/usr/lib/jvm/java-1.11.0-openjdk-amd64/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/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-25 21:50:10,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-25 21:50:10,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-01-25 21:50:10,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-25 21:50:10,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-25 21:50:10,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-01-25 21:50:10,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-25 21:50:10,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-25 21:50:10,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-25 21:50:10,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-25 21:50:10,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-25 21:50:10,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-25 21:50:10,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-25 21:50:10,594 INFO L153 SettingsManager]: * Use SBE=true [2024-01-25 21:50:10,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-25 21:50:10,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-25 21:50:10,594 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-25 21:50:10,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-25 21:50:10,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-25 21:50:10,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-25 21:50:10,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-25 21:50:10,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-25 21:50:10,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-25 21:50:10,601 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-25 21:50:10,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-25 21:50:10,601 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-25 21:50:10,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-25 21:50:10,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-25 21:50:10,602 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-25 21:50:10,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-25 21:50:10,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-25 21:50:10,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-25 21:50:10,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-25 21:50:10,603 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-01-25 21:50:10,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-01-25 21:50:10,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-25 21:50:10,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-25 21:50:10,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-25 21:50:10,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-25 21:50:10,604 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-25 21:50:10,604 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-01-25 21:50:10,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-01-25 21:50:10,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-25 21:50:10,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-25 21:50:10,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-25 21:50:10,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-25 21:50:10,799 INFO L274 PluginConnector]: CDTParser initialized [2024-01-25 21:50:10,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_power.oepc.i [2024-01-25 21:50:12,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-25 21:50:12,160 INFO L384 CDTParser]: Found 1 translation units. [2024-01-25 21:50:12,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_power.oepc.i [2024-01-25 21:50:12,170 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a7b7f2052/f8cf49d91cf2444db45c0bc455da3986/FLAG6fadcb065 [2024-01-25 21:50:12,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a7b7f2052/f8cf49d91cf2444db45c0bc455da3986 [2024-01-25 21:50:12,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-25 21:50:12,181 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-25 21:50:12,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-25 21:50:12,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-25 21:50:12,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-25 21:50:12,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e06ba3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12, skipping insertion in model container [2024-01-25 21:50:12,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,223 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-25 21:50:12,333 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_power.oepc.i[995,1008] [2024-01-25 21:50:12,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-25 21:50:12,491 INFO L202 MainTranslator]: Completed pre-run [2024-01-25 21:50:12,502 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_power.oepc.i[995,1008] [2024-01-25 21:50:12,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-25 21:50:12,607 INFO L206 MainTranslator]: Completed translation [2024-01-25 21:50:12,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12 WrapperNode [2024-01-25 21:50:12,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-25 21:50:12,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-25 21:50:12,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-25 21:50:12,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-25 21:50:12,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,673 INFO L138 Inliner]: procedures = 176, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2024-01-25 21:50:12,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-25 21:50:12,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-25 21:50:12,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-25 21:50:12,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-25 21:50:12,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-25 21:50:12,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-25 21:50:12,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-25 21:50:12,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-25 21:50:12,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (1/1) ... [2024-01-25 21:50:12,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-25 21:50:12,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-25 21:50:12,749 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) [2024-01-25 21:50:12,779 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 [2024-01-25 21:50:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-25 21:50:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-25 21:50:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-25 21:50:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-25 21:50:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-25 21:50:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-25 21:50:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-25 21:50:12,786 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-25 21:50:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-25 21:50:12,786 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-25 21:50:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-25 21:50:12,787 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-25 21:50:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-25 21:50:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-25 21:50:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-25 21:50:12,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-25 21:50:12,789 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-25 21:50:12,903 INFO L241 CfgBuilder]: Building ICFG [2024-01-25 21:50:12,905 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-25 21:50:13,247 INFO L282 CfgBuilder]: Performing block encoding [2024-01-25 21:50:13,449 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-25 21:50:13,449 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-25 21:50:13,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 09:50:13 BoogieIcfgContainer [2024-01-25 21:50:13,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-25 21:50:13,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-25 21:50:13,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-25 21:50:13,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-25 21:50:13,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 09:50:12" (1/3) ... [2024-01-25 21:50:13,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589e36f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 09:50:13, skipping insertion in model container [2024-01-25 21:50:13,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 09:50:12" (2/3) ... [2024-01-25 21:50:13,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589e36f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 09:50:13, skipping insertion in model container [2024-01-25 21:50:13,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 09:50:13" (3/3) ... [2024-01-25 21:50:13,457 INFO L112 eAbstractionObserver]: Analyzing ICFG safe000_power.oepc.i [2024-01-25 21:50:13,463 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-25 21:50:13,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-25 21:50:13,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-25 21:50:13,470 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-25 21:50:13,527 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-25 21:50:13,565 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-25 21:50:13,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-25 21:50:13,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-25 21:50:13,594 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) [2024-01-25 21:50:13,597 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 [2024-01-25 21:50:13,627 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-01-25 21:50:13,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-25 21:50:13,638 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b4723f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-25 21:50:13,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2024-01-25 21:50:13,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-25 21:50:13,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-25 21:50:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1302809140, now seen corresponding path program 1 times [2024-01-25 21:50:13,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-25 21:50:13,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392938807] [2024-01-25 21:50:13,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-25 21:50:13,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-25 21:50:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-25 21:50:13,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-25 21:50:13,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-25 21:50:13,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392938807] [2024-01-25 21:50:13,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392938807] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-25 21:50:13,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-25 21:50:13,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-25 21:50:13,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032288810] [2024-01-25 21:50:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-25 21:50:13,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-25 21:50:13,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-25 21:50:13,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-25 21:50:13,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-25 21:50:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-25 21:50:13,975 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-25 21:50:13,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.5) internal successors, (89), 2 states have internal predecessors, (89), 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) [2024-01-25 21:50:13,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-25 21:51:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-25 21:51:12,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-25 21:51:12,580 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-25 21:51:12,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-25 21:51:12,580 INFO L85 PathProgramCache]: Analyzing trace with hash -376967040, now seen corresponding path program 1 times [2024-01-25 21:51:12,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-25 21:51:12,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407617202] [2024-01-25 21:51:12,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-25 21:51:12,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-25 21:51:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-25 21:51:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-25 21:51:13,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-25 21:51:13,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407617202] [2024-01-25 21:51:13,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407617202] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-25 21:51:13,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-25 21:51:13,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-25 21:51:13,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688559790] [2024-01-25 21:51:13,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-25 21:51:13,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-25 21:51:13,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-25 21:51:13,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-25 21:51:13,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-25 21:51:13,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-25 21:51:13,096 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-25 21:51:13,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-01-25 21:51:13,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-25 21:51:13,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2024-01-25 22:04:32,487 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-25 22:04:32,488 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-25 22:04:32,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-25 22:04:32,493 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-3-5-2-4-2-1 context. [2024-01-25 22:04:32,494 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-01-25 22:04:32,542 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-25 22:04:32,543 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/4) [2024-01-25 22:04:32,545 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-25 22:04:32,545 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-25 22:04:32,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 10:04:32 BasicIcfg [2024-01-25 22:04:32,547 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-25 22:04:32,547 INFO L158 Benchmark]: Toolchain (without parser) took 860366.45ms. Allocated memory was 183.5MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 131.5MB in the beginning and 1.1GB in the end (delta: -984.6MB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2024-01-25 22:04:32,547 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory was 137.6MB in the beginning and 137.4MB in the end (delta: 153.0kB). There was no memory consumed. Max. memory is 8.0GB. [2024-01-25 22:04:32,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.54ms. Allocated memory is still 183.5MB. Free memory was 131.0MB in the beginning and 104.2MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2024-01-25 22:04:32,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.75ms. Allocated memory is still 183.5MB. Free memory was 104.2MB in the beginning and 101.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-01-25 22:04:32,548 INFO L158 Benchmark]: Boogie Preprocessor took 41.52ms. Allocated memory is still 183.5MB. Free memory was 101.1MB in the beginning and 98.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-25 22:04:32,549 INFO L158 Benchmark]: RCFGBuilder took 734.19ms. Allocated memory was 183.5MB in the beginning and 292.6MB in the end (delta: 109.1MB). Free memory was 98.5MB in the beginning and 186.5MB in the end (delta: -88.0MB). Peak memory consumption was 32.0MB. Max. memory is 8.0GB. [2024-01-25 22:04:32,549 INFO L158 Benchmark]: TraceAbstraction took 859095.22ms. Allocated memory was 292.6MB in the beginning and 3.0GB in the end (delta: 2.7GB). Free memory was 186.0MB in the beginning and 1.1GB in the end (delta: -930.1MB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2024-01-25 22:04:32,550 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory was 137.6MB in the beginning and 137.4MB in the end (delta: 153.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 426.54ms. Allocated memory is still 183.5MB. Free memory was 131.0MB in the beginning and 104.2MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.75ms. Allocated memory is still 183.5MB. Free memory was 104.2MB in the beginning and 101.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.52ms. Allocated memory is still 183.5MB. Free memory was 101.1MB in the beginning and 98.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 734.19ms. Allocated memory was 183.5MB in the beginning and 292.6MB in the end (delta: 109.1MB). Free memory was 98.5MB in the beginning and 186.5MB in the end (delta: -88.0MB). Peak memory consumption was 32.0MB. Max. memory is 8.0GB. * TraceAbstraction took 859095.22ms. Allocated memory was 292.6MB in the beginning and 3.0GB in the end (delta: 2.7GB). Free memory was 186.0MB in the beginning and 1.1GB in the end (delta: -930.1MB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31007, independent: 30813, independent conditional: 30813, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 183, unknown conditional: 183, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31005, independent: 30813, independent conditional: 30813, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 183, unknown conditional: 183, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 31005, independent: 30813, independent conditional: 30813, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 183, unknown conditional: 183, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31366, independent: 30813, independent conditional: 0, independent unconditional: 30813, dependent: 27, dependent conditional: 18, dependent unconditional: 9, unknown: 526, unknown conditional: 343, unknown unconditional: 183] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 31366, independent: 30813, independent conditional: 0, independent unconditional: 30813, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 526, unknown conditional: 0, unknown unconditional: 526] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31366, independent: 30813, independent conditional: 0, independent unconditional: 30813, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 526, unknown conditional: 0, unknown unconditional: 526] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31005, independent: 30813, independent conditional: 0, independent unconditional: 30813, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 183, unknown conditional: 0, unknown unconditional: 183] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31005, independent: 30813, independent conditional: 0, independent unconditional: 30813, dependent: 192, dependent conditional: 0, dependent unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 192, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 183, unknown conditional: 0, unknown unconditional: 183] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 192, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 183, unknown conditional: 0, unknown unconditional: 183] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 192, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 183, unknown conditional: 0, unknown unconditional: 183] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5352, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 5346, unknown conditional: 0, unknown unconditional: 5346] , Protected Queries: 0 ], Cache Queries: [ total: 31366, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 31348, unknown conditional: 0, unknown unconditional: 31348] , Statistics on independence cache: Total cache size (in pairs): 30822, Positive cache size: 30813, Positive conditional cache size: 0, Positive unconditional cache size: 30813, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 183, Unknown conditional cache size: 0, Unknown unconditional cache size: 183, Eliminated conditions: 361, Maximal queried relation: 2, Independence queries for same thread: 2 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 0, RedundantProofs: 0, ProvenStates: 4, Times there's more than one choice: 1, Avg number of choices: 1.25 - StatisticsResult: Reduction benchmarks 58.6s Time before loop, 0.0s Time in loop, 58.6s Time in total, Has Loop: false, Protected Variables: [], Protected Variables before encountering a loop: [] - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-3-5-2-4-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 7 procedures, 155 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 858.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 858.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown