/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 -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking SLEEP_SET -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-3774817-m [2024-04-04 04:50:25,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-04-04 04:50:25,889 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-04-04 04:50:25,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-04-04 04:50:25,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-04-04 04:50:25,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-04-04 04:50:25,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-04-04 04:50:25,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-04-04 04:50:25,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-04-04 04:50:25,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-04-04 04:50:25,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-04-04 04:50:25,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-04-04 04:50:25,909 INFO L153 SettingsManager]: * Use SBE=true [2024-04-04 04:50:25,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-04-04 04:50:25,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-04-04 04:50:25,909 INFO L153 SettingsManager]: * sizeof long=4 [2024-04-04 04:50:25,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-04-04 04:50:25,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-04-04 04:50:25,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-04-04 04:50:25,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-04-04 04:50:25,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-04-04 04:50:25,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-04-04 04:50:25,911 INFO L153 SettingsManager]: * sizeof long double=12 [2024-04-04 04:50:25,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-04-04 04:50:25,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-04-04 04:50:25,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-04-04 04:50:25,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-04-04 04:50:25,912 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-04-04 04:50:25,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-04-04 04:50:25,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-04 04:50:25,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-04-04 04:50:25,913 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-04-04 04:50:25,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-04-04 04:50:25,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-04-04 04:50:25,914 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-04-04 04:50:25,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-04-04 04:50:25,914 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-04-04 04:50:25,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-04-04 04:50:25,915 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-04-04 04:50:25,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> SLEEP_SET [2024-04-04 04:50:26,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-04-04 04:50:26,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-04-04 04:50:26,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-04-04 04:50:26,134 INFO L270 PluginConnector]: Initializing CDTParser... [2024-04-04 04:50:26,135 INFO L274 PluginConnector]: CDTParser initialized [2024-04-04 04:50:26,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2024-04-04 04:50:27,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-04-04 04:50:27,578 INFO L384 CDTParser]: Found 1 translation units. [2024-04-04 04:50:27,579 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2024-04-04 04:50:27,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/51ac9c5f9/ac2dc12512db49beb365d4ba3978a685/FLAG38141aeb9 [2024-04-04 04:50:27,614 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/51ac9c5f9/ac2dc12512db49beb365d4ba3978a685 [2024-04-04 04:50:27,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-04-04 04:50:27,619 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-04-04 04:50:27,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-04-04 04:50:27,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-04-04 04:50:27,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-04-04 04:50:27,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.04 04:50:27" (1/1) ... [2024-04-04 04:50:27,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@776b90ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:27, skipping insertion in model container [2024-04-04 04:50:27,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.04 04:50:27" (1/1) ... [2024-04-04 04:50:27,668 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-04-04 04:50:27,821 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i[945,958] [2024-04-04 04:50:27,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-04-04 04:50:27,970 INFO L202 MainTranslator]: Completed pre-run [2024-04-04 04:50:27,980 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i[945,958] [2024-04-04 04:50:28,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-04-04 04:50:28,043 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-04-04 04:50:28,043 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-04-04 04:50:28,049 INFO L206 MainTranslator]: Completed translation [2024-04-04 04:50:28,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28 WrapperNode [2024-04-04 04:50:28,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-04-04 04:50:28,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-04-04 04:50:28,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-04-04 04:50:28,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-04-04 04:50:28,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,099 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-04-04 04:50:28,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-04-04 04:50:28,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-04-04 04:50:28,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-04-04 04:50:28,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-04-04 04:50:28,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-04-04 04:50:28,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-04-04 04:50:28,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-04-04 04:50:28,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-04-04 04:50:28,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (1/1) ... [2024-04-04 04:50:28,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-04 04:50:28,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-04 04:50:28,170 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) [2024-04-04 04:50:28,189 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 [2024-04-04 04:50:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-04-04 04:50:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-04-04 04:50:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-04-04 04:50:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-04-04 04:50:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-04-04 04:50:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-04-04 04:50:28,210 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-04-04 04:50:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-04-04 04:50:28,210 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-04-04 04:50:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-04-04 04:50:28,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-04-04 04:50:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-04-04 04:50:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-04-04 04:50:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-04-04 04:50:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-04-04 04:50:28,213 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-04-04 04:50:28,336 INFO L241 CfgBuilder]: Building ICFG [2024-04-04 04:50:28,340 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-04-04 04:50:28,473 INFO L282 CfgBuilder]: Performing block encoding [2024-04-04 04:50:28,481 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-04-04 04:50:28,481 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-04-04 04:50:28,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.04 04:50:28 BoogieIcfgContainer [2024-04-04 04:50:28,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-04-04 04:50:28,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-04-04 04:50:28,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-04-04 04:50:28,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-04-04 04:50:28,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.04 04:50:27" (1/3) ... [2024-04-04 04:50:28,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b07943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.04 04:50:28, skipping insertion in model container [2024-04-04 04:50:28,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.04 04:50:28" (2/3) ... [2024-04-04 04:50:28,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b07943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.04 04:50:28, skipping insertion in model container [2024-04-04 04:50:28,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.04 04:50:28" (3/3) ... [2024-04-04 04:50:28,489 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2024-04-04 04:50:28,495 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-04-04 04:50:28,502 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-04-04 04:50:28,503 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-04-04 04:50:28,503 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-04-04 04:50:28,561 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-04-04 04:50:28,679 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-04-04 04:50:28,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-04-04 04:50:28,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-04 04:50:28,742 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) [2024-04-04 04:50:28,752 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 [2024-04-04 04:50:28,784 INFO L184 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-04-04 04:50:28,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-04 04:50:28,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-04-04 04:50:28,807 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;@1e3bcb27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=SLEEP_SET, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123 [2024-04-04 04:50:28,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-04-04 04:50:28,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-04 04:50:28,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-04 04:50:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash 206683882, now seen corresponding path program 1 times [2024-04-04 04:50:28,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-04 04:50:28,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056802234] [2024-04-04 04:50:28,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-04 04:50:28,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-04 04:50:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-04 04:50:29,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-04 04:50:29,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-04 04:50:29,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056802234] [2024-04-04 04:50:29,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056802234] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-04 04:50:29,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-04 04:50:29,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-04-04 04:50:29,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117752361] [2024-04-04 04:50:29,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-04 04:50:29,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-04-04 04:50:29,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-04 04:50:29,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-04-04 04:50:29,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-04-04 04:50:29,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,177 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-04 04:50:29,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2024-04-04 04:50:29,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-04-04 04:50:29,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-04 04:50:29,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-04 04:50:29,205 INFO L85 PathProgramCache]: Analyzing trace with hash -101471208, now seen corresponding path program 1 times [2024-04-04 04:50:29,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-04 04:50:29,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531918890] [2024-04-04 04:50:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-04 04:50:29,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-04 04:50:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-04 04:50:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-04 04:50:29,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-04 04:50:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531918890] [2024-04-04 04:50:29,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531918890] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-04 04:50:29,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-04 04:50:29,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-04-04 04:50:29,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940909769] [2024-04-04 04:50:29,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-04 04:50:29,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-04-04 04:50:29,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-04 04:50:29,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-04-04 04:50:29,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-04-04 04:50:29,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,582 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-04 04:50:29,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2024-04-04 04:50:29,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-04-04 04:50:29,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-04-04 04:50:29,761 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-04 04:50:29,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-04 04:50:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1836164096, now seen corresponding path program 1 times [2024-04-04 04:50:29,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-04 