/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 21:15:14,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 21:15:14,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 21:15:14,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 21:15:14,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 21:15:14,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 21:15:14,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 21:15:14,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 21:15:14,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 21:15:14,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 21:15:14,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 21:15:14,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-03-15 21:15:14,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 21:15:14,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 21:15:14,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 21:15:14,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 21:15:14,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 21:15:14,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 21:15:14,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 21:15:14,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 21:15:14,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 21:15:14,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 21:15:14,347 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 21:15:14,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 21:15:14,347 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 21:15:14,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 21:15:14,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 21:15:14,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 21:15:14,349 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 21:15:14,350 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 21:15:14,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 21:15:14,350 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 21:15:14,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 21:15:14,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 21:15:14,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 21:15:14,562 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 21:15:14,563 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 21:15:14,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl [2022-03-15 21:15:14,564 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl' [2022-03-15 21:15:14,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 21:15:14,582 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 21:15:14,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 21:15:14,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 21:15:14,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 21:15:14,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,606 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 21:15:14,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 21:15:14,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 21:15:14,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 21:15:14,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 21:15:14,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 21:15:14,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 21:15:14,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 21:15:14,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 21:15:14,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/1) ... [2022-03-15 21:15:14,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 21:15:14,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 21:15:14,643 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 21:15:14,676 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 21:15:14,689 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 21:15:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 21:15:14,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 21:15:14,689 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 21:15:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 21:15:14,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 21:15:14,689 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 21:15:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 21:15:14,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 21:15:14,689 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 21:15:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 21:15:14,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 21:15:14,691 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-15 21:15:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 21:15:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 21:15:14,691 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-03-15 21:15:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-15 21:15:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-15 21:15:14,691 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2022-03-15 21:15:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-03-15 21:15:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-03-15 21:15:14,692 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 21:15:14,736 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 21:15:14,737 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 21:15:14,814 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 21:15:14,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 21:15:14,820 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 21:15:14,821 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 09:15:14 BoogieIcfgContainer [2022-03-15 21:15:14,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 21:15:14,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 21:15:14,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 21:15:14,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 21:15:14,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:15:14" (1/2) ... [2022-03-15 21:15:14,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5bc289 and model type barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 09:15:14, skipping insertion in model container [2022-03-15 21:15:14,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 09:15:14" (2/2) ... [2022-03-15 21:15:14,826 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier.wvr.bpl [2022-03-15 21:15:14,831 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 21:15:14,831 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 21:15:14,831 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 21:15:14,831 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 21:15:14,893 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-03-15 21:15:14,938 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 21:15:14,949 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 21:15:14,957 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-03-15 21:15:14,974 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 21:15:14,981 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 65 transitions, 202 flow [2022-03-15 21:15:14,982 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 65 transitions, 202 flow [2022-03-15 21:15:14,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 65 transitions, 202 flow [2022-03-15 21:15:15,009 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2022-03-15 21:15:15,010 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-03-15 21:15:15,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 53 events. 4/53 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2022-03-15 21:15:15,015 INFO L116 LiptonReduction]: Number of co-enabled transitions 1336 [2022-03-15 21:15:15,114 INFO L131 LiptonReduction]: Checked pairs total: 5572 [2022-03-15 21:15:15,115 INFO L133 LiptonReduction]: Total number of compositions: 7 [2022-03-15 21:15:15,120 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 59 transitions, 190 flow [2022-03-15 21:15:15,303 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4627 states, 4626 states have (on average 3.616515348032858) internal successors, (16730), 4626 states have internal predecessors, (16730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 4627 states, 4626 states have (on average 3.616515348032858) internal successors, (16730), 4626 states have internal predecessors, (16730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:15,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 21:15:15,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:15:15,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:15,350 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 21:15:15,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:15:15,356 INFO L85 PathProgramCache]: Analyzing trace with hash -749671174, now seen corresponding path program 1 times [2022-03-15 21:15:15,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:15:15,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606777765] [2022-03-15 21:15:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:15:15,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:15:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:15:15,510 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 21:15:15,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:15:15,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606777765] [2022-03-15 21:15:15,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606777765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:15:15,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:15:15,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 21:15:15,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [583077114] [2022-03-15 21:15:15,512 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:15:15,520 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:15:15,898 INFO L252 McrAutomatonBuilder]: Finished intersection with 1283 states and 3610 transitions. [2022-03-15 21:15:15,899 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:15:20,562 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 21:15:20,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 21:15:20,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:15:20,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 21:15:20,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 21:15:20,587 INFO L87 Difference]: Start difference. First operand has 4627 states, 4626 states have (on average 3.616515348032858) internal successors, (16730), 4626 states have internal predecessors, (16730), 0 states have call successors, (0), 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 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:20,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:15:20,652 INFO L93 Difference]: Finished difference Result 3607 states and 12641 transitions. [2022-03-15 21:15:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 21:15:20,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-03-15 21:15:20,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:15:20,678 INFO L225 Difference]: With dead ends: 3607 [2022-03-15 21:15:20,678 INFO L226 Difference]: Without dead ends: 3607 [2022-03-15 21:15:20,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1243 GetRequests, 1242 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 21:15:20,681 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 21:15:20,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 21:15:20,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2022-03-15 21:15:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3607. [2022-03-15 21:15:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3607 states, 3606 states have (on average 3.5055463117027177) internal successors, (12641), 3606 states have internal predecessors, (12641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:20,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3607 states to 3607 states and 12641 transitions. [2022-03-15 21:15:20,794 INFO L78 Accepts]: Start accepts. Automaton has 3607 states and 12641 transitions. Word has length 42 [2022-03-15 21:15:20,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:15:20,794 INFO L470 AbstractCegarLoop]: Abstraction has 3607 states and 12641 transitions. [2022-03-15 21:15:20,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:20,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3607 states and 12641 transitions. [2022-03-15 21:15:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 21:15:20,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:15:20,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:20,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 21:15:20,803 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 21:15:20,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:15:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash 466732560, now seen corresponding path program 2 times [2022-03-15 21:15:20,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:15:20,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837255933] [2022-03-15 21:15:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:15:20,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:15:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:15:20,830 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 21:15:20,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:15:20,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837255933] [2022-03-15 21:15:20,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837255933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:15:20,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:15:20,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 21:15:20,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1461511571] [2022-03-15 21:15:20,830 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:15:20,835 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:15:21,212 INFO L252 McrAutomatonBuilder]: Finished intersection with 1763 states and 5278 transitions. [2022-03-15 21:15:21,213 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:15:26,994 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 21:15:26,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 21:15:26,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:15:26,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 21:15:26,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 21:15:26,996 INFO L87 Difference]: Start difference. First operand 3607 states and 12641 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:15:27,065 INFO L93 Difference]: Finished difference Result 3130 states and 10877 transitions. [2022-03-15 21:15:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 21:15:27,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-03-15 21:15:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:15:27,080 INFO L225 Difference]: With dead ends: 3130 [2022-03-15 21:15:27,080 INFO L226 Difference]: Without dead ends: 3130 [2022-03-15 21:15:27,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1723 GetRequests, 1722 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 21:15:27,082 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 21:15:27,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 21:15:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2022-03-15 21:15:27,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 3130. [2022-03-15 21:15:27,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 3.4761904761904763) internal successors, (10877), 3129 states have internal predecessors, (10877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:27,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 10877 transitions. [2022-03-15 21:15:27,169 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 10877 transitions. Word has length 42 [2022-03-15 21:15:27,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:15:27,169 INFO L470 AbstractCegarLoop]: Abstraction has 3130 states and 10877 transitions. [2022-03-15 21:15:27,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 10877 transitions. [2022-03-15 21:15:27,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 21:15:27,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:15:27,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 21:15:27,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 21:15:27,179 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 21:15:27,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:15:27,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1876992604, now seen corresponding path program 3 times [2022-03-15 21:15:27,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:15:27,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921496621] [2022-03-15 21:15:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:15:27,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:15:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:15:27,618 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 21:15:27,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:15:27,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921496621] [2022-03-15 21:15:27,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921496621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:15:27,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:15:27,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 21:15:27,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [316438347] [2022-03-15 21:15:27,619 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:15:27,623 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:15:27,985 INFO L252 McrAutomatonBuilder]: Finished intersection with 1939 states and 5898 transitions. [2022-03-15 21:15:27,985 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:16:17,898 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 239 new interpolants: [29670#(and (= x_6 (+ temp_4 2)) (= temp_10 (+ y_1 1))), 29652#(and (= (+ temp_11 2) y_1) (= temp_5 x_6)), 29603#(and (= temp_11 x_0) (= (+ y_7 1) y_1)), 29679#(and (= temp_4 (+ y_7 1)) (= temp_5 x_6)), 29772#(and (or (= (+ y_1 1) (+ 2 y_7)) (not (= y_7 x_6))) (or (not (= y_7 x_6)) (= (+ 2 x_6) (+ x_0 1)))), 29668#(and (= x_6 x_0) (= temp_10 (+ y_1 1))), 29724#(and (= (+ temp_10 1) temp_5) (= (+ temp_11 2) y_1)), 29681#(and (= temp_4 (+ y_7 1)) (= x_6 x_0)), 29788#(and (or (not (= y_7 x_6)) (= (+ temp_4 2) (+ 2 x_6))) (or (not (= y_7 x_6)) (= (+ temp_5 2) (+ 2 y_7)))), 29616#(and (= temp_5 x_6) (= (+ temp_4 1) y_7)), 29577#(and (= (+ temp_10 1) y_1) (= x_0 (+ temp_11 1))), 29693#(and (= (+ temp_5 1) temp_10) (= (+ 2 x_0) x_6)), 29809#(and (or (<= x_6 x_0) (not (= y_1 x_0))) (or (not (= y_1 x_0)) (<= y_1 y_7)) (or (<= y_7 y_1) (not (= y_1 x_0))) (or (<= x_0 x_6) (not (= y_1 x_0)))), 29595#(and (= temp_11 temp_5) (= y_1 y_7)), 29699#(and (<= y_7 (+ 2 y_1)) (<= x_6 (+ 2 x_0)) (<= (+ 2 y_1) y_7) (<= (+ 2 x_0) x_6)), 29682#(and (= x_6 x_0) (= temp_5 y_7)), 29690#(and (= temp_11 (+ x_0 1)) (= y_1 y_7)), 29583#(and (<= y_1 (+ temp_10 1)) (<= (+ x_0 1) x_6) (<= x_6 (+ x_0 1)) (<= (+ temp_10 1) y_1)), 29607#(and (= temp_11 temp_5) (= y_7 (+ y_1 1))), 29631#(and (= x_6 (+ temp_4 2)) (= y_1 y_7)), 29767#(and (or (not (= y_7 x_6)) (= (+ temp_5 1) (+ 2 x_6))) (or (not (= y_7 x_6)) (= y_1 (+ 2 y_7)))), 29618#(and (= temp_5 x_6) (= (+ temp_10 1) y_1)), 29573#(and (= temp_10 y_1) (= x_6 x_0)), 29763#(and (= y_1 y_7) (= temp_5 (+ x_6 1))), 29787#(and (or (not (= y_7 x_6)) (= (+ temp_4 2) (+ 2 x_6))) (or (= (+ y_1 1) (+ 2 y_7)) (not (= y_7 x_6)))), 29614#(and (= temp_10 y_1) (= x_0 (+ x_6 1))), 29623#(and (= temp_4 y_7) (= x_0 (+ x_6 1))), 29632#(and (= (+ temp_4 1) temp_11) (= y_1 y_7)), 29671#(and (<= y_7 (+ 2 y_1)) (<= (+ 2 y_1) y_7) (<= (+ temp_4 1) temp_11) (<= temp_11 (+ temp_4 1))), 29688#(and (= temp_10 y_1) (= temp_11 (+ x_0 1))), 29676#(and (= y_1 (+ 2 y_7)) (= x_0 (+ x_6 1))), 29675#(and (= temp_11 y_1) (= (+ temp_4 1) x_6)), 29801#(and (or (<= x_0 temp_10) (not (= y_1 x_0))) (or (not (= y_1 x_0)) (<= y_7 (+ y_1 1))) (or (<= temp_10 x_0) (not (= y_1 x_0))) (or (<= (+ y_1 1) y_7) (not (= y_1 x_0)))), 29613#(and (= y_7 (+ y_1 1)) (= x_0 (+ x_6 1))), 29778#(and (= temp_11 y_1) (= x_0 (+ x_6 1))), 29736#(and (= temp_10 x_0) (= temp_11 y_1)), 29576#(and (= y_7 (+ y_1 1)) (= x_0 (+ temp_11 1))), 29594#(and (= x_6 (+ x_0 1)) (= temp_4 y_7)), 29663#(and (<= y_7 (+ 2 y_1)) (<= (+ 2 y_1) y_7) (<= (+ x_0 1) x_6) (<= x_6 (+ x_0 1))), 29692#(and (<= y_7 (+ temp_5 2)) (<= (+ temp_5 2) y_7) (<= temp_11 (+ x_0 1)) (<= (+ x_0 1) temp_11)), 29714#(and (= (+ temp_10 1) x_0) (= (+ temp_5 1) y_7)), 29771#(and (or (not (= y_7 x_6)) (= (+ temp_4 1) (+ 2 y_7))) (or (not (= y_7 x_6)) (= (+ 2 x_6) (+ x_0 1)))), 29806#(and (or (<= x_0 temp_10) (not (= y_1 x_0))) (or (<= temp_10 x_0) (not (= y_1 x_0))) (or (not (= y_1 x_0)) (<= y_1 y_7)) 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(+ temp_4 1) x_6)), 29622#(and (= temp_5 x_6) (= (+ y_7 1) y_1)), 29798#(and (or (not (= y_1 x_0)) (<= y_7 (+ y_1 1))) (or (<= temp_11 (+ x_0 1)) (not (= y_1 x_0))) (or (<= (+ y_1 1) y_7) (not (= y_1 x_0))) (or (<= (+ x_0 1) temp_11) (not (= y_1 x_0)))), 29744#(and (= temp_10 x_0) (= (+ y_7 1) y_1)), 29572#(and (= x_6 x_0) (= temp_10 temp_4)), 29645#(and (= (+ temp_5 1) temp_10) (= (+ temp_4 1) x_6)), 29755#(and (= temp_4 (+ y_7 1)) (= x_0 (+ 2 x_6))), 29705#(and (= (+ temp_10 2) x_0) (= (+ y_7 1) y_1)), 29621#(and (= x_0 (+ x_6 1)) (= (+ y_7 1) y_1)), 29727#(and (= (+ temp_11 2) y_1) (= (+ temp_10 1) x_0)), 29764#(and (= temp_5 (+ x_6 1)) (= y_1 (+ temp_11 1))), 29807#(and (or (not (= y_1 x_0)) (<= y_7 (+ y_1 1))) (or (<= (+ y_1 1) y_7) (not (= y_1 x_0))) (or (<= x_6 x_0) (not (= y_1 x_0))) (or (<= x_0 x_6) (not (= y_1 x_0)))), 29733#(and (= temp_11 temp_5) (= temp_10 x_0)), 29657#(and (= x_0 (+ x_6 1)) (= y_1 (+ temp_11 1))), 29759#(and (or (= (+ y_1 1) (+ 2 y_7)) (not (= y_7 x_6))) (or (not (= y_7 x_6)) (= x_0 (+ 2 x_6)))), 29585#(and (= temp_10 temp_4) (= (+ temp_5 1) x_6)), 29684#(and (= temp_5 y_7) (= (+ temp_4 1) x_6)), 29753#(and (= x_0 (+ 2 x_6)) (= temp_4 (+ temp_11 1))), 29748#(and (= x_0 (+ 2 x_6)) (= (+ y_7 1) y_1)), 29635#(and (<= y_7 (+ temp_5 2)) (<= (+ temp_5 2) y_7) (<= x_0 temp_11) (<= temp_11 x_0)), 29664#(and (= x_6 (+ x_0 1)) (= temp_10 (+ y_1 1))), 29648#(and (= (+ temp_4 1) temp_11) (= (+ temp_5 1) y_7))] [2022-03-15 21:16:17,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2022-03-15 21:16:17,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:16:17,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2022-03-15 21:16:17,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=64729, Unknown=0, NotChecked=0, Total=65280 [2022-03-15 21:16:17,913 INFO L87 Difference]: Start difference. First operand 3130 states and 10877 transitions. Second operand has 256 states, 255 states have (on average 6.03921568627451) internal successors, (1540), 255 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:21:59,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:21:59,149 INFO L93 Difference]: Finished difference Result 11906 states and 38677 transitions. [2022-03-15 21:21:59,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 848 states. [2022-03-15 21:21:59,149 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 255 states have (on average 6.03921568627451) internal successors, (1540), 255 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-03-15 21:21:59,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:21:59,183 INFO L225 Difference]: With dead ends: 11906 [2022-03-15 21:21:59,184 INFO L226 Difference]: Without dead ends: 7419 [2022-03-15 21:21:59,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2746 GetRequests, 1328 SyntacticMatches, 332 SemanticMatches, 1086 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347755 ImplicationChecksByTransitivity, 193.2s TimeCoverageRelationStatistics Valid=27458, Invalid=1155198, Unknown=0, NotChecked=0, Total=1182656 [2022-03-15 21:21:59,255 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 56304 mSDsluCounter, 405221 mSDsCounter, 0 mSdLazyCounter, 546918 mSolverCounterSat, 31281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56304 SdHoareTripleChecker+Valid, 176253 SdHoareTripleChecker+Invalid, 578199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.4s SdHoareTripleChecker+Time, 31281 IncrementalHoareTripleChecker+Valid, 546918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 165.0s IncrementalHoareTripleChecker+Time [2022-03-15 21:21:59,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56304 Valid, 176253 Invalid, 578199 Unknown, 0 Unchecked, 1.4s Time], IncrementalHoareTripleChecker [31281 Valid, 546918 Invalid, 0 Unknown, 0 Unchecked, 165.0s Time] [2022-03-15 21:21:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7419 states. [2022-03-15 21:21:59,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7419 to 3452. [2022-03-15 21:21:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 3.319037960011591) internal successors, (11454), 3451 states have internal predecessors, (11454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:21:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 11454 transitions. [2022-03-15 21:21:59,351 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 11454 transitions. Word has length 42 [2022-03-15 21:21:59,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:21:59,352 INFO L470 AbstractCegarLoop]: Abstraction has 3452 states and 11454 transitions. [2022-03-15 21:21:59,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 255 states have (on average 6.03921568627451) internal successors, (1540), 255 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:21:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 11454 transitions. [2022-03-15 21:21:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 21:21:59,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:21:59,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 21:21:59,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 21:21:59,360 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 21:21:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:21:59,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1225879536, now seen corresponding path program 4 times [2022-03-15 21:21:59,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:21:59,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111029551] [2022-03-15 21:21:59,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:21:59,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:21:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:21:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 21:21:59,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:21:59,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111029551] [2022-03-15 21:21:59,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111029551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:21:59,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:21:59,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 21:21:59,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [685176248] [2022-03-15 21:21:59,392 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:21:59,397 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:21:59,823 INFO L252 McrAutomatonBuilder]: Finished intersection with 1763 states and 5058 transitions. [2022-03-15 21:21:59,823 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:22:04,677 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 21:22:04,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 21:22:04,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:22:04,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 21:22:04,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 21:22:04,678 INFO L87 Difference]: Start difference. First operand 3452 states and 11454 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:22:04,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:22:04,721 INFO L93 Difference]: Finished difference Result 2014 states and 6207 transitions. [2022-03-15 21:22:04,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 21:22:04,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-03-15 21:22:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:22:04,726 INFO L225 Difference]: With dead ends: 2014 [2022-03-15 21:22:04,726 INFO L226 Difference]: Without dead ends: 1416 [2022-03-15 21:22:04,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1503 GetRequests, 1502 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 21:22:04,727 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 21:22:04,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 21:22:04,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-03-15 21:22:04,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1416. [2022-03-15 21:22:04,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.0713780918727913) internal successors, (4346), 1415 states have internal predecessors, (4346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:22:04,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 4346 transitions. [2022-03-15 21:22:04,753 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 4346 transitions. Word has length 42 [2022-03-15 21:22:04,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:22:04,754 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 4346 transitions. [2022-03-15 21:22:04,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:22:04,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 4346 transitions. [2022-03-15 21:22:04,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 21:22:04,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:22:04,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 21:22:04,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 21:22:04,757 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-15 21:22:04,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:22:04,760 INFO L85 PathProgramCache]: Analyzing trace with hash 859844130, now seen corresponding path program 5 times [2022-03-15 21:22:04,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:22:04,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205600675] [2022-03-15 21:22:04,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:22:04,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:22:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:22:04,801 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 21:22:04,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:22:04,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205600675] [2022-03-15 21:22:04,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205600675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:22:04,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:22:04,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 21:22:04,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1814255451] [2022-03-15 21:22:04,802 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:22:04,805 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:22:05,065 INFO L252 McrAutomatonBuilder]: Finished intersection with 1411 states and 3774 transitions. [2022-03-15 21:22:05,066 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:22:08,411 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 21:22:08,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 21:22:08,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:22:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 21:22:08,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 21:22:08,412 INFO L87 Difference]: Start difference. First operand 1416 states and 4346 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:22:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:22:08,449 INFO L93 Difference]: Finished difference Result 530 states and 1526 transitions. [2022-03-15 21:22:08,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 21:22:08,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-03-15 21:22:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:22:08,450 INFO L225 Difference]: With dead ends: 530 [2022-03-15 21:22:08,450 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 21:22:08,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 1106 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 21:22:08,452 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 21:22:08,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 43 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 21:22:08,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 21:22:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 21:22:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:22:08,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 21:22:08,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2022-03-15 21:22:08,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:22:08,454 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 21:22:08,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:22:08,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 21:22:08,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 21:22:08,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0INUSE_VIOLATION (10 of 11 remaining) [2022-03-15 21:22:08,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1INUSE_VIOLATION (9 of 11 remaining) [2022-03-15 21:22:08,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (8 of 11 remaining) [2022-03-15 21:22:08,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (7 of 11 remaining) [2022-03-15 21:22:08,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION (6 of 11 remaining) [2022-03-15 21:22:08,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err7INUSE_VIOLATION (5 of 11 remaining) [2022-03-15 21:22:08,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err9INUSE_VIOLATION (4 of 11 remaining) [2022-03-15 21:22:08,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err3INUSE_VIOLATION (3 of 11 remaining) [2022-03-15 21:22:08,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err4INUSE_VIOLATION (2 of 11 remaining) [2022-03-15 21:22:08,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork4Err5INUSE_VIOLATION (1 of 11 remaining) [2022-03-15 21:22:08,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork4Err6INUSE_VIOLATION (0 of 11 remaining) [2022-03-15 21:22:08,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 21:22:08,463 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-15 21:22:08,467 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 21:22:08,467 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 21:22:08,469 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 09:22:08 BasicIcfg [2022-03-15 21:22:08,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 21:22:08,470 INFO L158 Benchmark]: Toolchain (without parser) took 413887.25ms. Allocated memory was 202.4MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 167.4MB in the beginning and 272.4MB in the end (delta: -105.0MB). Peak memory consumption was 720.4MB. Max. memory is 8.0GB. [2022-03-15 21:22:08,470 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 202.4MB. Free memory is still 168.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 21:22:08,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.08ms. Allocated memory is still 202.4MB. Free memory was 167.4MB in the beginning and 165.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 21:22:08,470 INFO L158 Benchmark]: Boogie Preprocessor took 9.76ms. Allocated memory is still 202.4MB. Free memory was 165.8MB in the beginning and 164.8MB in the end (delta: 959.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 21:22:08,471 INFO L158 Benchmark]: RCFGBuilder took 202.77ms. Allocated memory is still 202.4MB. Free memory was 164.8MB in the beginning and 154.8MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-15 21:22:08,471 INFO L158 Benchmark]: TraceAbstraction took 413646.98ms. Allocated memory was 202.4MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 154.4MB in the beginning and 272.4MB in the end (delta: -118.1MB). Peak memory consumption was 708.8MB. Max. memory is 8.0GB. [2022-03-15 21:22:08,472 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 202.4MB. Free memory is still 168.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.08ms. Allocated memory is still 202.4MB. Free memory was 167.4MB in the beginning and 165.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.76ms. Allocated memory is still 202.4MB. Free memory was 165.8MB in the beginning and 164.8MB in the end (delta: 959.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 202.77ms. Allocated memory is still 202.4MB. Free memory was 164.8MB in the beginning and 154.8MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 413646.98ms. Allocated memory was 202.4MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 154.4MB in the beginning and 272.4MB in the end (delta: -118.1MB). Peak memory consumption was 708.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 80 PlacesBefore, 74 PlacesAfterwards, 65 TransitionsBefore, 59 TransitionsAfterwards, 1336 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 5572 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3504, positive: 3358, positive conditional: 0, positive unconditional: 3358, negative: 146, negative conditional: 0, negative unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 580, positive: 563, positive conditional: 0, positive unconditional: 563, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3504, positive: 2795, positive conditional: 0, positive unconditional: 2795, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 580, unknown conditional: 0, unknown unconditional: 580] , Statistics on independence cache: Total cache size (in pairs): 431, Positive cache size: 418, Positive conditional cache size: 0, Positive unconditional cache size: 418, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 95]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 112 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 413.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 341.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56315 SdHoareTripleChecker+Valid, 165.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56315 mSDsluCounter, 176464 SdHoareTripleChecker+Invalid, 136.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 405359 mSDsCounter, 31281 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 547106 IncrementalHoareTripleChecker+Invalid, 578387 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31281 mSolverCounterUnsat, 946 mSDtfsCounter, 547106 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8322 GetRequests, 6900 SyntacticMatches, 332 SemanticMatches, 1090 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347755 ImplicationChecksByTransitivity, 193.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4627occurred in iteration=0, InterpolantAutomatonStates: 860, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 3967 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 21:22:08,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...