difference]: Start difference. First operand 5724 states and 19927 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:46,845 INFO L93 Difference]: Finished difference Result 6545 states and 22710 transitions. [2022-03-15 16:05:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 16:05:46,845 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:46,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:46,861 INFO L225 Difference]: With dead ends: 6545 [2022-03-15 16:05:46,861 INFO L226 Difference]: Without dead ends: 6400 [2022-03-15 16:05:46,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=185, Invalid=1707, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 16:05:46,861 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 410 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 2646 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:46,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1213 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2646 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2022-03-15 16:05:46,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 5736. [2022-03-15 16:05:46,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5735 states have (on average 3.479860505666957) internal successors, (19957), 5735 states have internal predecessors, (19957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 19957 transitions. [2022-03-15 16:05:46,948 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 19957 transitions. Word has length 47 [2022-03-15 16:05:46,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:46,949 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 19957 transitions. [2022-03-15 16:05:46,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:46,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 19957 transitions. [2022-03-15 16:05:46,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:46,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:46,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:46,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-15 16:05:46,957 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:46,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:46,957 INFO L85 PathProgramCache]: Analyzing trace with hash 146349929, now seen corresponding path program 134 times [2022-03-15 16:05:46,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:46,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635774824] [2022-03-15 16:05:46,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:46,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:47,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:47,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635774824] [2022-03-15 16:05:47,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635774824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:47,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:47,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:47,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779402299] [2022-03-15 16:05:47,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:47,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:47,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:47,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:47,198 INFO L87 Difference]: Start difference. First operand 5736 states and 19957 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:48,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:48,430 INFO L93 Difference]: Finished difference Result 6665 states and 23013 transitions. [2022-03-15 16:05:48,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:05:48,430 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:48,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:48,470 INFO L225 Difference]: With dead ends: 6665 [2022-03-15 16:05:48,470 INFO L226 Difference]: Without dead ends: 6568 [2022-03-15 16:05:48,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=1555, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 16:05:48,470 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 407 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:48,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1235 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:48,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6568 states. [2022-03-15 16:05:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6568 to 5742. [2022-03-15 16:05:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5741 states have (on average 3.4788364396446614) internal successors, (19972), 5741 states have internal predecessors, (19972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:48,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 19972 transitions. [2022-03-15 16:05:48,550 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 19972 transitions. Word has length 47 [2022-03-15 16:05:48,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:48,550 INFO L470 AbstractCegarLoop]: Abstraction has 5742 states and 19972 transitions. [2022-03-15 16:05:48,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:48,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 19972 transitions. [2022-03-15 16:05:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:48,559 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:48,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:48,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-15 16:05:48,559 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:48,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:48,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1579070581, now seen corresponding path program 135 times [2022-03-15 16:05:48,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:48,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409772180] [2022-03-15 16:05:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:48,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:48,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:48,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409772180] [2022-03-15 16:05:48,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409772180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:48,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:48,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:05:48,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183142640] [2022-03-15 16:05:48,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:48,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:05:48,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:48,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:05:48,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:05:48,797 INFO L87 Difference]: Start difference. First operand 5742 states and 19972 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:50,010 INFO L93 Difference]: Finished difference Result 6566 states and 22708 transitions. [2022-03-15 16:05:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-15 16:05:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:50,024 INFO L225 Difference]: With dead ends: 6566 [2022-03-15 16:05:50,024 INFO L226 Difference]: Without dead ends: 6437 [2022-03-15 16:05:50,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=1482, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:05:50,025 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 361 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 2680 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:50,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1251 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2680 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:50,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2022-03-15 16:05:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 5704. [2022-03-15 16:05:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.4864106610555847) internal successors, (19883), 5703 states have internal predecessors, (19883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19883 transitions. [2022-03-15 16:05:50,125 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19883 transitions. Word has length 47 [2022-03-15 16:05:50,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:50,125 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19883 transitions. [2022-03-15 16:05:50,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:50,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19883 transitions. [2022-03-15 16:05:50,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:50,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:50,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:50,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-15 16:05:50,134 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash 252406523, now seen corresponding path program 136 times [2022-03-15 16:05:50,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:50,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190709238] [2022-03-15 16:05:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:50,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:50,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:50,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190709238] [2022-03-15 16:05:50,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190709238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:50,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:50,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:05:50,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102991113] [2022-03-15 16:05:50,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:50,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:05:50,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:50,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:05:50,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:05:50,347 INFO L87 Difference]: Start difference. First operand 5704 states and 19883 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:51,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:51,395 INFO L93 Difference]: Finished difference Result 6483 states and 22479 transitions. [2022-03-15 16:05:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 16:05:51,395 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:51,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:51,409 INFO L225 Difference]: With dead ends: 6483 [2022-03-15 16:05:51,409 INFO L226 Difference]: Without dead ends: 6346 [2022-03-15 16:05:51,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=1255, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 16:05:51,410 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 335 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:51,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1062 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2185 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:05:51,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6346 states. [2022-03-15 16:05:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 5720. [2022-03-15 16:05:51,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5719 states have (on average 3.485049833887043) internal successors, (19931), 5719 states have internal predecessors, (19931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:51,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 19931 transitions. [2022-03-15 16:05:51,495 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 19931 transitions. Word has length 47 [2022-03-15 16:05:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:51,495 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 19931 transitions. [2022-03-15 16:05:51,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 19931 transitions. [2022-03-15 16:05:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:51,504 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:51,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:51,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-15 16:05:51,504 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:51,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:51,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1770102745, now seen corresponding path program 137 times [2022-03-15 16:05:51,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:51,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082047840] [2022-03-15 16:05:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:51,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:51,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:51,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082047840] [2022-03-15 16:05:51,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082047840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:51,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:51,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:51,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308900091] [2022-03-15 16:05:51,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:51,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:51,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:51,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:51,733 INFO L87 Difference]: Start difference. First operand 5720 states and 19931 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:52,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:52,919 INFO L93 Difference]: Finished difference Result 6542 states and 22638 transitions. [2022-03-15 16:05:52,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 16:05:52,919 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:52,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:52,933 INFO L225 Difference]: With dead ends: 6542 [2022-03-15 16:05:52,934 INFO L226 Difference]: Without dead ends: 6453 [2022-03-15 16:05:52,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=1473, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:05:52,934 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 401 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:52,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 1112 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:52,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6453 states. [2022-03-15 16:05:53,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6453 to 5784. [2022-03-15 16:05:53,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.483831921148193) internal successors, (20147), 5783 states have internal predecessors, (20147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:53,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20147 transitions. [2022-03-15 16:05:53,023 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20147 transitions. Word has length 47 [2022-03-15 16:05:53,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:53,023 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20147 transitions. [2022-03-15 16:05:53,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20147 transitions. [2022-03-15 16:05:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:53,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:53,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:53,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-15 16:05:53,033 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:53,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash -2090835205, now seen corresponding path program 138 times [2022-03-15 16:05:53,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:53,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334818909] [2022-03-15 16:05:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:53,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:53,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:53,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334818909] [2022-03-15 16:05:53,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334818909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:53,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:53,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:53,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928397291] [2022-03-15 16:05:53,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:53,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:53,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:53,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:53,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:53,269 INFO L87 Difference]: Start difference. First operand 5784 states and 20147 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:54,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:54,406 INFO L93 Difference]: Finished difference Result 6435 states and 22311 transitions. [2022-03-15 16:05:54,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 16:05:54,406 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:54,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:54,421 INFO L225 Difference]: With dead ends: 6435 [2022-03-15 16:05:54,421 INFO L226 Difference]: Without dead ends: 6306 [2022-03-15 16:05:54,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=1332, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:05:54,421 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 337 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:54,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1094 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:54,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2022-03-15 16:05:54,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 5784. [2022-03-15 16:05:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.4796818260418467) internal successors, (20123), 5783 states have internal predecessors, (20123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:54,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20123 transitions. [2022-03-15 16:05:54,508 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20123 transitions. Word has length 47 [2022-03-15 16:05:54,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:54,508 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20123 transitions. [2022-03-15 16:05:54,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:54,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20123 transitions. [2022-03-15 16:05:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:54,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:54,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:54,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-15 16:05:54,517 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:54,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:54,518 INFO L85 PathProgramCache]: Analyzing trace with hash -529401719, now seen corresponding path program 139 times [2022-03-15 16:05:54,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:54,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897742870] [2022-03-15 16:05:54,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:54,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:54,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:54,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:54,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897742870] [2022-03-15 16:05:54,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897742870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:54,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:54,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:54,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420268835] [2022-03-15 16:05:54,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:54,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:54,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:54,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:54,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:54,740 INFO L87 Difference]: Start difference. First operand 5784 states and 20123 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:55,947 INFO L93 Difference]: Finished difference Result 6494 states and 22478 transitions. [2022-03-15 16:05:55,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 16:05:55,947 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:55,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:55,962 INFO L225 Difference]: With dead ends: 6494 [2022-03-15 16:05:55,962 INFO L226 Difference]: Without dead ends: 6405 [2022-03-15 16:05:55,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 16:05:55,962 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 410 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:55,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1163 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 16:05:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-03-15 16:05:56,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 5784. [2022-03-15 16:05:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.4796818260418467) internal successors, (20123), 5783 states have internal predecessors, (20123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20123 transitions. [2022-03-15 16:05:56,055 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20123 transitions. Word has length 47 [2022-03-15 16:05:56,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:56,055 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20123 transitions. [2022-03-15 16:05:56,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:56,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20123 transitions. [2022-03-15 16:05:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:56,065 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:56,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:56,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-15 16:05:56,065 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:56,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:56,065 INFO L85 PathProgramCache]: Analyzing trace with hash -95372373, now seen corresponding path program 140 times [2022-03-15 16:05:56,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:56,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563389838] [2022-03-15 16:05:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:56,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:56,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:56,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563389838] [2022-03-15 16:05:56,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563389838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:56,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:56,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:56,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193407221] [2022-03-15 16:05:56,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:56,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:56,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:56,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:56,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:56,288 INFO L87 Difference]: Start difference. First operand 5784 states and 20123 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:57,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:57,412 INFO L93 Difference]: Finished difference Result 6486 states and 22450 transitions. [2022-03-15 16:05:57,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 16:05:57,413 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:57,427 INFO L225 Difference]: With dead ends: 6486 [2022-03-15 16:05:57,427 INFO L226 Difference]: Without dead ends: 6381 [2022-03-15 16:05:57,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=1328, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 16:05:57,428 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 390 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:57,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1089 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:05:57,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6381 states. [2022-03-15 16:05:57,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6381 to 5800. [2022-03-15 16:05:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 5799 states have (on average 3.4783583376444214) internal successors, (20171), 5799 states have internal predecessors, (20171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:57,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 20171 transitions. [2022-03-15 16:05:57,522 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 20171 transitions. Word has length 47 [2022-03-15 16:05:57,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:57,522 INFO L470 AbstractCegarLoop]: Abstraction has 5800 states and 20171 transitions. [2022-03-15 16:05:57,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:57,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 20171 transitions. [2022-03-15 16:05:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:57,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:57,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:57,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-15 16:05:57,531 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:57,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1177561335, now seen corresponding path program 141 times [2022-03-15 16:05:57,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:57,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781684008] [2022-03-15 16:05:57,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:57,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:57,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:57,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781684008] [2022-03-15 16:05:57,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781684008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:57,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:57,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:57,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122648283] [2022-03-15 16:05:57,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:57,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:57,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:57,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:57,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:57,754 INFO L87 Difference]: Start difference. First operand 5800 states and 20171 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:58,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:05:58,830 INFO L93 Difference]: Finished difference Result 6379 states and 22123 transitions. [2022-03-15 16:05:58,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 16:05:58,830 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:05:58,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:05:58,843 INFO L225 Difference]: With dead ends: 6379 [2022-03-15 16:05:58,843 INFO L226 Difference]: Without dead ends: 6110 [2022-03-15 16:05:58,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=1190, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 16:05:58,843 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 329 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:05:58,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 1095 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:05:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6110 states. [2022-03-15 16:05:58,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6110 to 5676. [2022-03-15 16:05:58,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5676 states, 5675 states have (on average 3.490925110132159) internal successors, (19811), 5675 states have internal predecessors, (19811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5676 states to 5676 states and 19811 transitions. [2022-03-15 16:05:58,930 INFO L78 Accepts]: Start accepts. Automaton has 5676 states and 19811 transitions. Word has length 47 [2022-03-15 16:05:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:05:58,931 INFO L470 AbstractCegarLoop]: Abstraction has 5676 states and 19811 transitions. [2022-03-15 16:05:58,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:05:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5676 states and 19811 transitions. [2022-03-15 16:05:58,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:05:58,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:05:58,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:05:58,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-15 16:05:58,939 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:05:58,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:05:58,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1450016701, now seen corresponding path program 142 times [2022-03-15 16:05:58,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:05:58,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916069976] [2022-03-15 16:05:58,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:05:58,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:05:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:05:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:05:59,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:05:59,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916069976] [2022-03-15 16:05:59,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916069976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:05:59,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:05:59,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:05:59,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898343939] [2022-03-15 16:05:59,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:05:59,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:05:59,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:05:59,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:05:59,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:05:59,160 INFO L87 Difference]: Start difference. First operand 5676 states and 19811 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:01,963 INFO L93 Difference]: Finished difference Result 9641 states and 33896 transitions. [2022-03-15 16:06:01,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-15 16:06:01,963 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:01,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:01,985 INFO L225 Difference]: With dead ends: 9641 [2022-03-15 16:06:01,985 INFO L226 Difference]: Without dead ends: 9414 [2022-03-15 16:06:01,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=474, Invalid=4496, Unknown=0, NotChecked=0, Total=4970 [2022-03-15 16:06:01,986 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 722 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:01,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 2689 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4981 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:06:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9414 states. [2022-03-15 16:06:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9414 to 5851. [2022-03-15 16:06:02,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5851 states, 5850 states have (on average 3.4905982905982906) internal successors, (20420), 5850 states have internal predecessors, (20420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:02,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5851 states to 5851 states and 20420 transitions. [2022-03-15 16:06:02,094 INFO L78 Accepts]: Start accepts. Automaton has 5851 states and 20420 transitions. Word has length 47 [2022-03-15 16:06:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:02,094 INFO L470 AbstractCegarLoop]: Abstraction has 5851 states and 20420 transitions. [2022-03-15 16:06:02,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5851 states and 20420 transitions. [2022-03-15 16:06:02,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:02,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:02,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:02,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-15 16:06:02,103 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:02,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:02,103 INFO L85 PathProgramCache]: Analyzing trace with hash 99268097, now seen corresponding path program 143 times [2022-03-15 16:06:02,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:02,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088719441] [2022-03-15 16:06:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:02,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:02,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:02,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088719441] [2022-03-15 16:06:02,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088719441] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:02,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:02,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:06:02,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465534115] [2022-03-15 16:06:02,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:02,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:06:02,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:02,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:06:02,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:06:02,326 INFO L87 Difference]: Start difference. First operand 5851 states and 20420 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:05,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:05,910 INFO L93 Difference]: Finished difference Result 11528 states and 40542 transitions. [2022-03-15 16:06:05,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 16:06:05,910 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:05,934 INFO L225 Difference]: With dead ends: 11528 [2022-03-15 16:06:05,935 INFO L226 Difference]: Without dead ends: 11339 [2022-03-15 16:06:05,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2835 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=764, Invalid=7792, Unknown=0, NotChecked=0, Total=8556 [2022-03-15 16:06:05,936 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 939 mSDsluCounter, 4078 mSDsCounter, 0 mSdLazyCounter, 5244 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 5431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 5244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:05,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 2664 Invalid, 5431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 5244 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:06:05,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11339 states. [2022-03-15 16:06:06,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11339 to 6216. [2022-03-15 16:06:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6216 states, 6215 states have (on average 3.4989541432019307) internal successors, (21746), 6215 states have internal predecessors, (21746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6216 states to 6216 states and 21746 transitions. [2022-03-15 16:06:06,063 INFO L78 Accepts]: Start accepts. Automaton has 6216 states and 21746 transitions. Word has length 47 [2022-03-15 16:06:06,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:06,063 INFO L470 AbstractCegarLoop]: Abstraction has 6216 states and 21746 transitions. [2022-03-15 16:06:06,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 6216 states and 21746 transitions. [2022-03-15 16:06:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:06,073 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:06,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:06,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-15 16:06:06,073 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:06,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:06,073 INFO L85 PathProgramCache]: Analyzing trace with hash -751383811, now seen corresponding path program 144 times [2022-03-15 16:06:06,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:06,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117106911] [2022-03-15 16:06:06,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:06,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:06,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117106911] [2022-03-15 16:06:06,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117106911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:06,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:06,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:06:06,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006032695] [2022-03-15 16:06:06,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:06,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:06:06,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:06,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:06:06,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:06:06,321 INFO L87 Difference]: Start difference. First operand 6216 states and 21746 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:10,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:10,468 INFO L93 Difference]: Finished difference Result 13233 states and 46883 transitions. [2022-03-15 16:06:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-03-15 16:06:10,468 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:10,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:10,498 INFO L225 Difference]: With dead ends: 13233 [2022-03-15 16:06:10,499 INFO L226 Difference]: Without dead ends: 13030 [2022-03-15 16:06:10,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4235 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1007, Invalid=10983, Unknown=0, NotChecked=0, Total=11990 [2022-03-15 16:06:10,500 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 921 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 5977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:10,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 3151 Invalid, 5977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 16:06:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13030 states. [2022-03-15 16:06:10,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13030 to 6600. [2022-03-15 16:06:10,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6600 states, 6599 states have (on average 3.507804212759509) internal successors, (23148), 6599 states have internal predecessors, (23148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6600 states to 6600 states and 23148 transitions. [2022-03-15 16:06:10,638 INFO L78 Accepts]: Start accepts. Automaton has 6600 states and 23148 transitions. Word has length 47 [2022-03-15 16:06:10,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:10,639 INFO L470 AbstractCegarLoop]: Abstraction has 6600 states and 23148 transitions. [2022-03-15 16:06:10,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:10,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6600 states and 23148 transitions. [2022-03-15 16:06:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:10,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:10,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:10,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-15 16:06:10,649 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1424423741, now seen corresponding path program 145 times [2022-03-15 16:06:10,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:10,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678844435] [2022-03-15 16:06:10,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:10,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:10,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:10,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678844435] [2022-03-15 16:06:10,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678844435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:10,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:10,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:06:10,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461642484] [2022-03-15 16:06:10,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:10,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:06:10,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:10,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:06:10,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:06:10,862 INFO L87 Difference]: Start difference. First operand 6600 states and 23148 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:13,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:13,853 INFO L93 Difference]: Finished difference Result 11080 states and 38723 transitions. [2022-03-15 16:06:13,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-15 16:06:13,853 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:13,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:13,877 INFO L225 Difference]: With dead ends: 11080 [2022-03-15 16:06:13,877 INFO L226 Difference]: Without dead ends: 10843 [2022-03-15 16:06:13,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2084 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=605, Invalid=5875, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 16:06:13,878 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 797 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 4517 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 4642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 4517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:13,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [797 Valid, 2239 Invalid, 4642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 4517 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 16:06:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-03-15 16:06:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 7034. [2022-03-15 16:06:13,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 7033 states have (on average 3.5108772927626903) internal successors, (24692), 7033 states have internal predecessors, (24692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 24692 transitions. [2022-03-15 16:06:14,009 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 24692 transitions. Word has length 47 [2022-03-15 16:06:14,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:14,009 INFO L470 AbstractCegarLoop]: Abstraction has 7034 states and 24692 transitions. [2022-03-15 16:06:14,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:14,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 24692 transitions. [2022-03-15 16:06:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:14,021 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:14,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:14,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-15 16:06:14,021 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:14,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash -554450721, now seen corresponding path program 146 times [2022-03-15 16:06:14,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:14,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198918348] [2022-03-15 16:06:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:14,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:14,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:14,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:14,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198918348] [2022-03-15 16:06:14,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198918348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:14,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:14,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:06:14,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308826503] [2022-03-15 16:06:14,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:14,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:06:14,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:14,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:06:14,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:06:14,242 INFO L87 Difference]: Start difference. First operand 7034 states and 24692 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:17,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:17,902 INFO L93 Difference]: Finished difference Result 12694 states and 44788 transitions. [2022-03-15 16:06:17,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-15 16:06:17,903 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:17,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:17,930 INFO L225 Difference]: With dead ends: 12694 [2022-03-15 16:06:17,930 INFO L226 Difference]: Without dead ends: 12457 [2022-03-15 16:06:17,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3072 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=790, Invalid=8330, Unknown=0, NotChecked=0, Total=9120 [2022-03-15 16:06:17,930 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 947 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 5067 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 5274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 5067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:17,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 2558 Invalid, 5274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 5067 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:06:17,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12457 states. [2022-03-15 16:06:18,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12457 to 6946. [2022-03-15 16:06:18,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 6945 states have (on average 3.5128869690424764) internal successors, (24397), 6945 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:18,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 24397 transitions. [2022-03-15 16:06:18,057 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 24397 transitions. Word has length 47 [2022-03-15 16:06:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:18,057 INFO L470 AbstractCegarLoop]: Abstraction has 6946 states and 24397 transitions. [2022-03-15 16:06:18,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 24397 transitions. [2022-03-15 16:06:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:18,068 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:18,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:18,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-15 16:06:18,068 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:18,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1405102629, now seen corresponding path program 147 times [2022-03-15 16:06:18,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:18,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98924050] [2022-03-15 16:06:18,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:18,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:18,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:18,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98924050] [2022-03-15 16:06:18,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98924050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:18,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:18,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:06:18,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601098972] [2022-03-15 16:06:18,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:18,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:06:18,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:18,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:06:18,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:06:18,293 INFO L87 Difference]: Start difference. First operand 6946 states and 24397 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:21,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:21,949 INFO L93 Difference]: Finished difference Result 12797 states and 45311 transitions. [2022-03-15 16:06:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-03-15 16:06:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:21,984 INFO L225 Difference]: With dead ends: 12797 [2022-03-15 16:06:21,984 INFO L226 Difference]: Without dead ends: 12486 [2022-03-15 16:06:21,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2845 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=749, Invalid=7807, Unknown=0, NotChecked=0, Total=8556 [2022-03-15 16:06:21,986 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 863 mSDsluCounter, 4116 mSDsCounter, 0 mSdLazyCounter, 5530 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 5723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 5530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:21,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 2803 Invalid, 5723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 5530 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 16:06:22,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12486 states. [2022-03-15 16:06:22,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12486 to 6928. [2022-03-15 16:06:22,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 6927 states have (on average 3.5184062364660025) internal successors, (24372), 6927 states have internal predecessors, (24372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 24372 transitions. [2022-03-15 16:06:22,165 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 24372 transitions. Word has length 47 [2022-03-15 16:06:22,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:22,165 INFO L470 AbstractCegarLoop]: Abstraction has 6928 states and 24372 transitions. [2022-03-15 16:06:22,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 24372 transitions. [2022-03-15 16:06:22,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:22,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:22,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:22,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-15 16:06:22,176 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:22,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:22,177 INFO L85 PathProgramCache]: Analyzing trace with hash 881846205, now seen corresponding path program 148 times [2022-03-15 16:06:22,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:22,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407061754] [2022-03-15 16:06:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:22,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:22,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:22,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407061754] [2022-03-15 16:06:22,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407061754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:22,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:22,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:06:22,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242914410] [2022-03-15 16:06:22,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:22,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:06:22,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:06:22,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:06:22,410 INFO L87 Difference]: Start difference. First operand 6928 states and 24372 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:25,564 INFO L93 Difference]: Finished difference Result 11278 states and 39722 transitions. [2022-03-15 16:06:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-15 16:06:25,565 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:25,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:25,590 INFO L225 Difference]: With dead ends: 11278 [2022-03-15 16:06:25,590 INFO L226 Difference]: Without dead ends: 11151 [2022-03-15 16:06:25,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1873 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=561, Invalid=5759, Unknown=0, NotChecked=0, Total=6320 [2022-03-15 16:06:25,591 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 816 mSDsluCounter, 4575 mSDsCounter, 0 mSdLazyCounter, 5478 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 5578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 5478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:25,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 3076 Invalid, 5578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 5478 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 16:06:25,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11151 states. [2022-03-15 16:06:25,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11151 to 6942. [2022-03-15 16:06:25,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6942 states, 6941 states have (on average 3.5167843250252124) internal successors, (24410), 6941 states have internal predecessors, (24410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6942 states to 6942 states and 24410 transitions. [2022-03-15 16:06:25,726 INFO L78 Accepts]: Start accepts. Automaton has 6942 states and 24410 transitions. Word has length 47 [2022-03-15 16:06:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:25,726 INFO L470 AbstractCegarLoop]: Abstraction has 6942 states and 24410 transitions. [2022-03-15 16:06:25,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6942 states and 24410 transitions. [2022-03-15 16:06:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:25,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:25,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:25,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-15 16:06:25,738 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:25,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:25,738 INFO L85 PathProgramCache]: Analyzing trace with hash -468902399, now seen corresponding path program 149 times [2022-03-15 16:06:25,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:25,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691489478] [2022-03-15 16:06:25,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:25,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:25,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:25,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691489478] [2022-03-15 16:06:25,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691489478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:25,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:25,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:06:25,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094542672] [2022-03-15 16:06:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:25,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:06:25,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:25,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:06:25,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:06:25,974 INFO L87 Difference]: Start difference. First operand 6942 states and 24410 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:30,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:30,043 INFO L93 Difference]: Finished difference Result 13025 states and 45918 transitions. [2022-03-15 16:06:30,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-15 16:06:30,043 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:30,073 INFO L225 Difference]: With dead ends: 13025 [2022-03-15 16:06:30,073 INFO L226 Difference]: Without dead ends: 12836 [2022-03-15 16:06:30,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3465 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=885, Invalid=9417, Unknown=0, NotChecked=0, Total=10302 [2022-03-15 16:06:30,075 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 1035 mSDsluCounter, 4828 mSDsCounter, 0 mSdLazyCounter, 5949 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 6171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 5949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:30,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 3144 Invalid, 6171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 5949 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 16:06:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12836 states. [2022-03-15 16:06:30,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12836 to 6956. [2022-03-15 16:06:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 3.5168943206326384) internal successors, (24460), 6955 states have internal predecessors, (24460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 24460 transitions. [2022-03-15 16:06:30,221 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 24460 transitions. Word has length 47 [2022-03-15 16:06:30,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:30,221 INFO L470 AbstractCegarLoop]: Abstraction has 6956 states and 24460 transitions. [2022-03-15 16:06:30,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 24460 transitions. [2022-03-15 16:06:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:30,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:30,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:30,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-15 16:06:30,233 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:30,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1319554307, now seen corresponding path program 150 times [2022-03-15 16:06:30,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:30,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736236091] [2022-03-15 16:06:30,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:30,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:30,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:30,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:30,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736236091] [2022-03-15 16:06:30,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736236091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:30,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:30,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:06:30,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633746799] [2022-03-15 16:06:30,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:30,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:06:30,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:30,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:06:30,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:06:30,468 INFO L87 Difference]: Start difference. First operand 6956 states and 24460 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:35,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:35,110 INFO L93 Difference]: Finished difference Result 14539 states and 51585 transitions. [2022-03-15 16:06:35,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-03-15 16:06:35,111 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:35,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:35,145 INFO L225 Difference]: With dead ends: 14539 [2022-03-15 16:06:35,146 INFO L226 Difference]: Without dead ends: 14336 [2022-03-15 16:06:35,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5197 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1147, Invalid=13373, Unknown=0, NotChecked=0, Total=14520 [2022-03-15 16:06:35,148 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 1043 mSDsluCounter, 5432 mSDsCounter, 0 mSdLazyCounter, 6657 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 3705 SdHoareTripleChecker+Invalid, 6847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 6657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:35,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 3705 Invalid, 6847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 6657 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-15 16:06:35,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14336 states. [2022-03-15 16:06:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14336 to 6972. [2022-03-15 16:06:35,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6972 states, 6971 states have (on average 3.518863864581839) internal successors, (24530), 6971 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:35,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6972 states to 6972 states and 24530 transitions. [2022-03-15 16:06:35,304 INFO L78 Accepts]: Start accepts. Automaton has 6972 states and 24530 transitions. Word has length 47 [2022-03-15 16:06:35,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:35,304 INFO L470 AbstractCegarLoop]: Abstraction has 6972 states and 24530 transitions. [2022-03-15 16:06:35,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6972 states and 24530 transitions. [2022-03-15 16:06:35,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:35,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:35,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:35,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-15 16:06:35,315 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:35,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:35,316 INFO L85 PathProgramCache]: Analyzing trace with hash -730368805, now seen corresponding path program 151 times [2022-03-15 16:06:35,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:35,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771932650] [2022-03-15 16:06:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:35,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:35,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:35,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771932650] [2022-03-15 16:06:35,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771932650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:35,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:35,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:06:35,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681601385] [2022-03-15 16:06:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:35,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:06:35,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:35,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:06:35,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:06:35,546 INFO L87 Difference]: Start difference. First operand 6972 states and 24530 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:38,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:38,210 INFO L93 Difference]: Finished difference Result 10668 states and 37559 transitions. [2022-03-15 16:06:38,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-15 16:06:38,211 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:38,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:38,235 INFO L225 Difference]: With dead ends: 10668 [2022-03-15 16:06:38,235 INFO L226 Difference]: Without dead ends: 10541 [2022-03-15 16:06:38,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=454, Invalid=4516, Unknown=0, NotChecked=0, Total=4970 [2022-03-15 16:06:38,235 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 719 mSDsluCounter, 3923 mSDsCounter, 0 mSdLazyCounter, 4710 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 4800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 4710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:38,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 2731 Invalid, 4800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 4710 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 16:06:38,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10541 states. [2022-03-15 16:06:38,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10541 to 6994. [2022-03-15 16:06:38,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6994 states, 6993 states have (on average 3.5155155155155153) internal successors, (24584), 6993 states have internal predecessors, (24584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6994 states to 6994 states and 24584 transitions. [2022-03-15 16:06:38,362 INFO L78 Accepts]: Start accepts. Automaton has 6994 states and 24584 transitions. Word has length 47 [2022-03-15 16:06:38,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:38,362 INFO L470 AbstractCegarLoop]: Abstraction has 6994 states and 24584 transitions. [2022-03-15 16:06:38,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:38,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6994 states and 24584 transitions. [2022-03-15 16:06:38,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:38,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:38,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:38,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-15 16:06:38,374 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:38,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2101566211, now seen corresponding path program 152 times [2022-03-15 16:06:38,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:38,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002913486] [2022-03-15 16:06:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:38,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:38,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:38,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:38,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002913486] [2022-03-15 16:06:38,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002913486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:38,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:38,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:06:38,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290951643] [2022-03-15 16:06:38,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:38,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:06:38,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:06:38,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:06:38,616 INFO L87 Difference]: Start difference. First operand 6994 states and 24584 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:41,020 INFO L93 Difference]: Finished difference Result 10464 states and 36775 transitions. [2022-03-15 16:06:41,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 16:06:41,021 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:41,044 INFO L225 Difference]: With dead ends: 10464 [2022-03-15 16:06:41,044 INFO L226 Difference]: Without dead ends: 10364 [2022-03-15 16:06:41,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1140 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=400, Invalid=3760, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 16:06:41,045 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 646 mSDsluCounter, 3691 mSDsCounter, 0 mSdLazyCounter, 4308 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 4388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:41,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [646 Valid, 2513 Invalid, 4388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4308 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:06:41,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2022-03-15 16:06:41,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 7003. [2022-03-15 16:06:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 7002 states have (on average 3.51413881748072) internal successors, (24606), 7002 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:41,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 24606 transitions. [2022-03-15 16:06:41,183 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 24606 transitions. Word has length 47 [2022-03-15 16:06:41,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:41,184 INFO L470 AbstractCegarLoop]: Abstraction has 7003 states and 24606 transitions. [2022-03-15 16:06:41,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 24606 transitions. [2022-03-15 16:06:41,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:41,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:41,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:41,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-15 16:06:41,195 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:41,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:41,196 INFO L85 PathProgramCache]: Analyzing trace with hash 758333595, now seen corresponding path program 153 times [2022-03-15 16:06:41,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:41,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596687764] [2022-03-15 16:06:41,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:41,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:41,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:41,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596687764] [2022-03-15 16:06:41,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596687764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:41,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:41,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:06:41,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563613995] [2022-03-15 16:06:41,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:41,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:06:41,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:41,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:06:41,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:06:41,443 INFO L87 Difference]: Start difference. First operand 7003 states and 24606 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:45,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:45,055 INFO L93 Difference]: Finished difference Result 11977 states and 42156 transitions. [2022-03-15 16:06:45,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 16:06:45,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:45,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:45,081 INFO L225 Difference]: With dead ends: 11977 [2022-03-15 16:06:45,081 INFO L226 Difference]: Without dead ends: 11823 [2022-03-15 16:06:45,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2795 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=780, Invalid=7962, Unknown=0, NotChecked=0, Total=8742 [2022-03-15 16:06:45,082 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 893 mSDsluCounter, 4803 mSDsCounter, 0 mSdLazyCounter, 5616 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 5775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 5616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:45,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 3453 Invalid, 5775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 5616 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 16:06:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11823 states. [2022-03-15 16:06:45,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 7194. [2022-03-15 16:06:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7194 states, 7193 states have (on average 3.510774363964966) internal successors, (25253), 7193 states have internal predecessors, (25253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7194 states to 7194 states and 25253 transitions. [2022-03-15 16:06:45,220 INFO L78 Accepts]: Start accepts. Automaton has 7194 states and 25253 transitions. Word has length 47 [2022-03-15 16:06:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:45,220 INFO L470 AbstractCegarLoop]: Abstraction has 7194 states and 25253 transitions. [2022-03-15 16:06:45,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:45,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7194 states and 25253 transitions. [2022-03-15 16:06:45,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:45,231 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:45,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:45,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-15 16:06:45,232 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:45,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:45,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1316199937, now seen corresponding path program 154 times [2022-03-15 16:06:45,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:45,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220033946] [2022-03-15 16:06:45,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:45,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:45,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:45,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220033946] [2022-03-15 16:06:45,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220033946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:45,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:45,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:06:45,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502513462] [2022-03-15 16:06:45,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:45,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:06:45,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:45,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:06:45,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:06:45,467 INFO L87 Difference]: Start difference. First operand 7194 states and 25253 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:49,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:49,381 INFO L93 Difference]: Finished difference Result 13905 states and 48872 transitions. [2022-03-15 16:06:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-15 16:06:49,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:49,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:49,410 INFO L225 Difference]: With dead ends: 13905 [2022-03-15 16:06:49,411 INFO L226 Difference]: Without dead ends: 13767 [2022-03-15 16:06:49,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=827, Invalid=9475, Unknown=0, NotChecked=0, Total=10302 [2022-03-15 16:06:49,412 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 1016 mSDsluCounter, 5324 mSDsCounter, 0 mSdLazyCounter, 5963 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 6178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 5963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:49,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 3748 Invalid, 6178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 5963 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 16:06:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13767 states. [2022-03-15 16:06:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13767 to 7314. [2022-03-15 16:06:49,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7314 states, 7313 states have (on average 3.5134691645015725) internal successors, (25694), 7313 states have internal predecessors, (25694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7314 states to 7314 states and 25694 transitions. [2022-03-15 16:06:49,556 INFO L78 Accepts]: Start accepts. Automaton has 7314 states and 25694 transitions. Word has length 47 [2022-03-15 16:06:49,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:49,556 INFO L470 AbstractCegarLoop]: Abstraction has 7314 states and 25694 transitions. [2022-03-15 16:06:49,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:49,556 INFO L276 IsEmpty]: Start isEmpty. Operand 7314 states and 25694 transitions. [2022-03-15 16:06:49,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:49,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:49,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:49,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-15 16:06:49,568 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:49,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:49,568 INFO L85 PathProgramCache]: Analyzing trace with hash 152500989, now seen corresponding path program 155 times [2022-03-15 16:06:49,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:49,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187647393] [2022-03-15 16:06:49,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:49,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:49,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:49,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187647393] [2022-03-15 16:06:49,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187647393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:49,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:49,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:06:49,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747890046] [2022-03-15 16:06:49,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:49,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:06:49,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:49,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:06:49,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:06:49,798 INFO L87 Difference]: Start difference. First operand 7314 states and 25694 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:54,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:54,357 INFO L93 Difference]: Finished difference Result 14970 states and 52737 transitions. [2022-03-15 16:06:54,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-03-15 16:06:54,358 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:54,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:54,391 INFO L225 Difference]: With dead ends: 14970 [2022-03-15 16:06:54,392 INFO L226 Difference]: Without dead ends: 14857 [2022-03-15 16:06:54,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4818 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1072, Invalid=12500, Unknown=0, NotChecked=0, Total=13572 [2022-03-15 16:06:54,393 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1015 mSDsluCounter, 5343 mSDsCounter, 0 mSdLazyCounter, 6371 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 3783 SdHoareTripleChecker+Invalid, 6597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 6371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:54,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 3783 Invalid, 6597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 6371 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-15 16:06:54,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14857 states. [2022-03-15 16:06:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14857 to 7329. [2022-03-15 16:06:54,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7329 states, 7328 states have (on average 3.513100436681223) internal successors, (25744), 7328 states have internal predecessors, (25744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:54,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7329 states to 7329 states and 25744 transitions. [2022-03-15 16:06:54,548 INFO L78 Accepts]: Start accepts. Automaton has 7329 states and 25744 transitions. Word has length 47 [2022-03-15 16:06:54,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:54,548 INFO L470 AbstractCegarLoop]: Abstraction has 7329 states and 25744 transitions. [2022-03-15 16:06:54,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 7329 states and 25744 transitions. [2022-03-15 16:06:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:54,559 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:54,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:54,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-15 16:06:54,559 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:54,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:54,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1300529253, now seen corresponding path program 156 times [2022-03-15 16:06:54,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:54,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005457614] [2022-03-15 16:06:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:54,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:54,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:54,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005457614] [2022-03-15 16:06:54,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005457614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:54,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:54,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:06:54,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73377746] [2022-03-15 16:06:54,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:54,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:06:54,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:54,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:06:54,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:06:54,808 INFO L87 Difference]: Start difference. First operand 7329 states and 25744 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:06:57,274 INFO L93 Difference]: Finished difference Result 11739 states and 41164 transitions. [2022-03-15 16:06:57,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-15 16:06:57,275 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:06:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:06:57,301 INFO L225 Difference]: With dead ends: 11739 [2022-03-15 16:06:57,301 INFO L226 Difference]: Without dead ends: 11639 [2022-03-15 16:06:57,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1441 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=471, Invalid=4499, Unknown=0, NotChecked=0, Total=4970 [2022-03-15 16:06:57,302 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 704 mSDsluCounter, 3681 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 4313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:06:57,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 2513 Invalid, 4313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:06:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11639 states. [2022-03-15 16:06:57,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11639 to 7338. [2022-03-15 16:06:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7338 states, 7337 states have (on average 3.511789559765572) internal successors, (25766), 7337 states have internal predecessors, (25766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7338 states to 7338 states and 25766 transitions. [2022-03-15 16:06:57,488 INFO L78 Accepts]: Start accepts. Automaton has 7338 states and 25766 transitions. Word has length 47 [2022-03-15 16:06:57,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:06:57,488 INFO L470 AbstractCegarLoop]: Abstraction has 7338 states and 25766 transitions. [2022-03-15 16:06:57,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:06:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 7338 states and 25766 transitions. [2022-03-15 16:06:57,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:06:57,500 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:06:57,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:06:57,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-15 16:06:57,501 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:06:57,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:06:57,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1366591811, now seen corresponding path program 157 times [2022-03-15 16:06:57,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:06:57,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115563600] [2022-03-15 16:06:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:06:57,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:06:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:06:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:06:57,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:06:57,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115563600] [2022-03-15 16:06:57,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115563600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:06:57,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:06:57,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:06:57,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274094531] [2022-03-15 16:06:57,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:06:57,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:06:57,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:06:57,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:06:57,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:06:57,734 INFO L87 Difference]: Start difference. First operand 7338 states and 25766 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:01,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:01,782 INFO L93 Difference]: Finished difference Result 13320 states and 46717 transitions. [2022-03-15 16:07:01,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-15 16:07:01,782 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:01,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:01,816 INFO L225 Difference]: With dead ends: 13320 [2022-03-15 16:07:01,816 INFO L226 Difference]: Without dead ends: 13178 [2022-03-15 16:07:01,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3515 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=887, Invalid=9619, Unknown=0, NotChecked=0, Total=10506 [2022-03-15 16:07:01,818 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 1030 mSDsluCounter, 5116 mSDsCounter, 0 mSdLazyCounter, 5846 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 3686 SdHoareTripleChecker+Invalid, 6032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 5846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:01,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 3686 Invalid, 6032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 5846 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 16:07:01,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13178 states. [2022-03-15 16:07:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13178 to 7329. [2022-03-15 16:07:01,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7329 states, 7328 states have (on average 3.5141921397379914) internal successors, (25752), 7328 states have internal predecessors, (25752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:02,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7329 states to 7329 states and 25752 transitions. [2022-03-15 16:07:02,006 INFO L78 Accepts]: Start accepts. Automaton has 7329 states and 25752 transitions. Word has length 47 [2022-03-15 16:07:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:02,006 INFO L470 AbstractCegarLoop]: Abstraction has 7329 states and 25752 transitions. [2022-03-15 16:07:02,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 7329 states and 25752 transitions. [2022-03-15 16:07:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:02,019 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:02,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:02,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-15 16:07:02,019 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:02,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:02,019 INFO L85 PathProgramCache]: Analyzing trace with hash 896094299, now seen corresponding path program 158 times [2022-03-15 16:07:02,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:02,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081969769] [2022-03-15 16:07:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:02,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:02,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:02,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081969769] [2022-03-15 16:07:02,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081969769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:02,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:02,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:07:02,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212067588] [2022-03-15 16:07:02,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:02,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:07:02,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:02,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:07:02,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:07:02,271 INFO L87 Difference]: Start difference. First operand 7329 states and 25752 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:05,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:05,289 INFO L93 Difference]: Finished difference Result 11833 states and 41364 transitions. [2022-03-15 16:07:05,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-15 16:07:05,290 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:05,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:05,315 INFO L225 Difference]: With dead ends: 11833 [2022-03-15 16:07:05,316 INFO L226 Difference]: Without dead ends: 11696 [2022-03-15 16:07:05,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1776 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=522, Invalid=5330, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 16:07:05,317 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 811 mSDsluCounter, 3834 mSDsCounter, 0 mSdLazyCounter, 4730 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 4846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 4730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:05,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 2776 Invalid, 4846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 4730 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:07:05,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11696 states. [2022-03-15 16:07:05,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11696 to 7365. [2022-03-15 16:07:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 3.509234111895709) internal successors, (25842), 7364 states have internal predecessors, (25842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:05,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 25842 transitions. [2022-03-15 16:07:05,454 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 25842 transitions. Word has length 47 [2022-03-15 16:07:05,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:05,454 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 25842 transitions. [2022-03-15 16:07:05,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:05,455 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 25842 transitions. [2022-03-15 16:07:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:05,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:05,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:05,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-15 16:07:05,466 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:05,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:05,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1764279269, now seen corresponding path program 159 times [2022-03-15 16:07:05,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:05,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457025539] [2022-03-15 16:07:05,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:05,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:05,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:05,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:05,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457025539] [2022-03-15 16:07:05,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457025539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:05,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:05,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:07:05,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482321021] [2022-03-15 16:07:05,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:05,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:07:05,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:05,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:07:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:07:05,697 INFO L87 Difference]: Start difference. First operand 7365 states and 25842 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:09,225 INFO L93 Difference]: Finished difference Result 12448 states and 43499 transitions. [2022-03-15 16:07:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-15 16:07:09,226 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:09,256 INFO L225 Difference]: With dead ends: 12448 [2022-03-15 16:07:09,257 INFO L226 Difference]: Without dead ends: 12308 [2022-03-15 16:07:09,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2991 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=738, Invalid=8382, Unknown=0, NotChecked=0, Total=9120 [2022-03-15 16:07:09,258 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 975 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 5400 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 3285 SdHoareTripleChecker+Invalid, 5607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 5400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:09,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 3285 Invalid, 5607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 5400 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 16:07:09,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12308 states. [2022-03-15 16:07:09,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12308 to 7347. [2022-03-15 16:07:09,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 3.510890280424721) internal successors, (25791), 7346 states have internal predecessors, (25791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 25791 transitions. [2022-03-15 16:07:09,412 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 25791 transitions. Word has length 47 [2022-03-15 16:07:09,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:09,412 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 25791 transitions. [2022-03-15 16:07:09,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:09,412 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 25791 transitions. [2022-03-15 16:07:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:09,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:09,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:09,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-15 16:07:09,424 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:09,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:09,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2097663485, now seen corresponding path program 160 times [2022-03-15 16:07:09,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:09,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826682733] [2022-03-15 16:07:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:09,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:09,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:09,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826682733] [2022-03-15 16:07:09,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826682733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:09,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:09,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:07:09,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270824303] [2022-03-15 16:07:09,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:09,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:07:09,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:09,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:07:09,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:07:09,658 INFO L87 Difference]: Start difference. First operand 7347 states and 25791 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:13,856 INFO L93 Difference]: Finished difference Result 13400 states and 47109 transitions. [2022-03-15 16:07:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-15 16:07:13,857 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:13,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:13,886 INFO L225 Difference]: With dead ends: 13400 [2022-03-15 16:07:13,887 INFO L226 Difference]: Without dead ends: 13263 [2022-03-15 16:07:13,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=862, Invalid=9644, Unknown=0, NotChecked=0, Total=10506 [2022-03-15 16:07:13,887 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 1045 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 5883 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 6130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 5883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:13,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1045 Valid, 2992 Invalid, 6130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 5883 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 16:07:13,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13263 states. [2022-03-15 16:07:14,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13263 to 7496. [2022-03-15 16:07:14,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 3.5179452968645766) internal successors, (26367), 7495 states have internal predecessors, (26367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 26367 transitions. [2022-03-15 16:07:14,035 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 26367 transitions. Word has length 47 [2022-03-15 16:07:14,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:14,035 INFO L470 AbstractCegarLoop]: Abstraction has 7496 states and 26367 transitions. [2022-03-15 16:07:14,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:14,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 26367 transitions. [2022-03-15 16:07:14,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:14,047 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:14,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:14,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-15 16:07:14,047 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:14,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1247011577, now seen corresponding path program 161 times [2022-03-15 16:07:14,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:14,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456975075] [2022-03-15 16:07:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:14,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:14,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:14,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456975075] [2022-03-15 16:07:14,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456975075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:14,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:14,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:07:14,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152850239] [2022-03-15 16:07:14,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:14,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:07:14,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:14,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:07:14,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:07:14,281 INFO L87 Difference]: Start difference. First operand 7496 states and 26367 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:18,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:18,220 INFO L93 Difference]: Finished difference Result 13625 states and 47957 transitions. [2022-03-15 16:07:18,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-15 16:07:18,220 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:18,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:18,251 INFO L225 Difference]: With dead ends: 13625 [2022-03-15 16:07:18,252 INFO L226 Difference]: Without dead ends: 13365 [2022-03-15 16:07:18,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3313 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=816, Invalid=9084, Unknown=0, NotChecked=0, Total=9900 [2022-03-15 16:07:18,253 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 971 mSDsluCounter, 4518 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 6145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:18,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 3089 Invalid, 6145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 16:07:18,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13365 states. [2022-03-15 16:07:18,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13365 to 7367. [2022-03-15 16:07:18,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7367 states, 7366 states have (on average 3.5116752647298397) internal successors, (25867), 7366 states have internal predecessors, (25867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:18,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7367 states to 7367 states and 25867 transitions. [2022-03-15 16:07:18,452 INFO L78 Accepts]: Start accepts. Automaton has 7367 states and 25867 transitions. Word has length 47 [2022-03-15 16:07:18,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:18,452 INFO L470 AbstractCegarLoop]: Abstraction has 7367 states and 25867 transitions. [2022-03-15 16:07:18,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:18,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7367 states and 25867 transitions. [2022-03-15 16:07:18,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:18,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:18,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:18,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-15 16:07:18,465 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:18,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:18,466 INFO L85 PathProgramCache]: Analyzing trace with hash 157641055, now seen corresponding path program 162 times [2022-03-15 16:07:18,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:18,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891094645] [2022-03-15 16:07:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:18,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:18,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891094645] [2022-03-15 16:07:18,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891094645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:18,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:18,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:07:18,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205951332] [2022-03-15 16:07:18,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:18,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:07:18,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:18,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:07:18,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:07:18,722 INFO L87 Difference]: Start difference. First operand 7367 states and 25867 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:22,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:22,789 INFO L93 Difference]: Finished difference Result 14353 states and 50433 transitions. [2022-03-15 16:07:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-15 16:07:22,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:22,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:22,821 INFO L225 Difference]: With dead ends: 14353 [2022-03-15 16:07:22,822 INFO L226 Difference]: Without dead ends: 14231 [2022-03-15 16:07:22,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3800 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=871, Invalid=10259, Unknown=0, NotChecked=0, Total=11130 [2022-03-15 16:07:22,823 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1016 mSDsluCounter, 5456 mSDsCounter, 0 mSdLazyCounter, 6303 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 4003 SdHoareTripleChecker+Invalid, 6524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 6303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:22,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 4003 Invalid, 6524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 6303 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 16:07:22,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2022-03-15 16:07:23,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 7367. [2022-03-15 16:07:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7367 states, 7366 states have (on average 3.5116752647298397) internal successors, (25867), 7366 states have internal predecessors, (25867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7367 states to 7367 states and 25867 transitions. [2022-03-15 16:07:23,042 INFO L78 Accepts]: Start accepts. Automaton has 7367 states and 25867 transitions. Word has length 47 [2022-03-15 16:07:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:23,042 INFO L470 AbstractCegarLoop]: Abstraction has 7367 states and 25867 transitions. [2022-03-15 16:07:23,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 7367 states and 25867 transitions. [2022-03-15 16:07:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:23,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:23,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:23,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-15 16:07:23,055 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:23,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:23,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1006057893, now seen corresponding path program 163 times [2022-03-15 16:07:23,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:23,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786437534] [2022-03-15 16:07:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:23,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:23,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:23,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786437534] [2022-03-15 16:07:23,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786437534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:23,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:23,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:07:23,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017143080] [2022-03-15 16:07:23,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:23,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:07:23,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:23,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:07:23,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:07:23,294 INFO L87 Difference]: Start difference. First operand 7367 states and 25867 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:27,712 INFO L93 Difference]: Finished difference Result 14566 states and 51171 transitions. [2022-03-15 16:07:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-15 16:07:27,712 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:27,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:27,753 INFO L225 Difference]: With dead ends: 14566 [2022-03-15 16:07:27,753 INFO L226 Difference]: Without dead ends: 14451 [2022-03-15 16:07:27,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4334 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=987, Invalid=11445, Unknown=0, NotChecked=0, Total=12432 [2022-03-15 16:07:27,755 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 986 mSDsluCounter, 5356 mSDsCounter, 0 mSdLazyCounter, 6597 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 6810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 6597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:27,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 3853 Invalid, 6810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 6597 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-15 16:07:27,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14451 states. [2022-03-15 16:07:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14451 to 7409. [2022-03-15 16:07:27,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7409 states, 7408 states have (on average 3.511744060475162) internal successors, (26015), 7408 states have internal predecessors, (26015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7409 states to 7409 states and 26015 transitions. [2022-03-15 16:07:27,987 INFO L78 Accepts]: Start accepts. Automaton has 7409 states and 26015 transitions. Word has length 47 [2022-03-15 16:07:27,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:27,987 INFO L470 AbstractCegarLoop]: Abstraction has 7409 states and 26015 transitions. [2022-03-15 16:07:27,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:27,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7409 states and 26015 transitions. [2022-03-15 16:07:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:27,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:27,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:27,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-15 16:07:27,999 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:27,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:27,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1835879161, now seen corresponding path program 164 times [2022-03-15 16:07:27,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:27,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243737937] [2022-03-15 16:07:27,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:27,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:28,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:28,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243737937] [2022-03-15 16:07:28,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243737937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:28,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:28,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:07:28,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028836886] [2022-03-15 16:07:28,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:28,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:07:28,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:28,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:07:28,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:07:28,226 INFO L87 Difference]: Start difference. First operand 7409 states and 26015 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:30,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:30,560 INFO L93 Difference]: Finished difference Result 11320 states and 39731 transitions. [2022-03-15 16:07:30,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-15 16:07:30,561 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:30,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:30,586 INFO L225 Difference]: With dead ends: 11320 [2022-03-15 16:07:30,586 INFO L226 Difference]: Without dead ends: 11220 [2022-03-15 16:07:30,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=438, Invalid=4118, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 16:07:30,587 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 674 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 4009 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 4096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:30,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 2362 Invalid, 4096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4009 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 16:07:30,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2022-03-15 16:07:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 7418. [2022-03-15 16:07:30,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7418 states, 7417 states have (on average 3.5104489685856817) internal successors, (26037), 7417 states have internal predecessors, (26037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:30,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7418 states to 7418 states and 26037 transitions. [2022-03-15 16:07:30,732 INFO L78 Accepts]: Start accepts. Automaton has 7418 states and 26037 transitions. Word has length 47 [2022-03-15 16:07:30,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:30,732 INFO L470 AbstractCegarLoop]: Abstraction has 7418 states and 26037 transitions. [2022-03-15 16:07:30,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 7418 states and 26037 transitions. [2022-03-15 16:07:30,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:30,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:30,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:30,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-15 16:07:30,745 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:30,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:30,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1769816603, now seen corresponding path program 165 times [2022-03-15 16:07:30,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:30,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449768055] [2022-03-15 16:07:30,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:30,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:30,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:30,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449768055] [2022-03-15 16:07:30,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449768055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:30,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:30,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:07:30,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446075448] [2022-03-15 16:07:30,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:30,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:07:30,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:30,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:07:30,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:07:30,985 INFO L87 Difference]: Start difference. First operand 7418 states and 26037 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:34,660 INFO L93 Difference]: Finished difference Result 12752 states and 44502 transitions. [2022-03-15 16:07:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-15 16:07:34,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:34,690 INFO L225 Difference]: With dead ends: 12752 [2022-03-15 16:07:34,691 INFO L226 Difference]: Without dead ends: 12367 [2022-03-15 16:07:34,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2942 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=772, Invalid=8348, Unknown=0, NotChecked=0, Total=9120 [2022-03-15 16:07:34,692 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 952 mSDsluCounter, 4935 mSDsCounter, 0 mSdLazyCounter, 5702 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 5862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 5702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:34,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 3688 Invalid, 5862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 5702 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 16:07:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-03-15 16:07:34,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 7533. [2022-03-15 16:07:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7533 states, 7532 states have (on average 3.5123473181094) internal successors, (26455), 7532 states have internal predecessors, (26455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7533 states to 7533 states and 26455 transitions. [2022-03-15 16:07:34,838 INFO L78 Accepts]: Start accepts. Automaton has 7533 states and 26455 transitions. Word has length 47 [2022-03-15 16:07:34,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:34,838 INFO L470 AbstractCegarLoop]: Abstraction has 7533 states and 26455 transitions. [2022-03-15 16:07:34,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:34,838 INFO L276 IsEmpty]: Start isEmpty. Operand 7533 states and 26455 transitions. [2022-03-15 16:07:34,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:34,851 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:34,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:34,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-15 16:07:34,851 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:34,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1690028645, now seen corresponding path program 166 times [2022-03-15 16:07:34,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:34,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434490159] [2022-03-15 16:07:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:34,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:35,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:35,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434490159] [2022-03-15 16:07:35,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434490159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:35,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:35,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:07:35,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592065796] [2022-03-15 16:07:35,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:35,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:07:35,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:35,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:07:35,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:07:35,077 INFO L87 Difference]: Start difference. First operand 7533 states and 26455 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:38,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:38,307 INFO L93 Difference]: Finished difference Result 12440 states and 43725 transitions. [2022-03-15 16:07:38,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-15 16:07:38,307 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:38,335 INFO L225 Difference]: With dead ends: 12440 [2022-03-15 16:07:38,335 INFO L226 Difference]: Without dead ends: 12207 [2022-03-15 16:07:38,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2174 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=617, Invalid=6355, Unknown=0, NotChecked=0, Total=6972 [2022-03-15 16:07:38,336 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 799 mSDsluCounter, 4350 mSDsCounter, 0 mSdLazyCounter, 5272 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 5373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 5272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:38,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [799 Valid, 3066 Invalid, 5373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 5272 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 16:07:38,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12207 states. [2022-03-15 16:07:38,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12207 to 7643. [2022-03-15 16:07:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7643 states, 7642 states have (on average 3.51086103114368) internal successors, (26830), 7642 states have internal predecessors, (26830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:38,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7643 states to 7643 states and 26830 transitions. [2022-03-15 16:07:38,478 INFO L78 Accepts]: Start accepts. Automaton has 7643 states and 26830 transitions. Word has length 47 [2022-03-15 16:07:38,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:38,478 INFO L470 AbstractCegarLoop]: Abstraction has 7643 states and 26830 transitions. [2022-03-15 16:07:38,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 7643 states and 26830 transitions. [2022-03-15 16:07:38,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:38,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:38,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:38,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-15 16:07:38,491 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:38,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:38,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1254190047, now seen corresponding path program 167 times [2022-03-15 16:07:38,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:38,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603480386] [2022-03-15 16:07:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:38,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:38,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:38,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603480386] [2022-03-15 16:07:38,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603480386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:38,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:38,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:07:38,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728276046] [2022-03-15 16:07:38,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:38,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:07:38,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:38,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:07:38,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:07:38,724 INFO L87 Difference]: Start difference. First operand 7643 states and 26830 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:42,897 INFO L93 Difference]: Finished difference Result 13721 states and 48302 transitions. [2022-03-15 16:07:42,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-15 16:07:42,897 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:42,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:42,932 INFO L225 Difference]: With dead ends: 13721 [2022-03-15 16:07:42,933 INFO L226 Difference]: Without dead ends: 13526 [2022-03-15 16:07:42,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3788 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=942, Invalid=9978, Unknown=0, NotChecked=0, Total=10920 [2022-03-15 16:07:42,934 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 930 mSDsluCounter, 4431 mSDsCounter, 0 mSdLazyCounter, 5773 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 5942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 5773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:42,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 3079 Invalid, 5942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 5773 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 16:07:42,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13526 states. [2022-03-15 16:07:43,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13526 to 7823. [2022-03-15 16:07:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7823 states, 7822 states have (on average 3.5175147021222193) internal successors, (27514), 7822 states have internal predecessors, (27514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7823 states to 7823 states and 27514 transitions. [2022-03-15 16:07:43,137 INFO L78 Accepts]: Start accepts. Automaton has 7823 states and 27514 transitions. Word has length 47 [2022-03-15 16:07:43,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:43,137 INFO L470 AbstractCegarLoop]: Abstraction has 7823 states and 27514 transitions. [2022-03-15 16:07:43,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7823 states and 27514 transitions. [2022-03-15 16:07:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:43,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:43,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:43,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-15 16:07:43,150 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:43,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:43,150 INFO L85 PathProgramCache]: Analyzing trace with hash 403538139, now seen corresponding path program 168 times [2022-03-15 16:07:43,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:43,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046306775] [2022-03-15 16:07:43,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:43,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:43,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:43,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046306775] [2022-03-15 16:07:43,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046306775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:43,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:43,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:07:43,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031733466] [2022-03-15 16:07:43,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:43,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:07:43,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:43,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:07:43,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:07:43,376 INFO L87 Difference]: Start difference. First operand 7823 states and 27514 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:48,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:48,249 INFO L93 Difference]: Finished difference Result 15923 states and 56409 transitions. [2022-03-15 16:07:48,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-15 16:07:48,250 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:48,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:48,289 INFO L225 Difference]: With dead ends: 15923 [2022-03-15 16:07:48,289 INFO L226 Difference]: Without dead ends: 15714 [2022-03-15 16:07:48,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6137 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1257, Invalid=15255, Unknown=0, NotChecked=0, Total=16512 [2022-03-15 16:07:48,291 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 1014 mSDsluCounter, 5165 mSDsCounter, 0 mSdLazyCounter, 6635 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 6802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 6635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:48,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 3700 Invalid, 6802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 6635 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-15 16:07:48,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15714 states. [2022-03-15 16:07:48,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15714 to 7927. [2022-03-15 16:07:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7927 states, 7926 states have (on average 3.5170325510976532) internal successors, (27876), 7926 states have internal predecessors, (27876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:48,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7927 states to 7927 states and 27876 transitions. [2022-03-15 16:07:48,507 INFO L78 Accepts]: Start accepts. Automaton has 7927 states and 27876 transitions. Word has length 47 [2022-03-15 16:07:48,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:48,508 INFO L470 AbstractCegarLoop]: Abstraction has 7927 states and 27876 transitions. [2022-03-15 16:07:48,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:48,508 INFO L276 IsEmpty]: Start isEmpty. Operand 7927 states and 27876 transitions. [2022-03-15 16:07:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:48,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:48,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:48,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-15 16:07:48,521 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:48,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1715621605, now seen corresponding path program 169 times [2022-03-15 16:07:48,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:48,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966849291] [2022-03-15 16:07:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:48,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:48,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:48,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:48,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966849291] [2022-03-15 16:07:48,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966849291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:48,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:48,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 16:07:48,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581718426] [2022-03-15 16:07:48,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:48,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 16:07:48,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:48,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 16:07:48,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:07:48,732 INFO L87 Difference]: Start difference. First operand 7927 states and 27876 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:51,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:51,783 INFO L93 Difference]: Finished difference Result 11868 states and 41423 transitions. [2022-03-15 16:07:51,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-15 16:07:51,783 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:51,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:51,810 INFO L225 Difference]: With dead ends: 11868 [2022-03-15 16:07:51,810 INFO L226 Difference]: Without dead ends: 11625 [2022-03-15 16:07:51,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=626, Invalid=6180, Unknown=0, NotChecked=0, Total=6806 [2022-03-15 16:07:51,811 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 736 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 4831 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 4938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:51,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 2425 Invalid, 4938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4831 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:07:51,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11625 states. [2022-03-15 16:07:51,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11625 to 8215. [2022-03-15 16:07:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8215 states, 8214 states have (on average 3.5175310445580714) internal successors, (28893), 8214 states have internal predecessors, (28893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:51,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8215 states to 8215 states and 28893 transitions. [2022-03-15 16:07:51,969 INFO L78 Accepts]: Start accepts. Automaton has 8215 states and 28893 transitions. Word has length 47 [2022-03-15 16:07:51,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:51,969 INFO L470 AbstractCegarLoop]: Abstraction has 8215 states and 28893 transitions. [2022-03-15 16:07:51,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8215 states and 28893 transitions. [2022-03-15 16:07:51,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:51,983 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:51,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:51,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-15 16:07:51,983 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:51,983 INFO L85 PathProgramCache]: Analyzing trace with hash 600471229, now seen corresponding path program 170 times [2022-03-15 16:07:51,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:51,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001201615] [2022-03-15 16:07:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:51,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:52,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:52,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:52,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001201615] [2022-03-15 16:07:52,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001201615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:52,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:52,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:07:52,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918722815] [2022-03-15 16:07:52,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:52,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:07:52,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:07:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:07:52,208 INFO L87 Difference]: Start difference. First operand 8215 states and 28893 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:56,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:56,536 INFO L93 Difference]: Finished difference Result 14645 states and 51587 transitions. [2022-03-15 16:07:56,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-15 16:07:56,536 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:07:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:56,570 INFO L225 Difference]: With dead ends: 14645 [2022-03-15 16:07:56,570 INFO L226 Difference]: Without dead ends: 14402 [2022-03-15 16:07:56,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4239 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=985, Invalid=11005, Unknown=0, NotChecked=0, Total=11990 [2022-03-15 16:07:56,572 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 954 mSDsluCounter, 4463 mSDsCounter, 0 mSdLazyCounter, 5958 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 6157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 5958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:56,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 3165 Invalid, 6157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 5958 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 16:07:56,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14402 states. [2022-03-15 16:07:56,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14402 to 8211. [2022-03-15 16:07:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8211 states, 8210 states have (on average 3.5266747868453105) internal successors, (28954), 8210 states have internal predecessors, (28954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8211 states to 8211 states and 28954 transitions. [2022-03-15 16:07:56,743 INFO L78 Accepts]: Start accepts. Automaton has 8211 states and 28954 transitions. Word has length 47 [2022-03-15 16:07:56,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:56,744 INFO L470 AbstractCegarLoop]: Abstraction has 8211 states and 28954 transitions. [2022-03-15 16:07:56,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:56,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8211 states and 28954 transitions. [2022-03-15 16:07:56,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:07:56,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:56,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:56,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-15 16:07:56,758 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:07:56,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:56,758 INFO L85 PathProgramCache]: Analyzing trace with hash -250180679, now seen corresponding path program 171 times [2022-03-15 16:07:56,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:56,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060331458] [2022-03-15 16:07:56,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:56,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:56,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:56,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:56,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060331458] [2022-03-15 16:07:56,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060331458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:56,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:56,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:07:56,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305340328] [2022-03-15 16:07:56,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:56,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:07:56,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:56,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:07:56,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:07:56,977 INFO L87 Difference]: Start difference. First operand 8211 states and 28954 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:01,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:01,677 INFO L93 Difference]: Finished difference Result 15299 states and 54095 transitions. [2022-03-15 16:08:01,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-03-15 16:08:01,678 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:01,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:01,712 INFO L225 Difference]: With dead ends: 15299 [2022-03-15 16:08:01,712 INFO L226 Difference]: Without dead ends: 14982 [2022-03-15 16:08:01,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5291 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1124, Invalid=13396, Unknown=0, NotChecked=0, Total=14520 [2022-03-15 16:08:01,714 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 976 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 6356 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 6560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 6356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:01,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 3518 Invalid, 6560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 6356 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-15 16:08:01,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14982 states. [2022-03-15 16:08:01,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14982 to 7895. [2022-03-15 16:08:01,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7895 states, 7894 states have (on average 3.5249556625285026) internal successors, (27826), 7894 states have internal predecessors, (27826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 27826 transitions. [2022-03-15 16:08:01,878 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 27826 transitions. Word has length 47 [2022-03-15 16:08:01,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:01,878 INFO L470 AbstractCegarLoop]: Abstraction has 7895 states and 27826 transitions. [2022-03-15 16:08:01,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 27826 transitions. [2022-03-15 16:08:01,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:01,891 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:01,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:01,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-15 16:08:01,891 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash 172664765, now seen corresponding path program 172 times [2022-03-15 16:08:01,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:01,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156946359] [2022-03-15 16:08:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:01,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:02,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:02,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:02,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156946359] [2022-03-15 16:08:02,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156946359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:02,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:02,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:02,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945258247] [2022-03-15 16:08:02,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:02,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:02,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:02,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:02,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:02,126 INFO L87 Difference]: Start difference. First operand 7895 states and 27826 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:05,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:05,772 INFO L93 Difference]: Finished difference Result 13242 states and 46560 transitions. [2022-03-15 16:08:05,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-15 16:08:05,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:05,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:05,802 INFO L225 Difference]: With dead ends: 13242 [2022-03-15 16:08:05,802 INFO L226 Difference]: Without dead ends: 13115 [2022-03-15 16:08:05,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2722 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=709, Invalid=7847, Unknown=0, NotChecked=0, Total=8556 [2022-03-15 16:08:05,803 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 877 mSDsluCounter, 5185 mSDsCounter, 0 mSdLazyCounter, 6142 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 6261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 6142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:05,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 3537 Invalid, 6261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 6142 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 16:08:05,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13115 states. [2022-03-15 16:08:05,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13115 to 7909. [2022-03-15 16:08:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7909 states, 7908 states have (on average 3.5235204855842186) internal successors, (27864), 7908 states have internal predecessors, (27864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:05,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7909 states to 7909 states and 27864 transitions. [2022-03-15 16:08:05,961 INFO L78 Accepts]: Start accepts. Automaton has 7909 states and 27864 transitions. Word has length 47 [2022-03-15 16:08:05,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:05,961 INFO L470 AbstractCegarLoop]: Abstraction has 7909 states and 27864 transitions. [2022-03-15 16:08:05,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 7909 states and 27864 transitions. [2022-03-15 16:08:05,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:05,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:05,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:05,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-15 16:08:05,974 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1178083839, now seen corresponding path program 173 times [2022-03-15 16:08:05,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:05,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191932505] [2022-03-15 16:08:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:05,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:06,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:06,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191932505] [2022-03-15 16:08:06,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191932505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:06,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:06,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:06,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070441750] [2022-03-15 16:08:06,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:06,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:06,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:06,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:06,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:06,205 INFO L87 Difference]: Start difference. First operand 7909 states and 27864 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:10,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:10,634 INFO L93 Difference]: Finished difference Result 14419 states and 50788 transitions. [2022-03-15 16:08:10,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-15 16:08:10,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:10,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:10,667 INFO L225 Difference]: With dead ends: 14419 [2022-03-15 16:08:10,668 INFO L226 Difference]: Without dead ends: 14330 [2022-03-15 16:08:10,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4324 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1025, Invalid=11407, Unknown=0, NotChecked=0, Total=12432 [2022-03-15 16:08:10,671 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 1003 mSDsluCounter, 4908 mSDsCounter, 0 mSdLazyCounter, 6185 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 3378 SdHoareTripleChecker+Invalid, 6379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 6185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:10,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 3378 Invalid, 6379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 6185 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 16:08:10,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14330 states. [2022-03-15 16:08:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14330 to 7917. [2022-03-15 16:08:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7917 states, 7916 states have (on average 3.5237493683678625) internal successors, (27894), 7916 states have