/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/unwind2-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.conditional-comm-aee53f6 [2024-11-16 00:38:42,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 00:38:42,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2024-11-16 00:38:42,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 00:38:42,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 00:38:42,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 00:38:42,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 00:38:42,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 00:38:42,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 00:38:42,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 00:38:42,122 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 00:38:42,122 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 00:38:42,122 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 00:38:42,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 00:38:42,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 00:38:42,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 00:38:42,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 00:38:42,123 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 00:38:42,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-16 00:38:42,124 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-16 00:38:42,124 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 00:38:42,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 00:38:42,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 00:38:42,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 00:38:42,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 00:38:42,405 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 00:38:42,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind2-1.i [2024-11-16 00:38:43,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 00:38:44,126 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 00:38:44,127 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-theta/unwind2-1.i [2024-11-16 00:38:44,144 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8a1516765/315be15384df4deaa3140b5da8e27de2/FLAGafad0cb93 [2024-11-16 00:38:44,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8a1516765/315be15384df4deaa3140b5da8e27de2 [2024-11-16 00:38:44,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 00:38:44,167 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-16 00:38:44,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 00:38:44,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 00:38:44,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 00:38:44,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ffb4fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44, skipping insertion in model container [2024-11-16 00:38:44,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 00:38:44,475 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/unwind2-1.i[33026,33039] [2024-11-16 00:38:44,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 00:38:44,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 00:38:44,564 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/unwind2-1.i[33026,33039] [2024-11-16 00:38:44,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 00:38:44,601 INFO L204 MainTranslator]: Completed translation [2024-11-16 00:38:44,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44 WrapperNode [2024-11-16 00:38:44,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 00:38:44,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 00:38:44,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 00:38:44,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 00:38:44,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,644 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 79 [2024-11-16 00:38:44,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 00:38:44,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 00:38:44,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 00:38:44,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 00:38:44,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 00:38:44,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-16 00:38:44,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-16 00:38:44,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-16 00:38:44,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (1/1) ... [2024-11-16 00:38:44,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 00:38:44,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:44,712 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 00:38:44,715 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 00:38:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 00:38:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-16 00:38:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-16 00:38:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-16 00:38:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-16 00:38:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 00:38:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 00:38:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 00:38:44,736 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 00:38:44,848 INFO L238 CfgBuilder]: Building ICFG [2024-11-16 00:38:44,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 00:38:44,992 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 00:38:44,992 INFO L287 CfgBuilder]: Performing block encoding [2024-11-16 00:38:45,000 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 00:38:45,000 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-16 00:38:45,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:45 BoogieIcfgContainer [2024-11-16 00:38:45,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-16 00:38:45,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 00:38:45,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 00:38:45,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 00:38:45,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:38:44" (1/3) ... [2024-11-16 00:38:45,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f654230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:45, skipping insertion in model container [2024-11-16 00:38:45,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:44" (2/3) ... [2024-11-16 00:38:45,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f654230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:45, skipping insertion in model container [2024-11-16 00:38:45,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:45" (3/3) ... [2024-11-16 00:38:45,009 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-1.i [2024-11-16 00:38:45,023 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 00:38:45,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind2-1.i that has 3 procedures, 85 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-16 00:38:45,024 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 00:38:45,090 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 00:38:45,141 INFO L126 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 00:38:45,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-16 00:38:45,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:45,145 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 00:38:45,147 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 00:38:45,234 INFO L181 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-16 00:38:45,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork0 ======== [2024-11-16 00:38:45,253 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;@5fd89682, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 00:38:45,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 00:38:45,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:45,512 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:45,512 INFO L132 ounterexampleChecker]: Examining path program with hash -1760722649, occurence #1 [2024-11-16 00:38:45,512 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:45,512 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:45,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash -2057802001, now seen corresponding path program 1 times [2024-11-16 00:38:45,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:45,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165255463] [2024-11-16 00:38:45,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:45,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:45,671 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 00:38:45,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:45,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165255463] [2024-11-16 00:38:45,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165255463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:38:45,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:38:45,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 00:38:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409708459] [2024-11-16 00:38:45,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:38:45,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 00:38:45,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:45,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 00:38:45,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 00:38:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:45,697 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:45,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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 00:38:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:45,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:45,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 00:38:45,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:45,727 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:45,727 INFO L132 ounterexampleChecker]: Examining path program with hash 300531497, occurence #1 [2024-11-16 00:38:45,727 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:45,727 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:45,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1530205675, now seen corresponding path program 1 times [2024-11-16 00:38:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:45,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788429046] [2024-11-16 00:38:45,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:45,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:46,066 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 00:38:46,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:46,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788429046] [2024-11-16 00:38:46,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788429046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:38:46,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:38:46,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 00:38:46,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405885694] [2024-11-16 00:38:46,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:38:46,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 00:38:46,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:46,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 00:38:46,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 00:38:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:46,070 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:46,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:38:46,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:46,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:46,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:46,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 00:38:46,232 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:46,232 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:46,233 INFO L132 ounterexampleChecker]: Examining path program with hash 1319432470, occurence #1 [2024-11-16 00:38:46,233 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:46,233 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:46,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:46,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1053468063, now seen corresponding path program 1 times [2024-11-16 00:38:46,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:46,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651528818] [2024-11-16 00:38:46,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:46,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:46,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651528818] [2024-11-16 00:38:46,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651528818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:38:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498826287] [2024-11-16 00:38:46,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:46,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:46,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:46,495 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 00:38:46,496 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 00:38:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:46,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 00:38:46,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:38:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:46,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 00:38:46,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498826287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:38:46,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 00:38:46,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-16 00:38:46,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828861865] [2024-11-16 00:38:46,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:38:46,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 00:38:46,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:46,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 00:38:46,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-16 00:38:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:46,876 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:46,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 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 00:38:46,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:46,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:46,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:38:47,085 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 00:38:47,269 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 00:38:47,269 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:47,269 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:47,269 INFO L132 ounterexampleChecker]: Examining path program with hash -1709983925, occurence #1 [2024-11-16 00:38:47,270 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:47,270 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:47,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:47,271 INFO L85 PathProgramCache]: Analyzing trace with hash 888531681, now seen corresponding path program 1 times [2024-11-16 00:38:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:47,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388318388] [2024-11-16 00:38:47,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:47,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:47,456 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 00:38:47,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:47,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388318388] [2024-11-16 00:38:47,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388318388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:38:47,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964971246] [2024-11-16 00:38:47,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:47,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:47,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:47,460 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 00:38:47,461 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 00:38:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:47,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 00:38:47,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:38:47,716 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 00:38:47,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 00:38:47,848 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 00:38:47,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964971246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 00:38:47,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 00:38:47,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-16 00:38:47,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827587313] [2024-11-16 00:38:47,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 00:38:47,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 00:38:47,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:47,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 00:38:47,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-16 00:38:47,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:47,850 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:47,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 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 00:38:47,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:47,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:47,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:38:47,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:48,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:48,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:48,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:38:48,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:38:48,055 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 00:38:48,243 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 00:38:48,244 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:48,244 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:48,244 INFO L132 ounterexampleChecker]: Examining path program with hash -1076472937, occurence #1 [2024-11-16 00:38:48,244 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:48,244 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:48,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1835685638, now seen corresponding path program 2 times [2024-11-16 00:38:48,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:48,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516247891] [2024-11-16 00:38:48,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:48,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:48,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 00:38:48,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:48,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516247891] [2024-11-16 00:38:48,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516247891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:38:48,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255471977] [2024-11-16 00:38:48,437 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 00:38:48,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:48,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:48,440 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 00:38:48,441 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 00:38:48,523 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 00:38:48,523 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 00:38:48,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 00:38:48,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:38:48,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:48,905 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 00:38:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:49,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255471977] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 00:38:49,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 00:38:49,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 29 [2024-11-16 00:38:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405130609] [2024-11-16 00:38:49,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 00:38:49,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 00:38:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:49,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 00:38:49,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=701, Unknown=0, NotChecked=0, Total=812 [2024-11-16 00:38:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:49,423 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:49,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 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 00:38:49,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:49,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:49,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:38:49,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:38:49,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 00:38:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 00:38:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 00:38:50,617 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 00:38:50,804 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 00:38:50,805 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:50,805 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:50,805 INFO L132 ounterexampleChecker]: Examining path program with hash -695635885, occurence #1 [2024-11-16 00:38:50,805 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:50,805 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:50,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:50,806 INFO L85 PathProgramCache]: Analyzing trace with hash -272119469, now seen corresponding path program 3 times [2024-11-16 00:38:50,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:50,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025939020] [2024-11-16 00:38:50,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:50,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:51,001 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 00:38:51,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:51,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025939020] [2024-11-16 00:38:51,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025939020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:38:51,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372055939] [2024-11-16 00:38:51,002 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 00:38:51,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:51,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:51,004 INFO L229 MonitoredProcess]: Starting monitored process 6 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 00:38:51,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 00:38:51,072 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-16 00:38:51,073 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 00:38:51,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 00:38:51,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:38:51,289 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 00:38:51,289 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 00:38:51,611 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 00:38:51,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372055939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 00:38:51,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 00:38:51,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 14] total 26 [2024-11-16 00:38:51,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622609145] [2024-11-16 00:38:51,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 00:38:51,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-16 00:38:51,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:51,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-16 00:38:51,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2024-11-16 00:38:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:51,616 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:51,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 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 00:38:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-16 00:38:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-16 00:38:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-11-16 00:38:51,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 00:38:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 00:38:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 00:38:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 00:38:52,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 00:38:52,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:52,681 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:52,681 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:52,681 INFO L132 ounterexampleChecker]: Examining path program with hash -1758391535, occurence #1 [2024-11-16 00:38:52,681 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:52,681 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:52,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:52,682 INFO L85 PathProgramCache]: Analyzing trace with hash 484002195, now seen corresponding path program 1 times [2024-11-16 00:38:52,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:52,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552051943] [2024-11-16 00:38:52,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:52,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 00:38:52,698 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 00:38:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 00:38:52,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 00:38:52,730 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-16 00:38:52,731 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 00:38:52,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 00:38:52,737 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-16 00:38:52,738 INFO L320 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork0 was UNSAFE (1/3) [2024-11-16 00:38:52,786 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 00:38:52,786 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 00:38:52,807 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 00:38:52,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:38:52 BasicIcfg [2024-11-16 00:38:52,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 00:38:52,809 INFO L158 Benchmark]: Toolchain (without parser) took 8642.45ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 71.9MB in the beginning and 60.7MB in the end (delta: 11.2MB). Peak memory consumption was 58.0MB. Max. memory is 8.0GB. [2024-11-16 00:38:52,809 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:38:52,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.05ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 51.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-16 00:38:52,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.64ms. Allocated memory is still 100.7MB. Free memory was 51.7MB in the beginning and 49.9MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-16 00:38:52,810 INFO L158 Benchmark]: Boogie Preprocessor took 33.16ms. Allocated memory is still 100.7MB. Free memory was 49.9MB in the beginning and 48.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:38:52,810 INFO L158 Benchmark]: RCFGBuilder took 321.73ms. Allocated memory is still 100.7MB. Free memory was 48.9MB in the beginning and 36.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-16 00:38:52,811 INFO L158 Benchmark]: TraceAbstraction took 7805.14ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 35.9MB in the beginning and 60.7MB in the end (delta: -24.9MB). Peak memory consumption was 24.4MB. Max. memory is 8.0GB. [2024-11-16 00:38:52,812 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 100.7MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 433.05ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 51.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.64ms. Allocated memory is still 100.7MB. Free memory was 51.7MB in the beginning and 49.9MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.16ms. Allocated memory is still 100.7MB. Free memory was 49.9MB in the beginning and 48.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 321.73ms. Allocated memory is still 100.7MB. Free memory was 48.9MB in the beginning and 36.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 7805.14ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 35.9MB in the beginning and 60.7MB in the end (delta: -24.9MB). Peak memory consumption was 24.4MB. 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: 17452, independent: 16150, independent conditional: 14422, independent unconditional: 1728, dependent: 1302, dependent conditional: 1294, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16164, independent: 16150, independent conditional: 14422, independent unconditional: 1728, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 16164, independent: 16150, independent conditional: 14422, independent unconditional: 1728, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16191, independent: 16150, independent conditional: 14422, independent unconditional: 1728, dependent: 41, dependent conditional: 33, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16191, independent: 16150, independent conditional: 0, independent unconditional: 16150, dependent: 41, dependent conditional: 27, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16191, independent: 16150, independent conditional: 0, independent unconditional: 16150, dependent: 41, dependent conditional: 27, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1640, independent: 1617, independent conditional: 0, independent unconditional: 1617, dependent: 23, dependent conditional: 15, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1640, independent: 1616, independent conditional: 0, independent unconditional: 1616, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 24, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 23, dependent conditional: 15, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 24, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 23, dependent conditional: 15, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 203, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 139, dependent conditional: 53, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 16191, independent: 14533, independent conditional: 0, independent unconditional: 14533, dependent: 18, dependent conditional: 12, dependent unconditional: 6, unknown: 1640, unknown conditional: 15, unknown unconditional: 1625] , Statistics on independence cache: Total cache size (in pairs): 1640, Positive cache size: 1617, Positive conditional cache size: 0, Positive unconditional cache size: 1617, Negative cache size: 23, Negative conditional cache size: 15, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14428, Maximal queried relation: 5, Independence queries for same thread: 1288, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 522, Number of trivial persistent sets: 464, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1736, independent: 1728, independent conditional: 0, independent unconditional: 1728, 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: 17452, independent: 16150, independent conditional: 14422, independent unconditional: 1728, dependent: 1302, dependent conditional: 1294, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16164, independent: 16150, independent conditional: 14422, independent unconditional: 1728, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 16164, independent: 16150, independent conditional: 14422, independent unconditional: 1728, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16191, independent: 16150, independent conditional: 14422, independent unconditional: 1728, dependent: 41, dependent conditional: 33, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16191, independent: 16150, independent conditional: 0, independent unconditional: 16150, dependent: 41, dependent conditional: 27, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16191, independent: 16150, independent conditional: 0, independent unconditional: 16150, dependent: 41, dependent conditional: 27, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1640, independent: 1617, independent conditional: 0, independent unconditional: 1617, dependent: 23, dependent conditional: 15, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1640, independent: 1616, independent conditional: 0, independent unconditional: 1616, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 24, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 23, dependent conditional: 15, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 24, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 23, dependent conditional: 15, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 203, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 139, dependent conditional: 53, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 16191, independent: 14533, independent conditional: 0, independent unconditional: 14533, dependent: 18, dependent conditional: 12, dependent unconditional: 6, unknown: 1640, unknown conditional: 15, unknown unconditional: 1625] , Statistics on independence cache: Total cache size (in pairs): 1640, Positive cache size: 1617, Positive conditional cache size: 0, Positive unconditional cache size: 1617, Negative cache size: 23, Negative conditional cache size: 15, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14428, Maximal queried relation: 5, Independence queries for same thread: 1288 - 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 = 1 [L776] CALL 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1) [L750] COND FALSE 0 !(!cond) VAL [\old(cond)=1, _N=1, cond=1, limit=0] [L776] RET 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1) [L777] 0 pthread_t t1, t2; VAL [_N=1, limit=0] [L778] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [_N=1, limit=0, t1=-1] [L757] 1 int i, bound; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=0] [L758] 1 int lim = _N; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, lim=1, limit=0] [L779] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [_N=1, limit=0, t1=-1, t2=0] [L766] 2 int i, bound; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=0] [L767] 2 int lim = _N + 1; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, lim=2, limit=0] [L768] 2 limit = lim VAL [\old(arg)={0:0}, _N=1, arg={0:0}, lim=2, limit=2] [L759] 1 limit = lim VAL [\old(arg)={0:0}, _N=1, arg={0:0}, lim=1, limit=1] [L760] 1 bound = limit VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, lim=1, limit=1] [L761] 1 i = 0 VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=0, lim=1, limit=1] [L769] 2 bound = limit VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, lim=2, limit=1] [L770] 2 i = 0 VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=0, lim=2, limit=1] [L761] COND TRUE 1 i < bound VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=0, lim=1, limit=1] [L761] 1 i++ VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=1, limit=1] [L770] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=0, lim=2, limit=1] [L770] 2 i++ VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=2, limit=1] [L761] COND FALSE 1 !(i < bound) VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=1, limit=1] [L762] CALL 1 __VERIFIER_assert(i == lim) [L753] COND FALSE 1 !(!expression) VAL [\old(expression)=1, _N=1, expression=1, limit=1] [L762] RET 1 __VERIFIER_assert(i == lim) [L763] 1 return 0; VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=1, limit=1] [L780] FCALL, JOIN 1 pthread_join(t1, 0) VAL [_N=1, limit=1, t1=-1, t2=0] [L770] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=2, limit=1] [L771] CALL 2 __VERIFIER_assert(i == lim) [L753] COND TRUE 2 !expression VAL [\old(expression)=0, _N=1, expression=0, limit=1] [L753] 2 reach_error() VAL [\old(expression)=0, _N=1, expression=0, limit=1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 133 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 2.9s, 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: 86, 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, 3.2s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 821 ConstructedInterpolants, 0 QuantifiedInterpolants, 3245 SizeOfPredicates, 34 NumberOfNonLiveVariables, 511 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 10/22 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: CheckTime: 0.0s, ConditionCalculationTime: 0.0s, CommutingCounterexamples: 0, ConditionCalculations: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0, QuantifiedConditions: 0, FalseConditions: 0 RESULT: Ultimate proved your program to be incorrect! [2024-11-16 00:38:52,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...