/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-theta/unwind3-nondet.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.conditional-comm-aee53f6 [2024-11-16 00:39:00,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 00:39:01,064 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2024-11-16 00:39:01,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 00:39:01,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 00:39:01,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 00:39:01,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 00:39:01,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 00:39:01,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 00:39:01,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 00:39:01,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 00:39:01,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 00:39:01,092 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 00:39:01,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 00:39:01,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 00:39:01,092 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 00:39:01,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 00:39:01,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-16 00:39:01,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 00:39:01,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-16 00:39:01,094 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-16 00:39:01,094 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 [2024-11-16 00:39:01,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 00:39:01,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 00:39:01,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 00:39:01,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 00:39:01,358 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 00:39:01,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind3-nondet.i [2024-11-16 00:39:02,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 00:39:02,913 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 00:39:02,914 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-theta/unwind3-nondet.i [2024-11-16 00:39:02,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/3f69cbb93/e9d1e0036c2e405da6632afe33944adc/FLAG9ee09d312 [2024-11-16 00:39:02,936 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/3f69cbb93/e9d1e0036c2e405da6632afe33944adc [2024-11-16 00:39:02,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 00:39:02,941 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-16 00:39:02,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 00:39:02,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 00:39:02,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 00:39:02,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:39:02" (1/1) ... [2024-11-16 00:39:02,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d04845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:02, skipping insertion in model container [2024-11-16 00:39:02,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:39:02" (1/1) ... [2024-11-16 00:39:02,970 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 00:39:03,266 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-theta/unwind3-nondet.i[33026,33039] [2024-11-16 00:39:03,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 00:39:03,291 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 00:39:03,331 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-theta/unwind3-nondet.i[33026,33039] [2024-11-16 00:39:03,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 00:39:03,371 INFO L204 MainTranslator]: Completed translation [2024-11-16 00:39:03,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03 WrapperNode [2024-11-16 00:39:03,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 00:39:03,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 00:39:03,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 00:39:03,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 00:39:03,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,397 INFO L138 Inliner]: procedures = 169, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-11-16 00:39:03,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 00:39:03,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 00:39:03,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 00:39:03,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 00:39:03,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 00:39:03,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-16 00:39:03,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-16 00:39:03,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-16 00:39:03,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (1/1) ... [2024-11-16 00:39:03,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 00:39:03,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:39:03,444 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) [2024-11-16 00:39:03,450 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 [2024-11-16 00:39:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 00:39:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-16 00:39:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-16 00:39:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-16 00:39:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-16 00:39:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 00:39:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 00:39:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 00:39:03,472 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 00:39:03,566 INFO L238 CfgBuilder]: Building ICFG [2024-11-16 00:39:03,567 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 00:39:03,678 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 00:39:03,679 INFO L287 CfgBuilder]: Performing block encoding [2024-11-16 00:39:03,687 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 00:39:03,688 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-16 00:39:03,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:03 BoogieIcfgContainer [2024-11-16 00:39:03,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-16 00:39:03,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 00:39:03,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 00:39:03,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 00:39:03,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:39:02" (1/3) ... [2024-11-16 00:39:03,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a886d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:39:03, skipping insertion in model container [2024-11-16 00:39:03,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:03" (2/3) ... [2024-11-16 00:39:03,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a886d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:39:03, skipping insertion in model container [2024-11-16 00:39:03,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:03" (3/3) ... [2024-11-16 00:39:03,699 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind3-nondet.i [2024-11-16 00:39:03,731 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 00:39:03,732 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind3-nondet.i that has 3 procedures, 76 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-16 00:39:03,732 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 00:39:03,801 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 00:39:03,856 INFO L126 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 00:39:03,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-16 00:39:03,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:39:03,861 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) [2024-11-16 00:39:03,863 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 [2024-11-16 00:39:03,943 INFO L181 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-16 00:39:03,955 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork0 ======== [2024-11-16 00:39:03,966 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;@103a0662, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 00:39:03,966 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 00:39:04,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:39:04,220 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:39:04,220 INFO L132 ounterexampleChecker]: Examining path program with hash 105820944, occurence #1 [2024-11-16 00:39:04,220 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:39:04,220 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:39:04,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:39:04,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1873160259, now seen corresponding path program 1 times [2024-11-16 00:39:04,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:39:04,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39064410] [2024-11-16 00:39:04,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:39:04,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:39:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:39:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:39:04,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:39:04,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39064410] [2024-11-16 00:39:04,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39064410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:39:04,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:39:04,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 00:39:04,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855729003] [2024-11-16 00:39:04,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:39:04,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 00:39:04,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:39:04,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 00:39:04,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 00:39:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:04,441 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:39:04,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 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) [2024-11-16 00:39:04,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:04,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:04,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 00:39:04,461 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:39:04,461 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:39:04,461 INFO L132 ounterexampleChecker]: Examining path program with hash -2009868224, occurence #1 [2024-11-16 00:39:04,461 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:39:04,461 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:39:04,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:39:04,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1010756813, now seen corresponding path program 1 times [2024-11-16 00:39:04,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:39:04,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321891833] [2024-11-16 00:39:04,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:39:04,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:39:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:39:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:39:04,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:39:04,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321891833] [2024-11-16 00:39:04,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321891833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:39:04,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:39:04,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 00:39:04,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294694] [2024-11-16 00:39:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:39:04,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 00:39:04,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:39:04,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 00:39:04,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 00:39:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:04,975 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:39:04,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-16 00:39:04,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:04,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:05,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 00:39:05,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 00:39:05,152 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:39:05,152 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:39:05,153 INFO L132 ounterexampleChecker]: Examining path program with hash -165032077, occurence #1 [2024-11-16 00:39:05,153 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:39:05,153 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:39:05,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:39:05,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1020104910, now seen corresponding path program 1 times [2024-11-16 00:39:05,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:39:05,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323766684] [2024-11-16 00:39:05,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:39:05,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:39:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:39:05,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:39:05,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:39:05,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323766684] [2024-11-16 00:39:05,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323766684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:39:05,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481325913] [2024-11-16 00:39:05,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:39:05,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:39:05,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:39:05,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 00:39:05,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 00:39:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:39:05,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-16 00:39:05,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:39:05,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:39:05,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 00:39:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:39:06,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481325913] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 00:39:06,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 00:39:06,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 24 [2024-11-16 00:39:06,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109680880] [2024-11-16 00:39:06,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 00:39:06,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-16 00:39:06,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:39:06,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-16 00:39:06,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2024-11-16 00:39:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:06,051 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:39:06,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 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) [2024-11-16 00:39:06,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:06,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-16 00:39:06,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 00:39:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 00:39:06,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 00:39:06,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:39:06,606 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:39:06,606 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:39:06,607 INFO L132 ounterexampleChecker]: Examining path program with hash -165032077, occurence #2 [2024-11-16 00:39:06,607 INFO L137 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-16 00:39:06,607 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-16 00:39:06,608 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,608 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-16 00:39:06,608 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,608 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-16 00:39:06,608 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,608 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-16 00:39:06,608 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,608 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-16 00:39:06,608 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,608 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-16 00:39:06,608 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,609 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-16 00:39:06,609 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,609 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-16 00:39:06,609 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,609 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-16 00:39:06,609 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,609 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-16 00:39:06,609 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-16 00:39:06,609 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-16 00:39:06,609 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,609 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-11-16 00:39:06,610 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,610 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-16 00:39:06,610 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,610 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2024-11-16 00:39:06,610 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,610 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-16 00:39:06,610 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,610 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2024-11-16 00:39:06,610 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,610 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-11-16 00:39:06,610 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-16 00:39:06,610 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2024-11-16 00:39:06,610 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,611 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-16 00:39:06,611 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,611 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2024-11-16 00:39:06,611 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:39:06,611 WARN L199 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-16 00:39:06,611 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:39:06,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:39:06,611 INFO L85 PathProgramCache]: Analyzing trace with hash -970705129, now seen corresponding path program 2 times [2024-11-16 00:39:06,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:39:06,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392618248] [2024-11-16 00:39:06,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:39:06,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:39:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 00:39:06,632 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 00:39:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 00:39:06,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 00:39:06,662 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-16 00:39:06,663 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 00:39:06,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 00:39:06,669 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-16 00:39:06,671 INFO L320 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork0 was UNSAFE (1/2) [2024-11-16 00:39:06,722 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 00:39:06,722 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 00:39:06,743 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 [2024-11-16 00:39:06,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:39:06 BasicIcfg [2024-11-16 00:39:06,744 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 00:39:06,745 INFO L158 Benchmark]: Toolchain (without parser) took 3804.51ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 55.9MB in the beginning and 30.1MB in the end (delta: 25.8MB). Peak memory consumption was 43.1MB. Max. memory is 8.0GB. [2024-11-16 00:39:06,745 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:39:06,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.25ms. Allocated memory is still 83.9MB. Free memory was 55.9MB in the beginning and 35.9MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-16 00:39:06,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.24ms. Allocated memory is still 83.9MB. Free memory was 35.7MB in the beginning and 34.1MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-16 00:39:06,746 INFO L158 Benchmark]: Boogie Preprocessor took 14.11ms. Allocated memory is still 83.9MB. Free memory was 34.1MB in the beginning and 33.2MB in the end (delta: 977.4kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:39:06,746 INFO L158 Benchmark]: RCFGBuilder took 275.34ms. Allocated memory is still 83.9MB. Free memory was 33.2MB in the beginning and 21.3MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-16 00:39:06,747 INFO L158 Benchmark]: TraceAbstraction took 3051.32ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 20.5MB in the beginning and 30.1MB in the end (delta: -9.6MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2024-11-16 00:39:06,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 430.25ms. Allocated memory is still 83.9MB. Free memory was 55.9MB in the beginning and 35.9MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.24ms. Allocated memory is still 83.9MB. Free memory was 35.7MB in the beginning and 34.1MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.11ms. Allocated memory is still 83.9MB. Free memory was 34.1MB in the beginning and 33.2MB in the end (delta: 977.4kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 275.34ms. Allocated memory is still 83.9MB. Free memory was 33.2MB in the beginning and 21.3MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3051.32ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 20.5MB in the beginning and 30.1MB in the end (delta: -9.6MB). Peak memory consumption was 9.6MB. 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: 671, independent: 605, independent conditional: 88, independent unconditional: 517, dependent: 66, dependent conditional: 64, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 607, independent: 605, independent conditional: 88, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 607, independent: 605, independent conditional: 88, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 607, independent: 605, independent conditional: 88, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 607, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 607, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 519, independent: 517, independent conditional: 0, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 519, independent: 513, independent conditional: 0, independent unconditional: 513, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, independent: 132, independent conditional: 0, independent unconditional: 132, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 607, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 519, unknown conditional: 0, unknown unconditional: 519] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 517, Positive conditional cache size: 0, Positive unconditional cache size: 517, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 88, Maximal queried relation: 0, Independence queries for same thread: 64, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 73, Number of trivial persistent sets: 68, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 519, independent: 517, independent conditional: 0, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 671, independent: 605, independent conditional: 88, independent unconditional: 517, dependent: 66, dependent conditional: 64, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 607, independent: 605, independent conditional: 88, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 607, independent: 605, independent conditional: 88, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 607, independent: 605, independent conditional: 88, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 607, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 607, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 519, independent: 517, independent conditional: 0, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 519, independent: 513, independent conditional: 0, independent unconditional: 513, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, independent: 132, independent conditional: 0, independent unconditional: 132, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 607, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 519, unknown conditional: 0, unknown unconditional: 519] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 517, Positive conditional cache size: 0, Positive unconditional cache size: 517, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 88, Maximal queried relation: 0, Independence queries for same thread: 64 - CounterExampleResult [Line: 753]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L754] 0 int _N; VAL [_N=0] [L755] 0 atomic_int limit; VAL [_N=0, limit=0] [L770] 0 _N = __VERIFIER_nondet_int() VAL [_N=1, limit=0] [L771] CALL 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff / 2) [L750] COND FALSE 0 !(!cond) VAL [\old(cond)=1, _N=1, cond=1, limit=0] [L771] RET 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff / 2) [L772] 0 limit = _N VAL [_N=1, limit=1] [L773] 0 int i = 0; VAL [_N=1, i=0, limit=1] [L773] COND TRUE 0 i < _N VAL [_N=1, i=0, limit=1] [L774] 0 pthread_t t; VAL [_N=1, i=0, limit=1] [L775] FCALL, FORK 0 pthread_create(&t, 0, f1, 0) VAL [\old(arg)={0:0}, _N=1, i=0, limit=1, t=-1] [L757] 1 int l; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=1] [L758] 1 l = limit VAL [\old(arg)={0:0}, _N=1, arg={0:0}, l=1, limit=1] [L759] 1 limit = l + 1 VAL [\old(arg)={0:0}, _N=1, arg={0:0}, l=1, limit=2] [L760] 1 return 0; VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, l=1, limit=2] [L773] 0 ++i VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, i=1, l=1, limit=2] [L773] COND FALSE 0 !(i < _N) VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, i=1, l=1, limit=2] [L777] 0 pthread_t t; VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, l=1, limit=2] [L778] FCALL, FORK 0 pthread_create(&t, 0, f2, 0) VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, l=1, limit=2, t=0] [L763] 2 int i, bound; VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, l=1, limit=2] [L764] 2 bound = limit VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, l=1, limit=2] [L765] 2 i = 0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=0, l=1, limit=2] [L779] 0 return 0; VAL [\old(arg)={0:0}, \result=0, \result={0:0}, _N=1, arg={0:0}, l=1, limit=2, t=0] [L765] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=0, l=1, limit=2] [L765] 2 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=1, l=1, limit=2] [L765] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=1, l=1, limit=2] [L765] 2 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=2, l=1, limit=2] [L765] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=2, l=1, limit=2] [L766] CALL 2 __VERIFIER_assert(i != 2 * _N) [L753] COND TRUE 2 !expression VAL [\old(arg)={0:0}, \old(expression)=0, \result={0:0}, _N=1, arg={0:0}, expression=0, l=1, limit=2] [L753] 2 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, \result={0:0}, _N=1, arg={0:0}, expression=0, l=1, limit=2] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.8s, 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: 27, 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, 1.3s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 949 SizeOfPredicates, 9 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 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: 18, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0, QuantifiedConditions: 0, FalseConditions: 0 RESULT: Ultimate proved your program to be incorrect! [2024-11-16 00:39:06,769 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...