internal predecessors, (27894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7917 states to 7917 states and 27894 transitions. [2022-03-15 16:08:10,844 INFO L78 Accepts]: Start accepts. Automaton has 7917 states and 27894 transitions. Word has length 47 [2022-03-15 16:08:10,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:10,844 INFO L470 AbstractCegarLoop]: Abstraction has 7917 states and 27894 transitions. [2022-03-15 16:08:10,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:10,844 INFO L276 IsEmpty]: Start isEmpty. Operand 7917 states and 27894 transitions. [2022-03-15 16:08:10,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:10,857 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:10,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:10,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-15 16:08:10,857 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:10,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:10,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2028735747, now seen corresponding path program 174 times [2022-03-15 16:08:10,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:10,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037705009] [2022-03-15 16:08:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:10,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:11,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:11,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037705009] [2022-03-15 16:08:11,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037705009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:11,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:11,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:11,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933831902] [2022-03-15 16:08:11,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:11,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:11,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:11,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:11,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:11,089 INFO L87 Difference]: Start difference. First operand 7917 states and 27894 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:16,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:16,655 INFO L93 Difference]: Finished difference Result 16386 states and 58025 transitions. [2022-03-15 16:08:16,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-15 16:08:16,656 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:16,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:16,694 INFO L225 Difference]: With dead ends: 16386 [2022-03-15 16:08:16,694 INFO L226 Difference]: Without dead ends: 16283 [2022-03-15 16:08:16,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7527 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1451, Invalid=18571, Unknown=0, NotChecked=0, Total=20022 [2022-03-15 16:08:16,696 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1119 mSDsluCounter, 6013 mSDsCounter, 0 mSdLazyCounter, 7544 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 4200 SdHoareTripleChecker+Invalid, 7752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 7544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:16,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 4200 Invalid, 7752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 7544 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-15 16:08:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16283 states. [2022-03-15 16:08:16,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16283 to 7923. [2022-03-15 16:08:16,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7923 states, 7922 states have (on average 3.52511991921232) internal successors, (27926), 7922 states have internal predecessors, (27926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7923 states to 7923 states and 27926 transitions. [2022-03-15 16:08:16,876 INFO L78 Accepts]: Start accepts. Automaton has 7923 states and 27926 transitions. Word has length 47 [2022-03-15 16:08:16,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:16,877 INFO L470 AbstractCegarLoop]: Abstraction has 7923 states and 27926 transitions. [2022-03-15 16:08:16,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 7923 states and 27926 transitions. [2022-03-15 16:08:16,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:16,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:16,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:16,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-15 16:08:16,889 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:16,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:16,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1714588123, now seen corresponding path program 175 times [2022-03-15 16:08:16,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:16,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204103532] [2022-03-15 16:08:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:16,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:17,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:17,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204103532] [2022-03-15 16:08:17,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204103532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:17,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:17,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:17,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632139670] [2022-03-15 16:08:17,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:17,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:17,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:17,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:17,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:17,119 INFO L87 Difference]: Start difference. First operand 7923 states and 27926 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:20,234 INFO L93 Difference]: Finished difference Result 12451 states and 43758 transitions. [2022-03-15 16:08:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-15 16:08:20,234 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:20,265 INFO L225 Difference]: With dead ends: 12451 [2022-03-15 16:08:20,265 INFO L226 Difference]: Without dead ends: 12324 [2022-03-15 16:08:20,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=565, Invalid=5915, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 16:08:20,265 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 762 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 5440 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 5537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 5440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:20,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 3270 Invalid, 5537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 5440 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:08:20,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12324 states. [2022-03-15 16:08:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12324 to 7939. [2022-03-15 16:08:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7939 states, 7938 states have (on average 3.5230536659108087) internal successors, (27966), 7938 states have internal predecessors, (27966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 27966 transitions. [2022-03-15 16:08:20,431 INFO L78 Accepts]: Start accepts. Automaton has 7939 states and 27966 transitions. Word has length 47 [2022-03-15 16:08:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:20,431 INFO L470 AbstractCegarLoop]: Abstraction has 7939 states and 27966 transitions. [2022-03-15 16:08:20,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 7939 states and 27966 transitions. [2022-03-15 16:08:20,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:20,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:20,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:20,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-15 16:08:20,445 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:20,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash -753007913, now seen corresponding path program 176 times [2022-03-15 16:08:20,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:20,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792922052] [2022-03-15 16:08:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:20,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:20,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:20,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792922052] [2022-03-15 16:08:20,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792922052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:20,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:20,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:08:20,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118312528] [2022-03-15 16:08:20,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:20,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:08:20,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:20,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:08:20,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:08:20,668 INFO L87 Difference]: Start difference. First operand 7939 states and 27966 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:22,655 INFO L93 Difference]: Finished difference Result 10213 states and 35694 transitions. [2022-03-15 16:08:22,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 16:08:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:22,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:22,679 INFO L225 Difference]: With dead ends: 10213 [2022-03-15 16:08:22,679 INFO L226 Difference]: Without dead ends: 10116 [2022-03-15 16:08:22,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=331, Invalid=3209, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 16:08:22,680 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 553 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 3721 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:22,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [553 Valid, 1966 Invalid, 3776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3721 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:08:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10116 states. [2022-03-15 16:08:22,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10116 to 7945. [2022-03-15 16:08:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7945 states, 7944 states have (on average 3.522280966767372) internal successors, (27981), 7944 states have internal predecessors, (27981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7945 states to 7945 states and 27981 transitions. [2022-03-15 16:08:22,828 INFO L78 Accepts]: Start accepts. Automaton has 7945 states and 27981 transitions. Word has length 47 [2022-03-15 16:08:22,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:22,828 INFO L470 AbstractCegarLoop]: Abstraction has 7945 states and 27981 transitions. [2022-03-15 16:08:22,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 7945 states and 27981 transitions. [2022-03-15 16:08:22,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:22,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:22,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:22,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-15 16:08:22,842 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:22,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:22,842 INFO L85 PathProgramCache]: Analyzing trace with hash -750334087, now seen corresponding path program 177 times [2022-03-15 16:08:22,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:22,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739939771] [2022-03-15 16:08:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:22,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:23,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:23,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739939771] [2022-03-15 16:08:23,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739939771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:23,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:23,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:23,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983696930] [2022-03-15 16:08:23,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:23,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:23,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:23,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:23,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:23,078 INFO L87 Difference]: Start difference. First operand 7945 states and 27981 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:26,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:26,437 INFO L93 Difference]: Finished difference Result 11804 states and 41393 transitions. [2022-03-15 16:08:26,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-15 16:08:26,437 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:26,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:26,464 INFO L225 Difference]: With dead ends: 11804 [2022-03-15 16:08:26,464 INFO L226 Difference]: Without dead ends: 11695 [2022-03-15 16:08:26,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2735 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=808, Invalid=7748, Unknown=0, NotChecked=0, Total=8556 [2022-03-15 16:08:26,466 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 854 mSDsluCounter, 4284 mSDsCounter, 0 mSdLazyCounter, 4931 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 5079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 4931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:26,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 2890 Invalid, 5079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 4931 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:08:26,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11695 states. [2022-03-15 16:08:26,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11695 to 7927. [2022-03-15 16:08:26,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7927 states, 7926 states have (on average 3.52409790562705) internal successors, (27932), 7926 states have internal predecessors, (27932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7927 states to 7927 states and 27932 transitions. [2022-03-15 16:08:26,625 INFO L78 Accepts]: Start accepts. Automaton has 7927 states and 27932 transitions. Word has length 47 [2022-03-15 16:08:26,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:26,625 INFO L470 AbstractCegarLoop]: Abstraction has 7927 states and 27932 transitions. [2022-03-15 16:08:26,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:26,625 INFO L276 IsEmpty]: Start isEmpty. Operand 7927 states and 27932 transitions. [2022-03-15 16:08:26,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:26,638 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:26,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:26,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-15 16:08:26,639 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:26,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:26,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2058805759, now seen corresponding path program 178 times [2022-03-15 16:08:26,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:26,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301996927] [2022-03-15 16:08:26,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:26,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:26,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:26,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301996927] [2022-03-15 16:08:26,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301996927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:26,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:26,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:26,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823690699] [2022-03-15 16:08:26,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:26,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:26,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:26,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:26,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:26,873 INFO L87 Difference]: Start difference. First operand 7927 states and 27932 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:29,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:29,573 INFO L93 Difference]: Finished difference Result 10895 states and 37971 transitions. [2022-03-15 16:08:29,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 16:08:29,573 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:29,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:29,596 INFO L225 Difference]: With dead ends: 10895 [2022-03-15 16:08:29,596 INFO L226 Difference]: Without dead ends: 10774 [2022-03-15 16:08:29,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1602 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=487, Invalid=5063, Unknown=0, NotChecked=0, Total=5550 [2022-03-15 16:08:29,597 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 747 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 4674 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:29,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 2577 Invalid, 4771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4674 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 16:08:29,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2022-03-15 16:08:29,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 7945. [2022-03-15 16:08:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7945 states, 7944 states have (on average 3.5237915407854983) internal successors, (27993), 7944 states have internal predecessors, (27993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7945 states to 7945 states and 27993 transitions. [2022-03-15 16:08:29,731 INFO L78 Accepts]: Start accepts. Automaton has 7945 states and 27993 transitions. Word has length 47 [2022-03-15 16:08:29,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:29,731 INFO L470 AbstractCegarLoop]: Abstraction has 7945 states and 27993 transitions. [2022-03-15 16:08:29,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7945 states and 27993 transitions. [2022-03-15 16:08:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:29,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:29,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:29,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-15 16:08:29,744 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:29,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:29,744 INFO L85 PathProgramCache]: Analyzing trace with hash -487384323, now seen corresponding path program 179 times [2022-03-15 16:08:29,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:29,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585455151] [2022-03-15 16:08:29,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:29,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:29,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:29,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585455151] [2022-03-15 16:08:29,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585455151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:29,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:29,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:29,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836260405] [2022-03-15 16:08:29,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:29,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:29,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:29,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:29,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:29,975 INFO L87 Difference]: Start difference. First operand 7945 states and 27993 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:34,749 INFO L93 Difference]: Finished difference Result 14844 states and 52008 transitions. [2022-03-15 16:08:34,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-15 16:08:34,749 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:34,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:34,788 INFO L225 Difference]: With dead ends: 14844 [2022-03-15 16:08:34,788 INFO L226 Difference]: Without dead ends: 14749 [2022-03-15 16:08:34,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5883 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1227, Invalid=15029, Unknown=0, NotChecked=0, Total=16256 [2022-03-15 16:08:34,789 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 999 mSDsluCounter, 5265 mSDsCounter, 0 mSdLazyCounter, 6581 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3974 SdHoareTripleChecker+Invalid, 6773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 6581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:34,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 3974 Invalid, 6773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 6581 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-15 16:08:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14749 states. [2022-03-15 16:08:34,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14749 to 7949. [2022-03-15 16:08:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7949 states, 7948 states have (on average 3.523779567186714) internal successors, (28007), 7948 states have internal predecessors, (28007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7949 states to 7949 states and 28007 transitions. [2022-03-15 16:08:34,984 INFO L78 Accepts]: Start accepts. Automaton has 7949 states and 28007 transitions. Word has length 47 [2022-03-15 16:08:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:34,984 INFO L470 AbstractCegarLoop]: Abstraction has 7949 states and 28007 transitions. [2022-03-15 16:08:34,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7949 states and 28007 transitions. [2022-03-15 16:08:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:34,998 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:34,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:34,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-15 16:08:34,999 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:34,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:34,999 INFO L85 PathProgramCache]: Analyzing trace with hash -188492645, now seen corresponding path program 180 times [2022-03-15 16:08:34,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:34,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775367234] [2022-03-15 16:08:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:34,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:35,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:35,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775367234] [2022-03-15 16:08:35,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775367234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:35,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:35,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:08:35,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274948216] [2022-03-15 16:08:35,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:35,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:08:35,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:35,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:08:35,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:08:35,240 INFO L87 Difference]: Start difference. First operand 7949 states and 28007 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:37,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:37,252 INFO L93 Difference]: Finished difference Result 10225 states and 35738 transitions. [2022-03-15 16:08:37,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 16:08:37,252 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:37,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:37,275 INFO L225 Difference]: With dead ends: 10225 [2022-03-15 16:08:37,275 INFO L226 Difference]: Without dead ends: 10128 [2022-03-15 16:08:37,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=340, Invalid=3200, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 16:08:37,276 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 563 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:37,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 1901 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:08:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10128 states. [2022-03-15 16:08:37,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10128 to 7957. [2022-03-15 16:08:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7957 states, 7956 states have (on average 3.5224987430869783) internal successors, (28025), 7956 states have internal predecessors, (28025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:37,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7957 states to 7957 states and 28025 transitions. [2022-03-15 16:08:37,434 INFO L78 Accepts]: Start accepts. Automaton has 7957 states and 28025 transitions. Word has length 47 [2022-03-15 16:08:37,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:37,434 INFO L470 AbstractCegarLoop]: Abstraction has 7957 states and 28025 transitions. [2022-03-15 16:08:37,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:37,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7957 states and 28025 transitions. [2022-03-15 16:08:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:37,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:37,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:37,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-15 16:08:37,448 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:37,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:37,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1913913155, now seen corresponding path program 181 times [2022-03-15 16:08:37,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:37,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915964377] [2022-03-15 16:08:37,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:37,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:37,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:37,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915964377] [2022-03-15 16:08:37,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915964377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:37,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:37,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:37,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344905103] [2022-03-15 16:08:37,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:37,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:37,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:37,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:37,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:37,680 INFO L87 Difference]: Start difference. First operand 7957 states and 28025 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:42,935 INFO L93 Difference]: Finished difference Result 15322 states and 53658 transitions. [2022-03-15 16:08:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-15 16:08:42,935 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:42,978 INFO L225 Difference]: With dead ends: 15322 [2022-03-15 16:08:42,978 INFO L226 Difference]: Without dead ends: 15092 [2022-03-15 16:08:42,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6884 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1516, Invalid=17116, Unknown=0, NotChecked=0, Total=18632 [2022-03-15 16:08:42,980 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 1225 mSDsluCounter, 6018 mSDsCounter, 0 mSdLazyCounter, 6715 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 3942 SdHoareTripleChecker+Invalid, 7010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 6715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:42,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 3942 Invalid, 7010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 6715 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-15 16:08:42,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15092 states. [2022-03-15 16:08:43,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15092 to 8232. [2022-03-15 16:08:43,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8232 states, 8231 states have (on average 3.5352934029887013) internal successors, (29099), 8231 states have internal predecessors, (29099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8232 states to 8232 states and 29099 transitions. [2022-03-15 16:08:43,165 INFO L78 Accepts]: Start accepts. Automaton has 8232 states and 29099 transitions. Word has length 47 [2022-03-15 16:08:43,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:43,165 INFO L470 AbstractCegarLoop]: Abstraction has 8232 states and 29099 transitions. [2022-03-15 16:08:43,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:43,165 INFO L276 IsEmpty]: Start isEmpty. Operand 8232 states and 29099 transitions. [2022-03-15 16:08:43,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:43,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:43,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:43,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-15 16:08:43,178 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:43,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash 156697947, now seen corresponding path program 182 times [2022-03-15 16:08:43,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:43,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919260231] [2022-03-15 16:08:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:43,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:43,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:43,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919260231] [2022-03-15 16:08:43,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919260231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:43,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:43,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:08:43,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477101392] [2022-03-15 16:08:43,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:43,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:08:43,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:43,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:08:43,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:08:43,433 INFO L87 Difference]: Start difference. First operand 8232 states and 29099 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:45,602 INFO L93 Difference]: Finished difference Result 10831 states and 38019 transitions. [2022-03-15 16:08:45,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-15 16:08:45,603 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:45,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:45,627 INFO L225 Difference]: With dead ends: 10831 [2022-03-15 16:08:45,627 INFO L226 Difference]: Without dead ends: 10694 [2022-03-15 16:08:45,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=411, Invalid=4011, Unknown=0, NotChecked=0, Total=4422 [2022-03-15 16:08:45,628 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 629 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 3748 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:45,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2189 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3748 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 16:08:45,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10694 states. [2022-03-15 16:08:45,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10694 to 8250. [2022-03-15 16:08:45,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8250 states, 8249 states have (on average 3.5330343071887502) internal successors, (29144), 8249 states have internal predecessors, (29144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:45,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8250 states to 8250 states and 29144 transitions. [2022-03-15 16:08:45,784 INFO L78 Accepts]: Start accepts. Automaton has 8250 states and 29144 transitions. Word has length 47 [2022-03-15 16:08:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:45,784 INFO L470 AbstractCegarLoop]: Abstraction has 8250 states and 29144 transitions. [2022-03-15 16:08:45,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:45,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8250 states and 29144 transitions. [2022-03-15 16:08:45,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:45,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:45,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:45,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-15 16:08:45,798 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:45,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash -652242661, now seen corresponding path program 183 times [2022-03-15 16:08:45,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:45,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915193705] [2022-03-15 16:08:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:45,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:46,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:46,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915193705] [2022-03-15 16:08:46,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915193705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:46,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:46,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:46,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169076513] [2022-03-15 16:08:46,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:46,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:46,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:46,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:46,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:46,036 INFO L87 Difference]: Start difference. First operand 8250 states and 29144 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:48,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:48,455 INFO L93 Difference]: Finished difference Result 10815 states and 37951 transitions. [2022-03-15 16:08:48,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-15 16:08:48,455 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:48,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:48,528 INFO L225 Difference]: With dead ends: 10815 [2022-03-15 16:08:48,529 INFO L226 Difference]: Without dead ends: 10670 [2022-03-15 16:08:48,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=427, Invalid=4403, Unknown=0, NotChecked=0, Total=4830 [2022-03-15 16:08:48,529 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 694 mSDsluCounter, 3544 mSDsCounter, 0 mSdLazyCounter, 4325 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 4417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 4325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:48,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [694 Valid, 2449 Invalid, 4417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 4325 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:08:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-03-15 16:08:48,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8250. [2022-03-15 16:08:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8250 states, 8249 states have (on average 3.532306946296521) internal successors, (29138), 8249 states have internal predecessors, (29138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8250 states to 8250 states and 29138 transitions. [2022-03-15 16:08:48,664 INFO L78 Accepts]: Start accepts. Automaton has 8250 states and 29138 transitions. Word has length 47 [2022-03-15 16:08:48,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:48,664 INFO L470 AbstractCegarLoop]: Abstraction has 8250 states and 29138 transitions. [2022-03-15 16:08:48,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:48,664 INFO L276 IsEmpty]: Start isEmpty. Operand 8250 states and 29138 transitions. [2022-03-15 16:08:48,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:48,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:48,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:48,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-15 16:08:48,680 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:48,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:48,681 INFO L85 PathProgramCache]: Analyzing trace with hash 247653117, now seen corresponding path program 184 times [2022-03-15 16:08:48,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:48,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832565005] [2022-03-15 16:08:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:48,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:48,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:48,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832565005] [2022-03-15 16:08:48,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832565005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:48,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:48,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:48,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097912017] [2022-03-15 16:08:48,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:48,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:48,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:48,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:48,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:48,945 INFO L87 Difference]: Start difference. First operand 8250 states and 29138 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:54,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:08:54,148 INFO L93 Difference]: Finished difference Result 15896 states and 56270 transitions. [2022-03-15 16:08:54,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-03-15 16:08:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:08:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:08:54,186 INFO L225 Difference]: With dead ends: 15896 [2022-03-15 16:08:54,186 INFO L226 Difference]: Without dead ends: 15759 [2022-03-15 16:08:54,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6381 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1245, Invalid=16047, Unknown=0, NotChecked=0, Total=17292 [2022-03-15 16:08:54,187 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1134 mSDsluCounter, 5275 mSDsCounter, 0 mSdLazyCounter, 6922 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 7177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 6922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:08:54,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 3884 Invalid, 7177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 6922 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-15 16:08:54,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15759 states. [2022-03-15 16:08:54,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15759 to 8399. [2022-03-15 16:08:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8399 states, 8398 states have (on average 3.5382233865206003) internal successors, (29714), 8398 states have internal predecessors, (29714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8399 states to 8399 states and 29714 transitions. [2022-03-15 16:08:54,368 INFO L78 Accepts]: Start accepts. Automaton has 8399 states and 29714 transitions. Word has length 47 [2022-03-15 16:08:54,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:08:54,368 INFO L470 AbstractCegarLoop]: Abstraction has 8399 states and 29714 transitions. [2022-03-15 16:08:54,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:08:54,368 INFO L276 IsEmpty]: Start isEmpty. Operand 8399 states and 29714 transitions. [2022-03-15 16:08:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:08:54,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:08:54,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:08:54,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-15 16:08:54,383 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:08:54,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:08:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash -602998791, now seen corresponding path program 185 times [2022-03-15 16:08:54,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:08:54,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577433998] [2022-03-15 16:08:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:08:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:08:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:08:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:08:54,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:08:54,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577433998] [2022-03-15 16:08:54,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577433998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:08:54,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:08:54,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:08:54,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636063581] [2022-03-15 16:08:54,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:08:54,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:08:54,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:08:54,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:08:54,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:08:54,616 INFO L87 Difference]: Start difference. First operand 8399 states and 29714 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:00,391 INFO L93 Difference]: Finished difference Result 16821 states and 59650 transitions. [2022-03-15 16:09:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-15 16:09:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:00,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:00,429 INFO L225 Difference]: With dead ends: 16821 [2022-03-15 16:09:00,429 INFO L226 Difference]: Without dead ends: 16561 [2022-03-15 16:09:00,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7651 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1423, Invalid=18883, Unknown=0, NotChecked=0, Total=20306 [2022-03-15 16:09:00,431 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1149 mSDsluCounter, 5798 mSDsCounter, 0 mSdLazyCounter, 7603 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 4267 SdHoareTripleChecker+Invalid, 7857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 7603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:00,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 4267 Invalid, 7857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 7603 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-15 16:09:00,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16561 states. [2022-03-15 16:09:00,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16561 to 8241. [2022-03-15 16:09:00,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8241 states, 8240 states have (on average 3.533252427184466) internal successors, (29114), 8240 states have internal predecessors, (29114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8241 states to 8241 states and 29114 transitions. [2022-03-15 16:09:00,609 INFO L78 Accepts]: Start accepts. Automaton has 8241 states and 29114 transitions. Word has length 47 [2022-03-15 16:09:00,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:00,609 INFO L470 AbstractCegarLoop]: Abstraction has 8241 states and 29114 transitions. [2022-03-15 16:09:00,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:00,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8241 states and 29114 transitions. [2022-03-15 16:09:00,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:00,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:00,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:00,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-15 16:09:00,623 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:00,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1077602655, now seen corresponding path program 186 times [2022-03-15 16:09:00,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:00,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192533544] [2022-03-15 16:09:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:00,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:00,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192533544] [2022-03-15 16:09:00,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192533544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:00,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:00,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:00,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935719601] [2022-03-15 16:09:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:00,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:00,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:00,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:00,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:00,863 INFO L87 Difference]: Start difference. First operand 8241 states and 29114 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:03,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:03,454 INFO L93 Difference]: Finished difference Result 11022 states and 38552 transitions. [2022-03-15 16:09:03,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 16:09:03,454 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:03,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:03,479 INFO L225 Difference]: With dead ends: 11022 [2022-03-15 16:09:03,479 INFO L226 Difference]: Without dead ends: 10901 [2022-03-15 16:09:03,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=477, Invalid=5073, Unknown=0, NotChecked=0, Total=5550 [2022-03-15 16:09:03,480 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 735 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 4406 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 4508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 4406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:03,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [735 Valid, 2485 Invalid, 4508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 4406 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:09:03,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10901 states. [2022-03-15 16:09:03,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10901 to 8241. [2022-03-15 16:09:03,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8241 states, 8240 states have (on average 3.533252427184466) internal successors, (29114), 8240 states have internal predecessors, (29114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8241 states to 8241 states and 29114 transitions. [2022-03-15 16:09:03,656 INFO L78 Accepts]: Start accepts. Automaton has 8241 states and 29114 transitions. Word has length 47 [2022-03-15 16:09:03,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:03,656 INFO L470 AbstractCegarLoop]: Abstraction has 8241 states and 29114 transitions. [2022-03-15 16:09:03,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:03,656 INFO L276 IsEmpty]: Start isEmpty. Operand 8241 states and 29114 transitions. [2022-03-15 16:09:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:03,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:03,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:03,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-15 16:09:03,670 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:03,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:03,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1645943205, now seen corresponding path program 187 times [2022-03-15 16:09:03,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:03,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296692780] [2022-03-15 16:09:03,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:03,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:03,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:03,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296692780] [2022-03-15 16:09:03,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296692780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:03,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:03,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:03,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098712239] [2022-03-15 16:09:03,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:03,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:03,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:03,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:03,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:03,930 INFO L87 Difference]: Start difference. First operand 8241 states and 29114 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:09,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:09,334 INFO L93 Difference]: Finished difference Result 15203 states and 53548 transitions. [2022-03-15 16:09:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-03-15 16:09:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:09,370 INFO L225 Difference]: With dead ends: 15203 [2022-03-15 16:09:09,371 INFO L226 Difference]: Without dead ends: 14959 [2022-03-15 16:09:09,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6543 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1297, Invalid=16525, Unknown=0, NotChecked=0, Total=17822 [2022-03-15 16:09:09,373 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1019 mSDsluCounter, 5502 mSDsCounter, 0 mSdLazyCounter, 6782 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 4284 SdHoareTripleChecker+Invalid, 6992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 6782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:09,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 4284 Invalid, 6992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 6782 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-15 16:09:09,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14959 states. [2022-03-15 16:09:09,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14959 to 8223. [2022-03-15 16:09:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8223 states, 8222 states have (on average 3.534784723911457) internal successors, (29063), 8222 states have internal predecessors, (29063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8223 states to 8223 states and 29063 transitions. [2022-03-15 16:09:09,599 INFO L78 Accepts]: Start accepts. Automaton has 8223 states and 29063 transitions. Word has length 47 [2022-03-15 16:09:09,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:09,599 INFO L470 AbstractCegarLoop]: Abstraction has 8223 states and 29063 transitions. [2022-03-15 16:09:09,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand 8223 states and 29063 transitions. [2022-03-15 16:09:09,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:09,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:09,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:09,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-15 16:09:09,612 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:09,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:09,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1347051527, now seen corresponding path program 188 times [2022-03-15 16:09:09,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:09,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179164759] [2022-03-15 16:09:09,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:09,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:09,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:09,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179164759] [2022-03-15 16:09:09,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179164759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:09,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:09,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:09:09,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356544979] [2022-03-15 16:09:09,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:09,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:09:09,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:09,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:09:09,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:09:09,860 INFO L87 Difference]: Start difference. First operand 8223 states and 29063 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:11,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:11,781 INFO L93 Difference]: Finished difference Result 10368 states and 36385 transitions. [2022-03-15 16:09:11,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 16:09:11,781 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:11,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:11,803 INFO L225 Difference]: With dead ends: 10368 [2022-03-15 16:09:11,803 INFO L226 Difference]: Without dead ends: 10271 [2022-03-15 16:09:11,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=340, Invalid=3320, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 16:09:11,804 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 521 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 3499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:11,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 1879 Invalid, 3499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3441 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 16:09:11,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10271 states. [2022-03-15 16:09:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10271 to 8237. [2022-03-15 16:09:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8237 states, 8236 states have (on average 3.5320543953375423) internal successors, (29090), 8236 states have internal predecessors, (29090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:11,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 29090 transitions. [2022-03-15 16:09:11,946 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 29090 transitions. Word has length 47 [2022-03-15 16:09:11,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:11,946 INFO L470 AbstractCegarLoop]: Abstraction has 8237 states and 29090 transitions. [2022-03-15 16:09:11,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 29090 transitions. [2022-03-15 16:09:11,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:11,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:11,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:11,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-15 16:09:11,962 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:11,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:11,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1222495259, now seen corresponding path program 189 times [2022-03-15 16:09:11,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:11,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413061724] [2022-03-15 16:09:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:11,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:12,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:12,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:12,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413061724] [2022-03-15 16:09:12,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413061724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:12,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:12,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:12,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584144865] [2022-03-15 16:09:12,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:12,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:12,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:12,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:12,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:12,208 INFO L87 Difference]: Start difference. First operand 8237 states and 29090 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:17,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:17,138 INFO L93 Difference]: Finished difference Result 15369 states and 53940 transitions. [2022-03-15 16:09:17,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-03-15 16:09:17,138 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:17,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:17,175 INFO L225 Difference]: With dead ends: 15369 [2022-03-15 16:09:17,175 INFO L226 Difference]: Without dead ends: 14901 [2022-03-15 16:09:17,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5662 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1290, Invalid=14460, Unknown=0, NotChecked=0, Total=15750 [2022-03-15 16:09:17,177 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 1177 mSDsluCounter, 6052 mSDsCounter, 0 mSdLazyCounter, 6899 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 7176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 6899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:17,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 4170 Invalid, 7176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 6899 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-15 16:09:17,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14901 states. [2022-03-15 16:09:17,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14901 to 8363. [2022-03-15 16:09:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8363 states, 8362 states have (on average 3.5418560153073426) internal successors, (29617), 8362 states have internal predecessors, (29617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8363 states to 8363 states and 29617 transitions. [2022-03-15 16:09:17,391 INFO L78 Accepts]: Start accepts. Automaton has 8363 states and 29617 transitions. Word has length 47 [2022-03-15 16:09:17,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:17,391 INFO L470 AbstractCegarLoop]: Abstraction has 8363 states and 29617 transitions. [2022-03-15 16:09:17,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:17,391 INFO L276 IsEmpty]: Start isEmpty. Operand 8363 states and 29617 transitions. [2022-03-15 16:09:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:17,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:17,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:17,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-15 16:09:17,406 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:17,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:17,406 INFO L85 PathProgramCache]: Analyzing trace with hash 135347419, now seen corresponding path program 190 times [2022-03-15 16:09:17,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:17,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014556058] [2022-03-15 16:09:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:17,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:17,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:17,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:17,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014556058] [2022-03-15 16:09:17,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014556058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:17,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:17,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:17,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378790068] [2022-03-15 16:09:17,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:17,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:17,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:17,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:17,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:17,642 INFO L87 Difference]: Start difference. First operand 8363 states and 29617 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:20,686 INFO L93 Difference]: Finished difference Result 12940 states and 45590 transitions. [2022-03-15 16:09:20,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-15 16:09:20,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:20,715 INFO L225 Difference]: With dead ends: 12940 [2022-03-15 16:09:20,715 INFO L226 Difference]: Without dead ends: 12813 [2022-03-15 16:09:20,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1829 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=542, Invalid=5620, Unknown=0, NotChecked=0, Total=6162 [2022-03-15 16:09:20,716 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 739 mSDsluCounter, 4449 mSDsCounter, 0 mSdLazyCounter, 5270 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 5382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 5270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:20,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 2962 Invalid, 5382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 5270 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:09:20,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12813 states. [2022-03-15 16:09:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12813 to 8395. [2022-03-15 16:09:20,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8395 states, 8394 states have (on average 3.5395520609959497) internal successors, (29711), 8394 states have internal predecessors, (29711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8395 states to 8395 states and 29711 transitions. [2022-03-15 16:09:20,868 INFO L78 Accepts]: Start accepts. Automaton has 8395 states and 29711 transitions. Word has length 47 [2022-03-15 16:09:20,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:20,868 INFO L470 AbstractCegarLoop]: Abstraction has 8395 states and 29711 transitions. [2022-03-15 16:09:20,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:20,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8395 states and 29711 transitions. [2022-03-15 16:09:20,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:20,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:20,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:20,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-15 16:09:20,881 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:20,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:20,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1235849987, now seen corresponding path program 191 times [2022-03-15 16:09:20,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:20,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414844042] [2022-03-15 16:09:20,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:20,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:21,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:21,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:21,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414844042] [2022-03-15 16:09:21,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414844042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:21,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:21,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:21,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204753614] [2022-03-15 16:09:21,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:21,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:21,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:21,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:21,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:21,112 INFO L87 Difference]: Start difference. First operand 8395 states and 29711 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:23,943 INFO L93 Difference]: Finished difference Result 12641 states and 44540 transitions. [2022-03-15 16:09:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 16:09:23,944 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:23,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:23,974 INFO L225 Difference]: With dead ends: 12641 [2022-03-15 16:09:23,974 INFO L226 Difference]: Without dead ends: 12541 [2022-03-15 16:09:23,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1552 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=494, Invalid=4908, Unknown=0, NotChecked=0, Total=5402 [2022-03-15 16:09:23,975 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 783 mSDsluCounter, 4087 mSDsCounter, 0 mSdLazyCounter, 4638 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 4747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:23,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 2801 Invalid, 4747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4638 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:09:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12541 states. [2022-03-15 16:09:24,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12541 to 8422. [2022-03-15 16:09:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8422 states, 8421 states have (on average 3.536040850255314) internal successors, (29777), 8421 states have internal predecessors, (29777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8422 states to 8422 states and 29777 transitions. [2022-03-15 16:09:24,139 INFO L78 Accepts]: Start accepts. Automaton has 8422 states and 29777 transitions. Word has length 47 [2022-03-15 16:09:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:24,139 INFO L470 AbstractCegarLoop]: Abstraction has 8422 states and 29777 transitions. [2022-03-15 16:09:24,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8422 states and 29777 transitions. [2022-03-15 16:09:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:24,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:24,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:24,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-15 16:09:24,154 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:24,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1624049819, now seen corresponding path program 192 times [2022-03-15 16:09:24,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:24,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251734314] [2022-03-15 16:09:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:24,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:24,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251734314] [2022-03-15 16:09:24,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251734314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:24,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:24,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:24,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35241167] [2022-03-15 16:09:24,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:24,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:24,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:24,389 INFO L87 Difference]: Start difference. First operand 8422 states and 29777 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:28,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:28,242 INFO L93 Difference]: Finished difference Result 14137 states and 49621 transitions. [2022-03-15 16:09:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-15 16:09:28,243 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:28,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:28,278 INFO L225 Difference]: With dead ends: 14137 [2022-03-15 16:09:28,278 INFO L226 Difference]: Without dead ends: 14019 [2022-03-15 16:09:28,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3527 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=879, Invalid=9627, Unknown=0, NotChecked=0, Total=10506 [2022-03-15 16:09:28,280 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 965 mSDsluCounter, 4971 mSDsCounter, 0 mSdLazyCounter, 5759 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 5939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 5759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:28,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 3569 Invalid, 5939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 5759 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 16:09:28,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14019 states. [2022-03-15 16:09:28,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14019 to 8395. [2022-03-15 16:09:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8395 states, 8394 states have (on average 3.5390755301405767) internal successors, (29707), 8394 states have internal predecessors, (29707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8395 states to 8395 states and 29707 transitions. [2022-03-15 16:09:28,499 INFO L78 Accepts]: Start accepts. Automaton has 8395 states and 29707 transitions. Word has length 47 [2022-03-15 16:09:28,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:28,500 INFO L470 AbstractCegarLoop]: Abstraction has 8395 states and 29707 transitions. [2022-03-15 16:09:28,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8395 states and 29707 transitions. [2022-03-15 16:09:28,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:28,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:28,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:28,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-15 16:09:28,516 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:28,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:28,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2113051135, now seen corresponding path program 193 times [2022-03-15 16:09:28,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:28,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259037787] [2022-03-15 16:09:28,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:28,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:28,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:28,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259037787] [2022-03-15 16:09:28,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259037787] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:28,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:28,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:28,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954610271] [2022-03-15 16:09:28,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:28,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:28,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:28,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:28,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:28,794 INFO L87 Difference]: Start difference. First operand 8395 states and 29707 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:32,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:32,764 INFO L93 Difference]: Finished difference Result 15417 states and 54397 transitions. [2022-03-15 16:09:32,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-15 16:09:32,764 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:32,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:32,801 INFO L225 Difference]: With dead ends: 15417 [2022-03-15 16:09:32,801 INFO L226 Difference]: Without dead ends: 15312 [2022-03-15 16:09:32,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3712 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=843, Invalid=10077, Unknown=0, NotChecked=0, Total=10920 [2022-03-15 16:09:32,802 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 1018 mSDsluCounter, 5314 mSDsCounter, 0 mSdLazyCounter, 6004 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 6229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 6004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:32,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1018 Valid, 3785 Invalid, 6229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 6004 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 16:09:32,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15312 states. [2022-03-15 16:09:33,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15312 to 8409. [2022-03-15 16:09:33,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8408 states have (on average 3.538415794481446) internal successors, (29751), 8408 states have internal predecessors, (29751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:33,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 29751 transitions. [2022-03-15 16:09:33,050 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 29751 transitions. Word has length 47 [2022-03-15 16:09:33,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:33,050 INFO L470 AbstractCegarLoop]: Abstraction has 8409 states and 29751 transitions. [2022-03-15 16:09:33,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 29751 transitions. [2022-03-15 16:09:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:33,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:33,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:33,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-15 16:09:33,063 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:33,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:33,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1659983361, now seen corresponding path program 194 times [2022-03-15 16:09:33,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:33,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757634863] [2022-03-15 16:09:33,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:33,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:33,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:33,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757634863] [2022-03-15 16:09:33,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757634863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:33,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:33,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:33,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468501958] [2022-03-15 16:09:33,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:33,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:33,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:33,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:33,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:33,292 INFO L87 Difference]: Start difference. First operand 8409 states and 29751 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:36,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:36,126 INFO L93 Difference]: Finished difference Result 12990 states and 45708 transitions. [2022-03-15 16:09:36,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-15 16:09:36,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:36,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:36,157 INFO L225 Difference]: With dead ends: 12990 [2022-03-15 16:09:36,158 INFO L226 Difference]: Without dead ends: 12884 [2022-03-15 16:09:36,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1589 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=540, Invalid=5010, Unknown=0, NotChecked=0, Total=5550 [2022-03-15 16:09:36,158 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 766 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 4719 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 4830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 4719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:36,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 2855 Invalid, 4830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 4719 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:09:36,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12884 states. [2022-03-15 16:09:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12884 to 8409. [2022-03-15 16:09:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8408 states have (on average 3.538415794481446) internal successors, (29751), 8408 states have internal predecessors, (29751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 29751 transitions. [2022-03-15 16:09:36,329 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 29751 transitions. Word has length 47 [2022-03-15 16:09:36,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:36,329 INFO L470 AbstractCegarLoop]: Abstraction has 8409 states and 29751 transitions. [2022-03-15 16:09:36,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 29751 transitions. [2022-03-15 16:09:36,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:36,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:36,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:36,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-15 16:09:36,343 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:36,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1018217213, now seen corresponding path program 195 times [2022-03-15 16:09:36,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:36,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698263124] [2022-03-15 16:09:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:36,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:36,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:36,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698263124] [2022-03-15 16:09:36,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698263124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:36,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:36,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:36,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414589634] [2022-03-15 16:09:36,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:36,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:36,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:36,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:36,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:36,575 INFO L87 Difference]: Start difference. First operand 8409 states and 29751 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:41,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:41,901 INFO L93 Difference]: Finished difference Result 17836 states and 63151 transitions. [2022-03-15 16:09:41,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-03-15 16:09:41,901 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:41,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:41,943 INFO L225 Difference]: With dead ends: 17836 [2022-03-15 16:09:41,943 INFO L226 Difference]: Without dead ends: 17523 [2022-03-15 16:09:41,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6362 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1266, Invalid=16026, Unknown=0, NotChecked=0, Total=17292 [2022-03-15 16:09:41,945 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1012 mSDsluCounter, 6323 mSDsCounter, 0 mSdLazyCounter, 7506 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 4474 SdHoareTripleChecker+Invalid, 7744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 7506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:41,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1012 Valid, 4474 Invalid, 7744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 7506 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-15 16:09:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2022-03-15 16:09:42,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 8449. [2022-03-15 16:09:42,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8449 states, 8448 states have (on average 3.539535984848485) internal successors, (29902), 8448 states have internal predecessors, (29902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:42,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8449 states to 8449 states and 29902 transitions. [2022-03-15 16:09:42,167 INFO L78 Accepts]: Start accepts. Automaton has 8449 states and 29902 transitions. Word has length 47 [2022-03-15 16:09:42,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:42,167 INFO L470 AbstractCegarLoop]: Abstraction has 8449 states and 29902 transitions. [2022-03-15 16:09:42,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:42,168 INFO L276 IsEmpty]: Start isEmpty. Operand 8449 states and 29902 transitions. [2022-03-15 16:09:42,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:42,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:42,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:42,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-15 16:09:42,182 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:42,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:42,182 INFO L85 PathProgramCache]: Analyzing trace with hash -434813029, now seen corresponding path program 196 times [2022-03-15 16:09:42,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:42,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412837194] [2022-03-15 16:09:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:42,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:42,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:42,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412837194] [2022-03-15 16:09:42,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412837194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:42,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:42,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:42,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239151884] [2022-03-15 16:09:42,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:42,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:42,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:42,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:42,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:42,417 INFO L87 Difference]: Start difference. First operand 8449 states and 29902 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:45,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:45,475 INFO L93 Difference]: Finished difference Result 13381 states and 47204 transitions. [2022-03-15 16:09:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-15 16:09:45,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:45,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:45,506 INFO L225 Difference]: With dead ends: 13381 [2022-03-15 16:09:45,506 INFO L226 Difference]: Without dead ends: 13281 [2022-03-15 16:09:45,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1887 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=577, Invalid=5743, Unknown=0, NotChecked=0, Total=6320 [2022-03-15 16:09:45,507 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 804 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 5039 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 5157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 5039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:45,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 3055 Invalid, 5157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 5039 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:09:45,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13281 states. [2022-03-15 16:09:45,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13281 to 8458. [2022-03-15 16:09:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8458 states, 8457 states have (on average 3.5383705805841315) internal successors, (29924), 8457 states have internal predecessors, (29924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8458 states to 8458 states and 29924 transitions. [2022-03-15 16:09:45,675 INFO L78 Accepts]: Start accepts. Automaton has 8458 states and 29924 transitions. Word has length 47 [2022-03-15 16:09:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:45,675 INFO L470 AbstractCegarLoop]: Abstraction has 8458 states and 29924 transitions. [2022-03-15 16:09:45,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 8458 states and 29924 transitions. [2022-03-15 16:09:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:45,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:45,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:45,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-15 16:09:45,690 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash -500875587, now seen corresponding path program 197 times [2022-03-15 16:09:45,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:45,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154491608] [2022-03-15 16:09:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:45,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:45,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:45,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:45,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154491608] [2022-03-15 16:09:45,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154491608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:45,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:45,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:45,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737879154] [2022-03-15 16:09:45,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:45,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:45,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:45,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:45,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:45,929 INFO L87 Difference]: Start difference. First operand 8458 states and 29924 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:50,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:50,117 INFO L93 Difference]: Finished difference Result 14984 states and 52632 transitions. [2022-03-15 16:09:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-15 16:09:50,118 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:50,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:50,155 INFO L225 Difference]: With dead ends: 14984 [2022-03-15 16:09:50,155 INFO L226 Difference]: Without dead ends: 14878 [2022-03-15 16:09:50,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4122 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=960, Invalid=11030, Unknown=0, NotChecked=0, Total=11990 [2022-03-15 16:09:50,156 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 1013 mSDsluCounter, 5515 mSDsCounter, 0 mSdLazyCounter, 6241 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 3948 SdHoareTripleChecker+Invalid, 6445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 6241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:50,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1013 Valid, 3948 Invalid, 6445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 6241 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 16:09:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14878 states. [2022-03-15 16:09:50,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14878 to 8443. [2022-03-15 16:09:50,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8443 states, 8442 states have (on average 3.5405117270788913) internal successors, (29889), 8442 states have internal predecessors, (29889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8443 states to 8443 states and 29889 transitions. [2022-03-15 16:09:50,361 INFO L78 Accepts]: Start accepts. Automaton has 8443 states and 29889 transitions. Word has length 47 [2022-03-15 16:09:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:50,362 INFO L470 AbstractCegarLoop]: Abstraction has 8443 states and 29889 transitions. [2022-03-15 16:09:50,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8443 states and 29889 transitions. [2022-03-15 16:09:50,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:50,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:50,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:50,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-15 16:09:50,375 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:50,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:50,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1163588059, now seen corresponding path program 198 times [2022-03-15 16:09:50,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:50,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493715671] [2022-03-15 16:09:50,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:50,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:50,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:50,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493715671] [2022-03-15 16:09:50,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493715671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:50,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:50,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:50,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034659951] [2022-03-15 16:09:50,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:50,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:50,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:50,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:50,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:50,607 INFO L87 Difference]: Start difference. First operand 8443 states and 29889 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:53,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:53,447 INFO L93 Difference]: Finished difference Result 12146 states and 42729 transitions. [2022-03-15 16:09:53,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-15 16:09:53,447 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:53,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:53,478 INFO L225 Difference]: With dead ends: 12146 [2022-03-15 16:09:53,478 INFO L226 Difference]: Without dead ends: 12019 [2022-03-15 16:09:53,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=474, Invalid=4782, Unknown=0, NotChecked=0, Total=5256 [2022-03-15 16:09:53,479 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 666 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 5227 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 5308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 5227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:53,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [666 Valid, 2765 Invalid, 5308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 5227 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:09:53,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12019 states. [2022-03-15 16:09:53,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12019 to 8465. [2022-03-15 16:09:53,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8465 states, 8464 states have (on average 3.5388705103969755) internal successors, (29953), 8464 states have internal predecessors, (29953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8465 states to 8465 states and 29953 transitions. [2022-03-15 16:09:53,662 INFO L78 Accepts]: Start accepts. Automaton has 8465 states and 29953 transitions. Word has length 47 [2022-03-15 16:09:53,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:53,662 INFO L470 AbstractCegarLoop]: Abstraction has 8465 states and 29953 transitions. [2022-03-15 16:09:53,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:53,662 INFO L276 IsEmpty]: Start isEmpty. Operand 8465 states and 29953 transitions. [2022-03-15 16:09:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:53,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:53,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:53,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-15 16:09:53,677 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:53,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:53,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1304007977, now seen corresponding path program 199 times [2022-03-15 16:09:53,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:53,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049369444] [2022-03-15 16:09:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:53,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:53,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:53,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049369444] [2022-03-15 16:09:53,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049369444] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:53,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:53,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:53,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214098136] [2022-03-15 16:09:53,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:53,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:53,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:53,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:53,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:53,920 INFO L87 Difference]: Start difference. First operand 8465 states and 29953 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:56,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:09:56,346 INFO L93 Difference]: Finished difference Result 11529 states and 40297 transitions. [2022-03-15 16:09:56,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 16:09:56,346 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:09:56,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:09:56,374 INFO L225 Difference]: With dead ends: 11529 [2022-03-15 16:09:56,374 INFO L226 Difference]: Without dead ends: 11432 [2022-03-15 16:09:56,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=418, Invalid=4138, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 16:09:56,375 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 644 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 4206 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:09:56,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2320 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4206 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:09:56,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11432 states. [2022-03-15 16:09:56,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11432 to 8483. [2022-03-15 16:09:56,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8483 states, 8482 states have (on average 3.536665880688517) internal successors, (29998), 8482 states have internal predecessors, (29998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:56,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8483 states to 8483 states and 29998 transitions. [2022-03-15 16:09:56,559 INFO L78 Accepts]: Start accepts. Automaton has 8483 states and 29998 transitions. Word has length 47 [2022-03-15 16:09:56,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:09:56,559 INFO L470 AbstractCegarLoop]: Abstraction has 8483 states and 29998 transitions. [2022-03-15 16:09:56,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:09:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 8483 states and 29998 transitions. [2022-03-15 16:09:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:09:56,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:09:56,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:09:56,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-15 16:09:56,573 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:09:56,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:09:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1301334151, now seen corresponding path program 200 times [2022-03-15 16:09:56,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:09:56,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837187834] [2022-03-15 16:09:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:09:56,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:09:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:09:56,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:09:56,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:09:56,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837187834] [2022-03-15 16:09:56,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837187834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:09:56,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:09:56,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:09:56,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217581640] [2022-03-15 16:09:56,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:09:56,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:09:56,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:09:56,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:09:56,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:09:56,808 INFO L87 Difference]: Start difference. First operand 8483 states and 29998 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:00,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:00,302 INFO L93 Difference]: Finished difference Result 12913 states and 45328 transitions. [2022-03-15 16:10:00,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-15 16:10:00,303 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:00,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:00,333 INFO L225 Difference]: With dead ends: 12913 [2022-03-15 16:10:00,333 INFO L226 Difference]: Without dead ends: 12804 [2022-03-15 16:10:00,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2973 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=802, Invalid=8318, Unknown=0, NotChecked=0, Total=9120 [2022-03-15 16:10:00,334 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 918 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 5017 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 5179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 5017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:00,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2952 Invalid, 5179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 5017 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:10:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12804 states. [2022-03-15 16:10:00,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12804 to 8465. [2022-03-15 16:10:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8465 states, 8464 states have (on average 3.5383979206049148) internal successors, (29949), 8464 states have internal predecessors, (29949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:00,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8465 states to 8465 states and 29949 transitions. [2022-03-15 16:10:00,507 INFO L78 Accepts]: Start accepts. Automaton has 8465 states and 29949 transitions. Word has length 47 [2022-03-15 16:10:00,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:00,507 INFO L470 AbstractCegarLoop]: Abstraction has 8465 states and 29949 transitions. [2022-03-15 16:10:00,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:00,508 INFO L276 IsEmpty]: Start isEmpty. Operand 8465 states and 29949 transitions. [2022-03-15 16:10:00,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:00,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:00,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:00,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-15 16:10:00,522 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:00,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:00,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1685161473, now seen corresponding path program 201 times [2022-03-15 16:10:00,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:00,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940169364] [2022-03-15 16:10:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:00,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:00,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:00,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940169364] [2022-03-15 16:10:00,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940169364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:00,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:00,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:00,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929562865] [2022-03-15 16:10:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:00,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:00,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:00,761 INFO L87 Difference]: Start difference. First operand 8465 states and 29949 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:03,634 INFO L93 Difference]: Finished difference Result 11858 states and 41518 transitions. [2022-03-15 16:10:03,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-15 16:10:03,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:03,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:03,661 INFO L225 Difference]: With dead ends: 11858 [2022-03-15 16:10:03,661 INFO L226 Difference]: Without dead ends: 11737 [2022-03-15 16:10:03,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1939 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=575, Invalid=5905, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 16:10:03,662 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 765 mSDsluCounter, 3938 mSDsCounter, 0 mSdLazyCounter, 4720 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 4827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:03,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [765 Valid, 2660 Invalid, 4827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4720 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 16:10:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11737 states. [2022-03-15 16:10:03,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11737 to 8465. [2022-03-15 16:10:03,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8465 states, 8464 states have (on average 3.5383979206049148) internal successors, (29949), 8464 states have internal predecessors, (29949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:03,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8465 states to 8465 states and 29949 transitions. [2022-03-15 16:10:03,838 INFO L78 Accepts]: Start accepts. Automaton has 8465 states and 29949 transitions. Word has length 47 [2022-03-15 16:10:03,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:03,838 INFO L470 AbstractCegarLoop]: Abstraction has 8465 states and 29949 transitions. [2022-03-15 16:10:03,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:03,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8465 states and 29949 transitions. [2022-03-15 16:10:03,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:03,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:03,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:03,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-15 16:10:03,852 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:03,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:03,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1038384387, now seen corresponding path program 202 times [2022-03-15 16:10:03,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:03,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945209587] [2022-03-15 16:10:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:03,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:04,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:04,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:04,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945209587] [2022-03-15 16:10:04,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945209587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:04,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:04,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:04,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793354005] [2022-03-15 16:10:04,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:04,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:04,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:04,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:04,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:04,096 INFO L87 Difference]: Start difference. First operand 8465 states and 29949 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:09,331 INFO L93 Difference]: Finished difference Result 16389 states and 57802 transitions. [2022-03-15 16:10:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-15 16:10:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:09,368 INFO L225 Difference]: With dead ends: 16389 [2022-03-15 16:10:09,368 INFO L226 Difference]: Without dead ends: 16064 [2022-03-15 16:10:09,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6699 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1229, Invalid=16861, Unknown=0, NotChecked=0, Total=18090 [2022-03-15 16:10:09,370 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 971 mSDsluCounter, 6220 mSDsCounter, 0 mSdLazyCounter, 7463 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 4401 SdHoareTripleChecker+Invalid, 7669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 7463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:09,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 4401 Invalid, 7669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 7463 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-15 16:10:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16064 states. [2022-03-15 16:10:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16064 to 8454. [2022-03-15 16:10:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8454 states, 8453 states have (on average 3.5374423281675145) internal successors, (29902), 8453 states have internal predecessors, (29902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:09,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8454 states to 8454 states and 29902 transitions. [2022-03-15 16:10:09,555 INFO L78 Accepts]: Start accepts. Automaton has 8454 states and 29902 transitions. Word has length 47 [2022-03-15 16:10:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:09,556 INFO L470 AbstractCegarLoop]: Abstraction has 8454 states and 29902 transitions. [2022-03-15 16:10:09,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:09,556 INFO L276 IsEmpty]: Start isEmpty. Operand 8454 states and 29902 transitions. [2022-03-15 16:10:09,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:09,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:09,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:09,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-15 16:10:09,569 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:09,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:09,570 INFO L85 PathProgramCache]: Analyzing trace with hash -739492709, now seen corresponding path program 203 times [2022-03-15 16:10:09,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:09,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51242287] [2022-03-15 16:10:09,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:09,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:09,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:09,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51242287] [2022-03-15 16:10:09,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51242287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:09,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:09,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:09,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298774020] [2022-03-15 16:10:09,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:09,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:09,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:09,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:09,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:09,809 INFO L87 Difference]: Start difference. First operand 8454 states and 29902 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:12,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:12,225 INFO L93 Difference]: Finished difference Result 11514 states and 40231 transitions. [2022-03-15 16:10:12,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-15 16:10:12,225 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:12,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:12,250 INFO L225 Difference]: With dead ends: 11514 [2022-03-15 16:10:12,250 INFO L226 Difference]: Without dead ends: 11417 [2022-03-15 16:10:12,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=437, Invalid=4255, Unknown=0, NotChecked=0, Total=4692 [2022-03-15 16:10:12,251 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 660 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 4176 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 4248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:12,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 2298 Invalid, 4248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4176 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:10:12,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11417 states. [2022-03-15 16:10:12,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11417 to 8462. [2022-03-15 16:10:12,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8462 states, 8461 states have (on average 3.536225032502068) internal successors, (29920), 8461 states have internal predecessors, (29920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:12,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8462 states to 8462 states and 29920 transitions. [2022-03-15 16:10:12,437 INFO L78 Accepts]: Start accepts. Automaton has 8462 states and 29920 transitions. Word has length 47 [2022-03-15 16:10:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:12,438 INFO L470 AbstractCegarLoop]: Abstraction has 8462 states and 29920 transitions. [2022-03-15 16:10:12,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 8462 states and 29920 transitions. [2022-03-15 16:10:12,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:12,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:12,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:12,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-15 16:10:12,452 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:12,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:12,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1830054077, now seen corresponding path program 204 times [2022-03-15 16:10:12,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:12,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552085773] [2022-03-15 16:10:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:12,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:12,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:12,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552085773] [2022-03-15 16:10:12,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552085773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:12,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:12,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:12,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675167232] [2022-03-15 16:10:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:12,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:12,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:12,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:12,688 INFO L87 Difference]: Start difference. First operand 8462 states and 29920 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:18,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:18,007 INFO L93 Difference]: Finished difference Result 15670 states and 54941 transitions. [2022-03-15 16:10:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-15 16:10:18,007 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:18,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:18,044 INFO L225 Difference]: With dead ends: 15670 [2022-03-15 16:10:18,044 INFO L226 Difference]: Without dead ends: 15446 [2022-03-15 16:10:18,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6875 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1434, Invalid=17198, Unknown=0, NotChecked=0, Total=18632 [2022-03-15 16:10:18,044 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 1166 mSDsluCounter, 6181 mSDsCounter, 0 mSdLazyCounter, 7008 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 7313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 7008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:18,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 4126 Invalid, 7313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 7008 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-15 16:10:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15446 states. [2022-03-15 16:10:18,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15446 to 8467. [2022-03-15 16:10:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8467 states, 8466 states have (on average 3.538743208126624) internal successors, (29959), 8466 states have internal predecessors, (29959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8467 states to 8467 states and 29959 transitions. [2022-03-15 16:10:18,223 INFO L78 Accepts]: Start accepts. Automaton has 8467 states and 29959 transitions. Word has length 47 [2022-03-15 16:10:18,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:18,223 INFO L470 AbstractCegarLoop]: Abstraction has 8467 states and 29959 transitions. [2022-03-15 16:10:18,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 8467 states and 29959 transitions. [2022-03-15 16:10:18,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:18,236 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:18,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:18,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-15 16:10:18,237 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:18,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:18,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1211220069, now seen corresponding path program 205 times [2022-03-15 16:10:18,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:18,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693714741] [2022-03-15 16:10:18,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:18,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:18,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:18,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693714741] [2022-03-15 16:10:18,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693714741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:18,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:18,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:18,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575903269] [2022-03-15 16:10:18,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:18,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:18,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:18,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:18,481 INFO L87 Difference]: Start difference. First operand 8467 states and 29959 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:21,380 INFO L93 Difference]: Finished difference Result 12382 states and 43733 transitions. [2022-03-15 16:10:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 16:10:21,380 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:21,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:21,408 INFO L225 Difference]: With dead ends: 12382 [2022-03-15 16:10:21,408 INFO L226 Difference]: Without dead ends: 12282 [2022-03-15 16:10:21,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1496 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=472, Invalid=4784, Unknown=0, NotChecked=0, Total=5256 [2022-03-15 16:10:21,409 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 723 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 5196 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 5196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:21,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [723 Valid, 3137 Invalid, 5301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 5196 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:10:21,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2022-03-15 16:10:21,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 8476. [2022-03-15 16:10:21,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 3.537581120943953) internal successors, (29981), 8475 states have internal predecessors, (29981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:21,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 29981 transitions. [2022-03-15 16:10:21,629 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 29981 transitions. Word has length 47 [2022-03-15 16:10:21,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:21,629 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 29981 transitions. [2022-03-15 16:10:21,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:21,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 29981 transitions. [2022-03-15 16:10:21,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:21,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:21,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:21,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-15 16:10:21,644 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:21,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:21,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1648679737, now seen corresponding path program 206 times [2022-03-15 16:10:21,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:21,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139851841] [2022-03-15 16:10:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:21,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:21,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:21,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139851841] [2022-03-15 16:10:21,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139851841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:21,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:21,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:21,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689060785] [2022-03-15 16:10:21,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:21,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:21,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:21,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:21,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:21,899 INFO L87 Difference]: Start difference. First operand 8476 states and 29981 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:24,937 INFO L93 Difference]: Finished difference Result 12162 states and 42429 transitions. [2022-03-15 16:10:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-15 16:10:24,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:24,967 INFO L225 Difference]: With dead ends: 12162 [2022-03-15 16:10:24,967 INFO L226 Difference]: Without dead ends: 12044 [2022-03-15 16:10:24,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1756 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=562, Invalid=5444, Unknown=0, NotChecked=0, Total=6006 [2022-03-15 16:10:24,968 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 763 mSDsluCounter, 4404 mSDsCounter, 0 mSdLazyCounter, 5165 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 5276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 5165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:24,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 3089 Invalid, 5276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 5165 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:10:24,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12044 states. [2022-03-15 16:10:25,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12044 to 8476. [2022-03-15 16:10:25,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 3.5368731563421827) internal successors, (29975), 8475 states have internal predecessors, (29975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 29975 transitions. [2022-03-15 16:10:25,139 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 29975 transitions. Word has length 47 [2022-03-15 16:10:25,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:25,143 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 29975 transitions. [2022-03-15 16:10:25,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 29975 transitions. [2022-03-15 16:10:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:25,157 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:25,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:25,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-15 16:10:25,157 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:25,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:25,157 INFO L85 PathProgramCache]: Analyzing trace with hash -159438731, now seen corresponding path program 207 times [2022-03-15 16:10:25,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:25,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310356594] [2022-03-15 16:10:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:25,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:25,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:25,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310356594] [2022-03-15 16:10:25,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310356594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:25,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:25,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:25,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857889059] [2022-03-15 16:10:25,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:25,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:25,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:25,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:25,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:25,402 INFO L87 Difference]: Start difference. First operand 8476 states and 29975 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:27,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:27,857 INFO L93 Difference]: Finished difference Result 11549 states and 40496 transitions. [2022-03-15 16:10:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-15 16:10:27,857 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:27,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:27,884 INFO L225 Difference]: With dead ends: 11549 [2022-03-15 16:10:27,884 INFO L226 Difference]: Without dead ends: 11452 [2022-03-15 16:10:27,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=412, Invalid=4144, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 16:10:27,885 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 633 mSDsluCounter, 3867 mSDsCounter, 0 mSdLazyCounter, 4456 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 4527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:27,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [633 Valid, 2558 Invalid, 4527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 4456 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 16:10:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11452 states. [2022-03-15 16:10:28,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11452 to 8482. [2022-03-15 16:10:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8482 states, 8481 states have (on average 3.5361396061785166) internal successors, (29990), 8481 states have internal predecessors, (29990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8482 states to 8482 states and 29990 transitions. [2022-03-15 16:10:28,043 INFO L78 Accepts]: Start accepts. Automaton has 8482 states and 29990 transitions. Word has length 47 [2022-03-15 16:10:28,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:28,044 INFO L470 AbstractCegarLoop]: Abstraction has 8482 states and 29990 transitions. [2022-03-15 16:10:28,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 8482 states and 29990 transitions. [2022-03-15 16:10:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:28,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:28,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:28,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-15 16:10:28,058 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:28,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:28,058 INFO L85 PathProgramCache]: Analyzing trace with hash -156764905, now seen corresponding path program 208 times [2022-03-15 16:10:28,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:28,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043944423] [2022-03-15 16:10:28,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:28,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:28,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:28,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:28,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043944423] [2022-03-15 16:10:28,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043944423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:28,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:28,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:28,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380406852] [2022-03-15 16:10:28,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:28,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:28,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:28,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:28,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:28,293 INFO L87 Difference]: Start difference. First operand 8482 states and 29990 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:31,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:31,412 INFO L93 Difference]: Finished difference Result 12691 states and 44663 transitions. [2022-03-15 16:10:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-15 16:10:31,413 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:31,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:31,487 INFO L225 Difference]: With dead ends: 12691 [2022-03-15 16:10:31,487 INFO L226 Difference]: Without dead ends: 12582 [2022-03-15 16:10:31,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2059 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=624, Invalid=6182, Unknown=0, NotChecked=0, Total=6806 [2022-03-15 16:10:31,487 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 838 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 5097 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 5230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 5097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:31,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [838 Valid, 3073 Invalid, 5230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 5097 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:10:31,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12582 states. [2022-03-15 16:10:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12582 to 8464. [2022-03-15 16:10:31,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8463 states have (on average 3.5376344086021505) internal successors, (29939), 8463 states have internal predecessors, (29939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:31,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 29939 transitions. [2022-03-15 16:10:31,640 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 29939 transitions. Word has length 47 [2022-03-15 16:10:31,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:31,640 INFO L470 AbstractCegarLoop]: Abstraction has 8464 states and 29939 transitions. [2022-03-15 16:10:31,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:31,640 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 29939 transitions. [2022-03-15 16:10:31,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:31,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:31,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:31,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-15 16:10:31,655 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:31,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:31,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1413928267, now seen corresponding path program 209 times [2022-03-15 16:10:31,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:31,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396228858] [2022-03-15 16:10:31,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:31,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:31,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:31,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396228858] [2022-03-15 16:10:31,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396228858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:31,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:31,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:10:31,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974759349] [2022-03-15 16:10:31,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:31,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:10:31,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:31,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:10:31,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:10:31,879 INFO L87 Difference]: Start difference. First operand 8464 states and 29939 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:35,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:35,421 INFO L93 Difference]: Finished difference Result 13706 states and 48281 transitions. [2022-03-15 16:10:35,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-15 16:10:35,421 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:35,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:35,453 INFO L225 Difference]: With dead ends: 13706 [2022-03-15 16:10:35,454 INFO L226 Difference]: Without dead ends: 13606 [2022-03-15 16:10:35,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2804 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=787, Invalid=7769, Unknown=0, NotChecked=0, Total=8556 [2022-03-15 16:10:35,455 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 806 mSDsluCounter, 4471 mSDsCounter, 0 mSdLazyCounter, 5235 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 5375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 5235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:35,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [806 Valid, 3279 Invalid, 5375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 5235 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:10:35,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13606 states. [2022-03-15 16:10:35,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13606 to 8464. [2022-03-15 16:10:35,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8463 states have (on average 3.5376344086021505) internal successors, (29939), 8463 states have internal predecessors, (29939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 29939 transitions. [2022-03-15 16:10:35,696 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 29939 transitions. Word has length 47 [2022-03-15 16:10:35,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:35,696 INFO L470 AbstractCegarLoop]: Abstraction has 8464 states and 29939 transitions. [2022-03-15 16:10:35,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:35,697 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 29939 transitions. [2022-03-15 16:10:35,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:35,711 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:35,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:35,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-15 16:10:35,711 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:35,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:35,711 INFO L85 PathProgramCache]: Analyzing trace with hash 961200919, now seen corresponding path program 210 times [2022-03-15 16:10:35,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:35,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298290831] [2022-03-15 16:10:35,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:35,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:35,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:35,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:35,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298290831] [2022-03-15 16:10:35,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298290831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:35,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:35,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:10:35,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111020732] [2022-03-15 16:10:35,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:35,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:10:35,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:35,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:10:35,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:10:35,945 INFO L87 Difference]: Start difference. First operand 8464 states and 29939 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:39,744 INFO L93 Difference]: Finished difference Result 13713 states and 48385 transitions. [2022-03-15 16:10:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-15 16:10:39,744 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:39,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:39,778 INFO L225 Difference]: With dead ends: 13713 [2022-03-15 16:10:39,779 INFO L226 Difference]: Without dead ends: 13607 [2022-03-15 16:10:39,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3398 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=914, Invalid=9186, Unknown=0, NotChecked=0, Total=10100 [2022-03-15 16:10:39,780 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 796 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 5307 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 5435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 5307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:39,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [796 Valid, 3405 Invalid, 5435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 5307 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 16:10:39,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13607 states. [2022-03-15 16:10:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13607 to 8464. [2022-03-15 16:10:39,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8463 states have (on average 3.5376344086021505) internal successors, (29939), 8463 states have internal predecessors, (29939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 29939 transitions. [2022-03-15 16:10:39,978 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 29939 transitions. Word has length 47 [2022-03-15 16:10:39,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:39,978 INFO L470 AbstractCegarLoop]: Abstraction has 8464 states and 29939 transitions. [2022-03-15 16:10:39,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:39,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 29939 transitions. [2022-03-15 16:10:39,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:39,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:39,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:39,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-15 16:10:39,993 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:39,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:39,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1155618519, now seen corresponding path program 211 times [2022-03-15 16:10:39,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:39,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758968204] [2022-03-15 16:10:39,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:39,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:40,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:40,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758968204] [2022-03-15 16:10:40,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758968204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:40,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:40,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:40,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557841063] [2022-03-15 16:10:40,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:40,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:40,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:40,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:40,261 INFO L87 Difference]: Start difference. First operand 8464 states and 29939 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:44,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:44,368 INFO L93 Difference]: Finished difference Result 14165 states and 50052 transitions. [2022-03-15 16:10:44,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-15 16:10:44,369 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:44,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:44,401 INFO L225 Difference]: With dead ends: 14165 [2022-03-15 16:10:44,401 INFO L226 Difference]: Without dead ends: 14065 [2022-03-15 16:10:44,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3266 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=863, Invalid=9037, Unknown=0, NotChecked=0, Total=9900 [2022-03-15 16:10:44,403 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 937 mSDsluCounter, 5351 mSDsCounter, 0 mSdLazyCounter, 6217 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3895 SdHoareTripleChecker+Invalid, 6386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 6217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:44,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 3895 Invalid, 6386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 6217 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 16:10:44,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14065 states. [2022-03-15 16:10:44,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14065 to 8470. [2022-03-15 16:10:44,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 8469 states have (on average 3.5376077458968003) internal successors, (29960), 8469 states have internal predecessors, (29960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:44,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 29960 transitions. [2022-03-15 16:10:44,579 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 29960 transitions. Word has length 47 [2022-03-15 16:10:44,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:44,579 INFO L470 AbstractCegarLoop]: Abstraction has 8470 states and 29960 transitions. [2022-03-15 16:10:44,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:44,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 29960 transitions. [2022-03-15 16:10:44,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:44,594 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:44,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:44,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-15 16:10:44,594 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:44,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:44,594 INFO L85 PathProgramCache]: Analyzing trace with hash 612735575, now seen corresponding path program 212 times [2022-03-15 16:10:44,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:44,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210807527] [2022-03-15 16:10:44,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:44,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:44,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:44,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:44,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210807527] [2022-03-15 16:10:44,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210807527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:44,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:44,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:44,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142561290] [2022-03-15 16:10:44,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:44,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:44,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:44,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:44,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:44,826 INFO L87 Difference]: Start difference. First operand 8470 states and 29960 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:48,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:48,126 INFO L93 Difference]: Finished difference Result 13188 states and 46503 transitions. [2022-03-15 16:10:48,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-15 16:10:48,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:48,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:48,158 INFO L225 Difference]: With dead ends: 13188 [2022-03-15 16:10:48,158 INFO L226 Difference]: Without dead ends: 13088 [2022-03-15 16:10:48,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2375 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=693, Invalid=6963, Unknown=0, NotChecked=0, Total=7656 [2022-03-15 16:10:48,159 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 833 mSDsluCounter, 4774 mSDsCounter, 0 mSdLazyCounter, 5536 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 5668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 5536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:48,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [833 Valid, 3434 Invalid, 5668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 5536 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 16:10:48,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13088 states. [2022-03-15 16:10:48,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13088 to 8470. [2022-03-15 16:10:48,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 8469 states have (on average 3.53725351281143) internal successors, (29957), 8469 states have internal predecessors, (29957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:48,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 29957 transitions. [2022-03-15 16:10:48,329 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 29957 transitions. Word has length 47 [2022-03-15 16:10:48,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:48,329 INFO L470 AbstractCegarLoop]: Abstraction has 8470 states and 29957 transitions. [2022-03-15 16:10:48,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:48,330 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 29957 transitions. [2022-03-15 16:10:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:48,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:48,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:48,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-15 16:10:48,343 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:48,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:48,343 INFO L85 PathProgramCache]: Analyzing trace with hash 895138361, now seen corresponding path program 213 times [2022-03-15 16:10:48,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:48,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189300580] [2022-03-15 16:10:48,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:48,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:48,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:48,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189300580] [2022-03-15 16:10:48,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189300580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:48,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:48,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:48,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931979132] [2022-03-15 16:10:48,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:48,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:48,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:48,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:48,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:48,580 INFO L87 Difference]: Start difference. First operand 8470 states and 29957 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:52,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:52,743 INFO L93 Difference]: Finished difference Result 13839 states and 48810 transitions. [2022-03-15 16:10:52,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-03-15 16:10:52,743 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:52,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:52,776 INFO L225 Difference]: With dead ends: 13839 [2022-03-15 16:10:52,776 INFO L226 Difference]: Without dead ends: 13742 [2022-03-15 16:10:52,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3834 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=985, Invalid=10357, Unknown=0, NotChecked=0, Total=11342 [2022-03-15 16:10:52,777 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 889 mSDsluCounter, 5347 mSDsCounter, 0 mSdLazyCounter, 6159 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 6159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:52,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [889 Valid, 3920 Invalid, 6302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 6159 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 16:10:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13742 states. [2022-03-15 16:10:52,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13742 to 8476. [2022-03-15 16:10:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 3.536519174041298) internal successors, (29972), 8475 states have internal predecessors, (29972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:52,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 29972 transitions. [2022-03-15 16:10:52,964 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 29972 transitions. Word has length 47 [2022-03-15 16:10:52,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:52,964 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 29972 transitions. [2022-03-15 16:10:52,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:52,964 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 29972 transitions. [2022-03-15 16:10:52,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:52,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:52,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:52,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-15 16:10:52,979 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:52,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:52,979 INFO L85 PathProgramCache]: Analyzing trace with hash 978026967, now seen corresponding path program 214 times [2022-03-15 16:10:52,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:52,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886293206] [2022-03-15 16:10:52,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:52,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:53,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:53,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886293206] [2022-03-15 16:10:53,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886293206] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:53,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:53,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:53,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489203340] [2022-03-15 16:10:53,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:53,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:53,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:53,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:53,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:53,213 INFO L87 Difference]: Start difference. First operand 8476 states and 29972 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:10:56,845 INFO L93 Difference]: Finished difference Result 13196 states and 46675 transitions. [2022-03-15 16:10:56,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 16:10:56,846 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:10:56,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:10:56,878 INFO L225 Difference]: With dead ends: 13196 [2022-03-15 16:10:56,878 INFO L226 Difference]: Without dead ends: 13090 [2022-03-15 16:10:56,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2638 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=778, Invalid=7594, Unknown=0, NotChecked=0, Total=8372 [2022-03-15 16:10:56,878 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 811 mSDsluCounter, 4740 mSDsCounter, 0 mSdLazyCounter, 5654 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 5785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 5654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:10:56,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 3578 Invalid, 5785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 5654 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 16:10:56,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13090 states. [2022-03-15 16:10:57,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13090 to 8461. [2022-03-15 16:10:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8461 states, 8460 states have (on average 3.5386524822695034) internal successors, (29937), 8460 states have internal predecessors, (29937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8461 states to 8461 states and 29937 transitions. [2022-03-15 16:10:57,042 INFO L78 Accepts]: Start accepts. Automaton has 8461 states and 29937 transitions. Word has length 47 [2022-03-15 16:10:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:10:57,042 INFO L470 AbstractCegarLoop]: Abstraction has 8461 states and 29937 transitions. [2022-03-15 16:10:57,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:10:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8461 states and 29937 transitions. [2022-03-15 16:10:57,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:10:57,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:10:57,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:10:57,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-15 16:10:57,056 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:10:57,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:10:57,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1916708353, now seen corresponding path program 215 times [2022-03-15 16:10:57,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:10:57,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783483163] [2022-03-15 16:10:57,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:10:57,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:10:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:10:57,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:10:57,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:10:57,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783483163] [2022-03-15 16:10:57,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783483163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:10:57,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:10:57,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:10:57,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540360242] [2022-03-15 16:10:57,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:10:57,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:10:57,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:10:57,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:10:57,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:10:57,290 INFO L87 Difference]: Start difference. First operand 8461 states and 29937 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:03,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:03,006 INFO L93 Difference]: Finished difference Result 18918 states and 66580 transitions. [2022-03-15 16:11:03,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-03-15 16:11:03,006 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:03,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:03,049 INFO L225 Difference]: With dead ends: 18918 [2022-03-15 16:11:03,049 INFO L226 Difference]: Without dead ends: 18520 [2022-03-15 16:11:03,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8267 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1605, Invalid=20151, Unknown=0, NotChecked=0, Total=21756 [2022-03-15 16:11:03,051 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1364 mSDsluCounter, 6850 mSDsCounter, 0 mSdLazyCounter, 7704 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 8094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 7704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:03,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1364 Valid, 4758 Invalid, 8094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 7704 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-15 16:11:03,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18520 states. [2022-03-15 16:11:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18520 to 8861. [2022-03-15 16:11:03,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8860 states have (on average 3.550338600451467) internal successors, (31456), 8860 states have internal predecessors, (31456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:03,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 31456 transitions. [2022-03-15 16:11:03,280 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 31456 transitions. Word has length 47 [2022-03-15 16:11:03,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:03,281 INFO L470 AbstractCegarLoop]: Abstraction has 8861 states and 31456 transitions. [2022-03-15 16:11:03,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:03,281 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 31456 transitions. [2022-03-15 16:11:03,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:03,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:03,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:03,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-15 16:11:03,295 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:03,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:03,296 INFO L85 PathProgramCache]: Analyzing trace with hash -195913121, now seen corresponding path program 216 times [2022-03-15 16:11:03,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:03,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563328102] [2022-03-15 16:11:03,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:03,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:03,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:03,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563328102] [2022-03-15 16:11:03,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563328102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:03,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:03,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:11:03,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770537653] [2022-03-15 16:11:03,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:03,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:11:03,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:03,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:11:03,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:11:03,525 INFO L87 Difference]: Start difference. First operand 8861 states and 31456 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:09,977 INFO L93 Difference]: Finished difference Result 19219 states and 67529 transitions. [2022-03-15 16:11:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-03-15 16:11:09,978 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:09,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:10,027 INFO L225 Difference]: With dead ends: 19219 [2022-03-15 16:11:10,027 INFO L226 Difference]: Without dead ends: 18578 [2022-03-15 16:11:10,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10252 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1892, Invalid=24514, Unknown=0, NotChecked=0, Total=26406 [2022-03-15 16:11:10,030 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1512 mSDsluCounter, 6967 mSDsCounter, 0 mSdLazyCounter, 7873 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 8284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 7873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:10,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 4969 Invalid, 8284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 7873 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-15 16:11:10,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18578 states. [2022-03-15 16:11:10,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18578 to 9098. [2022-03-15 16:11:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9098 states, 9097 states have (on average 3.553369242607453) internal successors, (32325), 9097 states have internal predecessors, (32325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9098 states to 9098 states and 32325 transitions. [2022-03-15 16:11:10,289 INFO L78 Accepts]: Start accepts. Automaton has 9098 states and 32325 transitions. Word has length 47 [2022-03-15 16:11:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:10,289 INFO L470 AbstractCegarLoop]: Abstraction has 9098 states and 32325 transitions. [2022-03-15 16:11:10,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 9098 states and 32325 transitions. [2022-03-15 16:11:10,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:10,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:10,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:10,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-15 16:11:10,305 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:10,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:10,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2082893471, now seen corresponding path program 217 times [2022-03-15 16:11:10,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:10,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393010722] [2022-03-15 16:11:10,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:10,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:10,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:10,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393010722] [2022-03-15 16:11:10,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393010722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:10,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:10,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:11:10,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653899978] [2022-03-15 16:11:10,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:10,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:11:10,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:10,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:11:10,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:11:10,565 INFO L87 Difference]: Start difference. First operand 9098 states and 32325 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:16,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:16,924 INFO L93 Difference]: Finished difference Result 21701 states and 76586 transitions. [2022-03-15 16:11:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-03-15 16:11:16,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:16,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:16,977 INFO L225 Difference]: With dead ends: 21701 [2022-03-15 16:11:16,977 INFO L226 Difference]: Without dead ends: 21223 [2022-03-15 16:11:16,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9037 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1648, Invalid=21914, Unknown=0, NotChecked=0, Total=23562 [2022-03-15 16:11:16,980 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1483 mSDsluCounter, 6934 mSDsCounter, 0 mSdLazyCounter, 7885 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 8380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 7885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:16,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 4765 Invalid, 8380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 7885 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-15 16:11:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21223 states. [2022-03-15 16:11:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21223 to 9359. [2022-03-15 16:11:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9359 states, 9358 states have (on average 3.5555674289378074) internal successors, (33273), 9358 states have internal predecessors, (33273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:17,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 33273 transitions. [2022-03-15 16:11:17,271 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 33273 transitions. Word has length 47 [2022-03-15 16:11:17,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:17,271 INFO L470 AbstractCegarLoop]: Abstraction has 9359 states and 33273 transitions. [2022-03-15 16:11:17,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:17,271 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 33273 transitions. [2022-03-15 16:11:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:17,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:17,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:17,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-15 16:11:17,286 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:17,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:17,287 INFO L85 PathProgramCache]: Analyzing trace with hash -959811685, now seen corresponding path program 218 times [2022-03-15 16:11:17,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:17,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212789243] [2022-03-15 16:11:17,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:17,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:17,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:17,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212789243] [2022-03-15 16:11:17,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212789243] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:17,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:17,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:11:17,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744518542] [2022-03-15 16:11:17,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:17,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:11:17,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:17,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:11:17,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:11:17,519 INFO L87 Difference]: Start difference. First operand 9359 states and 33273 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:22,340 INFO L93 Difference]: Finished difference Result 19224 states and 68517 transitions. [2022-03-15 16:11:22,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-15 16:11:22,340 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:22,388 INFO L225 Difference]: With dead ends: 19224 [2022-03-15 16:11:22,388 INFO L226 Difference]: Without dead ends: 19124 [2022-03-15 16:11:22,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4973 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1059, Invalid=12983, Unknown=0, NotChecked=0, Total=14042 [2022-03-15 16:11:22,389 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1209 mSDsluCounter, 6041 mSDsCounter, 0 mSdLazyCounter, 6927 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 4364 SdHoareTripleChecker+Invalid, 7186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 6927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:22,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 4364 Invalid, 7186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 6927 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-15 16:11:22,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19124 states. [2022-03-15 16:11:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19124 to 9553. [2022-03-15 16:11:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9553 states, 9552 states have (on average 3.5583123953098825) internal successors, (33989), 9552 states have internal predecessors, (33989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9553 states to 9553 states and 33989 transitions. [2022-03-15 16:11:22,603 INFO L78 Accepts]: Start accepts. Automaton has 9553 states and 33989 transitions. Word has length 47 [2022-03-15 16:11:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:22,603 INFO L470 AbstractCegarLoop]: Abstraction has 9553 states and 33989 transitions. [2022-03-15 16:11:22,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:22,603 INFO L276 IsEmpty]: Start isEmpty. Operand 9553 states and 33989 transitions. [2022-03-15 16:11:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:22,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:22,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:22,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-15 16:11:22,619 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:22,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:22,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1025874243, now seen corresponding path program 219 times [2022-03-15 16:11:22,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:22,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534091350] [2022-03-15 16:11:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:22,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:22,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534091350] [2022-03-15 16:11:22,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534091350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:22,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:22,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:11:22,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460061150] [2022-03-15 16:11:22,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:22,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:11:22,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:22,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:11:22,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:11:22,849 INFO L87 Difference]: Start difference. First operand 9553 states and 33989 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:29,526 INFO L93 Difference]: Finished difference Result 22955 states and 81467 transitions. [2022-03-15 16:11:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-03-15 16:11:29,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:29,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:29,580 INFO L225 Difference]: With dead ends: 22955 [2022-03-15 16:11:29,580 INFO L226 Difference]: Without dead ends: 22705 [2022-03-15 16:11:29,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9440 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1670, Invalid=22822, Unknown=0, NotChecked=0, Total=24492 [2022-03-15 16:11:29,582 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1417 mSDsluCounter, 7780 mSDsCounter, 0 mSdLazyCounter, 9202 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 5485 SdHoareTripleChecker+Invalid, 9560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 9202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:29,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 5485 Invalid, 9560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 9202 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-15 16:11:29,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22705 states. [2022-03-15 16:11:29,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22705 to 9570. [2022-03-15 16:11:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9570 states, 9569 states have (on average 3.558992580206918) internal successors, (34056), 9569 states have internal predecessors, (34056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9570 states to 9570 states and 34056 transitions. [2022-03-15 16:11:29,841 INFO L78 Accepts]: Start accepts. Automaton has 9570 states and 34056 transitions. Word has length 47 [2022-03-15 16:11:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:29,841 INFO L470 AbstractCegarLoop]: Abstraction has 9570 states and 34056 transitions. [2022-03-15 16:11:29,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 9570 states and 34056 transitions. [2022-03-15 16:11:29,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:29,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:29,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:29,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-15 16:11:29,857 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:29,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:29,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1170556931, now seen corresponding path program 220 times [2022-03-15 16:11:29,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:29,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853852037] [2022-03-15 16:11:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:29,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:30,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:30,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853852037] [2022-03-15 16:11:30,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853852037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:30,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:30,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:11:30,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587235215] [2022-03-15 16:11:30,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:30,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:11:30,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:11:30,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:11:30,091 INFO L87 Difference]: Start difference. First operand 9570 states and 34056 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:36,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:36,968 INFO L93 Difference]: Finished difference Result 20403 states and 72081 transitions. [2022-03-15 16:11:36,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-15 16:11:36,968 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:36,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:37,016 INFO L225 Difference]: With dead ends: 20403 [2022-03-15 16:11:37,016 INFO L226 Difference]: Without dead ends: 20020 [2022-03-15 16:11:37,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11540 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1955, Invalid=27457, Unknown=0, NotChecked=0, Total=29412 [2022-03-15 16:11:37,020 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 1412 mSDsluCounter, 7772 mSDsCounter, 0 mSdLazyCounter, 8843 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 5254 SdHoareTripleChecker+Invalid, 9263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 8843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:37,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1412 Valid, 5254 Invalid, 9263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 8843 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-15 16:11:37,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20020 states. [2022-03-15 16:11:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20020 to 9545. [2022-03-15 16:11:37,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9545 states, 9544 states have (on average 3.5585708298407375) internal successors, (33963), 9544 states have internal predecessors, (33963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:37,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9545 states to 9545 states and 33963 transitions. [2022-03-15 16:11:37,298 INFO L78 Accepts]: Start accepts. Automaton has 9545 states and 33963 transitions. Word has length 47 [2022-03-15 16:11:37,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:37,298 INFO L470 AbstractCegarLoop]: Abstraction has 9545 states and 33963 transitions. [2022-03-15 16:11:37,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:37,299 INFO L276 IsEmpty]: Start isEmpty. Operand 9545 states and 33963 transitions. [2022-03-15 16:11:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:37,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:37,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:37,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-15 16:11:37,315 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:37,315 INFO L85 PathProgramCache]: Analyzing trace with hash 861406363, now seen corresponding path program 221 times [2022-03-15 16:11:37,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:37,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025032173] [2022-03-15 16:11:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:37,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:37,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:37,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025032173] [2022-03-15 16:11:37,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025032173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:37,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:37,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:11:37,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678206829] [2022-03-15 16:11:37,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:37,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:11:37,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:37,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:11:37,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:11:37,549 INFO L87 Difference]: Start difference. First operand 9545 states and 33963 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:42,570 INFO L93 Difference]: Finished difference Result 19152 states and 68026 transitions. [2022-03-15 16:11:42,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-03-15 16:11:42,571 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:42,613 INFO L225 Difference]: With dead ends: 19152 [2022-03-15 16:11:42,613 INFO L226 Difference]: Without dead ends: 19055 [2022-03-15 16:11:42,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5562 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1117, Invalid=14383, Unknown=0, NotChecked=0, Total=15500 [2022-03-15 16:11:42,614 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1035 mSDsluCounter, 6315 mSDsCounter, 0 mSdLazyCounter, 7273 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 4476 SdHoareTripleChecker+Invalid, 7457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 7273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:42,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 4476 Invalid, 7457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 7273 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-15 16:11:42,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19055 states. [2022-03-15 16:11:42,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19055 to 9571. [2022-03-15 16:11:42,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9571 states, 9570 states have (on average 3.5573667711598747) internal successors, (34044), 9570 states have internal predecessors, (34044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9571 states to 9571 states and 34044 transitions. [2022-03-15 16:11:42,828 INFO L78 Accepts]: Start accepts. Automaton has 9571 states and 34044 transitions. Word has length 47 [2022-03-15 16:11:42,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:42,828 INFO L470 AbstractCegarLoop]: Abstraction has 9571 states and 34044 transitions. [2022-03-15 16:11:42,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 9571 states and 34044 transitions. [2022-03-15 16:11:42,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:42,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:42,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:42,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-15 16:11:42,843 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:42,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:42,843 INFO L85 PathProgramCache]: Analyzing trace with hash -864014147, now seen corresponding path program 222 times [2022-03-15 16:11:42,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:42,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938995663] [2022-03-15 16:11:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:42,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:43,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:43,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938995663] [2022-03-15 16:11:43,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938995663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:43,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:43,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:11:43,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895010195] [2022-03-15 16:11:43,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:43,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:11:43,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:43,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:11:43,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:11:43,077 INFO L87 Difference]: Start difference. First operand 9571 states and 34044 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:49,891 INFO L93 Difference]: Finished difference Result 22580 states and 80326 transitions. [2022-03-15 16:11:49,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-15 16:11:49,892 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:49,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:49,946 INFO L225 Difference]: With dead ends: 22580 [2022-03-15 16:11:49,946 INFO L226 Difference]: Without dead ends: 22397 [2022-03-15 16:11:49,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11065 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1920, Invalid=26472, Unknown=0, NotChecked=0, Total=28392 [2022-03-15 16:11:49,948 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 1264 mSDsluCounter, 7761 mSDsCounter, 0 mSdLazyCounter, 9062 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 5425 SdHoareTripleChecker+Invalid, 9418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 9062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:49,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 5425 Invalid, 9418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 9062 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-15 16:11:49,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22397 states. [2022-03-15 16:11:50,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22397 to 9738. [2022-03-15 16:11:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9738 states, 9737 states have (on average 3.561055766663243) internal successors, (34674), 9737 states have internal predecessors, (34674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:50,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9738 states to 9738 states and 34674 transitions. [2022-03-15 16:11:50,230 INFO L78 Accepts]: Start accepts. Automaton has 9738 states and 34674 transitions. Word has length 47 [2022-03-15 16:11:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:50,230 INFO L470 AbstractCegarLoop]: Abstraction has 9738 states and 34674 transitions. [2022-03-15 16:11:50,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 9738 states and 34674 transitions. [2022-03-15 16:11:50,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:50,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:50,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:50,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-15 16:11:50,247 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:50,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:50,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1872368903, now seen corresponding path program 223 times [2022-03-15 16:11:50,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:50,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204812658] [2022-03-15 16:11:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:50,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:50,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:50,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204812658] [2022-03-15 16:11:50,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204812658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:50,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:50,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:11:50,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034312643] [2022-03-15 16:11:50,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:50,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:11:50,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:50,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:11:50,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:11:50,471 INFO L87 Difference]: Start difference. First operand 9738 states and 34674 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:53,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:53,889 INFO L93 Difference]: Finished difference Result 15750 states and 56134 transitions. [2022-03-15 16:11:53,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-15 16:11:53,889 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:53,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:53,929 INFO L225 Difference]: With dead ends: 15750 [2022-03-15 16:11:53,930 INFO L226 Difference]: Without dead ends: 15549 [2022-03-15 16:11:53,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2934 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=746, Invalid=7996, Unknown=0, NotChecked=0, Total=8742 [2022-03-15 16:11:53,931 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 827 mSDsluCounter, 4327 mSDsCounter, 0 mSdLazyCounter, 5260 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 5389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 5260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:53,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 3142 Invalid, 5389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 5260 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 16:11:53,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15549 states. [2022-03-15 16:11:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15549 to 10126. [2022-03-15 16:11:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10126 states, 10125 states have (on average 3.5689876543209875) internal successors, (36136), 10125 states have internal predecessors, (36136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:54,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10126 states to 10126 states and 36136 transitions. [2022-03-15 16:11:54,162 INFO L78 Accepts]: Start accepts. Automaton has 10126 states and 36136 transitions. Word has length 47 [2022-03-15 16:11:54,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:54,162 INFO L470 AbstractCegarLoop]: Abstraction has 10126 states and 36136 transitions. [2022-03-15 16:11:54,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:54,162 INFO L276 IsEmpty]: Start isEmpty. Operand 10126 states and 36136 transitions. [2022-03-15 16:11:54,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:54,179 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:54,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:54,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-15 16:11:54,179 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:54,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:54,179 INFO L85 PathProgramCache]: Analyzing trace with hash -237775175, now seen corresponding path program 224 times [2022-03-15 16:11:54,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:54,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028197456] [2022-03-15 16:11:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:54,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:54,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:54,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028197456] [2022-03-15 16:11:54,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028197456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:54,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:54,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:11:54,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326339105] [2022-03-15 16:11:54,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:54,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:11:54,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:54,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:11:54,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:11:54,438 INFO L87 Difference]: Start difference. First operand 10126 states and 36136 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:11:58,805 INFO L93 Difference]: Finished difference Result 17140 states and 60885 transitions. [2022-03-15 16:11:58,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-03-15 16:11:58,805 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:11:58,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:11:58,843 INFO L225 Difference]: With dead ends: 17140 [2022-03-15 16:11:58,843 INFO L226 Difference]: Without dead ends: 16867 [2022-03-15 16:11:58,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4636 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=963, Invalid=12147, Unknown=0, NotChecked=0, Total=13110 [2022-03-15 16:11:58,845 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 980 mSDsluCounter, 5586 mSDsCounter, 0 mSdLazyCounter, 6420 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 6611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 6420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:11:58,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 4096 Invalid, 6611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 6420 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-15 16:11:58,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16867 states. [2022-03-15 16:11:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16867 to 10162. [2022-03-15 16:11:59,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10162 states, 10161 states have (on average 3.571400452711347) internal successors, (36289), 10161 states have internal predecessors, (36289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10162 states to 10162 states and 36289 transitions. [2022-03-15 16:11:59,053 INFO L78 Accepts]: Start accepts. Automaton has 10162 states and 36289 transitions. Word has length 47 [2022-03-15 16:11:59,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:11:59,053 INFO L470 AbstractCegarLoop]: Abstraction has 10162 states and 36289 transitions. [2022-03-15 16:11:59,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:11:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 10162 states and 36289 transitions. [2022-03-15 16:11:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:11:59,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:11:59,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:11:59,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-15 16:11:59,070 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:11:59,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:11:59,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1355842139, now seen corresponding path program 225 times [2022-03-15 16:11:59,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:11:59,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457160084] [2022-03-15 16:11:59,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:11:59,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:11:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:11:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:11:59,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:11:59,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457160084] [2022-03-15 16:11:59,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457160084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:11:59,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:11:59,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:11:59,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885880972] [2022-03-15 16:11:59,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:11:59,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:11:59,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:11:59,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:11:59,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:11:59,291 INFO L87 Difference]: Start difference. First operand 10162 states and 36289 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:02,665 INFO L93 Difference]: Finished difference Result 15565 states and 55467 transitions. [2022-03-15 16:12:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-15 16:12:02,666 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:02,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:02,702 INFO L225 Difference]: With dead ends: 15565 [2022-03-15 16:12:02,702 INFO L226 Difference]: Without dead ends: 15364 [2022-03-15 16:12:02,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3166 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=780, Invalid=8532, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 16:12:02,703 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 864 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 5041 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 5178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 5041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:02,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 2962 Invalid, 5178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 5041 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 16:12:02,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15364 states. [2022-03-15 16:12:02,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15364 to 10162. [2022-03-15 16:12:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10162 states, 10161 states have (on average 3.571400452711347) internal successors, (36289), 10161 states have internal predecessors, (36289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10162 states to 10162 states and 36289 transitions. [2022-03-15 16:12:02,906 INFO L78 Accepts]: Start accepts. Automaton has 10162 states and 36289 transitions. Word has length 47 [2022-03-15 16:12:02,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:02,907 INFO L470 AbstractCegarLoop]: Abstraction has 10162 states and 36289 transitions. [2022-03-15 16:12:02,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10162 states and 36289 transitions. [2022-03-15 16:12:02,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:02,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:02,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:02,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-15 16:12:02,923 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:02,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:02,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1570695495, now seen corresponding path program 226 times [2022-03-15 16:12:02,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:02,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489273036] [2022-03-15 16:12:02,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:02,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:03,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:03,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489273036] [2022-03-15 16:12:03,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489273036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:03,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:03,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:12:03,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168245399] [2022-03-15 16:12:03,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:03,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:12:03,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:03,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:12:03,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:12:03,154 INFO L87 Difference]: Start difference. First operand 10162 states and 36289 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:09,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:09,234 INFO L93 Difference]: Finished difference Result 19321 states and 68760 transitions. [2022-03-15 16:12:09,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-03-15 16:12:09,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:09,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:09,278 INFO L225 Difference]: With dead ends: 19321 [2022-03-15 16:12:09,278 INFO L226 Difference]: Without dead ends: 18685 [2022-03-15 16:12:09,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8416 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1546, Invalid=20506, Unknown=0, NotChecked=0, Total=22052 [2022-03-15 16:12:09,280 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1221 mSDsluCounter, 7576 mSDsCounter, 0 mSdLazyCounter, 8776 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 5475 SdHoareTripleChecker+Invalid, 9045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 8776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:09,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 5475 Invalid, 9045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 8776 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-15 16:12:09,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18685 states. [2022-03-15 16:12:09,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18685 to 10501. [2022-03-15 16:12:09,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10501 states, 10500 states have (on average 3.570952380952381) internal successors, (37495), 10500 states have internal predecessors, (37495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:09,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10501 states to 10501 states and 37495 transitions. [2022-03-15 16:12:09,517 INFO L78 Accepts]: Start accepts. Automaton has 10501 states and 37495 transitions. Word has length 47 [2022-03-15 16:12:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:09,517 INFO L470 AbstractCegarLoop]: Abstraction has 10501 states and 37495 transitions. [2022-03-15 16:12:09,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 10501 states and 37495 transitions. [2022-03-15 16:12:09,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:09,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:09,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:09,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-15 16:12:09,535 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:09,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:09,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1015597541, now seen corresponding path program 227 times [2022-03-15 16:12:09,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:09,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638833885] [2022-03-15 16:12:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:09,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:09,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:09,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638833885] [2022-03-15 16:12:09,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638833885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:09,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:09,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 16:12:09,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802667092] [2022-03-15 16:12:09,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:09,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 16:12:09,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:09,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 16:12:09,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:12:09,758 INFO L87 Difference]: Start difference. First operand 10501 states and 37495 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:14,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:14,143 INFO L93 Difference]: Finished difference Result 17680 states and 63164 transitions. [2022-03-15 16:12:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-15 16:12:14,144 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:14,185 INFO L225 Difference]: With dead ends: 17680 [2022-03-15 16:12:14,185 INFO L226 Difference]: Without dead ends: 17406 [2022-03-15 16:12:14,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4314 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=990, Invalid=11220, Unknown=0, NotChecked=0, Total=12210 [2022-03-15 16:12:14,187 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 960 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 6644 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 3754 SdHoareTripleChecker+Invalid, 6848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 6644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:14,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 3754 Invalid, 6848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 6644 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-15 16:12:14,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17406 states. [2022-03-15 16:12:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17406 to 10660. [2022-03-15 16:12:14,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10659 states have (on average 3.5705037996059668) internal successors, (38058), 10659 states have internal predecessors, (38058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 38058 transitions. [2022-03-15 16:12:14,419 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 38058 transitions. Word has length 47 [2022-03-15 16:12:14,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:14,419 INFO L470 AbstractCegarLoop]: Abstraction has 10660 states and 38058 transitions. [2022-03-15 16:12:14,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:14,419 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 38058 transitions. [2022-03-15 16:12:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:14,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:14,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:14,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-15 16:12:14,436 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:14,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash 618996187, now seen corresponding path program 228 times [2022-03-15 16:12:14,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:14,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545297533] [2022-03-15 16:12:14,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:14,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:14,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:14,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:14,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545297533] [2022-03-15 16:12:14,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545297533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:14,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:14,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:12:14,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316717182] [2022-03-15 16:12:14,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:14,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:12:14,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:14,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:12:14,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:12:14,667 INFO L87 Difference]: Start difference. First operand 10660 states and 38058 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:20,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:20,016 INFO L93 Difference]: Finished difference Result 18986 states and 67756 transitions. [2022-03-15 16:12:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-15 16:12:20,016 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:20,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:20,063 INFO L225 Difference]: With dead ends: 18986 [2022-03-15 16:12:20,063 INFO L226 Difference]: Without dead ends: 18819 [2022-03-15 16:12:20,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6496 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1214, Invalid=16342, Unknown=0, NotChecked=0, Total=17556 [2022-03-15 16:12:20,065 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1133 mSDsluCounter, 6865 mSDsCounter, 0 mSdLazyCounter, 8237 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 4956 SdHoareTripleChecker+Invalid, 8517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 8237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:20,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 4956 Invalid, 8517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 8237 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-15 16:12:20,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18819 states. [2022-03-15 16:12:20,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18819 to 10806. [2022-03-15 16:12:20,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 3.5742711707542805) internal successors, (38620), 10805 states have internal predecessors, (38620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 38620 transitions. [2022-03-15 16:12:20,383 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 38620 transitions. Word has length 47 [2022-03-15 16:12:20,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:20,383 INFO L470 AbstractCegarLoop]: Abstraction has 10806 states and 38620 transitions. [2022-03-15 16:12:20,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:20,384 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 38620 transitions. [2022-03-15 16:12:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:20,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:20,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:20,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-15 16:12:20,401 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2074403843, now seen corresponding path program 229 times [2022-03-15 16:12:20,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:20,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374606159] [2022-03-15 16:12:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:20,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:20,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:20,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374606159] [2022-03-15 16:12:20,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374606159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:20,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:20,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:12:20,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567470938] [2022-03-15 16:12:20,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:20,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:12:20,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:20,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:12:20,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:12:20,630 INFO L87 Difference]: Start difference. First operand 10806 states and 38620 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:26,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:26,771 INFO L93 Difference]: Finished difference Result 21071 states and 75038 transitions. [2022-03-15 16:12:26,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-15 16:12:26,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:26,820 INFO L225 Difference]: With dead ends: 21071 [2022-03-15 16:12:26,820 INFO L226 Difference]: Without dead ends: 20812 [2022-03-15 16:12:26,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9197 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1649, Invalid=22221, Unknown=0, NotChecked=0, Total=23870 [2022-03-15 16:12:26,821 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1324 mSDsluCounter, 6410 mSDsCounter, 0 mSdLazyCounter, 7638 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 4623 SdHoareTripleChecker+Invalid, 8075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 7638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:26,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 4623 Invalid, 8075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 7638 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-15 16:12:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20812 states. [2022-03-15 16:12:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20812 to 10804. [2022-03-15 16:12:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10804 states, 10803 states have (on average 3.5761362584467276) internal successors, (38633), 10803 states have internal predecessors, (38633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:27,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10804 states to 10804 states and 38633 transitions. [2022-03-15 16:12:27,080 INFO L78 Accepts]: Start accepts. Automaton has 10804 states and 38633 transitions. Word has length 47 [2022-03-15 16:12:27,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:27,080 INFO L470 AbstractCegarLoop]: Abstraction has 10804 states and 38633 transitions. [2022-03-15 16:12:27,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:27,081 INFO L276 IsEmpty]: Start isEmpty. Operand 10804 states and 38633 transitions. [2022-03-15 16:12:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:27,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:27,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:27,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-15 16:12:27,099 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:27,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:27,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1056864505, now seen corresponding path program 230 times [2022-03-15 16:12:27,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:27,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95517062] [2022-03-15 16:12:27,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:27,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:27,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:27,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95517062] [2022-03-15 16:12:27,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95517062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:27,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:27,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:12:27,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630010493] [2022-03-15 16:12:27,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:27,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:12:27,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:27,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:12:27,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:12:27,334 INFO L87 Difference]: Start difference. First operand 10804 states and 38633 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:34,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:34,105 INFO L93 Difference]: Finished difference Result 23989 states and 85930 transitions. [2022-03-15 16:12:34,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-03-15 16:12:34,105 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:34,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:34,164 INFO L225 Difference]: With dead ends: 23989 [2022-03-15 16:12:34,164 INFO L226 Difference]: Without dead ends: 23360 [2022-03-15 16:12:34,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10181 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1804, Invalid=24278, Unknown=0, NotChecked=0, Total=26082 [2022-03-15 16:12:34,166 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1293 mSDsluCounter, 7380 mSDsCounter, 0 mSdLazyCounter, 8793 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 9193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 8793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:34,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 5006 Invalid, 9193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 8793 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-15 16:12:34,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23360 states. [2022-03-15 16:12:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23360 to 11248. [2022-03-15 16:12:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11248 states, 11247 states have (on average 3.5828220858895707) internal successors, (40296), 11247 states have internal predecessors, (40296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11248 states to 11248 states and 40296 transitions. [2022-03-15 16:12:34,453 INFO L78 Accepts]: Start accepts. Automaton has 11248 states and 40296 transitions. Word has length 47 [2022-03-15 16:12:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:34,453 INFO L470 AbstractCegarLoop]: Abstraction has 11248 states and 40296 transitions. [2022-03-15 16:12:34,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 11248 states and 40296 transitions. [2022-03-15 16:12:34,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:34,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:34,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:34,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-15 16:12:34,472 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:34,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:34,472 INFO L85 PathProgramCache]: Analyzing trace with hash -396165737, now seen corresponding path program 231 times [2022-03-15 16:12:34,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:34,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714716782] [2022-03-15 16:12:34,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:34,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:34,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:34,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:34,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714716782] [2022-03-15 16:12:34,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714716782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:34,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:34,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:12:34,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627490682] [2022-03-15 16:12:34,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:34,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:12:34,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:34,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:12:34,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:12:34,737 INFO L87 Difference]: Start difference. First operand 11248 states and 40296 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:39,646 INFO L93 Difference]: Finished difference Result 19686 states and 70270 transitions. [2022-03-15 16:12:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-15 16:12:39,646 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:39,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:39,693 INFO L225 Difference]: With dead ends: 19686 [2022-03-15 16:12:39,693 INFO L226 Difference]: Without dead ends: 19212 [2022-03-15 16:12:39,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4707 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1119, Invalid=12453, Unknown=0, NotChecked=0, Total=13572 [2022-03-15 16:12:39,695 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1160 mSDsluCounter, 5975 mSDsCounter, 0 mSdLazyCounter, 7034 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 4134 SdHoareTripleChecker+Invalid, 7322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 7034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:39,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 4134 Invalid, 7322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 7034 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-15 16:12:39,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19212 states. [2022-03-15 16:12:39,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19212 to 11340. [2022-03-15 16:12:39,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11340 states, 11339 states have (on average 3.582502866213952) internal successors, (40622), 11339 states have internal predecessors, (40622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11340 states to 11340 states and 40622 transitions. [2022-03-15 16:12:39,991 INFO L78 Accepts]: Start accepts. Automaton has 11340 states and 40622 transitions. Word has length 47 [2022-03-15 16:12:39,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:39,991 INFO L470 AbstractCegarLoop]: Abstraction has 11340 states and 40622 transitions. [2022-03-15 16:12:39,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:39,991 INFO L276 IsEmpty]: Start isEmpty. Operand 11340 states and 40622 transitions. [2022-03-15 16:12:40,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:40,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:40,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:40,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-15 16:12:40,011 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:40,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash -462228295, now seen corresponding path program 232 times [2022-03-15 16:12:40,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:40,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694039154] [2022-03-15 16:12:40,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:40,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:40,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:40,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694039154] [2022-03-15 16:12:40,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694039154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:40,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:40,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:12:40,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299350862] [2022-03-15 16:12:40,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:40,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:12:40,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:12:40,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:12:40,243 INFO L87 Difference]: Start difference. First operand 11340 states and 40622 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:45,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:45,531 INFO L93 Difference]: Finished difference Result 20048 states and 71629 transitions. [2022-03-15 16:12:45,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-15 16:12:45,532 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:45,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:45,582 INFO L225 Difference]: With dead ends: 20048 [2022-03-15 16:12:45,582 INFO L226 Difference]: Without dead ends: 19715 [2022-03-15 16:12:45,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5753 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1191, Invalid=14811, Unknown=0, NotChecked=0, Total=16002 [2022-03-15 16:12:45,583 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1207 mSDsluCounter, 6414 mSDsCounter, 0 mSdLazyCounter, 7709 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 4679 SdHoareTripleChecker+Invalid, 8038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 7709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:45,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 4679 Invalid, 8038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 7709 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-15 16:12:45,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19715 states. [2022-03-15 16:12:45,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19715 to 11547. [2022-03-15 16:12:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11547 states, 11546 states have (on average 3.577775853109302) internal successors, (41309), 11546 states have internal predecessors, (41309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11547 states to 11547 states and 41309 transitions. [2022-03-15 16:12:45,855 INFO L78 Accepts]: Start accepts. Automaton has 11547 states and 41309 transitions. Word has length 47 [2022-03-15 16:12:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:45,855 INFO L470 AbstractCegarLoop]: Abstraction has 11547 states and 41309 transitions. [2022-03-15 16:12:45,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 11547 states and 41309 transitions. [2022-03-15 16:12:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:45,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:45,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:45,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-15 16:12:45,874 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:45,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:45,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1719882533, now seen corresponding path program 233 times [2022-03-15 16:12:45,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:45,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866265085] [2022-03-15 16:12:45,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:45,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:46,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:46,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:46,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866265085] [2022-03-15 16:12:46,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866265085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:46,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:46,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:12:46,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516614165] [2022-03-15 16:12:46,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:46,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:12:46,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:46,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:12:46,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:12:46,111 INFO L87 Difference]: Start difference. First operand 11547 states and 41309 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:52,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:12:52,668 INFO L93 Difference]: Finished difference Result 21886 states and 78200 transitions. [2022-03-15 16:12:52,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-03-15 16:12:52,668 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:12:52,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:12:52,720 INFO L225 Difference]: With dead ends: 21886 [2022-03-15 16:12:52,720 INFO L226 Difference]: Without dead ends: 21403 [2022-03-15 16:12:52,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10019 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1741, Invalid=24019, Unknown=0, NotChecked=0, Total=25760 [2022-03-15 16:12:52,722 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 1296 mSDsluCounter, 7710 mSDsCounter, 0 mSdLazyCounter, 9139 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 5559 SdHoareTripleChecker+Invalid, 9483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 9139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:12:52,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 5559 Invalid, 9483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 9139 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-15 16:12:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21403 states. [2022-03-15 16:12:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21403 to 11708. [2022-03-15 16:12:52,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11708 states, 11707 states have (on average 3.57948236098061) internal successors, (41905), 11707 states have internal predecessors, (41905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:53,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11708 states to 11708 states and 41905 transitions. [2022-03-15 16:12:53,019 INFO L78 Accepts]: Start accepts. Automaton has 11708 states and 41905 transitions. Word has length 47 [2022-03-15 16:12:53,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:12:53,019 INFO L470 AbstractCegarLoop]: Abstraction has 11708 states and 41905 transitions. [2022-03-15 16:12:53,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:12:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand 11708 states and 41905 transitions. [2022-03-15 16:12:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:12:53,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:12:53,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:12:53,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-15 16:12:53,039 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:12:53,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:12:53,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1451219203, now seen corresponding path program 234 times [2022-03-15 16:12:53,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:12:53,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580911287] [2022-03-15 16:12:53,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:12:53,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:12:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:12:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:12:53,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:12:53,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580911287] [2022-03-15 16:12:53,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580911287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:12:53,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:12:53,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:12:53,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071752941] [2022-03-15 16:12:53,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:12:53,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:12:53,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:12:53,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:12:53,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:12:53,271 INFO L87 Difference]: Start difference. First operand 11708 states and 41905 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:00,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:13:00,925 INFO L93 Difference]: Finished difference Result 24655 states and 88051 transitions. [2022-03-15 16:13:00,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-03-15 16:13:00,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:13:00,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:13:00,986 INFO L225 Difference]: With dead ends: 24655 [2022-03-15 16:13:00,986 INFO L226 Difference]: Without dead ends: 24445 [2022-03-15 16:13:00,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14334 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2151, Invalid=33381, Unknown=0, NotChecked=0, Total=35532 [2022-03-15 16:13:00,987 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1439 mSDsluCounter, 8196 mSDsCounter, 0 mSdLazyCounter, 9416 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 5681 SdHoareTripleChecker+Invalid, 9901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 9416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:13:00,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1439 Valid, 5681 Invalid, 9901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 9416 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-15 16:13:01,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24445 states. [2022-03-15 16:13:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24445 to 11631. [2022-03-15 16:13:01,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11631 states, 11630 states have (on average 3.5825451418744625) internal successors, (41665), 11630 states have internal predecessors, (41665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:01,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11631 states to 11631 states and 41665 transitions. [2022-03-15 16:13:01,283 INFO L78 Accepts]: Start accepts. Automaton has 11631 states and 41665 transitions. Word has length 47 [2022-03-15 16:13:01,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:13:01,283 INFO L470 AbstractCegarLoop]: Abstraction has 11631 states and 41665 transitions. [2022-03-15 16:13:01,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 11631 states and 41665 transitions. [2022-03-15 16:13:01,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:13:01,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:13:01,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:13:01,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-15 16:13:01,303 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:13:01,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:13:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash 120202233, now seen corresponding path program 235 times [2022-03-15 16:13:01,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:13:01,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730656841] [2022-03-15 16:13:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:13:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:13:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:13:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:13:01,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:13:01,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730656841] [2022-03-15 16:13:01,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730656841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:13:01,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:13:01,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:13:01,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581619293] [2022-03-15 16:13:01,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:13:01,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:13:01,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:13:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:13:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:13:01,538 INFO L87 Difference]: Start difference. First operand 11631 states and 41665 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:08,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:13:08,983 INFO L93 Difference]: Finished difference Result 25521 states and 91530 transitions. [2022-03-15 16:13:08,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-03-15 16:13:08,983 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:13:08,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:13:09,050 INFO L225 Difference]: With dead ends: 25521 [2022-03-15 16:13:09,050 INFO L226 Difference]: Without dead ends: 24833 [2022-03-15 16:13:09,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12097 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1913, Invalid=28537, Unknown=0, NotChecked=0, Total=30450 [2022-03-15 16:13:09,053 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 1225 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 10192 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 6116 SdHoareTripleChecker+Invalid, 10557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 10192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-15 16:13:09,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 6116 Invalid, 10557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 10192 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-15 16:13:09,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24833 states. [2022-03-15 16:13:09,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24833 to 12061. [2022-03-15 16:13:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12061 states, 12060 states have (on average 3.5893864013266996) internal successors, (43288), 12060 states have internal predecessors, (43288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12061 states to 12061 states and 43288 transitions. [2022-03-15 16:13:09,411 INFO L78 Accepts]: Start accepts. Automaton has 12061 states and 43288 transitions. Word has length 47 [2022-03-15 16:13:09,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:13:09,411 INFO L470 AbstractCegarLoop]: Abstraction has 12061 states and 43288 transitions. [2022-03-15 16:13:09,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:09,412 INFO L276 IsEmpty]: Start isEmpty. Operand 12061 states and 43288 transitions. [2022-03-15 16:13:09,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:13:09,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:13:09,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:13:09,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-15 16:13:09,432 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:13:09,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:13:09,432 INFO L85 PathProgramCache]: Analyzing trace with hash 419093911, now seen corresponding path program 236 times [2022-03-15 16:13:09,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:13:09,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877191669] [2022-03-15 16:13:09,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:13:09,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:13:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:13:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:13:09,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:13:09,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877191669] [2022-03-15 16:13:09,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877191669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:13:09,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:13:09,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:13:09,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822973866] [2022-03-15 16:13:09,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:13:09,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:13:09,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:13:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:13:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:13:09,662 INFO L87 Difference]: Start difference. First operand 12061 states and 43288 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:16,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:13:16,955 INFO L93 Difference]: Finished difference Result 25860 states and 92602 transitions. [2022-03-15 16:13:16,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-15 16:13:16,956 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-15 16:13:16,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:13:17,032 INFO L225 Difference]: With dead ends: 25860 [2022-03-15 16:13:17,032 INFO L226 Difference]: Without dead ends: 25280 [2022-03-15 16:13:17,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11270 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1932, Invalid=26798, Unknown=0, NotChecked=0, Total=28730 [2022-03-15 16:13:17,035 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1266 mSDsluCounter, 7431 mSDsCounter, 0 mSdLazyCounter, 8456 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 5224 SdHoareTripleChecker+Invalid, 8836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 8456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:13:17,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 5224 Invalid, 8836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 8456 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-15 16:13:17,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25280 states. [2022-03-15 16:13:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25280 to 12784. [2022-03-15 16:13:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12784 states, 12783 states have (on average 3.6001721035750607) internal successors, (46021), 12783 states have internal predecessors, (46021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12784 states to 12784 states and 46021 transitions. [2022-03-15 16:13:17,367 INFO L78 Accepts]: Start accepts. Automaton has 12784 states and 46021 transitions. Word has length 47 [2022-03-15 16:13:17,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:13:17,367 INFO L470 AbstractCegarLoop]: Abstraction has 12784 states and 46021 transitions. [2022-03-15 16:13:17,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:13:17,367 INFO L276 IsEmpty]: Start isEmpty. Operand 12784 states and 46021 transitions. [2022-03-15 16:13:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-15 16:13:17,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:13:17,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:13:17,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-15 16:13:17,389 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 16:13:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:13:17,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1306326599, now seen corresponding path program 237 times [2022-03-15 16:13:17,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:13:17,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65660209] [2022-03-15 16:13:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:13:17,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:13:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:13:17,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:13:17,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:13:17,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65660209] [2022-03-15 16:13:17,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65660209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:13:17,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:13:17,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 16:13:17,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490475514] [2022-03-15 16:13:17,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:13:17,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 16:13:17,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:13:17,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 16:13:17,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:13:17,620 INFO L87 Difference]: Start difference. First operand 12784 states and 46021 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-15 16:13:18,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 16:13:18,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=266, Invalid=2086, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 16:13:18,999 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 16:13:18,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 690 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 16:13:19,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (10 of 11 remaining) [2022-03-15 16:13:19,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-15 16:13:19,000 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0INUSE_VIOLATION (9 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1INUSE_VIOLATION (8 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (7 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8INUSE_VIOLATION (6 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err7INUSE_VIOLATION (5 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err9INUSE_VIOLATION (4 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork2Err3INUSE_VIOLATION (3 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork2Err4INUSE_VIOLATION (2 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Thread1of1ForFork4Err5INUSE_VIOLATION (1 of 11 remaining) [2022-03-15 16:13:19,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Thread1of1ForFork4Err6INUSE_VIOLATION (0 of 11 remaining) [2022-03-15 16:13:19,003 INFO L732 BasicCegarLoop]: Path program histogram: [237] [2022-03-15 16:13:19,005 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 16:13:19,005 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 16:13:19,006 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 04:13:19 BasicIcfg [2022-03-15 16:13:19,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 16:13:19,006 INFO L158 Benchmark]: Toolchain (without parser) took 712236.23ms. Allocated memory was 187.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 145.4MB in the beginning and 907.1MB in the end (delta: -761.8MB). Peak memory consumption was 287.3MB. Max. memory is 8.0GB. [2022-03-15 16:13:19,006 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 16:13:19,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.00ms. Allocated memory is still 187.7MB. Free memory was 145.3MB in the beginning and 143.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 16:13:19,006 INFO L158 Benchmark]: Boogie Preprocessor took 11.28ms. Allocated memory is still 187.7MB. Free memory was 143.7MB in the beginning and 142.8MB in the end (delta: 937.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 16:13:19,006 INFO L158 Benchmark]: RCFGBuilder took 213.24ms. Allocated memory is still 187.7MB. Free memory was 142.8MB in the beginning and 133.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-15 16:13:19,007 INFO L158 Benchmark]: TraceAbstraction took 711987.82ms. Allocated memory was 187.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 132.7MB in the beginning and 907.1MB in the end (delta: -774.5MB). Peak memory consumption was 274.8MB. Max. memory is 8.0GB. [2022-03-15 16:13:19,008 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 187.7MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.00ms. Allocated memory is still 187.7MB. Free memory was 145.3MB in the beginning and 143.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.28ms. Allocated memory is still 187.7MB. Free memory was 143.7MB in the beginning and 142.8MB in the end (delta: 937.4kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 213.24ms. Allocated memory is still 187.7MB. Free memory was 142.8MB in the beginning and 133.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 711987.82ms. Allocated memory was 187.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 132.7MB in the beginning and 907.1MB in the end (delta: -774.5MB). Peak memory consumption was 274.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (12784states) and FLOYD_HOARE automaton (currently 42 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 112 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 711.8s, OverallIterations: 237, TraceHistogramMax: 1, PathProgramHistogramMax: 237, EmptinessCheckTime: 2.7s, AutomataDifference: 616.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153906 SdHoareTripleChecker+Valid, 333.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153906 mSDsluCounter, 546077 SdHoareTripleChecker+Invalid, 278.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 845049 mSDsCounter, 23901 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1002853 IncrementalHoareTripleChecker+Invalid, 1026754 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23901 mSolverCounterUnsat, 49772 mSDtfsCounter, 1002853 mSolverCounterSat, 2.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16933 GetRequests, 272 SyntacticMatches, 521 SemanticMatches, 16139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473425 ImplicationChecksByTransitivity, 284.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12784occurred in iteration=236, InterpolantAutomatonStates: 15081, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 33.0s AutomataMinimizationTime, 236 MinimizatonAttempts, 774182 StatesRemovedByMinimization, 234 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 57.3s InterpolantComputationTime, 11139 NumberOfCodeBlocks, 11139 NumberOfCodeBlocksAsserted, 237 NumberOfCheckSat, 10902 ConstructedInterpolants, 0 QuantifiedInterpolants, 141361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 237 InterpolantComputations, 237 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown