/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.conditional-comm-158c277 [2024-11-14 11:45:59,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 11:45:59,799 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2024-11-14 11:45:59,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 11:45:59,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 11:45:59,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 11:45:59,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 11:45:59,832 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 11:45:59,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 11:45:59,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 11:45:59,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 11:45:59,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 11:45:59,833 INFO L153 SettingsManager]: * Use SBE=true [2024-11-14 11:45:59,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 11:45:59,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 11:45:59,833 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 11:45:59,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 11:45:59,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 11:45:59,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 11:45:59,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 11:45:59,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 11:45:59,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 11:45:59,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 11:45:59,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 11:45:59,834 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 11:45:59,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 11:45:59,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 11:45:59,837 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-14 11:45:59,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 11:45:59,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 11:45:59,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 11:45:59,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 11:45:59,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 11:45:59,838 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-14 11:45:59,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 11:45:59,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 11:45:59,838 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-14 11:45:59,838 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-14 11:45:59,838 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-14 11:45:59,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-11-14 11:46:00,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 11:46:00,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 11:46:00,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 11:46:00,127 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 11:46:00,129 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 11:46:00,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2024-11-14 11:46:01,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 11:46:01,795 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 11:46:01,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2024-11-14 11:46:01,813 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/23a0a944a/a2705405987d48309376ab6ebc689802/FLAG29b426dec [2024-11-14 11:46:01,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/23a0a944a/a2705405987d48309376ab6ebc689802 [2024-11-14 11:46:01,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 11:46:01,837 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-14 11:46:01,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 11:46:01,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 11:46:01,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 11:46:01,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 11:46:01" (1/1) ... [2024-11-14 11:46:01,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76fd61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:01, skipping insertion in model container [2024-11-14 11:46:01,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 11:46:01" (1/1) ... [2024-11-14 11:46:01,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 11:46:02,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i[31309,31322] [2024-11-14 11:46:02,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 11:46:02,240 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 11:46:02,297 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i[31309,31322] [2024-11-14 11:46:02,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 11:46:02,358 INFO L204 MainTranslator]: Completed translation [2024-11-14 11:46:02,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02 WrapperNode [2024-11-14 11:46:02,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 11:46:02,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 11:46:02,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 11:46:02,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 11:46:02,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,443 INFO L138 Inliner]: procedures = 179, calls = 46, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 2105 [2024-11-14 11:46:02,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 11:46:02,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 11:46:02,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 11:46:02,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 11:46:02,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 11:46:02,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 11:46:02,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 11:46:02,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 11:46:02,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (1/1) ... [2024-11-14 11:46:02,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 11:46:02,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-14 11:46:02,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 11:46:02,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 11:46:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 11:46:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-14 11:46:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-14 11:46:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 11:46:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-14 11:46:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 11:46:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 11:46:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 11:46:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 11:46:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-14 11:46:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 11:46:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 11:46:02,642 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 