04:50:29,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17661164] [2024-04-04 04:50:29,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-04 04:50:29,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-04 04:50:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-04 04:50:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-04 04:50:29,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-04 04:50:29,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17661164] [2024-04-04 04:50:29,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17661164] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-04 04:50:29,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-04 04:50:29,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-04-04 04:50:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164691409] [2024-04-04 04:50:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-04 04:50:29,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-04-04 04:50:29,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-04 04:50:29,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-04-04 04:50:29,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-04-04 04:50:29,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,973 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-04 04:50:29,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2024-04-04 04:50:29,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:29,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-04-04 04:50:29,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-04-04 04:50:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-04-04 04:50:30,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-04-04 04:50:30,515 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-04 04:50:30,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-04 04:50:30,518 INFO L85 PathProgramCache]: Analyzing trace with hash -787058522, now seen corresponding path program 2 times [2024-04-04 04:50:30,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-04 04:50:30,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686347727] [2024-04-04 04:50:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-04 04:50:30,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-04 04:50:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-04 04:50:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-04 04:50:30,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-04 04:50:30,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686347727] [2024-04-04 04:50:30,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686347727] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-04 04:50:30,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-04 04:50:30,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-04-04 04:50:30,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718653918] [2024-04-04 04:50:30,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-04 04:50:30,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-04-04 04:50:30,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-04 04:50:30,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-04-04 04:50:30,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-04-04 04:50:30,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:30,780 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-04 04:50:30,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2024-04-04 04:50:30,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:30,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-04-04 04:50:30,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-04-04 04:50:30,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-04-04 04:50:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-04-04 04:50:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-04 04:50:31,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-04-04 04:50:31,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-04 04:50:31,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-04 04:50:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash -795578356, now seen corresponding path program 3 times [2024-04-04 04:50:31,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-04 04:50:31,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747891969] [2024-04-04 04:50:31,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-04 04:50:31,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-04 04:50:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-04 04:50:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-04 04:50:31,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-04 04:50:31,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747891969] [2024-04-04 04:50:31,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747891969] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-04 04:50:31,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-04 04:50:31,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-04-04 04:50:31,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622246111] [2024-04-04 04:50:31,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-04 04:50:31,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-04-04 04:50:31,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-04 04:50:31,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-04-04 04:50:31,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-04-04 04:50:31,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:31,553 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-04 04:50:31,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2024-04-04 04:50:31,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:31,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-04-04 04:50:31,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-04-04 04:50:31,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-04 04:50:31,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-04 04:50:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-04-04 04:50:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-04-04 04:50:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-04 04:50:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-04 04:50:32,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-04-04 04:50:32,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-04-04 04:50:32,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-04-04 04:50:32,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-04-04 04:50:32,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-04-04 04:50:32,249 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-04-04 04:50:32,251 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-04-04 04:50:32,251 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2024-04-04 04:50:32,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.04 04:50:32 BasicIcfg [2024-04-04 04:50:32,254 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-04-04 04:50:32,255 INFO L158 Benchmark]: Toolchain (without parser) took 4635.99ms. Allocated memory was 251.7MB in the beginning and 352.3MB in the end (delta: 100.7MB). Free memory was 176.4MB in the beginning and 216.3MB in the end (delta: -39.9MB). Peak memory consumption was 173.1MB. Max. memory is 8.0GB. [2024-04-04 04:50:32,255 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 251.7MB. Free memory is still 217.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-04-04 04:50:32,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.46ms. Allocated memory is still 251.7MB. Free memory was 176.1MB in the beginning and 155.4MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2024-04-04 04:50:32,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.16ms. Allocated memory is still 251.7MB. Free memory was 155.4MB in the beginning and 153.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-04-04 04:50:32,255 INFO L158 Benchmark]: Boogie Preprocessor took 31.87ms. Allocated memory is still 251.7MB. Free memory was 153.4MB in the beginning and 152.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-04-04 04:50:32,256 INFO L158 Benchmark]: RCFGBuilder took 350.28ms. Allocated memory is still 251.7MB. Free memory was 152.0MB in the beginning and 137.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-04-04 04:50:32,256 INFO L158 Benchmark]: TraceAbstraction took 3770.04ms. Allocated memory was 251.7MB in the beginning and 352.3MB in the end (delta: 100.7MB). Free memory was 136.6MB in the beginning and 216.3MB in the end (delta: -79.7MB). Peak memory consumption was 133.3MB. Max. memory is 8.0GB. [2024-04-04 04:50:32,257 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 251.7MB. Free memory is still 217.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 429.46ms. Allocated memory is still 251.7MB. Free memory was 176.1MB in the beginning and 155.4MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.16ms. Allocated memory is still 251.7MB. Free memory was 155.4MB in the beginning and 153.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.87ms. Allocated memory is still 251.7MB. Free memory was 153.4MB in the beginning and 152.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 350.28ms. Allocated memory is still 251.7MB. Free memory was 152.0MB in the beginning and 137.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3770.04ms. Allocated memory was 251.7MB in the beginning and 352.3MB in the end (delta: 100.7MB). Free memory was 136.6MB in the beginning and 216.3MB in the end (delta: -79.7MB). Peak memory consumption was 133.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 164808, independent: 163356, independent conditional: 163167, independent unconditional: 189, dependent: 1452, dependent conditional: 1447, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 164496, independent: 163356, independent conditional: 163167, independent unconditional: 189, dependent: 1140, dependent conditional: 1140, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 164496, independent: 163356, independent conditional: 163167, independent unconditional: 189, dependent: 1140, dependent conditional: 1140, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 164496, independent: 163356, independent conditional: 163167, independent unconditional: 189, dependent: 1140, dependent conditional: 1140, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170514, independent: 163356, independent conditional: 7285, independent unconditional: 156071, dependent: 7158, dependent conditional: 3956, dependent unconditional: 3202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 170514, independent: 163356, independent conditional: 2871, independent unconditional: 160485, dependent: 7158, dependent conditional: 236, dependent unconditional: 6922, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 170514, independent: 163356, independent conditional: 2871, independent unconditional: 160485, dependent: 7158, dependent conditional: 236, dependent unconditional: 6922, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 768, independent: 756, independent conditional: 14, independent unconditional: 742, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 768, independent: 742, independent conditional: 0, independent unconditional: 742, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 10, independent unconditional: 4, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 10, independent unconditional: 4, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, independent: 21, independent conditional: 15, independent unconditional: 6, dependent: 46, dependent conditional: 8, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 170514, independent: 162600, independent conditional: 2857, independent unconditional: 159743, dependent: 7146, dependent conditional: 233, dependent unconditional: 6913, unknown: 768, unknown conditional: 17, unknown unconditional: 751] , Statistics on independence cache: Total cache size (in pairs): 768, Positive cache size: 756, Positive conditional cache size: 14, Positive unconditional cache size: 742, Negative cache size: 12, Negative conditional cache size: 3, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8134, Maximal queried relation: 4, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170514, independent: 163356, independent conditional: 7285, independent unconditional: 156071, dependent: 7158, dependent conditional: 3956, dependent unconditional: 3202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 170514, independent: 163356, independent conditional: 2871, independent unconditional: 160485, dependent: 7158, dependent conditional: 236, dependent unconditional: 6922, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 170514, independent: 163356, independent conditional: 2871, independent unconditional: 160485, dependent: 7158, dependent conditional: 236, dependent unconditional: 6922, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 768, independent: 756, independent conditional: 14, independent unconditional: 742, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 768, independent: 742, independent conditional: 0, independent unconditional: 742, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 10, independent unconditional: 4, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 10, independent unconditional: 4, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, independent: 21, independent conditional: 15, independent unconditional: 6, dependent: 46, dependent conditional: 8, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 170514, independent: 162600, independent conditional: 2857, independent unconditional: 159743, dependent: 7146, dependent conditional: 233, dependent unconditional: 6913, unknown: 768, unknown conditional: 17, unknown unconditional: 751] , Statistics on independence cache: Total cache size (in pairs): 768, Positive cache size: 756, Positive conditional cache size: 14, Positive unconditional cache size: 742, Negative cache size: 12, Negative conditional cache size: 3, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8134 ], Independence queries for same thread: 312 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 118 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 2.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 336 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-04-04 04:50:32,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-04-04 04:50:32,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...