/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-MCRwithDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 08:19:56,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 08:19:56,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 08:19:56,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-29 08:19:56,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-29 08:19:56,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-29 08:19:56,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-29 08:19:56,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-29 08:19:56,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-29 08:19:56,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-29 08:19:56,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-29 08:19:56,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-29 08:19:56,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-29 08:19:56,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-29 08:19:56,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-29 08:19:56,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-29 08:19:56,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-29 08:19:56,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-29 08:19:56,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-29 08:19:56,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-29 08:19:56,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-29 08:19:56,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-29 08:19:56,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-29 08:19:56,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-29 08:19:56,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-29 08:19:56,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-29 08:19:56,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-29 08:19:56,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-29 08:19:56,785 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-MCRwithDepranks.epf [2022-01-29 08:19:56,803 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 08:19:56,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 08:19:56,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 08:19:56,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 08:19:56,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 08:19:56,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 08:19:56,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 08:19:56,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 08:19:56,805 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 08:19:56,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 08:19:56,805 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 08:19:56,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 08:19:56,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 08:19:56,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 08:19:56,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 08:19:56,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 08:19:56,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 08:19:56,807 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 08:19:56,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 08:19:56,807 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 08:19:56,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 08:19:56,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 08:19:56,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 08:19:56,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 08:19:56,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 08:19:56,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 08:19:56,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 08:19:56,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 08:19:56,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 08:19:56,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 08:19:56,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 08:19:56,808 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 08:19:56,809 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 08:19:56,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 08:19:56,809 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-01-29 08:19:56,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 08:19:57,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 08:19:57,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 08:19:57,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 08:19:57,043 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 08:19:57,044 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 08:19:57,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl [2022-01-29 08:19:57,045 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl' [2022-01-29 08:19:57,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 08:19:57,067 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 08:19:57,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 08:19:57,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 08:19:57,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 08:19:57,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,093 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 08:19:57,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 08:19:57,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 08:19:57,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 08:19:57,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 08:19:57,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 08:19:57,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 08:19:57,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 08:19:57,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 08:19:57,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/1) ... [2022-01-29 08:19:57,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 08:19:57,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 08:19:57,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-29 08:19:57,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-29 08:19:57,175 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-29 08:19:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-29 08:19:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-29 08:19:57,176 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-29 08:19:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-29 08:19:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-29 08:19:57,177 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-29 08:19:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 08:19:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 08:19:57,177 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-29 08:19:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-29 08:19:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-29 08:19:57,178 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 08:19:57,214 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 08:19:57,215 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 08:19:57,346 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 08:19:57,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 08:19:57,362 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 08:19:57,365 INFO L202 PluginConnector]: Adding new model mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 08:19:57 BoogieIcfgContainer [2022-01-29 08:19:57,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 08:19:57,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 08:19:57,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 08:19:57,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 08:19:57,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 08:19:57" (1/2) ... [2022-01-29 08:19:57,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bf6a52 and model type mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 08:19:57, skipping insertion in model container [2022-01-29 08:19:57,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 08:19:57" (2/2) ... [2022-01-29 08:19:57,377 INFO L111 eAbstractionObserver]: Analyzing ICFG mts.wvr.bpl [2022-01-29 08:19:57,382 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 08:19:57,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 08:19:57,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 08:19:57,383 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 08:19:57,440 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-29 08:19:57,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 08:19:57,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 08:19:57,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 08:19:57,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-01-29 08:19:57,522 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-29 08:19:57,535 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-29 08:19:57,536 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-29 08:19:57,673 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 08:19:57,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 08:19:57,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1001155325, now seen corresponding path program 1 times [2022-01-29 08:19:57,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 08:19:57,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774173823] [2022-01-29 08:19:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 08:19:57,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 08:19:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 08:19:58,349 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 493 proven. 140 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-29 08:19:58,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 08:19:58,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774173823] [2022-01-29 08:19:58,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774173823] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 08:19:58,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067833068] [2022-01-29 08:19:58,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 08:19:58,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 08:19:58,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 08:19:58,359 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) [2022-01-29 08:19:58,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-29 08:19:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 08:19:58,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 42 conjunts are in the unsatisfiable core [2022-01-29 08:19:58,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 08:19:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 133 proven. 512 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-29 08:19:59,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 08:20:00,839 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 24 proven. 636 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-29 08:20:00,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067833068] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 08:20:00,839 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 08:20:00,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25, 37] total 75 [2022-01-29 08:20:00,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330741339] [2022-01-29 08:20:00,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 08:20:00,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-01-29 08:20:00,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 08:20:00,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-01-29 08:20:00,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=4322, Unknown=0, NotChecked=0, Total=5550 [2022-01-29 08:20:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 08:20:00,872 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 08:20:00,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.8) internal successors, (210), 75 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 08:20:00,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 08:20:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-29 08:20:04,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-29 08:20:04,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-01-29 08:20:04,571 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 08:20:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 08:20:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash 931494299, now seen corresponding path program 2 times [2022-01-29 08:20:04,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 08:20:04,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586170182] [2022-01-29 08:20:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 08:20:04,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 08:20:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 08:20:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 409 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 08:20:05,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 08:20:05,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586170182] [2022-01-29 08:20:05,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586170182] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 08:20:05,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042930092] [2022-01-29 08:20:05,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-29 08:20:05,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 08:20:05,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 08:20:05,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 08:20:05,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-29 08:20:05,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-29 08:20:05,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 08:20:05,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 31 conjunts are in the unsatisfiable core [2022-01-29 08:20:05,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 08:20:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 389 proven. 196 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-29 08:20:06,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 08:20:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 389 proven. 196 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-29 08:20:07,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042930092] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 08:20:07,466 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 08:20:07,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 32, 32] total 88 [2022-01-29 08:20:07,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900806261] [2022-01-29 08:20:07,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 08:20:07,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-01-29 08:20:07,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 08:20:07,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-01-29 08:20:07,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=6477, Unknown=0, NotChecked=0, Total=7656 [2022-01-29 08:20:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 08:20:07,472 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 08:20:07,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.272727272727273) internal successors, (200), 88 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 08:20:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-01-29 08:20:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 08:20:09,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-29 08:20:09,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-29 08:20:09,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-29 08:20:09,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 08:20:09,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 08:20:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 08:20:09,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1642737117, now seen corresponding path program 3 times [2022-01-29 08:20:09,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 08:20:09,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783463894] [2022-01-29 08:20:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 08:20:09,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 08:20:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 08:20:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 409 proven. 618 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-29 08:20:10,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 08:20:10,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783463894] [2022-01-29 08:20:10,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783463894] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 08:20:10,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667724075] [2022-01-29 08:20:10,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-29 08:20:10,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 08:20:10,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 08:20:10,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 08:20:10,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-29 08:20:10,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-01-29 08:20:10,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 08:20:10,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 52 conjunts are in the unsatisfiable core [2022-01-29 08:20:10,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 08:20:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 409 proven. 618 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-29 08:20:12,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 08:20:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 454 proven. 579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 08:20:14,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667724075] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 08:20:14,481 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 08:20:14,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 53] total 141 [2022-01-29 08:20:14,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218923541] [2022-01-29 08:20:14,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 08:20:14,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2022-01-29 08:20:14,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 08:20:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2022-01-29 08:20:14,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3688, Invalid=16052, Unknown=0, NotChecked=0, Total=19740 [2022-01-29 08:20:14,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 08:20:14,487 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 08:20:14,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 141 states have (on average 2.198581560283688) internal successors, (310), 141 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 08:20:14,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-01-29 08:20:14,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-01-29 08:20:14,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 08:20:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-29 08:20:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-29 08:20:16,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-29 08:20:16,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-29 08:20:17,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 08:20:17,065 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 08:20:17,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 08:20:17,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1054314513, now seen corresponding path program 4 times [2022-01-29 08:20:17,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 08:20:17,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629369719] [2022-01-29 08:20:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 08:20:17,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 08:20:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat