/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSmt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/pthread-deagle/floating_read-15.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-11 01:46:58,493 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-01-11 01:46:58,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-11 01:46:58,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-11 01:46:58,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-11 01:46:58,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSmt.epf [2023-01-11 01:46:58,589 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-11 01:46:58,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-11 01:46:58,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-11 01:46:58,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-11 01:46:58,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-11 01:46:58,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-11 01:46:58,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-11 01:46:58,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-11 01:46:58,592 INFO L138 SettingsManager]: * Use SBE=true [2023-01-11 01:46:58,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-11 01:46:58,592 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-11 01:46:58,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-11 01:46:58,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-11 01:46:58,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-11 01:46:58,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-11 01:46:58,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-11 01:46:58,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-11 01:46:58,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-11 01:46:58,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-11 01:46:58,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-11 01:46:58,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-11 01:46:58,594 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-11 01:46:58,594 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-01-11 01:46:58,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-11 01:46:58,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-11 01:46:58,595 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2023-01-11 01:46:58,595 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-11 01:46:58,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2023-01-11 01:46:58,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-11 01:46:58,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-11 01:46:58,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-11 01:46:58,816 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-11 01:46:58,816 INFO L275 PluginConnector]: CDTParser initialized [2023-01-11 01:46:58,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/floating_read-15.i [2023-01-11 01:47:00,065 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-11 01:47:00,281 INFO L351 CDTParser]: Found 1 translation units. [2023-01-11 01:47:00,281 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-15.i [2023-01-11 01:47:00,290 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04cb0ecdc/f090bc759a2745149f6b9e1bc160bf5e/FLAGa4c4a202c [2023-01-11 01:47:00,300 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04cb0ecdc/f090bc759a2745149f6b9e1bc160bf5e [2023-01-11 01:47:00,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-11 01:47:00,302 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-11 01:47:00,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-11 01:47:00,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-11 01:47:00,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-11 01:47:00,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49eff1d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00, skipping insertion in model container [2023-01-11 01:47:00,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-11 01:47:00,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-11 01:47:00,631 WARN L1558 CHandler]: Possible shadowing of function thread [2023-01-11 01:47:00,640 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-15.i[31197,31210] [2023-01-11 01:47:00,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-11 01:47:00,648 INFO L203 MainTranslator]: Completed pre-run [2023-01-11 01:47:00,679 WARN L1558 CHandler]: Possible shadowing of function thread [2023-01-11 01:47:00,688 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-15.i[31197,31210] [2023-01-11 01:47:00,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-11 01:47:00,717 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-11 01:47:00,717 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-11 01:47:00,722 INFO L208 MainTranslator]: Completed translation [2023-01-11 01:47:00,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00 WrapperNode [2023-01-11 01:47:00,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-11 01:47:00,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-11 01:47:00,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-11 01:47:00,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-11 01:47:00,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,768 INFO L138 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-01-11 01:47:00,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-11 01:47:00,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-11 01:47:00,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-11 01:47:00,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-11 01:47:00,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,804 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-11 01:47:00,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-11 01:47:00,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-11 01:47:00,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-11 01:47:00,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (1/1) ... [2023-01-11 01:47:00,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-11 01:47:00,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:00,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:00,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-11 01:47:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-11 01:47:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-11 01:47:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-11 01:47:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-11 01:47:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-11 01:47:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-11 01:47:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-11 01:47:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-01-11 01:47:00,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-01-11 01:47:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-11 01:47:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-11 01:47:00,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-11 01:47:00,878 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-11 01:47:01,037 INFO L236 CfgBuilder]: Building ICFG [2023-01-11 01:47:01,042 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-11 01:47:01,187 INFO L277 CfgBuilder]: Performing block encoding [2023-01-11 01:47:01,210 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-11 01:47:01,210 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-11 01:47:01,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:47:01 BoogieIcfgContainer [2023-01-11 01:47:01,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-11 01:47:01,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-11 01:47:01,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-11 01:47:01,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-11 01:47:01,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:47:00" (1/3) ... [2023-01-11 01:47:01,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abbed5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:47:01, skipping insertion in model container [2023-01-11 01:47:01,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:47:00" (2/3) ... [2023-01-11 01:47:01,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abbed5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:47:01, skipping insertion in model container [2023-01-11 01:47:01,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:47:01" (3/3) ... [2023-01-11 01:47:01,217 INFO L112 eAbstractionObserver]: Analyzing ICFG floating_read-15.i [2023-01-11 01:47:01,224 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-11 01:47:01,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-11 01:47:01,230 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-11 01:47:01,230 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-11 01:47:01,271 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-11 01:47:01,303 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:01,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:01,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:01,309 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) [2023-01-11 01:47:01,310 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 [2023-01-11 01:47:01,337 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:01,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:01,345 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:01,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:01,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:01,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash 652638827, now seen corresponding path program 1 times [2023-01-11 01:47:01,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:01,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790902783] [2023-01-11 01:47:01,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:01,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:01,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:01,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790902783] [2023-01-11 01:47:01,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790902783] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:01,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:01,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-11 01:47:01,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510676404] [2023-01-11 01:47:01,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:01,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 01:47:01,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:01,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 01:47:01,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 01:47:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:01,606 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:01,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-01-11 01:47:01,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:01,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:01,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-11 01:47:01,627 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:01,628 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE was SAFE (1/6) [2023-01-11 01:47:01,641 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:01,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:01,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:01,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:01,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2023-01-11 01:47:01,688 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:01,688 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:01,689 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:01,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:01,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:01,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:01,792 INFO L85 PathProgramCache]: Analyzing trace with hash -379575972, now seen corresponding path program 1 times [2023-01-11 01:47:01,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:01,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251194981] [2023-01-11 01:47:01,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:01,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:01,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:01,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251194981] [2023-01-11 01:47:01,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251194981] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:01,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286847266] [2023-01-11 01:47:01,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:01,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:01,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:02,001 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:02,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-11 01:47:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:02,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2023-01-11 01:47:02,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-11 01:47:02,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-11 01:47:02,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286847266] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:02,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-11 01:47:02,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-01-11 01:47:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629941923] [2023-01-11 01:47:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:02,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 01:47:02,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:02,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 01:47:02,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-11 01:47:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:02,111 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:02,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-01-11 01:47:02,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:02,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:02,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:02,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:02,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:02,360 INFO L85 PathProgramCache]: Analyzing trace with hash 702590133, now seen corresponding path program 1 times [2023-01-11 01:47:02,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:02,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806690304] [2023-01-11 01:47:02,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:02,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:02,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:02,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806690304] [2023-01-11 01:47:02,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806690304] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:02,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452026803] [2023-01-11 01:47:02,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:02,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:02,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:02,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:02,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-11 01:47:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:02,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-01-11 01:47:02,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:02,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:02,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452026803] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:02,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:02,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-01-11 01:47:02,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713064241] [2023-01-11 01:47:02,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:02,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-11 01:47:02,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:02,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-11 01:47:02,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-01-11 01:47:02,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:02,600 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:02,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-11 01:47:02,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:02,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:02,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:02,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-11 01:47:02,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:02,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:02,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:02,879 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 01:47:02,879 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE was SAFE (2/6) [2023-01-11 01:47:02,882 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:02,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:02,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:02,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:02,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-01-11 01:47:02,891 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:02,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:02,892 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:02,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:02,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:02,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:02,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1584412052, now seen corresponding path program 1 times [2023-01-11 01:47:02,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:02,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856574457] [2023-01-11 01:47:02,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:02,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:02,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:02,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856574457] [2023-01-11 01:47:02,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856574457] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:02,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401956622] [2023-01-11 01:47:02,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:02,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:02,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:03,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:03,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-11 01:47:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:03,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2023-01-11 01:47:03,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:03,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:03,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401956622] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:03,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:03,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-01-11 01:47:03,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018516056] [2023-01-11 01:47:03,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:03,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-11 01:47:03,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:03,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-11 01:47:03,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-01-11 01:47:03,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:03,144 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:03,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 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) [2023-01-11 01:47:03,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:03,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-11 01:47:03,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:03,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:03,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:03,428 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:03,429 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE was SAFE (3/6) [2023-01-11 01:47:03,431 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:03,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:03,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:03,432 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:03,469 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:03,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-01-11 01:47:03,470 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:03,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:03,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2023-01-11 01:47:03,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-11 01:47:03,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash 299266116, now seen corresponding path program 1 times [2023-01-11 01:47:03,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:03,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780963964] [2023-01-11 01:47:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:03,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-11 01:47:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:03,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-11 01:47:03,585 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-11 01:47:03,585 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-11 01:47:03,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-11 01:47:03,589 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:03,589 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (4/6) [2023-01-11 01:47:03,589 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-11 01:47:03,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-11 01:47:03,629 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-11 01:47:03,631 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:03,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:03,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:03,634 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:03,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2023-01-11 01:47:03,652 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:03,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:03,652 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:03,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:03,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash -945195669, now seen corresponding path program 1 times [2023-01-11 01:47:03,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:03,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537443484] [2023-01-11 01:47:03,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:03,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:03,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537443484] [2023-01-11 01:47:03,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537443484] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:03,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:03,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-11 01:47:03,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660857340] [2023-01-11 01:47:03,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:03,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 01:47:03,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:03,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 01:47:03,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 01:47:03,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:03,665 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:03,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-01-11 01:47:03,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:03,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:03,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:03,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-11 01:47:03,667 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:03,668 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE was SAFE (1/7) [2023-01-11 01:47:03,669 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:03,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:03,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:03,680 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:03,686 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:03,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:03,687 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:03,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:03,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2023-01-11 01:47:03,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:03,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:03,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1473021516, now seen corresponding path program 1 times [2023-01-11 01:47:03,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:03,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083306670] [2023-01-11 01:47:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:03,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-01-11 01:47:03,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:03,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083306670] [2023-01-11 01:47:03,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083306670] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:03,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:03,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 01:47:03,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796726142] [2023-01-11 01:47:03,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:03,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 01:47:03,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:03,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 01:47:03,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 01:47:03,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:03,797 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:03,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-01-11 01:47:03,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:03,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-11 01:47:03,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:03,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:03,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1104755456, now seen corresponding path program 1 times [2023-01-11 01:47:03,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:03,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873217113] [2023-01-11 01:47:03,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:03,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:03,928 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:03,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:03,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873217113] [2023-01-11 01:47:03,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873217113] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:03,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105668210] [2023-01-11 01:47:03,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:03,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:03,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:03,932 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:03,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-01-11 01:47:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:04,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-11 01:47:04,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:04,044 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:04,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:04,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105668210] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:04,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:04,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-01-11 01:47:04,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697382345] [2023-01-11 01:47:04,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:04,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-11 01:47:04,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:04,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-11 01:47:04,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-01-11 01:47:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:04,104 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:04,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 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) [2023-01-11 01:47:04,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:04,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:04,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-11 01:47:04,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:04,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:04,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-01-11 01:47:04,414 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 01:47:04,414 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE was SAFE (2/7) [2023-01-11 01:47:04,416 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:04,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:04,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:04,418 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:04,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2023-01-11 01:47:04,422 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:04,422 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:04,422 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:04,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:04,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:04,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:04,505 INFO L85 PathProgramCache]: Analyzing trace with hash 623470231, now seen corresponding path program 1 times [2023-01-11 01:47:04,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:04,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123862437] [2023-01-11 01:47:04,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:04,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:04,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:04,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123862437] [2023-01-11 01:47:04,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123862437] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:04,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223625017] [2023-01-11 01:47:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:04,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:04,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:04,671 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:04,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-01-11 01:47:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:04,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-11 01:47:04,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:04,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:04,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223625017] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:04,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:04,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-01-11 01:47:04,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368468706] [2023-01-11 01:47:04,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:04,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-11 01:47:04,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:04,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-11 01:47:04,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-01-11 01:47:04,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:04,815 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:04,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 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) [2023-01-11 01:47:04,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-11 01:47:04,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:04,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:05,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:05,131 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:05,132 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE was SAFE (3/7) [2023-01-11 01:47:05,133 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:05,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:05,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:05,134 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:05,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2023-01-11 01:47:05,139 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:05,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-01-11 01:47:05,140 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:05,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:05,170 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-11 01:47:05,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:05,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1765970790, now seen corresponding path program 1 times [2023-01-11 01:47:05,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:05,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648437583] [2023-01-11 01:47:05,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:05,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:05,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-11 01:47:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:05,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-11 01:47:05,188 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-11 01:47:05,188 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-11 01:47:05,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-11 01:47:05,189 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:05,189 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (4/7) [2023-01-11 01:47:05,189 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-11 01:47:05,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-11 01:47:05,199 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-11 01:47:05,200 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:05,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:05,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:05,219 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:05,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2023-01-11 01:47:05,233 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:05,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:05,234 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:05,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:05,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:05,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:05,235 INFO L85 PathProgramCache]: Analyzing trace with hash -375837333, now seen corresponding path program 1 times [2023-01-11 01:47:05,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:05,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219001582] [2023-01-11 01:47:05,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:05,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:05,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:05,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219001582] [2023-01-11 01:47:05,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219001582] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:05,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:05,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-11 01:47:05,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706358942] [2023-01-11 01:47:05,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:05,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 01:47:05,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:05,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 01:47:05,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 01:47:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:05,243 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:05,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-01-11 01:47:05,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:05,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:05,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-11 01:47:05,245 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:05,245 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE was SAFE (1/8) [2023-01-11 01:47:05,246 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:05,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:05,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:05,261 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:05,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2023-01-11 01:47:05,263 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:05,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:05,265 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:05,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:05,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:05,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:05,469 INFO L85 PathProgramCache]: Analyzing trace with hash -795615319, now seen corresponding path program 1 times [2023-01-11 01:47:05,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:05,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917064586] [2023-01-11 01:47:05,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:05,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:05,512 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-01-11 01:47:05,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:05,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917064586] [2023-01-11 01:47:05,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917064586] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:05,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:05,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 01:47:05,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515953881] [2023-01-11 01:47:05,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:05,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 01:47:05,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:05,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 01:47:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 01:47:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:05,513 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:05,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-01-11 01:47:05,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:05,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-11 01:47:05,559 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:05,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:05,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1750725935, now seen corresponding path program 1 times [2023-01-11 01:47:05,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:05,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729226379] [2023-01-11 01:47:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:05,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:05,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:05,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729226379] [2023-01-11 01:47:05,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729226379] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:05,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947520503] [2023-01-11 01:47:05,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:05,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:05,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:05,663 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:05,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-01-11 01:47:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:05,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-11 01:47:05,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:05,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:05,847 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:05,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947520503] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:05,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:05,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-01-11 01:47:05,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100054989] [2023-01-11 01:47:05,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:05,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-01-11 01:47:05,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:05,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-01-11 01:47:05,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-01-11 01:47:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:05,849 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:05,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.277777777777778) internal successors, (95), 18 states have internal predecessors, (95), 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) [2023-01-11 01:47:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:06,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-11 01:47:06,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:06,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:06,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-01-11 01:47:06,360 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 01:47:06,360 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE was SAFE (2/8) [2023-01-11 01:47:06,362 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:06,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:06,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:06,363 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:06,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2023-01-11 01:47:06,368 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:06,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:06,369 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:06,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:06,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:06,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:06,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1748626066, now seen corresponding path program 1 times [2023-01-11 01:47:06,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:06,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518560226] [2023-01-11 01:47:06,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:06,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:06,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:06,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518560226] [2023-01-11 01:47:06,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518560226] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:06,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226129988] [2023-01-11 01:47:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:06,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:06,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:06,667 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:06,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-01-11 01:47:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:06,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-11 01:47:06,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:06,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:06,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226129988] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:06,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:06,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-01-11 01:47:06,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164565999] [2023-01-11 01:47:06,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:06,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-01-11 01:47:06,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:06,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-01-11 01:47:06,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-01-11 01:47:06,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:06,885 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:06,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 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) [2023-01-11 01:47:06,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-11 01:47:07,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:07,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-01-11 01:47:07,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:07,315 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:07,315 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE was SAFE (3/8) [2023-01-11 01:47:07,316 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:07,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:07,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:07,317 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:07,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process [2023-01-11 01:47:07,333 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:07,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-01-11 01:47:07,333 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:07,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:07,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-11 01:47:07,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:07,394 INFO L85 PathProgramCache]: Analyzing trace with hash -82576963, now seen corresponding path program 1 times [2023-01-11 01:47:07,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:07,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692002931] [2023-01-11 01:47:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:07,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:07,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-11 01:47:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:07,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-11 01:47:07,425 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-11 01:47:07,425 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-11 01:47:07,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-11 01:47:07,426 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:07,426 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (4/8) [2023-01-11 01:47:07,426 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-11 01:47:07,426 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-11 01:47:07,439 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-11 01:47:07,440 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:07,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:07,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:07,459 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:07,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process [2023-01-11 01:47:07,462 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:07,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:07,463 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:07,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:07,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:07,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:07,466 INFO L85 PathProgramCache]: Analyzing trace with hash -306487189, now seen corresponding path program 1 times [2023-01-11 01:47:07,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723177070] [2023-01-11 01:47:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:07,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:07,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:07,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723177070] [2023-01-11 01:47:07,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723177070] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:07,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:07,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-11 01:47:07,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773906744] [2023-01-11 01:47:07,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:07,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 01:47:07,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:07,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 01:47:07,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 01:47:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:07,473 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:07,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-01-11 01:47:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:07,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:07,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:07,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-11 01:47:07,475 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:07,475 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE was SAFE (1/9) [2023-01-11 01:47:07,476 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:07,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:07,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:07,497 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:07,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2023-01-11 01:47:07,501 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:07,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:07,502 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:07,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:08,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:08,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:08,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1885257875, now seen corresponding path program 1 times [2023-01-11 01:47:08,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:08,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77369219] [2023-01-11 01:47:08,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:08,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-01-11 01:47:08,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:08,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77369219] [2023-01-11 01:47:08,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77369219] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:08,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:08,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 01:47:08,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604993817] [2023-01-11 01:47:08,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:08,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 01:47:08,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 01:47:08,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 01:47:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:08,347 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:08,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-01-11 01:47:08,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:08,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-11 01:47:08,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:08,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:08,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1567763202, now seen corresponding path program 1 times [2023-01-11 01:47:08,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:08,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566651467] [2023-01-11 01:47:08,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:08,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:08,640 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:08,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:08,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566651467] [2023-01-11 01:47:08,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566651467] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:08,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434735956] [2023-01-11 01:47:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:08,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:08,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:08,659 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:08,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-01-11 01:47:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:08,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-11 01:47:08,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:08,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:08,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434735956] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:08,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:08,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-01-11 01:47:08,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54199009] [2023-01-11 01:47:08,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:08,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-01-11 01:47:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-01-11 01:47:08,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2023-01-11 01:47:08,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:08,912 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:08,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.2272727272727275) internal successors, (115), 22 states have internal predecessors, (115), 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) [2023-01-11 01:47:08,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:08,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-01-11 01:47:10,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:10,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:10,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-01-11 01:47:10,737 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 01:47:10,737 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE was SAFE (2/9) [2023-01-11 01:47:10,739 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:10,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:10,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:10,751 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:10,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2023-01-11 01:47:10,756 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:10,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:10,757 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:10,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:12,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:12,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1520289851, now seen corresponding path program 1 times [2023-01-11 01:47:12,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:12,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920535247] [2023-01-11 01:47:12,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:12,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:12,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:12,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920535247] [2023-01-11 01:47:12,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920535247] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:12,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175328861] [2023-01-11 01:47:12,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:12,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:12,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:12,117 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:12,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-01-11 01:47:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:12,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-11 01:47:12,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:12,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:12,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175328861] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:12,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:12,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-01-11 01:47:12,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877441155] [2023-01-11 01:47:12,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:12,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-01-11 01:47:12,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:12,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-01-11 01:47:12,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2023-01-11 01:47:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:12,405 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:12,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.5) internal successors, (121), 22 states have internal predecessors, (121), 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) [2023-01-11 01:47:12,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-01-11 01:47:13,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:13,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-01-11 01:47:13,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:13,993 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:13,993 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE was SAFE (3/9) [2023-01-11 01:47:13,995 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:13,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:13,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:13,996 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:14,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (26)] Waiting until timeout for monitored process [2023-01-11 01:47:14,006 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:14,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-01-11 01:47:14,006 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:14,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:14,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-11 01:47:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash -743808371, now seen corresponding path program 1 times [2023-01-11 01:47:14,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:14,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402980687] [2023-01-11 01:47:14,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:14,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:14,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-11 01:47:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:14,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-11 01:47:14,096 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-11 01:47:14,096 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-11 01:47:14,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-11 01:47:14,097 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:14,097 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (4/9) [2023-01-11 01:47:14,097 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-11 01:47:14,097 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-11 01:47:14,116 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-01-11 01:47:14,117 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:14,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:14,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:14,127 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:14,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2023-01-11 01:47:14,131 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:14,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:14,131 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:14,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:14,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:14,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:14,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1325476757, now seen corresponding path program 1 times [2023-01-11 01:47:14,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:14,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803541340] [2023-01-11 01:47:14,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:14,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:14,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:14,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803541340] [2023-01-11 01:47:14,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803541340] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:14,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:14,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-11 01:47:14,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767943538] [2023-01-11 01:47:14,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:14,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 01:47:14,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 01:47:14,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 01:47:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:14,141 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:14,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-01-11 01:47:14,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:14,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:14,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-11 01:47:14,143 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:14,143 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE was SAFE (1/10) [2023-01-11 01:47:14,144 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:14,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:14,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:14,162 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:14,168 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:14,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:14,169 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:14,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:14,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (28)] Waiting until timeout for monitored process [2023-01-11 01:47:20,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:20,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:20,485 INFO L85 PathProgramCache]: Analyzing trace with hash 982858282, now seen corresponding path program 1 times [2023-01-11 01:47:20,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:20,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670704437] [2023-01-11 01:47:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:20,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-01-11 01:47:20,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:20,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670704437] [2023-01-11 01:47:20,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670704437] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:20,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:20,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 01:47:20,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758831226] [2023-01-11 01:47:20,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:20,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 01:47:20,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 01:47:20,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 01:47:20,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:20,518 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:20,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-01-11 01:47:20,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:21,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:21,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-11 01:47:21,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:21,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:21,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1541292289, now seen corresponding path program 1 times [2023-01-11 01:47:21,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:21,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406316952] [2023-01-11 01:47:21,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:21,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:21,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406316952] [2023-01-11 01:47:21,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406316952] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795176260] [2023-01-11 01:47:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:21,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:21,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:21,617 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:21,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-01-11 01:47:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:21,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-11 01:47:21,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:21,745 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:21,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:21,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795176260] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:21,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:21,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2023-01-11 01:47:21,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304647991] [2023-01-11 01:47:21,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:21,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-01-11 01:47:21,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:21,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-01-11 01:47:21,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2023-01-11 01:47:21,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:21,911 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:21,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-11 01:47:21,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:21,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 01:47:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-01-11 01:47:32,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:32,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:32,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:32,657 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 01:47:32,657 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE was SAFE (2/10) [2023-01-11 01:47:32,658 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:32,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:32,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:32,659 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:32,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2023-01-11 01:47:32,669 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:32,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:32,669 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:32,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:41,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:41,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash -394678408, now seen corresponding path program 1 times [2023-01-11 01:47:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:41,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776992978] [2023-01-11 01:47:41,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:41,432 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:41,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:41,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776992978] [2023-01-11 01:47:41,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776992978] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 01:47:41,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464463562] [2023-01-11 01:47:41,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:41,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 01:47:41,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:41,451 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-11 01:47:41,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-01-11 01:47:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:41,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-11 01:47:41,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 01:47:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:41,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 01:47:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:41,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464463562] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 01:47:41,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 01:47:41,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2023-01-11 01:47:41,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363461851] [2023-01-11 01:47:41,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 01:47:41,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-01-11 01:47:41,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:41,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-01-11 01:47:41,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2023-01-11 01:47:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:41,799 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:41,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.423076923076923) internal successors, (141), 26 states have internal predecessors, (141), 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) [2023-01-11 01:47:41,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:51,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-01-11 01:47:51,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:51,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-01-11 01:47:51,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-01-11 01:47:51,387 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:51,388 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE was SAFE (3/10) [2023-01-11 01:47:51,390 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:51,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:51,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:51,394 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:51,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (32)] Waiting until timeout for monitored process [2023-01-11 01:47:51,407 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:51,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-01-11 01:47:51,408 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:51,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:51,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-11 01:47:51,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:51,467 INFO L85 PathProgramCache]: Analyzing trace with hash -366415638, now seen corresponding path program 1 times [2023-01-11 01:47:51,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:51,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196354800] [2023-01-11 01:47:51,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:51,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:51,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-11 01:47:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-11 01:47:51,486 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-11 01:47:51,486 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-11 01:47:51,486 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-11 01:47:51,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-01-11 01:47:51,487 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:51,487 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (4/10) [2023-01-11 01:47:51,487 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-11 01:47:51,487 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-11 01:47:51,500 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-01-11 01:47:51,501 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:51,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:51,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:51,504 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:51,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (33)] Waiting until timeout for monitored process [2023-01-11 01:47:51,509 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:51,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:51,509 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:51,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 01:47:51,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE] === [2023-01-11 01:47:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 01:47:51,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2038824299, now seen corresponding path program 1 times [2023-01-11 01:47:51,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 01:47:51,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287508524] [2023-01-11 01:47:51,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 01:47:51,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 01:47:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 01:47:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 01:47:51,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 01:47:51,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287508524] [2023-01-11 01:47:51,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287508524] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 01:47:51,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 01:47:51,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-11 01:47:51,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338774411] [2023-01-11 01:47:51,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 01:47:51,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 01:47:51,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 01:47:51,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 01:47:51,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 01:47:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:51,517 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 01:47:51,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-01-11 01:47:51,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 01:47:51,518 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2023-01-11 01:47:51,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-01-11 01:47:51,519 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 01:47:51,519 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE was SAFE (1/11) [2023-01-11 01:47:51,520 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:51,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 01:47:51,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 01:47:51,523 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 01:47:51,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (34)] Waiting until timeout for monitored process [2023-01-11 01:47:51,527 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-11 01:47:51,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 01:47:51,527 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@140f343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 01:47:51,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.