/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 546 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-17da818-m [2024-05-05 19:15:43,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-05 19:15:43,840 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-05 19:15:43,843 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-05 19:15:43,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-05 19:15:43,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-05 19:15:43,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-05 19:15:43,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-05 19:15:43,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-05 19:15:43,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-05 19:15:43,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-05 19:15:43,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-05 19:15:43,876 INFO L153 SettingsManager]: * Use SBE=true [2024-05-05 19:15:43,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-05 19:15:43,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-05 19:15:43,877 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-05 19:15:43,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-05 19:15:43,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-05 19:15:43,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-05 19:15:43,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-05 19:15:43,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-05 19:15:43,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-05 19:15:43,878 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-05 19:15:43,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-05 19:15:43,879 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-05 19:15:43,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-05 19:15:43,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-05 19:15:43,879 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-05 19:15:43,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-05 19:15:43,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-05 19:15:43,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-05 19:15:43,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-05 19:15:43,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-05 19:15:43,881 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-05 19:15:43,881 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-05 19:15:43,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-05 19:15:43,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-05 19:15:43,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-05 19:15:43,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-05 19:15:43,882 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: seed for random criterion -> 546 [2024-05-05 19:15:44,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-05 19:15:44,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-05 19:15:44,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-05 19:15:44,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-05 19:15:44,104 INFO L274 PluginConnector]: CDTParser initialized [2024-05-05 19:15:44,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2024-05-05 19:15:45,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-05 19:15:45,536 INFO L384 CDTParser]: Found 1 translation units. [2024-05-05 19:15:45,536 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2024-05-05 19:15:45,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1f573b504/c20564a1f5d8432ba0ae71d665df4bac/FLAG95d8302ce [2024-05-05 19:15:45,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1f573b504/c20564a1f5d8432ba0ae71d665df4bac [2024-05-05 19:15:45,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-05 19:15:45,573 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-05 19:15:45,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-05 19:15:45,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-05 19:15:45,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-05 19:15:45,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:45,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acda786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45, skipping insertion in model container [2024-05-05 19:15:45,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:45,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-05 19:15:45,897 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i[31042,31055] [2024-05-05 19:15:45,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-05 19:15:45,918 INFO L202 MainTranslator]: Completed pre-run [2024-05-05 19:15:45,944 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i[31042,31055] [2024-05-05 19:15:45,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-05 19:15:45,975 INFO L206 MainTranslator]: Completed translation [2024-05-05 19:15:45,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45 WrapperNode [2024-05-05 19:15:45,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-05 19:15:45,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-05 19:15:45,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-05 19:15:45,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-05 19:15:45,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:45,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,014 INFO L138 Inliner]: procedures = 177, calls = 34, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 172 [2024-05-05 19:15:46,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-05 19:15:46,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-05 19:15:46,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-05 19:15:46,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-05 19:15:46,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-05 19:15:46,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-05 19:15:46,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-05 19:15:46,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-05 19:15:46,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (1/1) ... [2024-05-05 19:15:46,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-05 19:15:46,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 19:15:46,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-05 19:15:46,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-05 19:15:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-05 19:15:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-05-05 19:15:46,106 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-05-05 19:15:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-05 19:15:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-05 19:15:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-05 19:15:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-05 19:15:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-05 19:15:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-05 19:15:46,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-05 19:15:46,107 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-05 19:15:46,198 INFO L241 CfgBuilder]: Building ICFG [2024-05-05 19:15:46,199 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-05 19:15:46,494 INFO L282 CfgBuilder]: Performing block encoding [2024-05-05 19:15:46,642 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-05 19:15:46,642 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2024-05-05 19:15:46,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.05 07:15:46 BoogieIcfgContainer [2024-05-05 19:15:46,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-05 19:15:46,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-05 19:15:46,646 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-05 19:15:46,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-05 19:15:46,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.05 07:15:45" (1/3) ... [2024-05-05 19:15:46,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d8ecb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.05 07:15:46, skipping insertion in model container [2024-05-05 19:15:46,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 07:15:45" (2/3) ... [2024-05-05 19:15:46,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d8ecb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.05 07:15:46, skipping insertion in model container [2024-05-05 19:15:46,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.05 07:15:46" (3/3) ... [2024-05-05 19:15:46,651 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longer-1.i [2024-05-05 19:15:46,659 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-05 19:15:46,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-05 19:15:46,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-05 19:15:46,669 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-05 19:15:46,722 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-05 19:15:46,763 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-05 19:15:46,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-05 19:15:46,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 19:15:46,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-05 19:15:46,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-05 19:15:46,807 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-05 19:15:46,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 19:15:46,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-05 19:15:46,823 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6b155543, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=546, mConComCheckerConditionCriterion=false [2024-05-05 19:15:46,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-05 19:15:46,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-05 19:15:46,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 19:15:46,883 INFO L85 PathProgramCache]: Analyzing trace with hash -546027634, now seen corresponding path program 1 times [2024-05-05 19:15:46,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 19:15:46,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263026686] [2024-05-05 19:15:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 19:15:46,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 19:15:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 19:15:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 19:15:47,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 19:15:47,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263026686] [2024-05-05 19:15:47,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263026686] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 19:15:47,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 19:15:47,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-05 19:15:47,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701606005] [2024-05-05 19:15:47,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 19:15:47,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-05 19:15:47,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 19:15:47,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-05 19:15:47,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-05 19:15:47,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 19:15:47,409 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 19:15:47,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-05-05 19:15:47,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 19:15:47,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 19:15:47,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-05 19:15:47,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-05 19:15:47,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 19:15:47,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1492565868, now seen corresponding path program 1 times [2024-05-05 19:15:47,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 19:15:47,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772167284] [2024-05-05 19:15:47,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 19:15:47,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 19:15:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 19:15:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 19:15:47,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 19:15:47,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772167284] [2024-05-05 19:15:47,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772167284] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 19:15:47,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 19:15:47,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-05 19:15:47,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729142069] [2024-05-05 19:15:47,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 19:15:47,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-05 19:15:47,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 19:15:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-05 19:15:47,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-05-05 19:15:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 19:15:47,573 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 19:15:47,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-05-05 19:15:47,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-05 19:15:47,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 19:15:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 19:15:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-05-05 19:15:47,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-05 19:15:47,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-05 19:15:47,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 19:15:47,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1308215994, now seen corresponding path program 1 times [2024-05-05 19:15:47,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 19:15:47,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033157325] [2024-05-05 19:15:47,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 19:15:47,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 19:15:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-05 19:15:47,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-05 19:15:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-05 19:15:47,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-05 19:15:47,794 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-05 19:15:47,795 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-05-05 19:15:47,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-05-05 19:15:47,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-05-05 19:15:47,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-05 19:15:47,806 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-05-05 19:15:47,810 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-05 19:15:47,810 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2024-05-05 19:15:47,848 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2024-05-05 19:15:47,849 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch10 could not be translated [2024-05-05 19:15:47,850 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch10 could not be translated [2024-05-05 19:15:47,850 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2024-05-05 19:15:47,851 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2024-05-05 19:15:47,852 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2024-05-05 19:15:47,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.05 07:15:47 BasicIcfg [2024-05-05 19:15:47,860 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-05 19:15:47,860 INFO L158 Benchmark]: Toolchain (without parser) took 2287.18ms. Allocated memory was 210.8MB in the beginning and 311.4MB in the end (delta: 100.7MB). Free memory was 136.4MB in the beginning and 186.2MB in the end (delta: -49.9MB). Peak memory consumption was 50.4MB. Max. memory is 8.0GB. [2024-05-05 19:15:47,860 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 171.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-05 19:15:47,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.82ms. Allocated memory was 210.8MB in the beginning and 311.4MB in the end (delta: 100.7MB). Free memory was 136.2MB in the beginning and 269.9MB in the end (delta: -133.7MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2024-05-05 19:15:47,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.59ms. Allocated memory is still 311.4MB. Free memory was 269.9MB in the beginning and 267.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-05 19:15:47,861 INFO L158 Benchmark]: Boogie Preprocessor took 20.11ms. Allocated memory is still 311.4MB. Free memory was 267.8MB in the beginning and 265.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-05 19:15:47,862 INFO L158 Benchmark]: RCFGBuilder took 608.22ms. Allocated memory is still 311.4MB. Free memory was 265.7MB in the beginning and 225.9MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2024-05-05 19:15:47,862 INFO L158 Benchmark]: TraceAbstraction took 1213.84ms. Allocated memory is still 311.4MB. Free memory was 224.8MB in the beginning and 186.2MB in the end (delta: 38.6MB). Peak memory consumption was 37.6MB. Max. memory is 8.0GB. [2024-05-05 19:15:47,863 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 171.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 400.82ms. Allocated memory was 210.8MB in the beginning and 311.4MB in the end (delta: 100.7MB). Free memory was 136.2MB in the beginning and 269.9MB in the end (delta: -133.7MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.59ms. Allocated memory is still 311.4MB. Free memory was 269.9MB in the beginning and 267.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.11ms. Allocated memory is still 311.4MB. Free memory was 267.8MB in the beginning and 265.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 608.22ms. Allocated memory is still 311.4MB. Free memory was 265.7MB in the beginning and 225.9MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1213.84ms. Allocated memory is still 311.4MB. Free memory was 224.8MB in the beginning and 186.2MB in the end (delta: 38.6MB). Peak memory consumption was 37.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 526, independent: 415, independent conditional: 415, independent unconditional: 0, dependent: 111, dependent conditional: 111, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 415, independent: 415, independent conditional: 415, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 415, independent: 415, independent conditional: 415, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 415, independent: 415, independent conditional: 415, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 415, independent: 415, independent conditional: 176, independent unconditional: 239, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 415, independent: 415, independent conditional: 80, independent unconditional: 335, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 415, independent: 415, independent conditional: 80, independent unconditional: 335, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 162, independent: 162, independent conditional: 11, independent unconditional: 151, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 162, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 415, independent: 253, independent conditional: 69, independent unconditional: 184, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 162, unknown conditional: 11, unknown unconditional: 151] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 162, Positive conditional cache size: 11, Positive unconditional cache size: 151, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 96, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 415, independent: 415, independent conditional: 176, independent unconditional: 239, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 415, independent: 415, independent conditional: 80, independent unconditional: 335, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 415, independent: 415, independent conditional: 80, independent unconditional: 335, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 162, independent: 162, independent conditional: 11, independent unconditional: 151, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 162, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 415, independent: 253, independent conditional: 69, independent unconditional: 184, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 162, unknown conditional: 11, unknown unconditional: 151] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 162, Positive conditional cache size: 11, Positive unconditional cache size: 151, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 96 ], Independence queries for same thread: 111 - CounterExampleResult [Line: 745]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L699] 0 int memory[(2*320+1)]; [L700] 0 int next_alloc_idx = 1; VAL [next_alloc_idx=1] [L701] 0 int m = 0; VAL [m={3:0}, next_alloc_idx=1] [L702] 0 int top; VAL [m={3:0}, next_alloc_idx=1, top=0] [L755] 0 int m2 = 0; VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, top=0] [L756] 0 int state = 0; VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, top=0] [L774] 0 pthread_t t; VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [L775] COND TRUE 0 1 VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [L775] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [L759] CALL 1 __VERIFIER_atomic_acquire(&m2) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L759] RET 1 __VERIFIER_atomic_acquire(&m2) [L762] 1 case 0: [L763] CALL 1 EBStack_init() [L717] 1 top = 0 VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, top=0] [L763] RET 1 EBStack_init() [L764] 1 state = 1 VAL [arg={0:0}, arg={0:0}, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L765] 1 case 1: VAL [arg={0:0}, arg={0:0}, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L766] CALL 1 __VERIFIER_atomic_release(&m2) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L766] RET 1 __VERIFIER_atomic_release(&m2) [L767] CALL 1 push_loop() [L748] 1 int r = -1; VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, r=-1, state=1, top=0] [L749] 1 int arg = __VERIFIER_nondet_int(); VAL [arg=0, m2={4:0}, m={3:0}, next_alloc_idx=1, r=-1, state=1, top=0] [L750] COND TRUE 1 1 [L751] CALL, EXPR 1 push(arg) [L726] 1 int oldTop = -1, newTop = -1; [L727] CALL, EXPR 1 index_malloc() [L704] 1 int curr_alloc_idx = -1; VAL [curr_alloc_idx=-1, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L705] CALL 1 __VERIFIER_atomic_acquire(&m) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L705] RET 1 __VERIFIER_atomic_acquire(&m) [L706] COND FALSE 1 !(next_alloc_idx+2-1 > (2*320+1)) VAL [curr_alloc_idx=-1, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L710] 1 curr_alloc_idx = next_alloc_idx VAL [curr_alloc_idx=1, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L711] 1 next_alloc_idx += 2 VAL [curr_alloc_idx=1, m2={4:0}, m={3:0}, next_alloc_idx=3, state=1, top=0] [L712] CALL 1 __VERIFIER_atomic_release(&m) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L712] RET 1 __VERIFIER_atomic_release(&m) [L714] 1 return curr_alloc_idx; VAL [\result=1, curr_alloc_idx=1, m2={4:0}, m={3:0}, next_alloc_idx=3, state=1, top=0] [L727] RET, EXPR 1 index_malloc() [L727] 1 newTop = index_malloc() VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L728] COND FALSE 1 !(newTop == 0) VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L731] 1 memory[newTop+0] = d VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L732] CALL 1 __VERIFIER_atomic_acquire(&m) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L732] RET 1 __VERIFIER_atomic_acquire(&m) [L733] 1 oldTop = top VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=0] [L734] 1 memory[newTop+1] = oldTop VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=0] [L735] 1 top = newTop VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=1] [L736] CALL 1 __VERIFIER_atomic_release(&m) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L736] RET 1 __VERIFIER_atomic_release(&m) [L737] 1 return 1; VAL [\old(d)=0, \result=1, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=1] [L751] RET, EXPR 1 push(arg) [L751] 1 r = push(arg) VAL [arg=0, m2={4:0}, m={3:0}, next_alloc_idx=3, r=1, state=1, top=1] [L752] CALL 1 __VERIFIER_atomic_assert(r) [L745] EXPR 1 !r || !isEmpty() [L745] CALL, EXPR 1 isEmpty() [L720] COND FALSE 1 !(top == 0) [L723] 1 return 0; [L745] RET, EXPR 1 isEmpty() [L745] EXPR 1 !r || !isEmpty() [L745] COND TRUE 1 !(!(!r || !isEmpty())) [L745] 1 reach_error() VAL [\old(r)=1, m2={4:0}, m={3:0}, next_alloc_idx=3, r=1, state=1, top=1] - UnprovableResult [Line: 775]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 153 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 339 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, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2024-05-05 19:15:47,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-05-05 19:15:48,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...