/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-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 00:23:29,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 00:23:29,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 00:23:29,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 00:23:29,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 00:23:29,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 00:23:29,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 00:23:29,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 00:23:29,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 00:23:29,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 00:23:29,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 00:23:29,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 00:23:29,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 00:23:29,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 00:23:29,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 00:23:29,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 00:23:29,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 00:23:29,118 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-NoForkJoinOpt-wrwc.epf [2022-03-04 00:23:29,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 00:23:29,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 00:23:29,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 00:23:29,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 00:23:29,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 00:23:29,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 00:23:29,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 00:23:29,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 00:23:29,134 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 00:23:29,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 00:23:29,134 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 00:23:29,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 00:23:29,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 00:23:29,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 00:23:29,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 00:23:29,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 00:23:29,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 00:23:29,135 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 00:23:29,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 00:23:29,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 00:23:29,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 00:23:29,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 00:23:29,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 00:23:29,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 00:23:29,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 00:23:29,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:23:29,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 00:23:29,136 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 00:23:29,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 00:23:29,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 00:23:29,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 00:23:29,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 00:23:29,137 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 00:23:29,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 00:23:29,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 00:23:29,137 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 00:23:29,137 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 00:23:29,138 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 00:23:29,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 00:23:29,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 00:23:29,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 00:23:29,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 00:23:29,289 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 00:23:29,297 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 00:23:29,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl [2022-03-04 00:23:29,298 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl' [2022-03-04 00:23:29,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 00:23:29,315 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 00:23:29,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 00:23:29,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 00:23:29,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 00:23:29,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,348 INFO L137 Inliner]: procedures = 2, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 00:23:29,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 00:23:29,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 00:23:29,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 00:23:29,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 00:23:29,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 00:23:29,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 00:23:29,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 00:23:29,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 00:23:29,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/1) ... [2022-03-04 00:23:29,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:23:29,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:23:29,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 00:23:29,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 00:23:29,435 INFO L124 BoogieDeclarations]: Specification and implementation of procedure increment given in one single declaration [2022-03-04 00:23:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2022-03-04 00:23:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2022-03-04 00:23:29,435 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 00:23:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 00:23:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 00:23:29,436 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 00:23:29,468 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 00:23:29,469 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 00:23:29,516 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 00:23:29,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 00:23:29,520 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 00:23:29,522 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:23:29 BoogieIcfgContainer [2022-03-04 00:23:29,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 00:23:29,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 00:23:29,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 00:23:29,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 00:23:29,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:23:29" (1/2) ... [2022-03-04 00:23:29,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1562b2 and model type multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:23:29, skipping insertion in model container [2022-03-04 00:23:29,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:23:29" (2/2) ... [2022-03-04 00:23:29,530 INFO L111 eAbstractionObserver]: Analyzing ICFG multiple_fork_same_id.bpl [2022-03-04 00:23:29,538 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 00:23:29,539 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 00:23:29,539 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 00:23:29,539 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 00:23:29,562 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,562 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,565 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,565 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,566 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,567 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,567 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,567 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,568 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,568 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,569 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,570 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,581 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,582 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,583 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:23:29,585 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 00:23:29,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 00:23:29,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:23:29,624 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) [2022-03-04 00:23:29,625 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 [2022-03-04 00:23:29,652 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 00:23:29,656 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=false, mMcrOverapproximateWrwc=false [2022-03-04 00:23:29,656 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 00:23:29,715 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 29 transitions and produced 30 states. [2022-03-04 00:23:29,717 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 00:23:29,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:23:29,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2143640910, now seen corresponding path program 1 times [2022-03-04 00:23:29,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:23:29,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226516601] [2022-03-04 00:23:29,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:23:29,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:23:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:23:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:23:29,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:23:29,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226516601] [2022-03-04 00:23:29,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226516601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:23:29,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:23:29,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:23:29,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530564914] [2022-03-04 00:23:29,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:23:29,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-04 00:23:29,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:23:29,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-04 00:23:29,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-04 00:23:29,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:23:29,918 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:23:29,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:23:29,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:23:29,975 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 32 transitions and produced 33 states. [2022-03-04 00:23:29,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 00:23:29,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 00:23:29,976 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 00:23:29,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:23:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2143640941, now seen corresponding path program 1 times [2022-03-04 00:23:29,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:23:29,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174186730] [2022-03-04 00:23:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:23:29,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:23:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 00:23:29,985 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-04 00:23:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 00:23:30,000 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-04 00:23:30,000 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-04 00:23:30,002 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 00:23:30,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 00:23:30,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 00:23:30,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 00:23:30,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 00:23:30,021 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-04 00:23:30,031 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 00:23:30,031 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 00:23:30,052 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:23:30 BasicIcfg [2022-03-04 00:23:30,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 00:23:30,053 INFO L158 Benchmark]: Toolchain (without parser) took 738.31ms. Allocated memory was 180.4MB in the beginning and 241.2MB in the end (delta: 60.8MB). Free memory was 138.5MB in the beginning and 213.7MB in the end (delta: -75.2MB). Peak memory consumption was 1.3MB. Max. memory is 8.0GB. [2022-03-04 00:23:30,054 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:23:30,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.87ms. Allocated memory is still 180.4MB. Free memory was 138.5MB in the beginning and 136.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 00:23:30,055 INFO L158 Benchmark]: Boogie Preprocessor took 8.99ms. Allocated memory is still 180.4MB. Free memory was 136.9MB in the beginning and 136.1MB in the end (delta: 825.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:23:30,055 INFO L158 Benchmark]: RCFGBuilder took 163.98ms. Allocated memory is still 180.4MB. Free memory was 136.0MB in the beginning and 128.2MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-04 00:23:30,056 INFO L158 Benchmark]: TraceAbstraction took 526.42ms. Allocated memory was 180.4MB in the beginning and 241.2MB in the end (delta: 60.8MB). Free memory was 127.7MB in the beginning and 213.7MB in the end (delta: -86.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:23:30,059 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 0.12ms. Allocated memory is still 180.4MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.87ms. Allocated memory is still 180.4MB. Free memory was 138.5MB in the beginning and 136.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 8.99ms. Allocated memory is still 180.4MB. Free memory was 136.9MB in the beginning and 136.1MB in the end (delta: 825.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 163.98ms. Allocated memory is still 180.4MB. Free memory was 136.0MB in the beginning and 128.2MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 526.42ms. Allocated memory was 180.4MB in the beginning and 241.2MB in the end (delta: 60.8MB). Free memory was 127.7MB in the beginning and 213.7MB in the end (delta: -86.0MB). There was no memory consumed. 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 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L19] FORK 0 fork 42 increment(7); VAL [n=7] [L20] FORK 0 fork 42 increment(23); VAL [n=7] [L21] FORK 0 fork 42 increment(39); VAL [n=39] [L34] 3 res := n + 1; VAL [n=39, res=40] [L34] 2 res := n + 1; VAL [n=39, res=40] [L34] 1 res := n + 1; VAL [n=39, res=40] [L24] JOIN 2 join 42 assign x; VAL [n=39, res=40, x=24] [L28] 0 assert x == 8 || x == 40; VAL [n=39, res=40, x=24] - UnprovableResult [Line: 13]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-04 00:23:30,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-03-04 00:23:30,313 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 Received shutdown request...