/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/unwind2-nondet.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.conditional-comm-aee53f6 [2024-11-16 00:38:49,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 00:38:49,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2024-11-16 00:38:49,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 00:38:49,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 00:38:49,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 00:38:49,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 00:38:49,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 00:38:49,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 00:38:49,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 00:38:49,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 00:38:49,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 00:38:49,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 00:38:49,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 00:38:49,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 00:38:49,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 00:38:49,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 00:38:49,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 00:38:49,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-16 00:38:49,485 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-16 00:38:49,485 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-16 00:38:49,485 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 00:38:49,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 00:38:49,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 00:38:49,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 00:38:49,742 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 00:38:49,742 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 00:38:49,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind2-nondet.i [2024-11-16 00:38:50,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 00:38:51,242 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 00:38:51,243 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-theta/unwind2-nondet.i [2024-11-16 00:38:51,267 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/c5544f18c/0896bad869de459c965abb6cada08380/FLAG3006f2ebe [2024-11-16 00:38:51,286 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/c5544f18c/0896bad869de459c965abb6cada08380 [2024-11-16 00:38:51,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 00:38:51,292 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-16 00:38:51,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 00:38:51,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 00:38:51,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 00:38:51,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168ffa60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51, skipping insertion in model container [2024-11-16 00:38:51,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 00:38:51,639 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/unwind2-nondet.i[33026,33039] [2024-11-16 00:38:51,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 00:38:51,664 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 00:38:51,709 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/unwind2-nondet.i[33026,33039] [2024-11-16 00:38:51,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 00:38:51,757 INFO L204 MainTranslator]: Completed translation [2024-11-16 00:38:51,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51 WrapperNode [2024-11-16 00:38:51,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 00:38:51,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 00:38:51,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 00:38:51,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 00:38:51,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,796 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 82 [2024-11-16 00:38:51,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 00:38:51,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 00:38:51,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 00:38:51,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 00:38:51,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 00:38:51,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-16 00:38:51,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-16 00:38:51,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-16 00:38:51,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (1/1) ... [2024-11-16 00:38:51,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 00:38:51,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:51,862 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 00:38:51,869 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 00:38:51,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 00:38:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-16 00:38:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-16 00:38:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-16 00:38:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-16 00:38:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 00:38:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 00:38:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 00:38:51,889 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 00:38:52,027 INFO L238 CfgBuilder]: Building ICFG [2024-11-16 00:38:52,029 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 00:38:52,171 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 00:38:52,171 INFO L287 CfgBuilder]: Performing block encoding [2024-11-16 00:38:52,178 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 00:38:52,178 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-16 00:38:52,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:52 BoogieIcfgContainer [2024-11-16 00:38:52,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-16 00:38:52,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 00:38:52,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 00:38:52,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 00:38:52,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:38:51" (1/3) ... [2024-11-16 00:38:52,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1cd2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:52, skipping insertion in model container [2024-11-16 00:38:52,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:51" (2/3) ... [2024-11-16 00:38:52,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1cd2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:52, skipping insertion in model container [2024-11-16 00:38:52,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:52" (3/3) ... [2024-11-16 00:38:52,187 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-nondet.i [2024-11-16 00:38:52,200 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 00:38:52,201 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind2-nondet.i that has 3 procedures, 88 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-16 00:38:52,201 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 00:38:52,279 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 00:38:52,334 INFO L126 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 00:38:52,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-16 00:38:52,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:52,339 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 00:38:52,341 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 00:38:52,418 INFO L181 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-16 00:38:52,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork1 ======== [2024-11-16 00:38:52,452 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;@21e52de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 00:38:52,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 00:38:52,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:52,689 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:52,689 INFO L132 ounterexampleChecker]: Examining path program with hash -1096289473, occurence #1 [2024-11-16 00:38:52,689 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:52,689 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:52,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash -400647181, now seen corresponding path program 1 times [2024-11-16 00:38:52,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:52,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009032826] [2024-11-16 00:38:52,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:52,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:52,872 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 00:38:52,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:52,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009032826] [2024-11-16 00:38:52,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009032826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:38:52,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:38:52,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 00:38:52,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644791133] [2024-11-16 00:38:52,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:38:52,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 00:38:52,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:52,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 00:38:52,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 00:38:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:52,899 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:52,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 00:38:52,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:52,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:52,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 00:38:52,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:52,921 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:52,921 INFO L132 ounterexampleChecker]: Examining path program with hash 21815855, occurence #1 [2024-11-16 00:38:52,921 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:52,921 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:52,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:52,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1767016625, now seen corresponding path program 1 times [2024-11-16 00:38:52,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:52,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469337478] [2024-11-16 00:38:52,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:52,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:53,488 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 00:38:53,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:53,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469337478] [2024-11-16 00:38:53,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469337478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:38:53,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:38:53,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 00:38:53,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046726047] [2024-11-16 00:38:53,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:38:53,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 00:38:53,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:53,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 00:38:53,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 00:38:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:53,492 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:53,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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 00:38:53,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:53,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:53,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:38:53,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 00:38:53,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:53,864 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:53,864 INFO L132 ounterexampleChecker]: Examining path program with hash -1761419150, occurence #1 [2024-11-16 00:38:53,864 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:53,864 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:53,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:53,865 INFO L85 PathProgramCache]: Analyzing trace with hash 781335513, now seen corresponding path program 1 times [2024-11-16 00:38:53,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:53,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552248899] [2024-11-16 00:38:53,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:53,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:54,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552248899] [2024-11-16 00:38:54,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552248899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:38:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469341856] [2024-11-16 00:38:54,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:54,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:54,259 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 00:38:54,260 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 00:38:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:54,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-16 00:38:54,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:38:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:54,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 00:38:55,270 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:55,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469341856] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 00:38:55,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 00:38:55,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 15] total 36 [2024-11-16 00:38:55,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967696291] [2024-11-16 00:38:55,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 00:38:55,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-16 00:38:55,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:55,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-16 00:38:55,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1120, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 00:38:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:55,276 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:55,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.4166666666666665) internal successors, (123), 36 states have internal predecessors, (123), 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 00:38:55,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:55,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:38:55,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:56,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:38:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-16 00:38:56,940 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 00:38:57,130 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 00:38:57,131 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:57,131 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:57,131 INFO L132 ounterexampleChecker]: Examining path program with hash -1761419150, occurence #2 [2024-11-16 00:38:57,131 INFO L137 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-16 00:38:57,132 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-16 00:38:57,132 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,132 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-16 00:38:57,133 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,133 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-16 00:38:57,133 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,133 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-16 00:38:57,133 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,133 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-16 00:38:57,133 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,133 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-16 00:38:57,133 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,133 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-16 00:38:57,133 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,133 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-16 00:38:57,133 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,134 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-16 00:38:57,134 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,134 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-16 00:38:57,134 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,134 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-16 00:38:57,134 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,134 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-16 00:38:57,143 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-16 00:38:57,143 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-16 00:38:57,144 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,144 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-16 00:38:57,144 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,144 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-11-16 00:38:57,144 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-16 00:38:57,144 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-11-16 00:38:57,144 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:57,144 WARN L199 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-16 00:38:57,144 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:57,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:57,145 INFO L85 PathProgramCache]: Analyzing trace with hash -842709267, now seen corresponding path program 2 times [2024-11-16 00:38:57,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:57,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785095002] [2024-11-16 00:38:57,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:57,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 00:38:57,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:57,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785095002] [2024-11-16 00:38:57,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785095002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:38:57,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450111093] [2024-11-16 00:38:57,614 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 00:38:57,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:57,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:57,617 INFO L229 MonitoredProcess]: Starting monitored process 4 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 00:38:57,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 00:38:57,695 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 00:38:57,695 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 00:38:57,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 00:38:57,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:38:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:58,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 00:38:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:58,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450111093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 00:38:58,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 00:38:58,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23, 23] total 58 [2024-11-16 00:38:58,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133869177] [2024-11-16 00:38:58,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 00:38:58,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-16 00:38:58,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:58,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-16 00:38:58,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=2992, Unknown=0, NotChecked=0, Total=3306 [2024-11-16 00:38:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:58,997 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:58,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 2.9310344827586206) internal successors, (170), 58 states have internal predecessors, (170), 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 00:38:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:38:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-11-16 00:38:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:39:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-16 00:39:02,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-11-16 00:39:02,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 00:39:02,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:39:02,530 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:39:02,530 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:39:02,530 INFO L132 ounterexampleChecker]: Examining path program with hash 1495220785, occurence #1 [2024-11-16 00:39:02,530 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:39:02,530 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:39:02,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:39:02,531 INFO L85 PathProgramCache]: Analyzing trace with hash 602269577, now seen corresponding path program 3 times [2024-11-16 00:39:02,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:39:02,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745872514] [2024-11-16 00:39:02,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:39:02,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:39:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:39:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-16 00:39:02,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:39:02,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745872514] [2024-11-16 00:39:02,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745872514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:39:02,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192668615] [2024-11-16 00:39:02,867 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 00:39:02,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:39:02,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:39:02,870 INFO L229 MonitoredProcess]: Starting monitored process 5 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 00:39:02,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 00:39:02,939 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-16 00:39:02,939 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 00:39:02,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 00:39:02,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:39:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-16 00:39:03,083 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 00:39:03,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192668615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:39:03,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 00:39:03,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 15 [2024-11-16 00:39:03,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339676297] [2024-11-16 00:39:03,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:39:03,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 00:39:03,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:39:03,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 00:39:03,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-16 00:39:03,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:03,085 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:39:03,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 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 00:39:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:39:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-11-16 00:39:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2024-11-16 00:39:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:39:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-16 00:39:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2024-11-16 00:39:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:39:08,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 00:39:08,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:39:08,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:39:08,419 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:39:08,419 INFO L132 ounterexampleChecker]: Examining path program with hash 1885144727, occurence #1 [2024-11-16 00:39:08,419 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:39:08,419 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:39:08,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:39:08,420 INFO L85 PathProgramCache]: Analyzing trace with hash 527110481, now seen corresponding path program 1 times [2024-11-16 00:39:08,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:39:08,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091308245] [2024-11-16 00:39:08,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:39:08,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:39:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:39:08,592 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 00:39:08,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:39:08,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091308245] [2024-11-16 00:39:08,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091308245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:39:08,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:39:08,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 00:39:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199223619] [2024-11-16 00:39:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:39:08,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 00:39:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:39:08,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 00:39:08,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 00:39:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:08,594 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:39:08,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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 00:39:08,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:08,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:39:08,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-11-16 00:39:08,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2024-11-16 00:39:08,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:39:08,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:39:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 00:39:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-16 00:39:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2024-11-16 00:39:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:39:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 00:39:10,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 00:39:10,713 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:39:10,713 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:39:10,713 INFO L132 ounterexampleChecker]: Examining path program with hash 423071933, occurence #1 [2024-11-16 00:39:10,713 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:39:10,713 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:39:10,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:39:10,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2071903852, now seen corresponding path program 4 times [2024-11-16 00:39:10,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:39:10,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083033573] [2024-11-16 00:39:10,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:39:10,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:39:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 00:39:10,724 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 00:39:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 00:39:10,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 00:39:10,752 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-16 00:39:10,752 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 00:39:10,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 00:39:10,761 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2024-11-16 00:39:10,762 INFO L320 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork1 was UNSAFE (1/3) [2024-11-16 00:39:10,807 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 00:39:10,807 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 00:39:10,822 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 00:39:10,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:39:10 BasicIcfg [2024-11-16 00:39:10,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 00:39:10,823 INFO L158 Benchmark]: Toolchain (without parser) took 19531.58ms. Allocated memory was 100.7MB in the beginning and 251.7MB in the end (delta: 151.0MB). Free memory was 70.4MB in the beginning and 131.7MB in the end (delta: -61.3MB). Peak memory consumption was 90.5MB. Max. memory is 8.0GB. [2024-11-16 00:39:10,823 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:39:10,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.21ms. Allocated memory is still 100.7MB. Free memory was 70.4MB in the beginning and 50.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2024-11-16 00:39:10,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.54ms. Allocated memory is still 100.7MB. Free memory was 50.2MB in the beginning and 48.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:39:10,824 INFO L158 Benchmark]: Boogie Preprocessor took 26.41ms. Allocated memory is still 100.7MB. Free memory was 48.6MB in the beginning and 47.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:39:10,824 INFO L158 Benchmark]: RCFGBuilder took 354.62ms. Allocated memory is still 100.7MB. Free memory was 47.3MB in the beginning and 35.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-16 00:39:10,825 INFO L158 Benchmark]: TraceAbstraction took 18641.28ms. Allocated memory was 100.7MB in the beginning and 251.7MB in the end (delta: 151.0MB). Free memory was 34.3MB in the beginning and 131.7MB in the end (delta: -97.4MB). Peak memory consumption was 56.9MB. Max. memory is 8.0GB. [2024-11-16 00:39:10,826 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 464.21ms. Allocated memory is still 100.7MB. Free memory was 70.4MB in the beginning and 50.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.54ms. Allocated memory is still 100.7MB. Free memory was 50.2MB in the beginning and 48.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 26.41ms. Allocated memory is still 100.7MB. Free memory was 48.6MB in the beginning and 47.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 354.62ms. Allocated memory is still 100.7MB. Free memory was 47.3MB in the beginning and 35.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 18641.28ms. Allocated memory was 100.7MB in the beginning and 251.7MB in the end (delta: 151.0MB). Free memory was 34.3MB in the beginning and 131.7MB in the end (delta: -97.4MB). Peak memory consumption was 56.9MB. 