/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 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/pthread-wmm/mix041_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 14:34:23,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 14:34:23,832 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-14 14:34:23,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 14:34:23,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 14:34:23,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 14:34:23,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 14:34:23,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 14:34:23,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 14:34:23,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 14:34:23,860 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 14:34:23,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 14:34:23,860 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 14:34:23,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 14:34:23,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 14:34:23,860 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 14:34:23,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 14:34:23,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 14:34:23,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 14:34:23,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 14:34:23,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 14:34:23,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 14:34:23,862 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 14:34:23,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 14:34:23,862 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 14:34:23,862 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 14:34:23,862 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 14:34:23,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 14:34:23,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 14:34:23,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 14:34:23,864 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 14:34:23,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 14:34:23,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 14:34:23,864 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 14:34:23,864 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 14:34:23,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 14:34:24,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 14:34:24,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 14:34:24,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 14:34:24,091 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 14:34:24,091 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 14:34:24,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix041_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-04-14 14:34:25,392 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f4dcb14/47a84af3a7d149b091b624dc50067e72/FLAG5e272c1d9 [2025-04-14 14:34:25,623 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 14:34:25,624 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix041_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-04-14 14:34:25,637 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f4dcb14/47a84af3a7d149b091b624dc50067e72/FLAG5e272c1d9 [2025-04-14 14:34:26,444 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f4dcb14/47a84af3a7d149b091b624dc50067e72 [2025-04-14 14:34:26,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 14:34:26,447 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 14:34:26,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 14:34:26,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 14:34:26,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 14:34:26,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:26,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@647543c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26, skipping insertion in model container [2025-04-14 14:34:26,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:26,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 14:34:26,635 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix041_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2025-04-14 14:34:26,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 14:34:26,846 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 14:34:26,869 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix041_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2025-04-14 14:34:26,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 14:34:26,948 INFO L204 MainTranslator]: Completed translation [2025-04-14 14:34:26,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26 WrapperNode [2025-04-14 14:34:26,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 14:34:26,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 14:34:26,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 14:34:26,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 14:34:26,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:26,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:26,996 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 130 [2025-04-14 14:34:26,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 14:34:26,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 14:34:26,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 14:34:26,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 14:34:27,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,010 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 14:34:27,022 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 14:34:27,022 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 14:34:27,022 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 14:34:27,023 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (1/1) ... [2025-04-14 14:34:27,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 14:34:27,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 14:34:27,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 14:34:27,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 14:34:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 14:34:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 14:34:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-14 14:34:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-14 14:34:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-14 14:34:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-14 14:34:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 14:34:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 14:34:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 14:34:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 14:34:27,076 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 14:34:27,171 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 14:34:27,172 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 14:34:27,379 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 14:34:27,379 INFO L307 CfgBuilder]: Performing block encoding [2025-04-14 14:34:27,561 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 14:34:27,561 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 14:34:27,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 02:34:27 BoogieIcfgContainer [2025-04-14 14:34:27,561 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 14:34:27,563 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 14:34:27,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 14:34:27,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 14:34:27,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 02:34:26" (1/3) ... [2025-04-14 14:34:27,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca7881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 02:34:27, skipping insertion in model container [2025-04-14 14:34:27,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 02:34:26" (2/3) ... [2025-04-14 