/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m [2024-05-03 07:25:48,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-03 07:25:48,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-03 07:25:48,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-03 07:25:48,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-03 07:25:48,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-03 07:25:48,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-03 07:25:48,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-03 07:25:48,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-03 07:25:48,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-03 07:25:48,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-03 07:25:48,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-03 07:25:48,229 INFO L153 SettingsManager]: * Use SBE=true [2024-05-03 07:25:48,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-03 07:25:48,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-03 07:25:48,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-03 07:25:48,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-03 07:25:48,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-03 07:25:48,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-03 07:25:48,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-03 07:25:48,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-03 07:25:48,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-03 07:25:48,234 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-03 07:25:48,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-03 07:25:48,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-03 07:25:48,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-03 07:25:48,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-03 07:25:48,237 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-03 07:25:48,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-03 07:25:48,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 07:25:48,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-03 07:25:48,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-03 07:25:48,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-03 07:25:48,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-03 07:25:48,239 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-03 07:25:48,239 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-03 07:25:48,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-03 07:25:48,240 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-03 07:25:48,240 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-03 07:25:48,240 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-03 07:25:48,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-03 07:25:48,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-03 07:25:48,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-03 07:25:48,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-03 07:25:48,477 INFO L274 PluginConnector]: CDTParser initialized [2024-05-03 07:25:48,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-05-03 07:25:49,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-03 07:25:49,730 INFO L384 CDTParser]: Found 1 translation units. [2024-05-03 07:25:49,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-05-03 07:25:49,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/145e30be2/1b113c14dd0f444491cee4dfee218da1/FLAGe82141ee6 [2024-05-03 07:25:49,829 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/145e30be2/1b113c14dd0f444491cee4dfee218da1 [2024-05-03 07:25:49,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-03 07:25:49,832 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-03 07:25:49,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-03 07:25:49,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-03 07:25:49,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-03 07:25:49,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 07:25:49" (1/1) ... [2024-05-03 07:25:49,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c377ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:49, skipping insertion in model container [2024-05-03 07:25:49,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 07:25:49" (1/1) ... [2024-05-03 07:25:49,889 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-03 07:25:50,251 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2024-05-03 07:25:50,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 07:25:50,307 INFO L202 MainTranslator]: Completed pre-run [2024-05-03 07:25:50,353 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2024-05-03 07:25:50,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 07:25:50,415 INFO L206 MainTranslator]: Completed translation [2024-05-03 07:25:50,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50 WrapperNode [2024-05-03 07:25:50,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-03 07:25:50,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-03 07:25:50,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-03 07:25:50,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-03 07:25:50,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,469 INFO L138 Inliner]: procedures = 378, calls = 82, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 266 [2024-05-03 07:25:50,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-03 07:25:50,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-03 07:25:50,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-03 07:25:50,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-03 07:25:50,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,485 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-03 07:25:50,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-03 07:25:50,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-03 07:25:50,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-03 07:25:50,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (1/1) ... [2024-05-03 07:25:50,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 07:25:50,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:25:50,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-03 07:25:50,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-03 07:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-03 07:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-05-03 07:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-03 07:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-05-03 07:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-03 07:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-03 07:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-03 07:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-03 07:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-03 07:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-03 07:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-05-03 07:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-03 07:25:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-03 07:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-03 07:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-03 07:25:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-03 07:25:50,585 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-03 07:25:50,695 INFO L241 CfgBuilder]: Building ICFG [2024-05-03 07:25:50,697 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-03 07:25:50,998 INFO L282 CfgBuilder]: Performing block encoding [2024-05-03 07:25:51,028 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-03 07:25:51,028 INFO L309 CfgBuilder]: Removed 23 assume(true) statements. [2024-05-03 07:25:51,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 07:25:51 BoogieIcfgContainer [2024-05-03 07:25:51,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-03 07:25:51,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-03 07:25:51,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-03 07:25:51,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-03 07:25:51,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 07:25:49" (1/3) ... [2024-05-03 07:25:51,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f24ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 07:25:51, skipping insertion in model container [2024-05-03 07:25:51,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 07:25:50" (2/3) ... [2024-05-03 07:25:51,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f24ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 07:25:51, skipping insertion in model container [2024-05-03 07:25:51,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 07:25:51" (3/3) ... [2024-05-03 07:25:51,042 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2024-05-03 07:25:51,049 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-03 07:25:51,056 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-03 07:25:51,057 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-05-03 07:25:51,057 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-03 07:25:51,134 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-03 07:25:51,181 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:25:51,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 07:25:51,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:25:51,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 07:25:51,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-03 07:25:51,243 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 07:25:51,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-03 07:25:51,257 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f145fe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:25:51,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 07:26:00,337 INFO L78 Accepts]: Start accepts. Automaton has currently 1406 states, but on-demand construction may add more states Word has length 260 [2024-05-03 07:26:00,338 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 07:26:00,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 07:26:00,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 07:26:00,342 INFO L85 PathProgramCache]: Analyzing trace with hash -2112503432, now seen corresponding path program 1 times [2024-05-03 07:26:00,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 07:26:00,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754410650] [2024-05-03 07:26:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:26:00,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 07:26:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 07:26:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-05-03 07:26:01,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 07:26:01,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754410650] [2024-05-03 07:26:01,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754410650] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 07:26:01,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156402614] [2024-05-03 07:26:01,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:26:01,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 07:26:01,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:26:01,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 07:26:01,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-03 07:26:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 07:26:01,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 1 conjunts are in the unsatisfiable core [2024-05-03 07:26:01,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 07:26:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-05-03 07:26:01,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-03 07:26:01,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156402614] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 07:26:01,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-03 07:26:01,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-05-03 07:26:01,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586552142] [2024-05-03 07:26:01,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 07:26:01,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-03 07:26:01,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 07:26:01,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-03 07:26:01,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-03 07:26:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:26:01,473 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 07:26:01,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 07:26:01,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:26:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:26:03,821 INFO L78 Accepts]: Start accepts. Automaton has currently 1603 states, but on-demand construction may add more states Word has length 423 [2024-05-03 07:26:03,825 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 07:26:03,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-03 07:26:04,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-05-03 07:26:04,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 07:26:04,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 07:26:04,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1796816657, now seen corresponding path program 1 times [2024-05-03 07:26:04,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 07:26:04,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230485024] [2024-05-03 07:26:04,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:26:04,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 07:26:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 07:26:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-05-03 07:26:04,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 07:26:04,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230485024] [2024-05-03 07:26:04,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230485024] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 07:26:04,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907734486] [2024-05-03 07:26:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:26:04,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 07:26:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:26:04,427 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 07:26:04,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-03 07:26:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 07:26:04,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-03 07:26:04,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 07:26:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-05-03 07:26:04,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 07:26:04,828 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-05-03 07:26:04,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907734486] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 07:26:04,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 07:26:04,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-05-03 07:26:04,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830910380] [2024-05-03 07:26:04,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 07:26:04,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-05-03 07:26:04,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 07:26:04,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-05-03 07:26:04,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-05-03 07:26:04,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:26:04,834 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 07:26:04,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.5) internal successors, (205), 10 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 07:26:04,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:26:04,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:26:11,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:26:11,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 07:26:11,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-03 07:26:11,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-03 07:26:11,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 07:26:11,957 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-05-03 07:26:11,958 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/4) [2024-05-03 07:26:11,964 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:26:11,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 07:26:11,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:26:11,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 07:26:11,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-05-03 07:26:11,987 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 07:26:11,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2024-05-03 07:26:11,988 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f145fe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:26:11,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 07:26:11,991 INFO L78 Accepts]: Start accepts. Automaton has currently 71 states, but on-demand construction may add more states Word has length 61 [2024-05-03 07:26:11,991 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 07:26:11,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 07:26:11,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 07:26:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash 660966646, now seen corresponding path program 1 times [2024-05-03 07:26:11,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 07:26:11,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262988861] [2024-05-03 07:26:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:26:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 07:26:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-03 07:26:12,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-03 07:26:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-03 07:26:12,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-03 07:26:12,095 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-05-03 07:26:12,095 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-05-03 07:26:12,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-03 07:26:12,097 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-05-03 07:26:12,097 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (2/4) [2024-05-03 07:26:12,097 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-03 07:26:12,097 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-05-03 07:26:12,133 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-03 07:26:12,137 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:26:12,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 