/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/unwind1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.conditional-comm-aee53f6 [2024-11-16 00:38:14,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 00:38:14,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2024-11-16 00:38:14,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 00:38:14,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 00:38:14,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 00:38:14,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 00:38:14,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 00:38:14,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 00:38:14,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 00:38:14,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 00:38:14,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 00:38:14,943 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 00:38:14,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 00:38:14,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 00:38:14,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 00:38:14,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 00:38:14,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 00:38:14,944 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-16 00:38:14,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 00:38:14,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 00:38:14,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 00:38:14,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 00:38:14,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 00:38:14,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 00:38:14,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 00:38:14,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 00:38:14,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-16 00:38:14,947 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-16 00:38:14,947 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-16 00:38:14,947 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 00:38:15,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 00:38:15,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 00:38:15,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 00:38:15,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 00:38:15,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 00:38:15,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind1-1.i [2024-11-16 00:38:16,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 00:38:16,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 00:38:16,870 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-theta/unwind1-1.i [2024-11-16 00:38:16,888 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/7f02b1b8e/149b8a70791847c5b6a77383c8d57fb1/FLAGafac94284 [2024-11-16 00:38:16,904 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/7f02b1b8e/149b8a70791847c5b6a77383c8d57fb1 [2024-11-16 00:38:16,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 00:38:16,907 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-16 00:38:16,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 00:38:16,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 00:38:16,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 00:38:16,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:16" (1/1) ... [2024-11-16 00:38:16,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7967f059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:16, skipping insertion in model container [2024-11-16 00:38:16,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:16" (1/1) ... [2024-11-16 00:38:16,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 00:38:17,249 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/unwind1-1.i[33026,33039] [2024-11-16 00:38:17,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 00:38:17,273 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 00:38:17,310 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/unwind1-1.i[33026,33039] [2024-11-16 00:38:17,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 00:38:17,337 INFO L204 MainTranslator]: Completed translation [2024-11-16 00:38:17,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17 WrapperNode [2024-11-16 00:38:17,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 00:38:17,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 00:38:17,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 00:38:17,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 00:38:17,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,369 INFO L138 Inliner]: procedures = 169, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2024-11-16 00:38:17,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 00:38:17,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 00:38:17,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 00:38:17,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 00:38:17,377 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 00:38:17,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-16 00:38:17,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-16 00:38:17,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-16 00:38:17,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (1/1) ... [2024-11-16 00:38:17,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 00:38:17,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:17,419 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 00:38:17,421 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 00:38:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 00:38:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-16 00:38:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-16 00:38:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-16 00:38:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-16 00:38:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 00:38:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 00:38:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 00:38:17,439 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 00:38:17,543 INFO L238 CfgBuilder]: Building ICFG [2024-11-16 00:38:17,544 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 00:38:17,634 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 00:38:17,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-16 00:38:17,643 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 00:38:17,643 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-16 00:38:17,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:17 BoogieIcfgContainer [2024-11-16 00:38:17,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-16 00:38:17,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 00:38:17,646 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 00:38:17,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 00:38:17,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:38:16" (1/3) ... [2024-11-16 00:38:17,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8af894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:17, skipping insertion in model container [2024-11-16 00:38:17,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:17" (2/3) ... [2024-11-16 00:38:17,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8af894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:17, skipping insertion in model container [2024-11-16 00:38:17,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:17" (3/3) ... [2024-11-16 00:38:17,652 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-1.i [2024-11-16 00:38:17,664 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 00:38:17,666 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind1-1.i that has 3 procedures, 71 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-16 00:38:17,666 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 00:38:17,733 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 00:38:17,777 INFO L126 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 00:38:17,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-16 00:38:17,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:17,780 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 00:38:17,783 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 00:38:17,856 INFO L181 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-16 00:38:17,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork0 ======== [2024-11-16 00:38:17,877 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;@38022d00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 