14:34:27,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca7881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 02:34:27, skipping insertion in model container [2025-04-14 14:34:27,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 02:34:27" (3/3) ... [2025-04-14 14:34:27,570 INFO L128 eAbstractionObserver]: Analyzing ICFG mix041_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-04-14 14:34:27,579 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 14:34:27,581 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix041_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i that has 3 procedures, 32 locations, 30 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-14 14:34:27,581 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 14:34:27,616 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-14 14:34:27,647 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 14:34:27,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 14:34:27,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 14:34:27,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-14 14:34:27,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-14 14:34:27,712 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 14:34:27,723 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork0 ======== [2025-04-14 14:34:27,728 INFO L340 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;@41902e15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 14:34:27,728 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-14 14:34:28,391 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 14:34:28,392 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 14:34:28,392 INFO L139 ounterexampleChecker]: Examining path program with hash -1611158650, occurence #1 [2025-04-14 14:34:28,392 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 14:34:28,392 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 14:34:28,395 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 14:34:28,395 INFO L85 PathProgramCache]: Analyzing trace with hash 757571260, now seen corresponding path program 1 times [2025-04-14 14:34:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 14:34:28,401 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619273888] [2025-04-14 14:34:28,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 14:34:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 14:34:28,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-14 14:34:28,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-14 14:34:28,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 14:34:28,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 14:34:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 14:34:28,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 14:34:28,801 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619273888] [2025-04-14 14:34:28,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619273888] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 14:34:28,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 14:34:28,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-14 14:34:28,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695052926] [2025-04-14 14:34:28,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 14:34:28,806 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 14:34:28,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 14:34:28,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 14:34:28,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 14:34:28,820 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 14:34:28,821 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 14:34:28,822 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2025-04-14 14:34:28,823 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 14:34:52,645 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 14:34:52,647 INFO L790 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-14 14:34:52,648 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 14:34:52,654 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-14 14:34:52,655 INFO L320 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork0 was SAFE (1/2) [2025-04-14 14:34:52,657 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 14:34:52,658 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 14:34:52,658 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 14:34:52,658 INFO L340 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;@41902e15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 14:34:52,658 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-14 14:34:52,663 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 14:34:52,663 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 14:34:52,665 INFO L139 ounterexampleChecker]: Examining path program with hash -178377771, occurence #1 [2025-04-14 14:34:52,665 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 14:34:52,665 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 14:34:52,665 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 14:34:52,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1553342242, now seen corresponding path program 1 times [2025-04-14 14:34:52,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 14:34:52,665 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558591664] [2025-04-14 14:34:52,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 14:34:52,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 14:34:52,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 14:34:52,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 14:34:52,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 14:34:52,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 14:34:52,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 14:34:52,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 14:34:52,934 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558591664] [2025-04-14 14:34:52,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558591664] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 14:34:52,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 14:34:52,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 14:34:52,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138353084] [2025-04-14 14:34:52,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 14:34:52,935 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 14:34:52,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 14:34:52,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 14:34:52,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-14 14:34:52,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 14:34:52,935 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 14:34:52,935 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-04-14 14:34:52,935 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 14:35:01,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 14:35:01,326 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 14:35:01,326 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 14:35:01,326 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 14:35:01,326 INFO L139 ounterexampleChecker]: Examining path program with hash 850273546, occurence #1 [2025-04-14 14:35:01,326 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 14:35:01,326 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 14:35:01,326 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 14:35:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1757212806, now seen corresponding path program 1 times [2025-04-14 14:35:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 14:35:01,326 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150701647] [2025-04-14 14:35:01,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 14:35:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 14:35:01,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-14 14:35:01,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-14 14:35:01,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 14:35:01,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 14:35:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 14:35:01,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 14:35:01,530 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150701647] [2025-04-14 14:35:01,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150701647] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 14:35:01,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 14:35:01,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 14:35:01,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617404992] [2025-04-14 14:35:01,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 14:35:01,531 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 14:35:01,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 14:35:01,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 14:35:01,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 14:35:01,531 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 14:35:01,532 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 14:35:01,532 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-04-14 14:35:01,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 14:35:01,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 14:35:01,610 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 14:35:01,610 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 14:35:01,611 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 14:35:01,611 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 14:35:01,611 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 14:35:01,611 INFO L139 ounterexampleChecker]: Examining path program with hash -1514201768, occurence #1 [2025-04-14 14:35:01,611 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 14:35:01,611 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 14:35:01,611 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 14:35:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash 62288222, now seen corresponding path program 1 times [2025-04-14 14:35:01,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 14:35:01,611 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234615128] [2025-04-14 14:35:01,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 14:35:01,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 14:35:01,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 14:35:01,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 14:35:01,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 14:35:01,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 14:35:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 14:35:02,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 14:35:02,730 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234615128] [2025-04-14 14:35:02,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234615128] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 14:35:02,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 14:35:02,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-14 14:35:02,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981132662] [2025-04-14 14:35:02,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 14:35:02,730 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-14 14:35:02,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 14:35:02,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-14 14:35:02,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-04-14 14:35:02,731 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 14:35:02,731 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 14:35:02,731 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 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) [2025-04-14 14:35:02,731 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 14:35:02,731 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 14:35:02,731 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 14:35:05,933 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 14:35:05,933 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 14:35:05,934 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 14:35:05,934 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 14:35:05,934 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 14:35:05,934 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 14:35:05,934 INFO L139 ounterexampleChecker]: Examining path program with hash 1938064613, occurence #1 [2025-04-14 14:35:05,934 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 14:35:05,934 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 14:35:05,935 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 14:35:05,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2005215632, now seen corresponding path program 2 times [2025-04-14 14:35:05,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 14:35:05,935 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103487347] [2025-04-14 14:35:05,935 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 14:35:05,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 14:35:05,941 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 1 equivalence classes. [2025-04-14 14:35:05,982 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 14:35:05,982 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 14:35:05,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-14 14:35:05,982 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-14 14:35:05,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 14:35:06,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 14:35:06,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 14:35:06,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-14 14:35:06,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-14 14:35:06,042 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-14 14:35:06,042 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-14 14:35:06,042 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-14 14:35:06,042 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-14 14:35:06,042 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-14 14:35:06,045 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-04-14 14:35:06,045 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/2) [2025-04-14 14:35:06,121 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 14:35:06,121 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 14:35:06,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-14 14:35:06,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 02:35:06 BasicIcfg [2025-04-14 14:35:06,143 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 14:35:06,143 INFO L158 Benchmark]: Toolchain (without parser) took 39696.41ms. Allocated memory was 142.6MB in the beginning and 775.9MB in the end (delta: 633.3MB). Free memory was 97.6MB in the beginning and 568.5MB in the end (delta: -470.9MB). Peak memory consumption was 162.8MB. Max. memory is 8.0GB. [2025-04-14 14:35:06,143 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 167.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 14:35:06,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.43ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 71.7MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-14 14:35:06,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.72ms. Allocated memory is still 142.6MB. Free memory was 71.7MB in the beginning and 69.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 14:35:06,144 INFO L158 Benchmark]: Boogie Preprocessor took 24.77ms. Allocated memory is still 142.6MB. Free memory was 69.2MB in the beginning and 67.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 14:35:06,144 INFO L158 Benchmark]: IcfgBuilder took 539.26ms. Allocated memory is still 142.6MB. Free memory was 67.5MB in the beginning and 90.1MB in the end (delta: -22.6MB). Peak memory consumption was 53.3MB. Max. memory is 8.0GB. [2025-04-14 14:35:06,144 INFO L158 Benchmark]: TraceAbstraction took 38579.73ms. Allocated memory was 142.6MB in the beginning and 775.9MB in the end (delta: 633.3MB). Free memory was 90.1MB in the beginning and 568.5MB in the end (delta: -478.4MB). Peak memory consumption was 155.7MB. Max. memory is 8.0GB. [2025-04-14 14:35:06,145 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 167.