07:26:12,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:26:12,139 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 07:26:12,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-05-03 07:26:12,142 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 07:26:12,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-03 07:26:12,143 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f145fe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:26:12,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 07:27:07,686 INFO L78 Accepts]: Start accepts. Automaton has currently 78341 states, but on-demand construction may add more states Word has length 349 [2024-05-03 07:27:07,687 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 07:27:07,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 07:27:07,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 07:27:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash 851673652, now seen corresponding path program 1 times [2024-05-03 07:27:07,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 07:27:07,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019863366] [2024-05-03 07:27:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:27:07,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 07:27:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 07:27:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2024-05-03 07:27:07,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 07:27:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019863366] [2024-05-03 07:27:07,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019863366] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 07:27:07,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 07:27:07,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-03 07:27:07,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831042289] [2024-05-03 07:27:07,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 07:27:07,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-03 07:27:07,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 07:27:07,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-03 07:27:07,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-03 07:27:07,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:27:07,888 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 07:27:07,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 07:27:07,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:27:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:27:11,900 INFO L78 Accepts]: Start accepts. Automaton has currently 74392 states, but on-demand construction may add more states Word has length 622 [2024-05-03 07:27:11,902 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 07:27:11,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-03 07:27:11,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 07:27:11,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 07:27:11,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1815366326, now seen corresponding path program 1 times [2024-05-03 07:27:11,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 07:27:11,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838750961] [2024-05-03 07:27:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:27:11,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 07:27:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 07:27:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2260 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2250 trivial. 0 not checked. [2024-05-03 07:27:12,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 07:27:12,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838750961] [2024-05-03 07:27:12,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838750961] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 07:27:12,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429244295] [2024-05-03 07:27:12,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:27:12,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 07:27:12,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:27:12,385 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 07:27:12,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-03 07:27:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 07:27:12,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 1952 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-03 07:27:12,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 07:27:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2260 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2250 trivial. 0 not checked. [2024-05-03 07:27:12,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 07:27:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2260 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2250 trivial. 0 not checked. [2024-05-03 07:27:12,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429244295] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 07:27:12,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 07:27:12,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-05-03 07:27:12,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339110375] [2024-05-03 07:27:12,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 07:27:12,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-05-03 07:27:12,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 07:27:12,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-05-03 07:27:12,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-05-03 07:27:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:27:12,966 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 07:27:12,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 07:27:12,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:27:12,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:27:35,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 07:27:35,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 07:27:35,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-03 07:27:35,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-03 07:27:36,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 07:27:36,054 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-05-03 07:27:36,054 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/5) [2024-05-03 07:27:36,057 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:27:36,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 07:27:36,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:27:36,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 07:27:36,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-05-03 07:27:36,095 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 07:27:36,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2024-05-03 07:27:36,096 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f145fe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:27:36,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 07:27:36,098 INFO L78 Accepts]: Start accepts. Automaton has currently 96 states, but on-demand construction may add more states Word has length 69 [2024-05-03 07:27:36,098 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 07:27:36,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 07:27:36,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 07:27:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1513666787, now seen corresponding path program 1 times [2024-05-03 07:27:36,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 07:27:36,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762832340] [2024-05-03 07:27:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 07:27:36,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 07:27:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-03 07:27:36,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-03 07:27:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-03 07:27:36,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-03 07:27:36,135 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-05-03 07:27:36,135 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-05-03 07:27:36,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-03 07:27:36,136 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-05-03 07:27:36,136 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (2/5) [2024-05-03 07:27:36,136 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-03 07:27:36,137 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-05-03 07:27:36,171 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-05-03 07:27:36,174 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:27:36,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 07:27:36,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 07:27:36,190 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 07:27:36,206 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 07:27:36,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-03 07:27:36,207 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f145fe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 07:27:36,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 07:27:36,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process