/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 19:42:27,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 19:42:27,133 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-30 19:42:27,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 19:42:27,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 19:42:27,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 19:42:27,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 19:42:27,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 19:42:27,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 19:42:27,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 19:42:27,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 19:42:27,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 19:42:27,161 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 19:42:27,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 19:42:27,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 19:42:27,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 19:42:27,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 19:42:27,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 19:42:27,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 19:42:27,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 19:42:27,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 19:42:27,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 19:42:27,165 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 19:42:27,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 19:42:27,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 19:42:27,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 19:42:27,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 19:42:27,165 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 19:42:27,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 19:42:27,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 19:42:27,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 19:42:27,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 19:42:27,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 19:42:27,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 19:42:27,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 19:42:27,378 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 19:42:27,378 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 19:42:27,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2024-05-30 19:42:28,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 19:42:28,722 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 19:42:28,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2024-05-30 19:42:28,728 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7ec4ddb10/00df315cbc6b41b48f544d3617ee107d/FLAG1b8283088 [2024-05-30 19:42:28,740 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7ec4ddb10/00df315cbc6b41b48f544d3617ee107d [2024-05-30 19:42:28,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 19:42:28,743 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 19:42:28,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 19:42:28,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 19:42:28,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 19:42:28,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:28,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b635fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28, skipping insertion in model container [2024-05-30 19:42:28,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:28,771 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 19:42:28,903 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2024-05-30 19:42:28,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 19:42:28,922 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 19:42:28,971 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2024-05-30 19:42:28,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 19:42:28,991 INFO L206 MainTranslator]: Completed translation [2024-05-30 19:42:28,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28 WrapperNode [2024-05-30 19:42:28,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 19:42:28,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 19:42:28,992 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 19:42:28,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 19:42:28,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,030 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 375 [2024-05-30 19:42:29,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 19:42:29,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 19:42:29,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 19:42:29,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 19:42:29,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 19:42:29,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 19:42:29,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 19:42:29,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 19:42:29,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (1/1) ... [2024-05-30 19:42:29,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 19:42:29,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 19:42:29,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-30 19:42:29,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-30 19:42:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 19:42:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-05-30 19:42:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 19:42:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 19:42:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-30 19:42:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-05-30 19:42:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-30 19:42:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-30 19:42:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-30 19:42:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-30 19:42:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-05-30 19:42:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-05-30 19:42:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 19:42:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 19:42:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 19:42:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-30 19:42:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 19:42:29,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 19:42:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 19:42:29,177 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-30 19:42:29,302 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 19:42:29,305 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 19:42:29,712 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 19:42:29,865 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 19:42:29,865 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2024-05-30 19:42:29,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 07:42:29 BoogieIcfgContainer [2024-05-30 19:42:29,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 19:42:29,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 19:42:29,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 19:42:29,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 19:42:29,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 07:42:28" (1/3) ... [2024-05-30 19:42:29,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc44617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 07:42:29, skipping insertion in model container [2024-05-30 19:42:29,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 07:42:28" (2/3) ... [2024-05-30 19:42:29,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc44617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 07:42:29, skipping insertion in model container [2024-05-30 19:42:29,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 07:42:29" (3/3) ... [2024-05-30 19:42:29,876 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2024-05-30 19:42:29,885 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 19:42:29,893 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 19:42:29,894 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-30 19:42:29,894 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 19:42:29,986 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-05-30 19:42:30,049 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 19:42:30,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 19:42:30,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 19:42:30,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-30 19:42:30,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-30 19:42:30,135 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 19:42:30,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 19:42:30,147 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;@641d0834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 19:42:30,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 19:42:31,726 INFO L78 Accepts]: Start accepts. Automaton has currently 43887 states, but on-demand construction may add more states Word has length 230 [2024-05-30 19:42:31,728 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:31,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:31,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:31,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2122779049, now seen corresponding path program 1 times [2024-05-30 19:42:31,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:31,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396386788] [2024-05-30 19:42:31,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:31,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 19:42:32,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:42:32,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396386788] [2024-05-30 19:42:32,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396386788] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 19:42:32,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 19:42:32,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 19:42:32,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247658095] [2024-05-30 19:42:32,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 19:42:32,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 19:42:32,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 19:42:32,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 19:42:32,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 19:42:32,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:32,346 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 19:42:32,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 19:42:32,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:33,528 INFO L78 Accepts]: Start accepts. Automaton has currently 43887 states, but on-demand construction may add more states Word has length 221 [2024-05-30 19:42:33,530 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:33,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 19:42:33,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:33,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:33,532 INFO L85 PathProgramCache]: Analyzing trace with hash -356539231, now seen corresponding path program 1 times [2024-05-30 19:42:33,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:33,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241409563] [2024-05-30 19:42:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:33,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:34,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-30 19:42:34,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:42:34,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241409563] [2024-05-30 19:42:34,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241409563] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 19:42:34,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 19:42:34,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-05-30 19:42:34,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840239252] [2024-05-30 19:42:34,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 19:42:34,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-05-30 19:42:34,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 19:42:34,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-05-30 19:42:34,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-05-30 19:42:34,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:34,020 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 19:42:34,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.1) internal successors, (221), 10 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 19:42:34,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:34,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:35,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:35,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:35,814 INFO L78 Accepts]: Start accepts. Automaton has currently 81786 states, but on-demand construction may add more states Word has length 253 [2024-05-30 19:42:35,815 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:35,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 19:42:35,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:35,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:35,816 INFO L85 PathProgramCache]: Analyzing trace with hash -954810250, now seen corresponding path program 1 times [2024-05-30 19:42:35,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:35,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047811999] [2024-05-30 19:42:35,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:35,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-30 19:42:36,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:42:36,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047811999] [2024-05-30 19:42:36,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047811999] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 19:42:36,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 19:42:36,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-05-30 19:42:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439752497] [2024-05-30 19:42:36,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 19:42:36,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-05-30 19:42:36,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 19:42:36,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-05-30 19:42:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-05-30 19:42:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:36,117 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 19:42:36,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 28.11111111111111) internal successors, (253), 9 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 19:42:36,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:36,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:36,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:38,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:38,258 INFO L78 Accepts]: Start accepts. Automaton has currently 81802 states, but on-demand construction may add more states Word has length 269 [2024-05-30 19:42:38,259 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:38,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 19:42:38,260 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:38,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:38,261 INFO L85 PathProgramCache]: Analyzing trace with hash -493648604, now seen corresponding path program 1 times [2024-05-30 19:42:38,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:38,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509783037] [2024-05-30 19:42:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:38,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-30 19:42:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:42:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509783037] [2024-05-30 19:42:38,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509783037] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 19:42:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383023835] [2024-05-30 19:42:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:38,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 19:42:38,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 19:42:38,562 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 19:42:38,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-30 19:42:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:38,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-30 19:42:38,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 19:42:38,946 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-30 19:42:38,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 19:42:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-30 19:42:39,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383023835] provided 1 perfect and 1 imperfect interpolant sequences [2024-05-30 19:42:39,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-05-30 19:42:39,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2024-05-30 19:42:39,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275387685] [2024-05-30 19:42:39,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 19:42:39,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 19:42:39,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 19:42:39,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 19:42:39,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-05-30 19:42:39,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:39,177 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 19:42:39,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.42857142857143) internal successors, (269), 7 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 19:42:39,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:39,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:39,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:39,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:39,363 INFO L78 Accepts]: Start accepts. Automaton has currently 5305 states, but on-demand construction may add more states Word has length 300 [2024-05-30 19:42:39,364 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:39,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-30 19:42:39,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 19:42:39,573 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:39,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:39,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1424095671, now seen corresponding path program 1 times [2024-05-30 19:42:39,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:39,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150960856] [2024-05-30 19:42:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:39,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-05-30 19:42:40,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:42:40,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150960856] [2024-05-30 19:42:40,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150960856] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 19:42:40,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124151100] [2024-05-30 19:42:40,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:40,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 19:42:40,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 19:42:40,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 19:42:40,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-30 19:42:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:40,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 10 conjunts are in the unsatisfiable core [2024-05-30 19:42:40,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 19:42:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-05-30 19:42:40,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 19:42:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-05-30 19:42:40,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124151100] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 19:42:40,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 19:42:40,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-05-30 19:42:40,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907496160] [2024-05-30 19:42:40,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 19:42:40,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-05-30 19:42:40,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 19:42:40,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-05-30 19:42:40,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-05-30 19:42:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:40,998 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 19:42:40,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.96) internal successors, (399), 25 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 19:42:40,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:40,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:40,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:40,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:40,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-30 19:42:41,408 INFO L78 Accepts]: Start accepts. Automaton has currently 5323 states, but on-demand construction may add more states Word has length 316 [2024-05-30 19:42:41,410 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:41,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-30 19:42:41,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 19:42:41,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:41,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1248348489, now seen corresponding path program 2 times [2024-05-30 19:42:41,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:41,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028374488] [2024-05-30 19:42:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:41,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:41,988 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-30 19:42:41,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:42:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028374488] [2024-05-30 19:42:41,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028374488] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 19:42:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346611622] [2024-05-30 19:42:41,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 19:42:41,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 19:42:41,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 19:42:41,994 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 19:42:42,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-30 19:42:42,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-30 19:42:42,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 19:42:42,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 10 conjunts are in the unsatisfiable core [2024-05-30 19:42:42,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 19:42:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-30 19:42:42,562 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 19:42:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-30 19:42:42,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346611622] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 19:42:42,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 19:42:42,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-05-30 19:42:42,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317884777] [2024-05-30 19:42:42,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 19:42:42,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-05-30 19:42:42,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 19:42:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-05-30 19:42:42,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-05-30 19:42:42,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:42,847 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 19:42:42,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 17.125) internal successors, (411), 24 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 19:42:42,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:42,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:42,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:42,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:42,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-30 19:42:42,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:45,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:45,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-30 19:42:45,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-05-30 19:42:45,044 INFO L78 Accepts]: Start accepts. Automaton has currently 84559 states, but on-demand construction may add more states Word has length 347 [2024-05-30 19:42:45,052 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:45,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-30 19:42:45,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 19:42:45,260 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:45,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:45,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1838288654, now seen corresponding path program 3 times [2024-05-30 19:42:45,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:45,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197384668] [2024-05-30 19:42:45,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:45,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-05-30 19:42:45,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:42:45,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197384668] [2024-05-30 19:42:45,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197384668] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 19:42:45,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 19:42:45,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-05-30 19:42:45,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830410367] [2024-05-30 19:42:45,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 19:42:45,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-05-30 19:42:45,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 19:42:45,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-05-30 19:42:45,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-05-30 19:42:45,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:45,914 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 19:42:45,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.428571428571427) internal successors, (300), 14 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 19:42:45,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:45,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:45,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:45,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:45,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-30 19:42:45,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-05-30 19:42:45,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-30 19:42:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-05-30 19:42:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-30 19:42:48,342 INFO L78 Accepts]: Start accepts. Automaton has currently 98288 states, but on-demand construction may add more states Word has length 325 [2024-05-30 19:42:48,346 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:48,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-30 19:42:48,347 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:48,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:48,347 INFO L85 PathProgramCache]: Analyzing trace with hash -860847396, now seen corresponding path program 1 times [2024-05-30 19:42:48,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:48,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741940796] [2024-05-30 19:42:48,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:48,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-05-30 19:42:48,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:42:48,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741940796] [2024-05-30 19:42:48,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741940796] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 19:42:48,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383367720] [2024-05-30 19:42:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:48,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 19:42:48,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 19:42:48,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 19:42:48,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-30 19:42:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:42:48,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 8 conjunts are in the unsatisfiable core [2024-05-30 19:42:48,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 19:42:48,895 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-05-30 19:42:48,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 19:42:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-05-30 19:42:49,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383367720] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 19:42:49,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 19:42:49,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 16 [2024-05-30 19:42:49,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800021196] [2024-05-30 19:42:49,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 19:42:49,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-30 19:42:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 19:42:49,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-30 19:42:49,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-05-30 19:42:49,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:49,030 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 19:42:49,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.375) internal successors, (310), 16 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 19:42:49,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:49,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:49,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:49,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:49,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-30 19:42:49,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-05-30 19:42:49,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-05-30 19:42:49,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 19:42:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 19:42:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 19:42:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-30 19:42:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-05-30 19:42:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-30 19:42:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 19:42:52,545 INFO L78 Accepts]: Start accepts. Automaton has currently 127725 states, but on-demand construction may add more states Word has length 355 [2024-05-30 19:42:52,547 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 19:42:52,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-05-30 19:42:52,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-05-30 19:42:52,753 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 19:42:52,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 19:42:52,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1145696969, now seen corresponding path program 1 times [2024-05-30 19:42:52,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 19:42:52,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727018082] [2024-05-30 19:42:52,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:42:52,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 19:42:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:43:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 19:43:10,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 19:43:10,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727018082] [2024-05-30 19:43:10,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727018082] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 19:43:10,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551113492] [2024-05-30 19:43:10,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 19:43:10,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 19:43:10,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 19:43:10,790 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 19:43:10,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-30 19:43:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 19:43:11,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 137 conjunts are in the unsatisfiable core [2024-05-30 19:43:11,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 19:43:14,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-05-30 19:43:15,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-05-30 19:43:15,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-05-30 19:43:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-05-30 19:43:16,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-05-30 19:43:16,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-05-30 19:43:16,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-05-30 19:43:38,023 INFO L349 Elim1Store]: treesize reduction 410, result has 12.6 percent of original size [2024-05-30 19:43:38,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 15 new quantified variables, introduced 36 case distinctions, treesize of input 210 treesize of output 162 [2024-05-30 19:43:38,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 77 [2024-05-30 19:43:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-30 19:43:38,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 19:43:55,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 19:43:55,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 262 Received shutdown request... [2024-05-30 19:56:47,453 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 [2024-05-30 19:56:47,453 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-30 19:56:47,475 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 [2024-05-30 19:56:48,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-30 19:56:48,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-05-30 19:56:48,653 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-05-30 19:56:48,725 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-30 19:56:48,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-05-30 19:56:48,726 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:233) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:346) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:227) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 54 more [2024-05-30 19:56:48,729 INFO L158 Benchmark]: Toolchain (without parser) took 859986.44ms. Allocated memory was 163.6MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 92.0MB in the beginning and 4.8GB in the end (delta: -4.7GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. [2024-05-30 19:56:48,729 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 163.6MB. Free memory was 95.6MB in the beginning and 95.5MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 8.0GB. [2024-05-30 19:56:48,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.07ms. Allocated memory was 163.6MB in the beginning and 327.2MB in the end (delta: 163.6MB). Free memory was 91.9MB in the beginning and 294.3MB in the end (delta: -202.4MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. [2024-05-30 19:56:48,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.23ms. Allocated memory is still 327.2MB. Free memory was 294.2MB in the beginning and 291.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-05-30 19:56:48,730 INFO L158 Benchmark]: Boogie Preprocessor took 39.13ms. Allocated memory is still 327.2MB. Free memory was 291.1MB in the beginning and 288.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-05-30 19:56:48,730 INFO L158 Benchmark]: RCFGBuilder took 795.41ms. Allocated memory is still 327.2MB. Free memory was 288.4MB in the beginning and 237.2MB in the end (delta: 51.3MB). Peak memory consumption was 53.9MB. Max. memory is 8.0GB. [2024-05-30 19:56:48,730 INFO L158 Benchmark]: TraceAbstraction took 858859.48ms. Allocated memory was 327.2MB in the beginning and 6.2GB in the end (delta: 5.9GB). Free memory was 236.1MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. [2024-05-30 19:56:48,731 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 163.6MB. Free memory was 95.6MB in the beginning and 95.5MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 248.07ms. Allocated memory was 163.6MB in the beginning and 327.2MB in the end (delta: 163.6MB). Free memory was 91.9MB in the beginning and 294.3MB in the end (delta: -202.4MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.23ms. Allocated memory is still 327.2MB. Free memory was 294.2MB in the beginning and 291.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.13ms. Allocated memory is still 327.2MB. Free memory was 291.1MB in the beginning and 288.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 795.41ms. Allocated memory is still 327.2MB. Free memory was 288.4MB in the beginning and 237.2MB in the end (delta: 51.3MB). Peak memory consumption was 53.9MB. Max. memory is 8.0GB. * TraceAbstraction took 858859.48ms. Allocated memory was 327.2MB in the beginning and 6.2GB in the end (delta: 5.9GB). Free memory was 236.1MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown [2024-05-30 19:56:48,737 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-05-30 19:56:48,739 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 137 !ENTRY org.eclipse.osgi 4 0 2024-05-30 19:56:48.743 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7ec4ddb10/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438)