11:46:02,770 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 11:46:02,771 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 11:46:04,525 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 11:46:04,526 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 11:46:04,750 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 11:46:04,751 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 11:46:04,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 11:46:04 BoogieIcfgContainer [2024-11-14 11:46:04,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 11:46:04,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 11:46:04,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 11:46:04,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 11:46:04,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 11:46:01" (1/3) ... [2024-11-14 11:46:04,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df42431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 11:46:04, skipping insertion in model container [2024-11-14 11:46:04,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:46:02" (2/3) ... [2024-11-14 11:46:04,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df42431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 11:46:04, skipping insertion in model container [2024-11-14 11:46:04,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 11:46:04" (3/3) ... [2024-11-14 11:46:04,761 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-1.i [2024-11-14 11:46:04,772 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 11:46:04,774 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 26_stack_cas_longest-1.i that has 2 procedures, 2024 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 11:46:04,774 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 11:46:04,903 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 11:46:05,001 INFO L123 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 11:46:05,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-14 11:46:05,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-14 11:46:05,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-14 11:46:05,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-14 11:46:05,090 INFO L185 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-14 11:46:05,102 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-11-14 11:46:05,110 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3bca0e1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 11:46:05,110 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 11:46:05,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 11:46:05,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 11:46:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash -248786609, now seen corresponding path program 1 times [2024-11-14 11:46:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 11:46:05,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759239742] [2024-11-14 11:46:05,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 11:46:05,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 11:46:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 11:46:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 11:46:10,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-14 11:46:10,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759239742] [2024-11-14 11:46:10,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759239742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 11:46:10,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 11:46:10,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 11:46:10,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550464371] [2024-11-14 11:46:10,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 11:46:10,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 11:46:10,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-14 11:46:10,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 11:46:10,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 11:46:10,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 11:46:10,550 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-14 11:46:10,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 665.3333333333334) internal successors, (1996), 3 states have internal predecessors, (1996), 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) [2024-11-14 11:46:10,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-14 11:46:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 11:46:10,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 11:46:10,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 11:46:10,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 11:46:10,853 INFO L85 PathProgramCache]: Analyzing trace with hash -928613592, now seen corresponding path program 1 times [2024-11-14 11:46:10,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 11:46:10,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751167061] [2024-11-14 11:46:10,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 11:46:10,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 11:46:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 11:46:15,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 11:46:15,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-14 11:46:15,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751167061] [2024-11-14 11:46:15,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751167061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 11:46:15,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 11:46:15,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 11:46:15,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102740646] [2024-11-14 11:46:15,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 11:46:15,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 11:46:15,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-14 11:46:15,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 11:46:15,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 11:46:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 11:46:15,445 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-14 11:46:15,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 285.2857142857143) internal successors, (1997), 7 states have internal predecessors, (1997), 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) [2024-11-14 11:46:15,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-14 11:46:15,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-14 11:46:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 11:46:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 11:46:16,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 11:46:16,158 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 11:46:16,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 11:46:16,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1712582256, now seen corresponding path program 1 times [2024-11-14 11:46:16,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-14 11:46:16,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130104437] [2024-11-14 11:46:16,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 11:46:16,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 11:46:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 11:46:23,220 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 11:46:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 11:46:29,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-14 11:46:29,209 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-14 11:46:29,209 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 11:46:29,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 11:46:29,215 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 11:46:29,217 INFO L320 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was UNSAFE (1/2) [2024-11-14 11:46:29,361 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 11:46:29,362 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 11:46:29,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-14 11:46:29,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 11:46:29 BasicIcfg [2024-11-14 11:46:29,380 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 11:46:29,381 INFO L158 Benchmark]: Toolchain (without parser) took 27543.97ms. Allocated memory was 100.7MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 71.7MB in the beginning and 3.7GB in the end (delta: -3.6GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2024-11-14 11:46:29,381 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-14 11:46:29,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.55ms. Allocated memory is still 100.7MB. Free memory was 71.7MB in the beginning and 38.6MB in the end (delta: 33.1MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2024-11-14 11:46:29,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.25ms. Allocated memory is still 100.7MB. Free memory was 38.6MB in the beginning and 29.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2024-11-14 11:46:29,382 INFO L158 Benchmark]: Boogie Preprocessor took 135.86ms. Allocated memory is still 100.7MB. Free memory was 29.5MB in the beginning and 64.5MB in the end (delta: -35.0MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. [2024-11-14 11:46:29,382 INFO L158 Benchmark]: RCFGBuilder took 2169.92ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 34.1MB in the end (delta: 29.9MB). Peak memory consumption was 66.9MB. Max. memory is 8.0GB. [2024-11-14 11:46:29,383 INFO L158 Benchmark]: TraceAbstraction took 24625.37ms. Allocated memory was 121.6MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 34.1MB in the beginning and 3.7GB in the end (delta: -3.7GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2024-11-14 11:46:29,384 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 520.55ms. Allocated memory is still 100.7MB. Free memory was 71.7MB in the beginning and 38.6MB in the end (delta: 33.1MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 84.25ms. Allocated memory is still 100.7MB. Free memory was 38.6MB in the beginning and 29.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 135.86ms. Allocated memory is still 100.7MB. Free memory was 29.5MB in the beginning and 64.5MB in the end (delta: -35.0MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2169.92ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 34.1MB in the end (delta: 29.9MB). Peak memory consumption was 66.9MB. Max. memory is 8.0GB. * TraceAbstraction took 24625.37ms. Allocated memory was 121.6MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 34.1MB in the beginning and 3.7GB in the end (delta: -3.7GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1972, independent: 1837, independent conditional: 250, independent unconditional: 1587, dependent: 135, dependent conditional: 124, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 250, independent unconditional: 1587, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 250, independent unconditional: 1587, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 250, independent unconditional: 1587, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 0, independent unconditional: 1837, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 0, independent unconditional: 1837, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1379, independent: 1368, independent conditional: 0, independent unconditional: 1368, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1379, independent: 1349, independent conditional: 0, independent unconditional: 1349, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 596, independent: 321, independent conditional: 0, independent unconditional: 321, dependent: 275, dependent conditional: 0, dependent unconditional: 275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 1848, independent: 469, independent conditional: 0, independent unconditional: 469, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1379, unknown conditional: 0, unknown unconditional: 1379] , Statistics on independence cache: Total cache size (in pairs): 1379, Positive cache size: 1368, Positive conditional cache size: 0, Positive unconditional cache size: 1368, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 250, Maximal queried relation: 0, Independence queries for same thread: 124, Persistent sets #1 benchmarks: Persistent set computation time: 0.7s, Number of persistent set computation: 2022, Number of trivial persistent sets: 1980, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1598, independent: 1587, independent conditional: 0, independent unconditional: 1587, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1972, independent: 1837, independent conditional: 250, independent unconditional: 1587, dependent: 135, dependent conditional: 124, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 250, independent unconditional: 1587, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 250, independent unconditional: 1587, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 250, independent unconditional: 1587, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 0, independent unconditional: 1837, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1848, independent: 1837, independent conditional: 0, independent unconditional: 1837, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1379, independent: 1368, independent conditional: 0, independent unconditional: 1368, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1379, independent: 1349, independent conditional: 0, independent unconditional: 1349, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 