/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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-25 22:48:18,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-25 22:48:18,379 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-01-25 22:48:18,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-25 22:48:18,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-25 22:48:18,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-01-25 22:48:18,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-25 22:48:18,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-25 22:48:18,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-25 22:48:18,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-25 22:48:18,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-25 22:48:18,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-25 22:48:18,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-25 22:48:18,413 INFO L153 SettingsManager]: * Use SBE=true [2024-01-25 22:48:18,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-25 22:48:18,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-25 22:48:18,413 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-25 22:48:18,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-25 22:48:18,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-25 22:48:18,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-25 22:48:18,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-25 22:48:18,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-25 22:48:18,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-25 22:48:18,415 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-25 22:48:18,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-25 22:48:18,415 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-25 22:48:18,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-25 22:48:18,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-25 22:48:18,416 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-25 22:48:18,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-25 22:48:18,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-25 22:48:18,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-25 22:48:18,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-25 22:48:18,417 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-01-25 22:48:18,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-01-25 22:48:18,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-25 22:48:18,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-25 22:48:18,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-25 22:48:18,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-25 22:48:18,418 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-25 22:48:18,418 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-01-25 22:48:18,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-01-25 22:48:18,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-25 22:48:18,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-25 22:48:18,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-25 22:48:18,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-25 22:48:18,605 INFO L274 PluginConnector]: CDTParser initialized [2024-01-25 22:48:18,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-25 22:48:19,571 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-25 22:48:19,737 INFO L384 CDTParser]: Found 1 translation units. [2024-01-25 22:48:19,738 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-25 22:48:19,748 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7793ca93d/c91acab113ed40adbb63cd77ef8a7bf4/FLAGf3fb2a92f [2024-01-25 22:48:19,757 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7793ca93d/c91acab113ed40adbb63cd77ef8a7bf4 [2024-01-25 22:48:19,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-25 22:48:19,760 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-25 22:48:19,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-25 22:48:19,761 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-25 22:48:19,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-25 22:48:19,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 10:48:19" (1/1) ... [2024-01-25 22:48:19,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6be0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:19, skipping insertion in model container [2024-01-25 22:48:19,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 10:48:19" (1/1) ... [2024-01-25 22:48:19,820 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-25 22:48:19,930 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-01-25 22:48:20,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-25 22:48:20,045 INFO L202 MainTranslator]: Completed pre-run [2024-01-25 22:48:20,055 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-01-25 22:48:20,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-25 22:48:20,115 INFO L206 MainTranslator]: Completed translation [2024-01-25 22:48:20,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20 WrapperNode [2024-01-25 22:48:20,116 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-25 22:48:20,117 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-25 22:48:20,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-25 22:48:20,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-25 22:48:20,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,158 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2024-01-25 22:48:20,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-25 22:48:20,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-25 22:48:20,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-25 22:48:20,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-25 22:48:20,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,169 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-25 22:48:20,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-25 22:48:20,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-25 22:48:20,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-25 22:48:20,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (1/1) ... [2024-01-25 22:48:20,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-25 22:48:20,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-25 22:48:20,203 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 22:48:20,218 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 22:48:20,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-25 22:48:20,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-25 22:48:20,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-25 22:48:20,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-25 22:48:20,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-25 22:48:20,221 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-25 22:48:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-25 22:48:20,221 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-25 22:48:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-25 22:48:20,221 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-25 22:48:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-25 22:48:20,221 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-01-25 22:48:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-01-25 22:48:20,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-25 22:48:20,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-25 22:48:20,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-25 22:48:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-25 22:48:20,222 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 22:48:20,315 INFO L241 CfgBuilder]: Building ICFG [2024-01-25 22:48:20,317 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-25 22:48:20,494 INFO L282 CfgBuilder]: Performing block encoding [2024-01-25 22:48:20,501 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-25 22:48:20,501 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-25 22:48:20,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 10:48:20 BoogieIcfgContainer [2024-01-25 22:48:20,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-25 22:48:20,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-25 22:48:20,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-25 22:48:20,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-25 22:48:20,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 10:48:19" (1/3) ... [2024-01-25 22:48:20,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ec2eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 10:48:20, skipping insertion in model container [2024-01-25 22:48:20,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 10:48:20" (2/3) ... [2024-01-25 22:48:20,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ec2eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 10:48:20, skipping insertion in model container [2024-01-25 22:48:20,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 10:48:20" (3/3) ... [2024-01-25 22:48:20,506 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-25 22:48:20,512 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-25 22:48:20,517 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-25 22:48:20,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-25 22:48:20,518 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-25 22:48:20,566 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-25 22:48:20,595 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-25 22:48:20,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-25 22:48:20,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-25 22:48:20,610 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 22:48:20,617 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 22:48:20,666 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-01-25 22:48:20,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-25 22:48:20,678 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;@7b89a22e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-25 22:48:20,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2024-01-25 22:48:20,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-25 22:48:20,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-25 22:48:20,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1717168403, now seen corresponding path program 1 times [2024-01-25 22:48:20,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-25 22:48:20,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652595120] [2024-01-25 22:48:20,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-25 22:48:20,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-25 22:48:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-25 22:48:20,931 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 22:48:20,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-25 22:48:20,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652595120] [2024-01-25 22:48:20,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652595120] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-25 22:48:20,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-25 22:48:20,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-25 22:48:20,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966836925] [2024-01-25 22:48:20,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-25 22:48:20,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-25 22:48:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-25 22:48:20,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-25 22:48:20,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-25 22:48:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-25 22:48:20,955 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-25 22:48:20,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 22:48:20,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-25 22:48:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-25 22:48:32,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-25 22:48:32,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-25 22:48:32,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-25 22:48:32,432 INFO L85 PathProgramCache]: Analyzing trace with hash -36225358, now seen corresponding path program 1 times [2024-01-25 22:48:32,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-25 22:48:32,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017450626] [2024-01-25 22:48:32,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-25 22:48:32,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-25 22:48:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-25 22:48:32,790 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 22:48:32,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-25 22:48:32,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017450626] [2024-01-25 22:48:32,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017450626] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-25 22:48:32,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-25 22:48:32,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-25 22:48:32,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707077656] [2024-01-25 22:48:32,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-25 22:48:32,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-25 22:48:32,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-25 22:48:32,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-25 22:48:32,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-25 22:48:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-25 22:48:32,795 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-25 22:48:32,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 22:48:32,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-25 22:48:32,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2024-01-25 23:03:01,720 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 23:03:01,734 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 23:03:02,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-25 23:03:02,422 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2024-01-25 23:03:02,424 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-01-25 23:03:02,474 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-25 23:03:02,476 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/5) [2024-01-25 23:03:02,477 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-25 23:03:02,477 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-25 23:03:02,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 11:03:02 BasicIcfg [2024-01-25 23:03:02,479 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-25 23:03:02,479 INFO L158 Benchmark]: Toolchain (without parser) took 882719.61ms. Allocated memory was 216.0MB in the beginning and 644.9MB in the end (delta: 428.9MB). Free memory was 174.9MB in the beginning and 203.7MB in the end (delta: -28.8MB). Peak memory consumption was 559.1MB. Max. memory is 8.0GB. [2024-01-25 23:03:02,480 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 216.0MB. Free memory is still 168.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-01-25 23:03:02,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.58ms. Allocated memory is still 216.0MB. Free memory was 174.6MB in the beginning and 153.3MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2024-01-25 23:03:02,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.51ms. Allocated memory is still 216.0MB. Free memory was 153.3MB in the beginning and 151.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-25 23:03:02,481 INFO L158 Benchmark]: Boogie Preprocessor took 15.92ms. Allocated memory is still 216.0MB. Free memory was 151.2MB in the beginning and 149.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-25 23:03:02,481 INFO L158 Benchmark]: RCFGBuilder took 326.96ms. Allocated memory is still 216.0MB. Free memory was 149.5MB in the beginning and 134.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-01-25 23:03:02,481 INFO L158 Benchmark]: TraceAbstraction took 881976.07ms. Allocated memory was 216.0MB in the beginning and 644.9MB in the end (delta: 428.9MB). Free memory was 134.2MB in the beginning and 203.7MB in the end (delta: -69.6MB). Peak memory consumption was 519.2MB. Max. memory is 8.0GB. [2024-01-25 23:03:02,483 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 216.0MB. Free memory is still 168.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 355.58ms. Allocated memory is still 216.0MB. Free memory was 174.6MB in the beginning and 153.3MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.51ms. Allocated memory is still 216.0MB. Free memory was 153.3MB in the beginning and 151.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.92ms. Allocated memory is still 216.0MB. Free memory was 151.2MB in the beginning and 149.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 326.96ms. Allocated memory is still 216.0MB. Free memory was 149.5MB in the beginning and 134.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 881976.07ms. Allocated memory was 216.0MB in the beginning and 644.9MB in the end (delta: 428.9MB). Free memory was 134.2MB in the beginning and 203.7MB in the end (delta: -69.6MB). Peak memory consumption was 519.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 57207, independent: 57099, independent conditional: 57099, independent unconditional: 0, dependent: 108, dependent conditional: 108, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 57205, independent: 57099, independent conditional: 57099, independent unconditional: 0, dependent: 106, dependent conditional: 106, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 57205, independent: 57099, independent conditional: 57099, independent unconditional: 0, dependent: 106, dependent conditional: 106, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 57417, independent: 57099, independent conditional: 0, independent unconditional: 57099, dependent: 318, dependent conditional: 212, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 57417, independent: 57099, independent conditional: 0, independent unconditional: 57099, dependent: 318, dependent conditional: 0, dependent unconditional: 318, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 57417, independent: 57099, independent conditional: 0, independent unconditional: 57099, dependent: 318, dependent conditional: 0, dependent unconditional: 318, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 57205, independent: 57099, independent conditional: 0, independent unconditional: 57099, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 57205, independent: 57099, independent conditional: 0, independent unconditional: 57099, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 106, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 106, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 106, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 125, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 57417, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 57205, unknown conditional: 0, unknown unconditional: 57205] , Statistics on independence cache: Total cache size (in pairs): 57205, Positive cache size: 57099, Positive conditional cache size: 0, Positive unconditional cache size: 57099, Negative cache size: 106, Negative conditional cache size: 0, Negative unconditional cache size: 106, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 212, Maximal queried relation: 2, Independence queries for same thread: 2 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 0, RedundantProofs: 0, ProvenStates: 3, Times there's more than one choice: 1, Avg number of choices: 1.3333333333333333 - StatisticsResult: Reduction benchmarks 11.5s Time before loop, 0.0s Time in loop, 11.5s Time in total, Has Loop: false, Protected Variables: [], Protected Variables before encountering a loop: [] - TimeoutResultAtElement [Line: 18]: 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 ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 9 procedures, 141 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 881.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 881.2s, 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: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 843 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