00:38:17,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 00:38:18,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:18,020 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:18,020 INFO L132 ounterexampleChecker]: Examining path program with hash 672105449, occurence #1 [2024-11-16 00:38:18,021 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:18,021 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:18,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:18,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1042050771, now seen corresponding path program 1 times [2024-11-16 00:38:18,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:18,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748774730] [2024-11-16 00:38:18,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:18,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:18,207 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 00:38:18,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:18,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748774730] [2024-11-16 00:38:18,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748774730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:38:18,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:38:18,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 00:38:18,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426465097] [2024-11-16 00:38:18,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:38:18,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 00:38:18,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:18,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 00:38:18,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 00:38:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:18,243 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:18,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 00:38:18,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:18,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:18,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 00:38:18,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:18,267 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:18,268 INFO L132 ounterexampleChecker]: Examining path program with hash -1814627631, occurence #1 [2024-11-16 00:38:18,268 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:18,268 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:18,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:18,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1315237952, now seen corresponding path program 1 times [2024-11-16 00:38:18,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:18,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105217410] [2024-11-16 00:38:18,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:18,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:18,559 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 00:38:18,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:18,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105217410] [2024-11-16 00:38:18,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105217410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:38:18,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:38:18,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 00:38:18,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034879257] [2024-11-16 00:38:18,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:38:18,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 00:38:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:18,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 00:38:18,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 00:38:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:18,563 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:18,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 00:38:18,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:18,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 00:38:18,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 00:38:18,662 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:18,662 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:18,662 INFO L132 ounterexampleChecker]: Examining path program with hash -939400087, occurence #1 [2024-11-16 00:38:18,662 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:18,662 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:18,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:18,663 INFO L85 PathProgramCache]: Analyzing trace with hash 386446821, now seen corresponding path program 1 times [2024-11-16 00:38:18,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:18,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971734040] [2024-11-16 00:38:18,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:18,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:18,942 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 00:38:18,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:18,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971734040] [2024-11-16 00:38:18,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971734040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:38:18,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198737396] [2024-11-16 00:38:18,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:18,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:18,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:18,946 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 00:38:18,948 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 00:38:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:19,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 00:38:19,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:38:19,269 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 00:38:19,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 00:38:19,420 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 00:38:19,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198737396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 00:38:19,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 00:38:19,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-16 00:38:19,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350986971] [2024-11-16 00:38:19,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 00:38:19,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 00:38:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:19,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 00:38:19,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-16 00:38:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:19,426 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:19,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 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 00:38:19,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:19,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-16 00:38:19,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 00:38:19,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:19,572 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 00:38:19,756 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 00:38:19,757 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:19,757 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:19,757 INFO L132 ounterexampleChecker]: Examining path program with hash -939400087, occurence #2 [2024-11-16 00:38:19,757 INFO L137 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-16 00:38:19,757 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-16 00:38:19,758 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,758 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-16 00:38:19,758 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,758 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-16 00:38:19,759 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,759 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-16 00:38:19,759 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,759 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-16 00:38:19,759 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,759 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-16 00:38:19,759 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,759 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-16 00:38:19,759 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,759 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-16 00:38:19,759 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,760 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-16 00:38:19,772 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-16 00:38:19,772 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-11-16 00:38:19,773 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,773 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-16 00:38:19,773 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,773 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-16 00:38:19,773 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-16 00:38:19,773 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-16 00:38:19,773 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,773 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-16 00:38:19,773 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,773 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2024-11-16 00:38:19,773 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 00:38:19,773 WARN L199 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-16 00:38:19,774 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:19,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:19,774 INFO L85 PathProgramCache]: Analyzing trace with hash 591184266, now seen corresponding path program 2 times [2024-11-16 00:38:19,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:19,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626162618] [2024-11-16 00:38:19,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:19,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 00:38:19,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:19,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626162618] [2024-11-16 00:38:19,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626162618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 00:38:19,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373675990] [2024-11-16 00:38:19,969 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 00:38:19,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 00:38:19,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 00:38:19,972 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 00:38:19,974 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 00:38:20,046 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 00:38:20,046 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 00:38:20,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 00:38:20,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 00:38:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 00:38:20,179 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 00:38:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 00:38:20,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373675990] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 00:38:20,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 00:38:20,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 15 [2024-11-16 00:38:20,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099291708] [2024-11-16 00:38:20,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 00:38:20,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 00:38:20,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:20,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 00:38:20,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-16 00:38:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:20,329 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:20,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 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 00:38:20,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:20,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-16 00:38:20,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:20,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 00:38:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 00:38:20,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 00:38:20,815 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 00:38:21,000 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 00:38:21,001 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:21,001 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:21,001 INFO L132 ounterexampleChecker]: Examining path program with hash -859644758, occurence #1 [2024-11-16 00:38:21,001 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:21,001 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:21,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash 481148698, now seen corresponding path program 3 times [2024-11-16 00:38:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:21,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692875354] [2024-11-16 00:38:21,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:21,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 00:38:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 00:38:21,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 00:38:21,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692875354] [2024-11-16 00:38:21,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692875354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 00:38:21,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 00:38:21,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 00:38:21,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204705071] [2024-11-16 00:38:21,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 00:38:21,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 00:38:21,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 00:38:21,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 00:38:21,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 00:38:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:21,106 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 00:38:21,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 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 00:38:21,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-16 00:38:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-16 00:38:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-16 00:38:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:21,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 00:38:21,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 00:38:21,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 00:38:21,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-16 00:38:21,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 00:38:21,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 00:38:21,400 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 00:38:21,400 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 00:38:21,400 INFO L132 ounterexampleChecker]: Examining path program with hash 496555550, occurence #1 [2024-11-16 00:38:21,400 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 00:38:21,400 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 00:38:21,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 00:38:21,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1043170731, now seen corresponding path program 1 times [2024-11-16 00:38:21,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 00:38:21,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141082613] [2024-11-16 00:38:21,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 00:38:21,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 00:38:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 00:38:21,411 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 00:38:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 00:38:21,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 00:38:21,445 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-16 00:38:21,446 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 00:38:21,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 00:38:21,456 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-11-16 00:38:21,457 INFO L320 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork0 was UNSAFE (1/2) [2024-11-16 00:38:21,499 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 00:38:21,499 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 00:38:21,515 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 00:38:21,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:38:21 BasicIcfg [2024-11-16 00:38:21,516 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 00:38:21,517 INFO L158 Benchmark]: Toolchain (without parser) took 4609.49ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 70.4MB in the beginning and 83.1MB in the end (delta: -12.7MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. [2024-11-16 00:38:21,517 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:38:21,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.98ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 50.0MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2024-11-16 00:38:21,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.58ms. Allocated memory is still 100.7MB. Free memory was 50.0MB in the beginning and 48.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:38:21,517 INFO L158 Benchmark]: Boogie Preprocessor took 16.87ms. Allocated memory is still 100.7MB. Free memory was 48.1MB in the beginning and 47.2MB in the end (delta: 997.5kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:38:21,518 INFO L158 Benchmark]: RCFGBuilder took 254.83ms. Allocated memory is still 100.7MB. Free memory was 47.2MB in the beginning and 35.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-16 00:38:21,518 INFO L158 Benchmark]: TraceAbstraction took 3870.18ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 35.3MB in the beginning and 83.1MB in the end (delta: -47.8MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 00:38:21,519 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 427.98ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 50.0MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.58ms. Allocated memory is still 100.7MB. Free memory was 50.0MB in the beginning and 48.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 16.87ms. Allocated memory is still 100.7MB. Free memory was 48.1MB in the beginning and 47.2MB in the end (delta: 997.5kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 254.83ms. Allocated memory is still 100.7MB. Free memory was 47.2MB in the beginning and 35.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3870.18ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 35.3MB in the beginning and 83.1MB in the end (delta: -47.8MB). There was no memory consumed. 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: 1494, independent: 1395, independent conditional: 596, independent unconditional: 799, dependent: 99, dependent conditional: 94, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1402, independent: 1395, independent conditional: 596, independent unconditional: 799, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1402, independent: 1395, independent conditional: 596, independent unconditional: 799, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1409, independent: 1395, independent conditional: 596, independent unconditional: 799, dependent: 14, dependent conditional: 9, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1409, independent: 1395, independent conditional: 0, independent unconditional: 1395, dependent: 14, dependent conditional: 7, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1409, independent: 1395, independent conditional: 0, independent unconditional: 1395, dependent: 14, dependent conditional: 7, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 791, independent: 782, independent conditional: 0, independent unconditional: 782, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 791, independent: 780, independent conditional: 0, independent unconditional: 780, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 11, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 141, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 62, dependent conditional: 18, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 1409, independent: 613, independent conditional: 0, independent unconditional: 613, dependent: 5, dependent conditional: 3, dependent unconditional: 2, unknown: 791, unknown conditional: 4, unknown unconditional: 787] , Statistics on independence cache: Total cache size (in pairs): 791, Positive cache size: 782, Positive conditional cache size: 0, Positive unconditional cache size: 782, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 598, Maximal queried relation: 4, Independence queries for same thread: 92, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 196, Number of trivial persistent sets: 171, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 804, independent: 799, independent conditional: 0, independent unconditional: 799, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1494, independent: 1395, independent conditional: 596, independent unconditional: 799, dependent: 99, dependent conditional: 94, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1402, independent: 1395, independent conditional: 596, independent unconditional: 799, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1402, independent: 1395, independent conditional: 596, independent unconditional: 799, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1409, independent: 1395, independent conditional: 596, independent unconditional: 799, dependent: 14, dependent conditional: 9, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1409, independent: 1395, independent conditional: 0, independent unconditional: 1395, dependent: 14, dependent conditional: 7, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1409, independent: 1395, independent conditional: 0, independent unconditional: 1395, dependent: 14, dependent conditional: 7, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 791, independent: 782, independent conditional: 0, independent unconditional: 782, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 791, independent: 780, independent conditional: 0, independent unconditional: 780, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 11, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 141, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 62, dependent conditional: 18, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 1409, independent: 613, independent conditional: 0, independent unconditional: 613, dependent: 5, dependent conditional: 3, dependent unconditional: 2, unknown: 791, unknown conditional: 4, unknown unconditional: 787] , Statistics on independence cache: Total cache size (in pairs): 791, Positive cache size: 782, Positive conditional cache size: 0, Positive unconditional cache size: 782, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 598, Maximal queried relation: 4, Independence queries for same thread: 92 - 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] [L772] 0 _N = 1 [L773] 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] [L773] RET 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1) [L774] 0 pthread_t t1, t2; VAL [_N=1, limit=0] [L775] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [\old(arg)={0:0}, _N=1, limit=0, t1=-1] [L757] COND FALSE 1 !(__VERIFIER_nondet_int()) VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=0] [L760] 1 limit = _N + 1 VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=2] [L762] 1 return 0; VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, limit=2] [L776] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, limit=2, t1=-1, t2=0] [L765] 2 int i, bound; VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, limit=2] [L766] 2 bound = limit VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, limit=2] [L767] 2 i = 0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=0, limit=2] [L777] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, limit=2, t1=-1, t2=0] [L767] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=0, limit=2] [L767] 2 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=1, limit=2] [L767] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=1, limit=2] [L767] 2 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=2, limit=2] [L767] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=2, limit=2] [L768] CALL 2 __VERIFIER_assert(i <= _N) [L753] COND TRUE 2 !expression VAL [\old(arg)={0:0}, \old(expression)=0, \result={0:0}, _N=1, arg={0:0}, expression=0, limit=2] [L753] 2 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, \result={0:0}, _N=1, arg={0:0}, expression=0, limit=2] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 1.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 449 NumberOfCodeBlocks, 449 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 495 ConstructedInterpolants, 0 QuantifiedInterpolants, 1246 SizeOfPredicates, 13 NumberOfNonLiveVariables, 234 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 13/27 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: 13, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0, QuantifiedConditions: 0, FalseConditions: 0 RESULT: Ultimate proved your program to be incorrect! [2024-11-16 00:38:21,541 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...