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: 16039, independent: 14812, independent conditional: 13080, independent unconditional: 1732, dependent: 1227, dependent conditional: 1219, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14823, independent: 14812, independent conditional: 13080, independent unconditional: 1732, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 14823, independent: 14812, independent conditional: 13080, independent unconditional: 1732, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14836, independent: 14812, independent conditional: 13080, independent unconditional: 1732, dependent: 24, dependent conditional: 16, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14836, independent: 14812, independent conditional: 0, independent unconditional: 14812, dependent: 24, dependent conditional: 13, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14836, independent: 14812, independent conditional: 0, independent unconditional: 14812, dependent: 24, dependent conditional: 13, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1639, independent: 1618, independent conditional: 0, independent unconditional: 1618, dependent: 21, dependent conditional: 13, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1639, independent: 1616, independent conditional: 0, independent unconditional: 1616, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 23, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 21, dependent conditional: 13, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 21, dependent conditional: 13, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 198, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 132, dependent conditional: 56, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 14836, independent: 13194, independent conditional: 0, independent unconditional: 13194, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 1639, unknown conditional: 13, unknown unconditional: 1626] , Statistics on independence cache: Total cache size (in pairs): 1639, Positive cache size: 1618, Positive conditional cache size: 0, Positive unconditional cache size: 1618, Negative cache size: 21, Negative conditional cache size: 13, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 13083, Maximal queried relation: 5, Independence queries for same thread: 1216, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 525, Number of trivial persistent sets: 467, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1740, independent: 1732, independent conditional: 0, independent unconditional: 1732, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 16039, independent: 14812, independent conditional: 13080, independent unconditional: 1732, dependent: 1227, dependent conditional: 1219, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14823, independent: 14812, independent conditional: 13080, independent unconditional: 1732, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 14823, independent: 14812, independent conditional: 13080, independent unconditional: 1732, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14836, independent: 14812, independent conditional: 13080, independent unconditional: 1732, dependent: 24, dependent conditional: 16, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14836, independent: 14812, independent conditional: 0, independent unconditional: 14812, dependent: 24, dependent conditional: 13, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14836, independent: 14812, independent conditional: 0, independent unconditional: 14812, dependent: 24, dependent conditional: 13, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1639, independent: 1618, independent conditional: 0, independent unconditional: 1618, dependent: 21, dependent conditional: 13, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1639, independent: 1616, independent conditional: 0, independent unconditional: 1616, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 23, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 21, dependent conditional: 13, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 21, dependent conditional: 13, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 198, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 132, dependent conditional: 56, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 14836, independent: 13194, independent conditional: 0, independent unconditional: 13194, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 1639, unknown conditional: 13, unknown unconditional: 1626] , Statistics on independence cache: Total cache size (in pairs): 1639, Positive cache size: 1618, Positive conditional cache size: 0, Positive unconditional cache size: 1618, Negative cache size: 21, Negative conditional cache size: 13, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 13083, Maximal queried relation: 5, Independence queries for same thread: 1216 - 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] [L775] 0 _N = __VERIFIER_nondet_int() VAL [_N=2, limit=0] [L776] CALL 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1) [L750] COND FALSE 0 !(!cond) VAL [\old(cond)=1, _N=2, cond=1, limit=0] [L776] RET 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1) [L777] 0 pthread_t t1, t2; VAL [_N=2, limit=0] [L778] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [_N=2, limit=0, t1=-1] [L757] 1 int i, bound; VAL [\old(arg)={0:0}, _N=2, arg={0:0}, limit=0] [L758] 1 int lim = _N; VAL [\old(arg)={0:0}, _N=2, arg={0:0}, lim=2, limit=0] [L779] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [_N=2, limit=0, t1=-1, t2=0] [L766] 2 int i, bound; VAL [\old(arg)={0:0}, _N=2, arg={0:0}, limit=0] [L767] 2 int lim = _N + 1; VAL [\old(arg)={0:0}, _N=2, arg={0:0}, lim=3, limit=0] [L768] 2 limit = lim VAL [\old(arg)={0:0}, _N=2, arg={0:0}, lim=3, limit=3] [L759] 1 limit = lim VAL [\old(arg)={0:0}, _N=2, arg={0:0}, lim=2, limit=2] [L760] 1 bound = limit VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, lim=2, limit=2] [L761] 1 i = 0 VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=0, lim=2, limit=2] [L769] 2 bound = limit VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, lim=3, limit=2] [L770] 2 i = 0 VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=0, lim=3, limit=2] [L761] COND TRUE 1 i < bound VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=0, lim=2, limit=2] [L761] 1 i++ VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=1, lim=2, limit=2] [L770] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=0, lim=3, limit=2] [L770] 2 i++ VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=1, lim=3, limit=2] [L761] COND TRUE 1 i < bound VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=1, lim=2, limit=2] [L761] 1 i++ VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=1, lim=2, limit=2] [L770] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=1, lim=3, limit=2] [L770] 2 i++ VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=2, lim=3, limit=2] [L770] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, _N=2, arg={0:0}, bound=2, i=2, lim=3, limit=2] [L771] CALL 2 __VERIFIER_assert(i == lim) [L753] COND TRUE 2 !expression VAL [\old(expression)=0, _N=2, expression=0, limit=2] [L753] 2 reach_error() VAL [\old(expression)=0, _N=2, expression=0, limit=2] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 136 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 18.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 12.8s, 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: 281, 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, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 749 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 3176 SizeOfPredicates, 41 NumberOfNonLiveVariables, 417 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 196/330 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: 14, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0, QuantifiedConditions: 0, FalseConditions: 0 RESULT: Ultimate proved your program to be incorrect! [2024-11-16 00:39:10,845 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...