/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-Lazy-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 22:53:49,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 22:53:49,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 22:53:49,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 22:53:49,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 22:53:49,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 22:53:49,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 22:53:49,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 22:53:49,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 22:53:49,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 22:53:49,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 22:53:49,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 22:53:49,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 22:53:49,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 22:53:49,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 22:53:49,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 22:53:49,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 22:53:49,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 22:53:49,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 22:53:49,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 22:53:49,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 22:53:49,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 22:53:49,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 22:53:49,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 22:53:49,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-19 22:53:49,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-19 22:53:49,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-19 22:53:49,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-19 22:53:49,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-19 22:53:49,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-19 22:53:49,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 22:53:49,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 22:53:49,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 22:53:49,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 22:53:49,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 22:53:49,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 22:53:49,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 22:53:49,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 22:53:49,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 22:53:49,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 22:53:49,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 22:53:49,872 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-Lazy-wrwc.epf [2022-02-19 22:53:49,900 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 22:53:49,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 22:53:49,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 22:53:49,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 22:53:49,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 22:53:49,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 22:53:49,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 22:53:49,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 22:53:49,901 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 22:53:49,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 22:53:49,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 22:53:49,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 22:53:49,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 22:53:49,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 22:53:49,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 22:53:49,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 22:53:49,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 22:53:49,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 22:53:49,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 22:53:49,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 22:53:49,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 22:53:49,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 22:53:49,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 22:53:49,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 22:53:49,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 22:53:49,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:53:49,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 22:53:49,904 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 22:53:49,905 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 22:53:49,905 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 22:53:50,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 22:53:50,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 22:53:50,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 22:53:50,105 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 22:53:50,106 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 22:53:50,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl [2022-02-19 22:53:50,107 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl' [2022-02-19 22:53:50,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 22:53:50,132 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 22:53:50,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 22:53:50,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 22:53:50,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 22:53:50,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,152 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 22:53:50,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 22:53:50,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 22:53:50,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 22:53:50,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 22:53:50,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 22:53:50,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 22:53:50,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 22:53:50,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 22:53:50,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/1) ... [2022-02-19 22:53:50,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:53:50,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:53:50,197 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) [2022-02-19 22:53:50,232 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 [2022-02-19 22:53:50,242 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 22:53:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 22:53:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 22:53:50,242 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 22:53:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 22:53:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 22:53:50,242 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 22:53:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 22:53:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 22:53:50,242 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 22:53:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 22:53:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 22:53:50,243 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 22:53:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 22:53:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 22:53:50,243 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 22:53:50,277 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 22:53:50,278 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 22:53:50,402 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 22:53:50,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 22:53:50,427 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 22:53:50,429 INFO L202 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:53:50 BoogieIcfgContainer [2022-02-19 22:53:50,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 22:53:50,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 22:53:50,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 22:53:50,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 22:53:50,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:53:50" (1/2) ... [2022-02-19 22:53:50,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594c350c and model type mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:53:50, skipping insertion in model container [2022-02-19 22:53:50,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:53:50" (2/2) ... [2022-02-19 22:53:50,443 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-4.wvr.bpl [2022-02-19 22:53:50,446 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 22:53:50,446 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 22:53:50,446 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 22:53:50,446 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 22:53:50,508 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-19 22:53:50,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 22:53:50,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:53:50,573 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) [2022-02-19 22:53:50,577 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 [2022-02-19 22:53:50,603 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 22:53:50,613 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=false [2022-02-19 22:53:50,614 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-19 22:53:51,202 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1126 transitions and produced 1034 states. [2022-02-19 22:53:51,204 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 22:53:51,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:53:51,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1217193475, now seen corresponding path program 1 times [2022-02-19 22:53:51,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:53:51,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614444819] [2022-02-19 22:53:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:53:51,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:53:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:53:52,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 784 proven. 2926 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-02-19 22:53:52,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:53:52,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614444819] [2022-02-19 22:53:52,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614444819] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:53:52,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916509738] [2022-02-19 22:53:52,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:53:52,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:53:52,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:53:52,474 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) [2022-02-19 22:53:52,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 22:53:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:53:52,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-19 22:53:52,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:53:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 2887 proven. 11 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2022-02-19 22:53:53,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:53:55,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 1949 proven. 971 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2022-02-19 22:53:55,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916509738] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:53:55,456 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:53:55,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 45] total 90 [2022-02-19 22:53:55,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349689162] [2022-02-19 22:53:55,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:53:55,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-02-19 22:53:55,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:53:55,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-02-19 22:53:55,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1513, Invalid=6677, Unknown=0, NotChecked=0, Total=8190 [2022-02-19 22:53:55,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:53:55,485 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:53:55,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 3.2527472527472527) internal successors, (296), 90 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:53:55,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:00,244 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1278 transitions and produced 1106 states. [2022-02-19 22:54:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 22:54:00,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-19 22:54:00,462 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 [2022-02-19 22:54:00,463 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 22:54:00,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:54:00,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1802431195, now seen corresponding path program 2 times [2022-02-19 22:54:00,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:54:00,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310071439] [2022-02-19 22:54:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:54:00,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:54:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:54:00,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1407 proven. 820 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-02-19 22:54:00,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:54:00,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310071439] [2022-02-19 22:54:00,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310071439] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:54:00,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493442413] [2022-02-19 22:54:00,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 22:54:00,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:54:00,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:54:00,869 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) [2022-02-19 22:54:00,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 22:54:00,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 22:54:00,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:54:00,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-19 22:54:01,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:54:01,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1407 proven. 820 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-02-19 22:54:01,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:54:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1407 proven. 820 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-02-19 22:54:01,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493442413] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:54:01,761 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:54:01,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 25 [2022-02-19 22:54:01,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411971488] [2022-02-19 22:54:01,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:54:01,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-19 22:54:01,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:54:01,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-19 22:54:01,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2022-02-19 22:54:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:01,765 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:54:01,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.8) internal successors, (120), 25 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:54:01,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 22:54:01,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:05,341 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3622 transitions and produced 3092 states. [2022-02-19 22:54:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-02-19 22:54:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 22:54:05,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 22:54:05,555 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 [2022-02-19 22:54:05,558 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 22:54:05,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:54:05,559 INFO L85 PathProgramCache]: Analyzing trace with hash -34552567, now seen corresponding path program 3 times [2022-02-19 22:54:05,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:54:05,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612076330] [2022-02-19 22:54:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:54:05,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:54:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:54:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 35642 backedges. 24676 proven. 10934 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-19 22:54:24,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:54:24,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612076330] [2022-02-19 22:54:24,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612076330] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:54:24,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51855631] [2022-02-19 22:54:24,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 22:54:24,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:54:24,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:54:24,747 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) [2022-02-19 22:54:24,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 22:54:25,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 105 check-sat command(s) [2022-02-19 22:54:25,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:54:25,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-19 22:54:25,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:54:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 35642 backedges. 1771 proven. 30029 refuted. 0 times theorem prover too weak. 3842 trivial. 0 not checked. [2022-02-19 22:54:31,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:54:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 35642 backedges. 3933 proven. 27867 refuted. 0 times theorem prover too weak. 3842 trivial. 0 not checked. [2022-02-19 22:54:39,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51855631] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:54:39,805 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:54:39,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [227, 65, 65] total 355 [2022-02-19 22:54:39,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121301930] [2022-02-19 22:54:39,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:54:39,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 356 states [2022-02-19 22:54:39,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:54:39,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 356 interpolants. [2022-02-19 22:54:39,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18194, Invalid=108186, Unknown=0, NotChecked=0, Total=126380 [2022-02-19 22:54:39,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:39,835 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:54:39,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 356 states, 356 states have (on average 2.691011235955056) internal successors, (958), 355 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:54:39,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-02-19 22:54:39,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 22:54:39,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:55:33,190 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9525 transitions and produced 5705 states. [2022-02-19 22:55:33,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2022-02-19 22:55:33,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 22:55:33,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 333 states. [2022-02-19 22:55:33,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 22:55:33,409 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 [2022-02-19 22:55:33,410 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 22:55:33,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:55:33,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1834612813, now seen corresponding path program 4 times [2022-02-19 22:55:33,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:55:33,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285629893] [2022-02-19 22:55:33,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:55:33,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:55:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:56:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 113106 backedges. 90119 proven. 22923 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-02-19 22:56:28,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:56:28,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285629893] [2022-02-19 22:56:28,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285629893] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:56:28,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893664120] [2022-02-19 22:56:28,203 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 22:56:28,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:56:28,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:56:28,204 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:56:28,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 22:56:28,619 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 22:56:28,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:56:28,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 311 conjunts are in the unsatisfiable core [2022-02-19 22:56:28,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:57:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 113106 backedges. 109583 proven. 60 refuted. 0 times theorem prover too weak. 3463 trivial. 0 not checked. [2022-02-19 22:57:38,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:58:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 113106 backedges. 52473 proven. 57200 refuted. 0 times theorem prover too weak. 3433 trivial. 0 not checked. [2022-02-19 22:58:47,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893664120] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:58:47,091 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:58:47,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [398, 281, 311] total 988 [2022-02-19 22:58:47,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727461555] [2022-02-19 22:58:47,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:58:47,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 989 states [2022-02-19 22:58:47,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:58:47,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 989 interpolants. [2022-02-19 22:58:47,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187640, Invalid=789492, Unknown=0, NotChecked=0, Total=977132 [2022-02-19 22:58:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:58:47,221 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:58:47,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 989 states, 989 states have (on average 2.3124368048533874) internal successors, (2287), 988 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:58:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 246 states. [2022-02-19 22:58:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 22:58:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 333 states. [2022-02-19 22:58:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-19 23:08:07,285 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 23:08:07,286 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 23:08:07,286 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 23:08:08,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-19 23:08:08,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-19 23:08:08,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-02-19 23:08:08,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:08:08,471 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-19 23:08:08,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-19 23:08:08,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-19 23:08:08,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-19 23:08:08,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-19 23:08:08,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-19 23:08:08,477 INFO L732 BasicCegarLoop]: Path program histogram: [4] [2022-02-19 23:08:08,478 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 23:08:08,479 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 23:08:08,480 INFO L202 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:08:08 BasicIcfg [2022-02-19 23:08:08,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 23:08:08,481 INFO L158 Benchmark]: Toolchain (without parser) took 858348.84ms. Allocated memory was 211.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 175.8MB in the beginning and 944.2MB in the end (delta: -768.4MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-19 23:08:08,481 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 211.8MB. Free memory is still 177.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 23:08:08,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.11ms. Allocated memory is still 211.8MB. Free memory was 175.8MB in the beginning and 174.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:08:08,481 INFO L158 Benchmark]: Boogie Preprocessor took 18.69ms. Allocated memory is still 211.8MB. Free memory was 174.3MB in the beginning and 173.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:08:08,481 INFO L158 Benchmark]: RCFGBuilder took 256.24ms. Allocated memory is still 211.8MB. Free memory was 173.3MB in the beginning and 163.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-19 23:08:08,482 INFO L158 Benchmark]: TraceAbstraction took 858050.20ms. Allocated memory was 211.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 162.6MB in the beginning and 944.2MB in the end (delta: -781.6MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-02-19 23:08:08,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11ms. Allocated memory is still 211.8MB. Free memory is still 177.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.11ms. Allocated memory is still 211.8MB. Free memory was 175.8MB in the beginning and 174.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.69ms. Allocated memory is still 211.8MB. Free memory was 174.3MB in the beginning and 173.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 256.24ms. Allocated memory is still 211.8MB. Free memory was 173.3MB in the beginning and 163.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 858050.20ms. Allocated memory was 211.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 162.6MB in the beginning and 944.2MB in the end (delta: -781.6MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 857.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 623.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1204, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 230.8s InterpolantComputationTime, 3888 NumberOfCodeBlocks, 3792 NumberOfCodeBlocksAsserted, 113 NumberOfCheckSat, 5820 ConstructedInterpolants, 0 QuantifiedInterpolants, 70816 SizeOfPredicates, 12 NumberOfNonLiveVariables, 4958 ConjunctsInSsa, 463 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 313759/469140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown