/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/bench/exp2x9.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 15:42:00,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 15:42:00,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 15:42:00,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 15:42:00,453 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 15:42:00,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 15:42:00,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 15:42:00,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 15:42:00,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 15:42:00,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 15:42:00,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 15:42:00,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 15:42:00,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 15:42:00,481 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 15:42:00,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 15:42:00,481 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 15:42:00,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 15:42:00,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 15:42:00,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 15:42:00,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 15:42:00,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 15:42:00,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 15:42:00,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:42:00,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 15:42:00,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 15:42:00,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 15:42:00,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 15:42:00,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 15:42:00,485 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 15:42:00,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 15:42:00,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 15:42:00,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 15:42:00,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 15:42:00,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 15:42:00,686 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 15:42:00,687 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 15:42:00,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl [2022-03-15 15:42:00,688 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl' [2022-03-15 15:42:00,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 15:42:00,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 15:42:00,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 15:42:00,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 15:42:00,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 15:42:00,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,730 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 15:42:00,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 15:42:00,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 15:42:00,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 15:42:00,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 15:42:00,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 15:42:00,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 15:42:00,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 15:42:00,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 15:42:00,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/1) ... [2022-03-15 15:42:00,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:42:00,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:42:00,788 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 15:42:00,807 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 15:42:00,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 15:42:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 15:42:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 15:42:00,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 15:42:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 15:42:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 15:42:00,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 15:42:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 15:42:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 15:42:00,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 15:42:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 15:42:00,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 15:42:00,843 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-15 15:42:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 15:42:00,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 15:42:00,844 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 15:42:00,881 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 15:42:00,882 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 15:42:00,965 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 15:42:00,970 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 15:42:00,970 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 15:42:00,971 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:42:00 BoogieIcfgContainer [2022-03-15 15:42:00,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 15:42:00,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 15:42:00,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 15:42:00,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 15:42:00,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:42:00" (1/2) ... [2022-03-15 15:42:00,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1724a2 and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:42:00, skipping insertion in model container [2022-03-15 15:42:00,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:42:00" (2/2) ... [2022-03-15 15:42:00,979 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x9.wvr.bpl [2022-03-15 15:42:00,982 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 15:42:00,982 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 15:42:00,982 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 15:42:00,983 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 15:42:01,046 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 15:42:01,072 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 15:42:01,076 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 15:42:01,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 15:42:01,082 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 57 transitions, 146 flow [2022-03-15 15:42:01,550 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12225 states, 12224 states have (on average 3.9794666230366493) internal successors, (48645), 12224 states have internal predecessors, (48645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 12225 states, 12224 states have (on average 3.9794666230366493) internal successors, (48645), 12224 states have internal predecessors, (48645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:01,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 15:42:01,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:01,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:42:01,636 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:01,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:01,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1817176082, now seen corresponding path program 1 times [2022-03-15 15:42:01,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:01,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465920008] [2022-03-15 15:42:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:01,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:01,851 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 15:42:01,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:01,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465920008] [2022-03-15 15:42:01,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465920008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:01,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:01,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 15:42:01,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171252219] [2022-03-15 15:42:01,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:01,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:42:01,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:42:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:42:01,907 INFO L87 Difference]: Start difference. First operand has 12225 states, 12224 states have (on average 3.9794666230366493) internal successors, (48645), 12224 states have internal predecessors, (48645), 0 states have call successors, (0), 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 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:02,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:02,194 INFO L93 Difference]: Finished difference Result 12650 states and 50294 transitions. [2022-03-15 15:42:02,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:42:02,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 15:42:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:02,410 INFO L225 Difference]: With dead ends: 12650 [2022-03-15 15:42:02,434 INFO L226 Difference]: Without dead ends: 12619 [2022-03-15 15:42:02,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:42:02,439 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:02,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 36 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:42:02,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12619 states. [2022-03-15 15:42:02,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12619 to 12354. [2022-03-15 15:42:03,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 12353 states have (on average 3.977900105237594) internal successors, (49139), 12353 states have internal predecessors, (49139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 49139 transitions. [2022-03-15 15:42:03,059 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 49139 transitions. Word has length 19 [2022-03-15 15:42:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:03,060 INFO L470 AbstractCegarLoop]: Abstraction has 12354 states and 49139 transitions. [2022-03-15 15:42:03,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:03,062 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 49139 transitions. [2022-03-15 15:42:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:42:03,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:03,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 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 15:42:03,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 15:42:03,095 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:03,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:03,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1924913497, now seen corresponding path program 1 times [2022-03-15 15:42:03,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:03,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648021643] [2022-03-15 15:42:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:03,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:03,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:03,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648021643] [2022-03-15 15:42:03,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648021643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:03,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:03,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:42:03,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640360438] [2022-03-15 15:42:03,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:03,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:42:03,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:03,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:42:03,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:42:03,177 INFO L87 Difference]: Start difference. First operand 12354 states and 49139 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:03,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:03,514 INFO L93 Difference]: Finished difference Result 19078 states and 74517 transitions. [2022-03-15 15:42:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:42:03,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 15:42:03,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:03,692 INFO L225 Difference]: With dead ends: 19078 [2022-03-15 15:42:03,692 INFO L226 Difference]: Without dead ends: 19078 [2022-03-15 15:42:03,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 15:42:03,703 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 89 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:03,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 101 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:42:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19078 states. [2022-03-15 15:42:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19078 to 13566. [2022-03-15 15:42:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13566 states, 13565 states have (on average 3.9962403243641726) internal successors, (54209), 13565 states have internal predecessors, (54209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:04,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13566 states to 13566 states and 54209 transitions. [2022-03-15 15:42:04,363 INFO L78 Accepts]: Start accepts. Automaton has 13566 states and 54209 transitions. Word has length 27 [2022-03-15 15:42:04,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:04,363 INFO L470 AbstractCegarLoop]: Abstraction has 13566 states and 54209 transitions. [2022-03-15 15:42:04,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:04,363 INFO L276 IsEmpty]: Start isEmpty. Operand 13566 states and 54209 transitions. [2022-03-15 15:42:04,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:42:04,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:04,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:42:04,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 15:42:04,401 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:04,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:04,403 INFO L85 PathProgramCache]: Analyzing trace with hash -961019923, now seen corresponding path program 1 times [2022-03-15 15:42:04,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:04,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535614480] [2022-03-15 15:42:04,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:04,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:04,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:04,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535614480] [2022-03-15 15:42:04,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535614480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:04,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:04,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:42:04,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104859777] [2022-03-15 15:42:04,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:04,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:42:04,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:04,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:42:04,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:42:04,465 INFO L87 Difference]: Start difference. First operand 13566 states and 54209 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:04,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:04,733 INFO L93 Difference]: Finished difference Result 19630 states and 77107 transitions. [2022-03-15 15:42:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:42:04,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 15:42:04,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:04,810 INFO L225 Difference]: With dead ends: 19630 [2022-03-15 15:42:04,811 INFO L226 Difference]: Without dead ends: 19630 [2022-03-15 15:42:04,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 15:42:04,816 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 83 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:04,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 121 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:42:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19630 states. [2022-03-15 15:42:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19630 to 15003. [2022-03-15 15:42:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15003 states, 15002 states have (on average 4.021930409278763) internal successors, (60337), 15002 states have internal predecessors, (60337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15003 states to 15003 states and 60337 transitions. [2022-03-15 15:42:05,522 INFO L78 Accepts]: Start accepts. Automaton has 15003 states and 60337 transitions. Word has length 27 [2022-03-15 15:42:05,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:05,522 INFO L470 AbstractCegarLoop]: Abstraction has 15003 states and 60337 transitions. [2022-03-15 15:42:05,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:05,523 INFO L276 IsEmpty]: Start isEmpty. Operand 15003 states and 60337 transitions. [2022-03-15 15:42:05,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:42:05,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:05,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:42:05,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 15:42:05,564 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:05,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:05,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1657381619, now seen corresponding path program 1 times [2022-03-15 15:42:05,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:05,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904480466] [2022-03-15 15:42:05,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:05,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:05,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:05,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:05,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904480466] [2022-03-15 15:42:05,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904480466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:05,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:05,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:42:05,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256091803] [2022-03-15 15:42:05,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:05,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:42:05,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:05,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:42:05,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:42:05,600 INFO L87 Difference]: Start difference. First operand 15003 states and 60337 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:05,993 INFO L93 Difference]: Finished difference Result 17397 states and 69147 transitions. [2022-03-15 15:42:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:42:05,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 15:42:05,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:06,091 INFO L225 Difference]: With dead ends: 17397 [2022-03-15 15:42:06,091 INFO L226 Difference]: Without dead ends: 17389 [2022-03-15 15:42:06,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 15:42:06,095 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 98 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:06,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 121 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:42:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17389 states. [2022-03-15 15:42:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17389 to 15239. [2022-03-15 15:42:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15239 states, 15238 states have (on average 4.012009450059063) internal successors, (61135), 15238 states have internal predecessors, (61135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15239 states to 15239 states and 61135 transitions. [2022-03-15 15:42:06,632 INFO L78 Accepts]: Start accepts. Automaton has 15239 states and 61135 transitions. Word has length 27 [2022-03-15 15:42:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:06,633 INFO L470 AbstractCegarLoop]: Abstraction has 15239 states and 61135 transitions. [2022-03-15 15:42:06,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 15239 states and 61135 transitions. [2022-03-15 15:42:06,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:42:06,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:06,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 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 15:42:06,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 15:42:06,671 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:06,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:06,672 INFO L85 PathProgramCache]: Analyzing trace with hash 531191895, now seen corresponding path program 1 times [2022-03-15 15:42:06,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:06,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880359797] [2022-03-15 15:42:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:06,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:06,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:06,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880359797] [2022-03-15 15:42:06,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880359797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:06,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:06,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:42:06,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986629784] [2022-03-15 15:42:06,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:06,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:42:06,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:06,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:42:06,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:42:06,698 INFO L87 Difference]: Start difference. First operand 15239 states and 61135 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:07,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:07,037 INFO L93 Difference]: Finished difference Result 17433 states and 69120 transitions. [2022-03-15 15:42:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:42:07,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 15:42:07,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:07,110 INFO L225 Difference]: With dead ends: 17433 [2022-03-15 15:42:07,110 INFO L226 Difference]: Without dead ends: 17415 [2022-03-15 15:42:07,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 15:42:07,111 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 85 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:07,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 122 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:42:07,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2022-03-15 15:42:07,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 15481. [2022-03-15 15:42:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15481 states, 15480 states have (on average 4.002260981912145) internal successors, (61955), 15480 states have internal predecessors, (61955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15481 states to 15481 states and 61955 transitions. [2022-03-15 15:42:07,641 INFO L78 Accepts]: Start accepts. Automaton has 15481 states and 61955 transitions. Word has length 27 [2022-03-15 15:42:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:07,642 INFO L470 AbstractCegarLoop]: Abstraction has 15481 states and 61955 transitions. [2022-03-15 15:42:07,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:07,642 INFO L276 IsEmpty]: Start isEmpty. Operand 15481 states and 61955 transitions. [2022-03-15 15:42:07,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:42:07,675 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:07,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:42:07,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 15:42:07,675 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:07,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:07,675 INFO L85 PathProgramCache]: Analyzing trace with hash -253055853, now seen corresponding path program 2 times [2022-03-15 15:42:07,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:07,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319767534] [2022-03-15 15:42:07,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:07,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:07,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:07,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319767534] [2022-03-15 15:42:07,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319767534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:07,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:07,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:42:07,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603099122] [2022-03-15 15:42:07,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:07,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:42:07,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:07,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:42:07,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:42:07,708 INFO L87 Difference]: Start difference. First operand 15481 states and 61955 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:07,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:07,989 INFO L93 Difference]: Finished difference Result 18408 states and 73042 transitions. [2022-03-15 15:42:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:42:08,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 15:42:08,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:08,097 INFO L225 Difference]: With dead ends: 18408 [2022-03-15 15:42:08,097 INFO L226 Difference]: Without dead ends: 18408 [2022-03-15 15:42:08,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 15:42:08,098 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 86 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:08,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 102 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:42:08,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18408 states. [2022-03-15 15:42:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18408 to 16911. [2022-03-15 15:42:08,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16911 states, 16910 states have (on average 3.9978710821998815) internal successors, (67604), 16910 states have internal predecessors, (67604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:08,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16911 states to 16911 states and 67604 transitions. [2022-03-15 15:42:08,568 INFO L78 Accepts]: Start accepts. Automaton has 16911 states and 67604 transitions. Word has length 27 [2022-03-15 15:42:08,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:08,569 INFO L470 AbstractCegarLoop]: Abstraction has 16911 states and 67604 transitions. [2022-03-15 15:42:08,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 16911 states and 67604 transitions. [2022-03-15 15:42:08,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:42:08,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:08,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 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 15:42:08,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 15:42:08,604 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:08,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1382652649, now seen corresponding path program 2 times [2022-03-15 15:42:08,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:08,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626378563] [2022-03-15 15:42:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:08,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:08,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:08,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626378563] [2022-03-15 15:42:08,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626378563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:08,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:08,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:42:08,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801669566] [2022-03-15 15:42:08,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:08,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:42:08,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:08,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:42:08,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:42:08,643 INFO L87 Difference]: Start difference. First operand 16911 states and 67604 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:08,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:08,793 INFO L93 Difference]: Finished difference Result 18407 states and 72770 transitions. [2022-03-15 15:42:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:42:08,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 15:42:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:09,038 INFO L225 Difference]: With dead ends: 18407 [2022-03-15 15:42:09,038 INFO L226 Difference]: Without dead ends: 18376 [2022-03-15 15:42:09,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 15:42:09,039 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 92 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:09,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 122 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:42:09,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18376 states. [2022-03-15 15:42:09,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18376 to 17154. [2022-03-15 15:42:09,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17154 states, 17153 states have (on average 3.9884568297090888) internal successors, (68414), 17153 states have internal predecessors, (68414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17154 states to 17154 states and 68414 transitions. [2022-03-15 15:42:09,622 INFO L78 Accepts]: Start accepts. Automaton has 17154 states and 68414 transitions. Word has length 27 [2022-03-15 15:42:09,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:09,627 INFO L470 AbstractCegarLoop]: Abstraction has 17154 states and 68414 transitions. [2022-03-15 15:42:09,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:09,627 INFO L276 IsEmpty]: Start isEmpty. Operand 17154 states and 68414 transitions. [2022-03-15 15:42:09,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:42:09,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:09,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 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 15:42:09,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 15:42:09,662 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:09,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:09,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1664214835, now seen corresponding path program 2 times [2022-03-15 15:42:09,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:09,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549693840] [2022-03-15 15:42:09,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:09,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:09,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:09,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:09,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549693840] [2022-03-15 15:42:09,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549693840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:09,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:09,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:42:09,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962692317] [2022-03-15 15:42:09,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:09,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:42:09,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:09,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:42:09,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:42:09,699 INFO L87 Difference]: Start difference. First operand 17154 states and 68414 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:09,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:09,859 INFO L93 Difference]: Finished difference Result 20764 states and 82157 transitions. [2022-03-15 15:42:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:42:09,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 15:42:09,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:09,923 INFO L225 Difference]: With dead ends: 20764 [2022-03-15 15:42:09,923 INFO L226 Difference]: Without dead ends: 20764 [2022-03-15 15:42:09,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 15:42:09,924 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 91 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:09,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 122 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:42:09,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20764 states. [2022-03-15 15:42:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20764 to 18641. [2022-03-15 15:42:10,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18641 states, 18640 states have (on average 3.990450643776824) internal successors, (74382), 18640 states have internal predecessors, (74382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18641 states to 18641 states and 74382 transitions. [2022-03-15 15:42:10,429 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 74382 transitions. Word has length 27 [2022-03-15 15:42:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:10,430 INFO L470 AbstractCegarLoop]: Abstraction has 18641 states and 74382 transitions. [2022-03-15 15:42:10,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 74382 transitions. [2022-03-15 15:42:10,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:42:10,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:10,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 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 15:42:10,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 15:42:10,463 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:10,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:10,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2133714845, now seen corresponding path program 2 times [2022-03-15 15:42:10,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:10,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351205491] [2022-03-15 15:42:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:10,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:10,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:10,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351205491] [2022-03-15 15:42:10,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351205491] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:42:10,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:42:10,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:42:10,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36883021] [2022-03-15 15:42:10,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:42:10,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:42:10,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:10,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:42:10,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:42:10,663 INFO L87 Difference]: Start difference. First operand 18641 states and 74382 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:10,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:10,845 INFO L93 Difference]: Finished difference Result 20639 states and 81242 transitions. [2022-03-15 15:42:10,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:42:10,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 15:42:10,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:10,909 INFO L225 Difference]: With dead ends: 20639 [2022-03-15 15:42:10,909 INFO L226 Difference]: Without dead ends: 20611 [2022-03-15 15:42:10,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 15:42:10,910 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 97 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:10,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 123 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:42:10,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20611 states. [2022-03-15 15:42:11,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20611 to 19021. [2022-03-15 15:42:11,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 19020 states have (on average 3.982492113564669) internal successors, (75747), 19020 states have internal predecessors, (75747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:11,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 75747 transitions. [2022-03-15 15:42:11,464 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 75747 transitions. Word has length 27 [2022-03-15 15:42:11,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:11,465 INFO L470 AbstractCegarLoop]: Abstraction has 19021 states and 75747 transitions. [2022-03-15 15:42:11,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:11,465 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 75747 transitions. [2022-03-15 15:42:11,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 15:42:11,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:11,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:11,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 15:42:11,506 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:11,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:11,507 INFO L85 PathProgramCache]: Analyzing trace with hash 784676502, now seen corresponding path program 1 times [2022-03-15 15:42:11,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:11,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484396363] [2022-03-15 15:42:11,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:11,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:11,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:11,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:11,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484396363] [2022-03-15 15:42:11,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484396363] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 15:42:11,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267436360] [2022-03-15 15:42:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:11,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:42:11,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:42:11,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 15:42:11,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 15:42:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:11,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-15 15:42:11,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 15:42:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:14,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 15:42:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:42:14,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267436360] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 15:42:14,384 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 15:42:14,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 8] total 17 [2022-03-15 15:42:14,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667395781] [2022-03-15 15:42:14,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 15:42:14,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 15:42:14,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:42:14,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 15:42:14,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-03-15 15:42:14,385 INFO L87 Difference]: Start difference. First operand 19021 states and 75747 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:21,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:42:21,392 INFO L93 Difference]: Finished difference Result 23319 states and 91627 transitions. [2022-03-15 15:42:21,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 15:42:21,393 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-03-15 15:42:21,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:42:21,473 INFO L225 Difference]: With dead ends: 23319 [2022-03-15 15:42:21,474 INFO L226 Difference]: Without dead ends: 23183 [2022-03-15 15:42:21,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 15 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-03-15 15:42:21,474 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 245 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 4333 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 4539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 4333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-15 15:42:21,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 615 Invalid, 4539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 4333 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-03-15 15:42:21,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23183 states. [2022-03-15 15:42:21,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23183 to 20127. [2022-03-15 15:42:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20127 states, 20126 states have (on average 3.9697903209778396) internal successors, (79896), 20126 states have internal predecessors, (79896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20127 states to 20127 states and 79896 transitions. [2022-03-15 15:42:21,992 INFO L78 Accepts]: Start accepts. Automaton has 20127 states and 79896 transitions. Word has length 35 [2022-03-15 15:42:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:42:21,993 INFO L470 AbstractCegarLoop]: Abstraction has 20127 states and 79896 transitions. [2022-03-15 15:42:21,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:42:21,993 INFO L276 IsEmpty]: Start isEmpty. Operand 20127 states and 79896 transitions. [2022-03-15 15:42:22,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 15:42:22,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:42:22,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:22,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-15 15:42:22,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-15 15:42:22,255 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:42:22,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:42:22,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1146828290, now seen corresponding path program 2 times [2022-03-15 15:42:22,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:42:22,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697369689] [2022-03-15 15:42:22,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:42:22,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:42:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:42:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 15:42:22,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:42:22,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697369689] [2022-03-15 15:42:22,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697369689] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 15:42:22,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952521971] [2022-03-15 15:42:22,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 15:42:22,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:42:22,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:42:22,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 15:42:22,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 15:42:22,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 15:42:22,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 15:42:22,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-15 15:42:22,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-15 15:56:39,058 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 15:56:39,058 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 15:56:40,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-03-15 15:56:40,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-15 15:56:40,377 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-15 15:56:40,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 15:56:40,378 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2022-03-15 15:56:40,382 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-15 15:56:40,383 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-15 15:56:40,396 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-15 15:56:40,396 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-15 15:56:40,398 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1] [2022-03-15 15:56:40,400 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 15:56:40,400 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 15:56:40,401 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:56:40 BasicIcfg [2022-03-15 15:56:40,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 15:56:40,402 INFO L158 Benchmark]: Toolchain (without parser) took 879692.82ms. Allocated memory was 170.9MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 136.6MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 5.0GB. Max. memory is 8.0GB. [2022-03-15 15:56:40,402 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 170.9MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:56:40,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.62ms. Allocated memory is still 170.9MB. Free memory was 136.5MB in the beginning and 135.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:56:40,402 INFO L158 Benchmark]: Boogie Preprocessor took 32.31ms. Allocated memory is still 170.9MB. Free memory was 134.9MB in the beginning and 134.0MB in the end (delta: 908.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:56:40,402 INFO L158 Benchmark]: RCFGBuilder took 206.29ms. Allocated memory is still 170.9MB. Free memory was 133.9MB in the beginning and 124.0MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-15 15:56:40,403 INFO L158 Benchmark]: TraceAbstraction took 879428.39ms. Allocated memory was 170.9MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 123.6MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 5.0GB. Max. memory is 8.0GB. [2022-03-15 15:56:40,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 170.9MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.62ms. Allocated memory is still 170.9MB. Free memory was 136.5MB in the beginning and 135.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.31ms. Allocated memory is still 170.9MB. Free memory was 134.9MB in the beginning and 134.0MB in the end (delta: 908.0kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 206.29ms. Allocated memory is still 170.9MB. Free memory was 133.9MB in the beginning and 124.0MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 879428.39ms. Allocated memory was 170.9MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 123.6MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 5.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 98 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 879.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 970 SdHoareTripleChecker+Valid, 7.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 970 mSDsluCounter, 1585 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1682 mSDsCounter, 234 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5099 IncrementalHoareTripleChecker+Invalid, 5333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 234 mSolverCounterUnsat, 556 mSDtfsCounter, 5099 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 62 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20127occurred in iteration=10, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 23976 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 305 NumberOfCodeBlocks, 305 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 4119 SizeOfPredicates, 4 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 8/14 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