596, independent: 321, independent conditional: 0, independent unconditional: 321, dependent: 275, dependent conditional: 0, dependent unconditional: 275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 1848, independent: 469, independent conditional: 0, independent unconditional: 469, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1379, unknown conditional: 0, unknown unconditional: 1379] , Statistics on independence cache: Total cache size (in pairs): 1379, Positive cache size: 1368, Positive conditional cache size: 0, Positive unconditional cache size: 1368, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 250, Maximal queried relation: 0, Independence queries for same thread: 124 - CounterExampleResult [Line: 763]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L716] 0 int memory[(2*960+1)]; [L717] 0 int next_alloc_idx = 1; VAL [next_alloc_idx=1] [L718] 0 int m = 0; VAL [m={3:0}, next_alloc_idx=1] [L719] 0 int top; VAL [m={3:0}, next_alloc_idx=1, top={4:0}] [L773] 0 int m2 = 0; VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, top={4:0}] [L774] 0 int state = 0; VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, state=0, top={4:0}] [L792] 0 pthread_t t; VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, state=0, top={4:0}] [L793] COND TRUE 0 1 VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, state=0, top={4:0}] [L793] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, state=0, t=-1, top={4:0}] [L777] CALL 1 __VERIFIER_atomic_acquire(&m2) [L693] EXPR 1 \read(*m) [L693] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L693] RET 1 assume_abort_if_not(*m==0) [L694] 1 *m = 1 [L777] RET 1 __VERIFIER_atomic_acquire(&m2) [L780] 1 case 0: [L781] CALL 1 EBStack_init() [L734] 1 top = 0 VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, state=0, top={4:0}] [L781] RET 1 EBStack_init() [L782] 1 state = 1 VAL [\old(arg)={0:0}, arg={0:0}, m2={5:0}, m={3:0}, next_alloc_idx=1, state=1, top={4:0}] [L783] 1 case 1: VAL [\old(arg)={0:0}, arg={0:0}, m2={5:0}, m={3:0}, next_alloc_idx=1, state=1, top={4:0}] [L784] CALL 1 __VERIFIER_atomic_release(&m2) [L698] EXPR 1 \read(*m) [L698] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L698] RET 1 assume_abort_if_not(*m==1) [L699] 1 *m = 0 [L784] RET 1 __VERIFIER_atomic_release(&m2) [L785] CALL 1 push_loop() [L766] 1 int r = -1; VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, r=-1, state=1, top={4:0}] [L767] 1 int arg = __VERIFIER_nondet_int(); VAL [arg=1922, m2={5:0}, m={3:0}, next_alloc_idx=1, r=-1, state=1, top={4:0}] [L768] COND TRUE 1 1 [L769] CALL, EXPR 1 push(arg) [L743] 1 int oldTop = -1, newTop = -1, casret = -1; VAL [\old(d)=1922, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=-1, next_alloc_idx=1, oldTop=-1, state=1, top={4:0}] [L744] CALL, EXPR 1 index_malloc() [L721] 1 int curr_alloc_idx = -1; VAL [curr_alloc_idx=-1, m2={5:0}, m={3:0}, next_alloc_idx=1, state=1, top={4:0}] [L722] CALL 1 __VERIFIER_atomic_acquire(&m) [L693] EXPR 1 \read(*m) [L693] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L693] RET 1 assume_abort_if_not(*m==0) [L694] 1 *m = 1 [L722] RET 1 __VERIFIER_atomic_acquire(&m) [L723] COND FALSE 1 !(next_alloc_idx+2-1 > (2*960+1)) VAL [curr_alloc_idx=-1, m2={5:0}, m={3:0}, next_alloc_idx=1, state=1, top={4:0}] [L727] 1 curr_alloc_idx = next_alloc_idx VAL [curr_alloc_idx=1, m2={5:0}, m={3:0}, next_alloc_idx=1, state=1, top={4:0}] [L728] 1 next_alloc_idx += 2 VAL [curr_alloc_idx=1, m2={5:0}, m={3:0}, next_alloc_idx=3, state=1, top={4:0}] [L729] CALL 1 __VERIFIER_atomic_release(&m) [L698] EXPR 1 \read(*m) [L698] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L698] RET 1 assume_abort_if_not(*m==1) [L699] 1 *m = 0 [L729] RET 1 __VERIFIER_atomic_release(&m) [L731] 1 return curr_alloc_idx; VAL [\result=1, curr_alloc_idx=1, m2={5:0}, m={3:0}, next_alloc_idx=3, state=1, top={4:0}] [L744] RET, EXPR 1 index_malloc() [L744] 1 newTop = index_malloc() VAL [\old(d)=1922, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={4:0}] [L745] COND FALSE 1 !(newTop == 0) VAL [\old(d)=1922, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={4:0}] [L748] 1 memory[newTop+0] = d VAL [\old(d)=1922, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={4:0}] [L793] COND TRUE 0 1 VAL [m2={5:0}, m={3:0}, next_alloc_idx=3, state=1, t=-1, top={4:0}] [L793] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m2={5:0}, m={3:0}, next_alloc_idx=3, state=1, t=0, top={4:0}] [L749] COND TRUE 1 1 VAL [\old(d)=1922, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={4:0}] [L751] EXPR 1 \read(top) [L751] 1 oldTop = top [L753] 1 memory[newTop+1] = oldTop VAL [\old(d)=1922, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L754] CALL 1 __VERIFIER_atomic_CAS(&top,oldTop,newTop,&casret) [L707] EXPR 1 \read(*v) [L707] COND TRUE 1 *v == e [L709] 1 *v = u [L709] 1 *r = 1 [L754] RET 1 __VERIFIER_atomic_CAS(&top,oldTop,newTop,&casret) [L755] EXPR 1 \read(casret) VAL [\old(d)=1922, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L755] COND TRUE 1 casret==1 VAL [\old(d)=1922, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L756] 1 return 1; VAL [\old(d)=1922, \result=1, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L743] 1 int oldTop = -1, newTop = -1, casret = -1; VAL [\old(d)=1922, \result=1, casret={1921:0}, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L756] 1 return 1; VAL [\old(d)=1922, \result=1, d=1922, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L769] RET, EXPR 1 push(arg) [L769] 1 r = push(arg) VAL [arg=1922, m2={5:0}, m={3:0}, next_alloc_idx=3, r=1, state=1, top={4:0}] [L770] CALL 1 __VERIFIER_atomic_assert(r) [L763] EXPR 1 !r || !isEmpty() [L763] CALL, EXPR 1 isEmpty() [L737] EXPR 1 \read(top) [L737] COND FALSE 1 !(top == 0) [L740] 1 return 0; [L763] RET, EXPR 1 isEmpty() [L763] EXPR 1 !r || !isEmpty() [L763] COND TRUE 1 !(!(!r || !isEmpty())) [L763] 1 reach_error() VAL [\old(r)=1, m2={5:0}, m={3:0}, next_alloc_idx=3, r=1, state=1, top={4:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 2097 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 24.2s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 7.8s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 6003 NumberOfCodeBlocks, 6003 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3991 ConstructedInterpolants, 0 QuantifiedInterpolants, 4207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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, ConComCheckerStatistics: CheckTime: 0.0s, ConditionCalculationTime: 0.0s, CommutingCounterexamples: 0, ConditionCalculations: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0, QuantifiedConditions: 0, FalseConditions: 0 RESULT: Ultimate proved your program to be incorrect! [2024-11-14 11:46:29,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...