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 500.43ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 71.7MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.72ms. Allocated memory is still 142.6MB. Free memory was 71.7MB in the beginning and 69.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.77ms. Allocated memory is still 142.6MB. Free memory was 69.2MB in the beginning and 67.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 539.26ms. Allocated memory is still 142.6MB. Free memory was 67.5MB in the beginning and 90.1MB in the end (delta: -22.6MB). Peak memory consumption was 53.3MB. Max. memory is 8.0GB. * TraceAbstraction took 38579.73ms. Allocated memory was 142.6MB in the beginning and 775.9MB in the end (delta: 633.3MB). Free memory was 90.1MB in the beginning and 568.5MB in the end (delta: -478.4MB). Peak memory consumption was 155.7MB. 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: 598, independent: 547, independent conditional: 233, independent unconditional: 314, dependent: 51, dependent conditional: 31, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 596, independent: 547, independent conditional: 233, independent unconditional: 314, dependent: 49, dependent conditional: 29, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 596, independent: 547, independent conditional: 233, independent unconditional: 314, dependent: 49, dependent conditional: 29, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 650, independent: 547, independent conditional: 233, independent unconditional: 314, dependent: 103, dependent conditional: 83, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 650, independent: 547, independent conditional: 25, independent unconditional: 522, dependent: 103, dependent conditional: 28, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 650, independent: 547, independent conditional: 25, independent unconditional: 522, dependent: 103, dependent conditional: 28, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 347, independent: 318, independent conditional: 4, independent unconditional: 314, dependent: 29, dependent conditional: 6, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 347, independent: 312, independent conditional: 0, independent unconditional: 312, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 35, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 29, dependent conditional: 6, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 29, dependent conditional: 6, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24366, independent: 1843, independent conditional: 1813, independent unconditional: 29, dependent: 22523, dependent conditional: 5592, dependent unconditional: 16931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 650, independent: 229, independent conditional: 21, independent unconditional: 208, dependent: 74, dependent conditional: 22, dependent unconditional: 52, unknown: 347, unknown conditional: 10, unknown unconditional: 337] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 318, Positive conditional cache size: 4, Positive unconditional cache size: 314, Negative cache size: 29, Negative conditional cache size: 6, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 263, Maximal queried relation: 1, Independence queries for same thread: 2, Persistent sets #1 benchmarks: Persistent set computation time: 16.2s, Number of persistent set computation: 65, Number of trivial persistent sets: 47, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 334, independent: 314, independent conditional: 0, independent unconditional: 314, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 598, independent: 547, independent conditional: 233, independent unconditional: 314, dependent: 51, dependent conditional: 31, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 596, independent: 547, independent conditional: 233, independent unconditional: 314, dependent: 49, dependent conditional: 29, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 596, independent: 547, independent conditional: 233, independent unconditional: 314, dependent: 49, dependent conditional: 29, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 650, independent: 547, independent conditional: 233, independent unconditional: 314, dependent: 103, dependent conditional: 83, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 650, independent: 547, independent conditional: 25, independent unconditional: 522, dependent: 103, dependent conditional: 28, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 650, independent: 547, independent conditional: 25, independent unconditional: 522, dependent: 103, dependent conditional: 28, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 347, independent: 318, independent conditional: 4, independent unconditional: 314, dependent: 29, dependent conditional: 6, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 347, independent: 312, independent conditional: 0, independent unconditional: 312, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 35, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 29, dependent conditional: 6, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 29, dependent conditional: 6, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24366, independent: 1843, independent conditional: 1813, independent unconditional: 29, dependent: 22523, dependent conditional: 5592, dependent unconditional: 16931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 650, independent: 229, independent conditional: 21, independent unconditional: 208, dependent: 74, dependent conditional: 22, dependent unconditional: 52, unknown: 347, unknown conditional: 10, unknown unconditional: 337] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 318, Positive conditional cache size: 4, Positive unconditional cache size: 314, Negative cache size: 29, Negative conditional cache size: 6, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 263, Maximal queried relation: 1, Independence queries for same thread: 2 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 579, independent: 541, independent conditional: 252, independent unconditional: 289, dependent: 38, dependent conditional: 15, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 575, independent: 541, independent conditional: 252, independent unconditional: 289, dependent: 34, dependent conditional: 11, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 575, independent: 541, independent conditional: 252, independent unconditional: 289, dependent: 34, dependent conditional: 11, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 600, independent: 541, independent conditional: 252, independent unconditional: 289, dependent: 59, dependent conditional: 36, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 600, independent: 541, independent conditional: 6, independent unconditional: 535, dependent: 59, dependent conditional: 8, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 600, independent: 541, independent conditional: 6, independent unconditional: 535, dependent: 59, dependent conditional: 8, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 98, independent: 86, independent conditional: 4, independent unconditional: 82, dependent: 12, dependent conditional: 4, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 98, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 5, independent conditional: 4, independent unconditional: 1, dependent: 12, dependent conditional: 4, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 5, independent conditional: 4, independent unconditional: 1, dependent: 12, dependent conditional: 4, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11256, independent: 927, independent conditional: 925, independent unconditional: 1, dependent: 10329, dependent conditional: 5663, dependent unconditional: 4667, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 600, independent: 455, independent conditional: 2, independent unconditional: 453, dependent: 47, dependent conditional: 4, dependent unconditional: 43, unknown: 98, unknown conditional: 8, unknown unconditional: 90] , Statistics on independence cache: Total cache size (in pairs): 435, Positive cache size: 400, Positive conditional cache size: 4, Positive unconditional cache size: 396, Negative cache size: 35, Negative conditional cache size: 4, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 274, Maximal queried relation: 2, Independence queries for same thread: 4, Persistent sets #1 benchmarks: Persistent set computation time: 4.7s, Number of persistent set computation: 92, Number of trivial persistent sets: 43, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 312, independent: 289, independent conditional: 0, independent unconditional: 289, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 579, independent: 541, independent conditional: 252, independent unconditional: 289, dependent: 38, dependent conditional: 15, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 575, independent: 541, independent conditional: 252, independent unconditional: 289, dependent: 34, dependent conditional: 11, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 575, independent: 541, independent conditional: 252, independent unconditional: 289, dependent: 34, dependent conditional: 11, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 600, independent: 541, independent conditional: 252, independent unconditional: 289, dependent: 59, dependent conditional: 36, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 600, independent: 541, independent conditional: 6, independent unconditional: 535, dependent: 59, dependent conditional: 8, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 600, independent: 541, independent conditional: 6, independent unconditional: 535, dependent: 59, dependent conditional: 8, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 98, independent: 86, independent conditional: 4, independent unconditional: 82, dependent: 12, dependent conditional: 4, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 98, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 5, independent conditional: 4, independent unconditional: 1, dependent: 12, dependent conditional: 4, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 5, independent conditional: 4, independent unconditional: 1, dependent: 12, dependent conditional: 4, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11256, independent: 927, independent conditional: 925, independent unconditional: 1, dependent: 10329, dependent conditional: 5663, dependent unconditional: 4667, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 600, independent: 455, independent conditional: 2, independent unconditional: 453, dependent: 47, dependent conditional: 4, dependent unconditional: 43, unknown: 98, unknown conditional: 8, unknown unconditional: 90] , Statistics on independence cache: Total cache size (in pairs): 435, Positive cache size: 400, Positive conditional cache size: 4, Positive unconditional cache size: 396, Negative cache size: 35, Negative conditional cache size: 4, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 274, Maximal queried relation: 2, Independence queries for same thread: 4 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L734] 0 int z = 0; [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L802] 0 pthread_t t1091; [L803] FCALL, FORK 0 pthread_create(&t1091, ((void *)0), P0, ((void *)0)) VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1091=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L804] 0 pthread_t t1092; [L805] FCALL, FORK 0 pthread_create(&t1092, ((void *)0), P1, ((void *)0)) VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1091=-1, t1092=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L760] 2 x$w_buff1 = x$w_buff0 [L761] 2 x$w_buff0 = 2 [L762] 2 x$w_buff1_used = x$w_buff0_used [L763] 2 x$w_buff0_used = (_Bool)1 [L764] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L764] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L765] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L766] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L767] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L768] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L771] 2 y = 1 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1, z=0] [L774] 2 __unbuffered_p1_EAX = y VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1, z=0] [L777] 2 __unbuffered_p1_EBX = z VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1, z=0] [L740] 1 z = 1 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1, z=1] [L743] 1 x = 1 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=1, z=1] [L780] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L781] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L782] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L783] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L784] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] [L789] 2 return 0; [L746] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L748] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L749] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L750] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] [L807] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1091=-1, t1092=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] [L809] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L809] RET 0 assume_abort_if_not(main$tmp_guard0) [L811] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L812] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L813] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L814] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L815] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1091=-1, t1092=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] [L818] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L819] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L820] 0 x$flush_delayed = weak$$choice2 [L821] 0 x$mem_tmp = x [L822] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L823] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L824] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L825] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L826] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L828] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L829] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L830] 0 x = x$flush_delayed ? x$mem_tmp : x [L831] 0 x$flush_delayed = (_Bool)0 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1091=-1, t1092=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] [L833] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\at(arg, Pre)={0:0}, \at(expression, Pre)=0, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] [L18] 0 reach_error() VAL [\at(arg, Pre)={0:0}, \at(expression, Pre)=0, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1, z=1] - UnprovableResult [Line: 803]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 805]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: P1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 51 locations, 49 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 25.0s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 24.5s, 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: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 51 locations, 49 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 11.7s, 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: 17, 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, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 650 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2025-04-14 14:35:06,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...