/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/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-dec-subseq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 16:35:04,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 16:35:04,381 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 16:35:04,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 16:35:04,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 16:35:04,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 16:35:04,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 16:35:04,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 16:35:04,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 16:35:04,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 16:35:04,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 16:35:04,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 16:35:04,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 16:35:04,421 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 16:35:04,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 16:35:04,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 16:35:04,422 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 16:35:04,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 16:35:04,422 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 16:35:04,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 16:35:04,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 16:35:04,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 16:35:04,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 16:35:04,424 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 16:35:04,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 16:35:04,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 16:35:04,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 16:35:04,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 16:35:04,424 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 16:35:04,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 16:35:04,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 16:35:04,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 16:35:04,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 16:35:04,426 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 16:35:04,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 16:35:04,426 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 16:35:04,426 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 16:35:04,426 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 16:35:04,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 16:35:04,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 16:35:04,427 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 16:35:04,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 16:35:04,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 16:35:04,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 16:35:04,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 16:35:04,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 16:35:04,665 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 16:35:04,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-dec-subseq.wvr.c [2024-05-30 16:35:05,634 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 16:35:05,808 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 16:35:05,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-dec-subseq.wvr.c [2024-05-30 16:35:05,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/49d4c2057/c59aab8ee98d4db3894b8ebb6529c7bd/FLAG0465bedf7 [2024-05-30 16:35:05,825 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/49d4c2057/c59aab8ee98d4db3894b8ebb6529c7bd [2024-05-30 16:35:05,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 16:35:05,827 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 16:35:05,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 16:35:05,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 16:35:05,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 16:35:05,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 04:35:05" (1/1) ... [2024-05-30 16:35:05,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6555d19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:05, skipping insertion in model container [2024-05-30 16:35:05,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 04:35:05" (1/1) ... [2024-05-30 16:35:05,859 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 16:35:05,980 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-more-dec-subseq.wvr.c[2924,2937] [2024-05-30 16:35:05,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 16:35:05,993 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 16:35:06,008 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-more-dec-subseq.wvr.c[2924,2937] [2024-05-30 16:35:06,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 16:35:06,020 INFO L206 MainTranslator]: Completed translation [2024-05-30 16:35:06,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06 WrapperNode [2024-05-30 16:35:06,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 16:35:06,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 16:35:06,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 16:35:06,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 16:35:06,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,084 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 197 [2024-05-30 16:35:06,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 16:35:06,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 16:35:06,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 16:35:06,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 16:35:06,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 16:35:06,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 16:35:06,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 16:35:06,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 16:35:06,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (1/1) ... [2024-05-30 16:35:06,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 16:35:06,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:06,166 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 16:35:06,180 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 16:35:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 16:35:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-30 16:35:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-30 16:35:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-30 16:35:06,205 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 16:35:06,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-30 16:35:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 16:35:06,206 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 16:35:06,280 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 16:35:06,282 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 16:35:06,515 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 16:35:06,571 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 16:35:06,571 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2024-05-30 16:35:06,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 04:35:06 BoogieIcfgContainer [2024-05-30 16:35:06,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 16:35:06,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 16:35:06,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 16:35:06,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 16:35:06,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 04:35:05" (1/3) ... [2024-05-30 16:35:06,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516c7c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 04:35:06, skipping insertion in model container [2024-05-30 16:35:06,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:35:06" (2/3) ... [2024-05-30 16:35:06,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516c7c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 04:35:06, skipping insertion in model container [2024-05-30 16:35:06,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 04:35:06" (3/3) ... [2024-05-30 16:35:06,577 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2024-05-30 16:35:06,588 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 16:35:06,595 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 16:35:06,595 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-30 16:35:06,595 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 16:35:06,643 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-30 16:35:06,686 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:35:06,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 16:35:06,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:06,687 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 16:35:06,688 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 16:35:06,718 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 16:35:06,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 16:35:06,730 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49099ad2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:35:06,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 16:35:06,735 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:06,886 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:06,886 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:06,886 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:06,918 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:06,918 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:06,918 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:06,958 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:06,959 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:06,959 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:06,995 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:06,995 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:06,995 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,068 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,068 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,068 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,091 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,092 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,092 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,143 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,143 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,143 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,162 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,162 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,162 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,171 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 272 states. [2024-05-30 16:35:07,172 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-30 16:35:07,175 INFO L78 Accepts]: Start accepts. Automaton has currently 273 states, but on-demand construction may add more states Word has length 153 [2024-05-30 16:35:07,178 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:07,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:07,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash -551626075, now seen corresponding path program 1 times [2024-05-30 16:35:07,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:07,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058488155] [2024-05-30 16:35:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:07,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:07,495 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 16:35:07,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:07,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058488155] [2024-05-30 16:35:07,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058488155] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:35:07,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:35:07,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 16:35:07,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170141097] [2024-05-30 16:35:07,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:35:07,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 16:35:07,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:07,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 16:35:07,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 16:35:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:07,523 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:07,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 16:35:07,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:07,524 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:07,563 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,563 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,563 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,574 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,574 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,574 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,585 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,586 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,586 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,608 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,608 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,608 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,647 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,647 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,647 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,664 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,664 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,664 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,689 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,689 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,689 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,706 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:07,706 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:07,706 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:07,713 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 301 states. [2024-05-30 16:35:07,713 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-30 16:35:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:07,714 INFO L78 Accepts]: Start accepts. Automaton has currently 302 states, but on-demand construction may add more states Word has length 147 [2024-05-30 16:35:07,716 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:07,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 16:35:07,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:07,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:07,718 INFO L85 PathProgramCache]: Analyzing trace with hash 320954938, now seen corresponding path program 1 times [2024-05-30 16:35:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:07,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816267071] [2024-05-30 16:35:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:07,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:07,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:35:07,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:07,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816267071] [2024-05-30 16:35:07,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816267071] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:35:07,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:35:07,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 16:35:07,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033398478] [2024-05-30 16:35:07,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:35:07,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 16:35:07,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:07,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 16:35:07,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 16:35:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:07,997 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:07,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 16:35:07,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:07,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:07,998 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:08,058 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,060 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,061 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,075 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,079 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,079 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,096 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,097 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,097 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,150 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,150 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,151 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,168 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 285 states. [2024-05-30 16:35:08,168 INFO L212 cStratifiedReduction]: Copied states 4 times. [2024-05-30 16:35:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:08,169 INFO L78 Accepts]: Start accepts. Automaton has currently 291 states, but on-demand construction may add more states Word has length 156 [2024-05-30 16:35:08,170 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:08,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 16:35:08,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:08,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash -577275411, now seen corresponding path program 2 times [2024-05-30 16:35:08,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:08,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653741915] [2024-05-30 16:35:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-05-30 16:35:08,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:08,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653741915] [2024-05-30 16:35:08,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653741915] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:35:08,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:35:08,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 16:35:08,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620333191] [2024-05-30 16:35:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:35:08,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 16:35:08,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:08,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 16:35:08,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-05-30 16:35:08,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,406 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:08,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 16:35:08,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:08,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,406 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:08,514 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,515 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,515 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,524 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,525 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,525 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,544 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,544 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,544 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,554 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,554 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,554 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,561 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 293 states. [2024-05-30 16:35:08,561 INFO L212 cStratifiedReduction]: Copied states 4 times. [2024-05-30 16:35:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:08,563 INFO L78 Accepts]: Start accepts. Automaton has currently 299 states, but on-demand construction may add more states Word has length 164 [2024-05-30 16:35:08,563 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:08,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 16:35:08,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:08,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1486367162, now seen corresponding path program 1 times [2024-05-30 16:35:08,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:08,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723508168] [2024-05-30 16:35:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:08,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-30 16:35:08,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:08,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723508168] [2024-05-30 16:35:08,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723508168] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:35:08,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:35:08,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 16:35:08,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095708344] [2024-05-30 16:35:08,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:35:08,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 16:35:08,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:08,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 16:35:08,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-05-30 16:35:08,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,776 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:08,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 16:35:08,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:08,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:08,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,776 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:08,896 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,896 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,896 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,902 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,902 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,902 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,913 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,914 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,914 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,921 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,921 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,921 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,939 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,939 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,939 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,945 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,946 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,946 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,960 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,960 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,960 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,968 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:08,968 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:08,968 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:08,975 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 337 states. [2024-05-30 16:35:08,975 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-30 16:35:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:08,975 INFO L78 Accepts]: Start accepts. Automaton has currently 338 states, but on-demand construction may add more states Word has length 172 [2024-05-30 16:35:08,977 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:08,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-30 16:35:08,977 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:08,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash -330422142, now seen corresponding path program 1 times [2024-05-30 16:35:08,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:08,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570299606] [2024-05-30 16:35:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 16:35:09,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:09,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570299606] [2024-05-30 16:35:09,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570299606] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:09,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154578591] [2024-05-30 16:35:09,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:09,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:09,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:09,222 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 16:35:09,246 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 16:35:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:09,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 9 conjunts are in the unsatisfiable core [2024-05-30 16:35:09,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 16:35:09,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:35:09,917 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 16:35:09,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154578591] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:35:09,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:35:09,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2024-05-30 16:35:09,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797714749] [2024-05-30 16:35:09,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:35:09,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-05-30 16:35:09,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:09,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-05-30 16:35:09,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2024-05-30 16:35:09,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:09,920 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:09,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.5) internal successors, (372), 24 states have internal predecessors, (372), 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 16:35:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:09,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:09,921 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:10,221 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:10,222 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:10,222 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:10,230 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:10,230 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:10,230 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:10,244 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:10,245 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:10,245 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:10,253 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:10,253 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:10,254 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:10,272 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:10,273 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:10,273 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:10,283 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:10,284 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:10,284 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:10,301 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:10,301 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:10,301 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:10,310 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:10,311 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:10,312 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:10,327 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 346 states. [2024-05-30 16:35:10,327 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-30 16:35:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:10,328 INFO L78 Accepts]: Start accepts. Automaton has currently 347 states, but on-demand construction may add more states Word has length 180 [2024-05-30 16:35:10,329 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:10,340 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 16:35:10,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:10,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:10,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:10,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1764983106, now seen corresponding path program 2 times [2024-05-30 16:35:10,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:10,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559087727] [2024-05-30 16:35:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:10,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 16:35:10,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:10,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559087727] [2024-05-30 16:35:10,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559087727] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:10,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308488788] [2024-05-30 16:35:10,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 16:35:10,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:10,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:10,763 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 16:35:10,768 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 16:35:10,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-30 16:35:10,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:35:10,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 7 conjunts are in the unsatisfiable core [2024-05-30 16:35:10,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-05-30 16:35:11,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:35:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-05-30 16:35:11,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308488788] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:35:11,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:35:11,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2024-05-30 16:35:11,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953350885] [2024-05-30 16:35:11,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:35:11,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-05-30 16:35:11,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:11,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-30 16:35:11,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-05-30 16:35:11,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:11,308 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:11,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 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 16:35:11,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:11,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:11,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:11,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:11,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:11,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:11,309 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:11,573 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,573 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:11,573 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:35:11,583 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,583 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,583 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,592 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,592 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,592 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,599 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,600 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,600 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,614 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,615 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:11,615 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,619 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,619 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,620 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,627 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,627 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:11,627 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,632 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,632 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,632 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,642 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,643 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,643 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,650 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:11,650 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,650 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:11,661 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 428 states. [2024-05-30 16:35:11,661 INFO L212 cStratifiedReduction]: Copied states 18 times. [2024-05-30 16:35:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:11,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:11,662 INFO L78 Accepts]: Start accepts. Automaton has currently 433 states, but on-demand construction may add more states Word has length 188 [2024-05-30 16:35:11,662 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:11,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-05-30 16:35:11,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:11,870 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:11,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:11,871 INFO L85 PathProgramCache]: Analyzing trace with hash 893004209, now seen corresponding path program 3 times [2024-05-30 16:35:11,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67267287] [2024-05-30 16:35:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-30 16:35:12,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:12,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67267287] [2024-05-30 16:35:12,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67267287] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:12,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850675850] [2024-05-30 16:35:12,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-30 16:35:12,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:12,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:12,110 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 16:35:12,115 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 16:35:12,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-05-30 16:35:12,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:35:12,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 15 conjunts are in the unsatisfiable core [2024-05-30 16:35:12,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:12,726 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-30 16:35:12,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:35:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-30 16:35:12,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850675850] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:35:12,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:35:12,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 18 [2024-05-30 16:35:12,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497605307] [2024-05-30 16:35:12,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:35:12,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-05-30 16:35:12,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:12,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-05-30 16:35:12,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-05-30 16:35:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:12,941 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:12,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.444444444444445) internal successors, (206), 18 states have internal predecessors, (206), 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 16:35:12,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:12,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:12,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:12,942 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:13,139 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:13,139 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:13,139 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:13,146 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:13,146 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:13,146 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:13,162 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:13,163 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:13,163 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:13,167 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:13,167 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:13,167 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:13,187 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:13,188 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:13,188 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:13,216 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:13,216 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:13,216 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~n~0, ULTIMATE.start_create_fresh_int_array_#t~post22#1, ~start~0] [2024-05-30 16:35:13,234 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 427 states. [2024-05-30 16:35:13,234 INFO L212 cStratifiedReduction]: Copied states 14 times. [2024-05-30 16:35:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:35:13,235 INFO L78 Accepts]: Start accepts. Automaton has currently 448 states, but on-demand construction may add more states Word has length 207 [2024-05-30 16:35:13,236 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:13,244 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 16:35:13,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:13,441 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:13,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:13,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1599387920, now seen corresponding path program 4 times [2024-05-30 16:35:13,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:13,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221652455] [2024-05-30 16:35:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:13,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-05-30 16:35:13,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:13,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221652455] [2024-05-30 16:35:13,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221652455] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:13,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492901856] [2024-05-30 16:35:13,807 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-30 16:35:13,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:13,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:13,813 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 16:35:13,828 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 16:35:13,934 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-30 16:35:13,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:35:13,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 12 conjunts are in the unsatisfiable core [2024-05-30 16:35:13,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-05-30 16:35:14,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:35:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-05-30 16:35:14,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492901856] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:35:14,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:35:14,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 35 [2024-05-30 16:35:14,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695511791] [2024-05-30 16:35:14,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:35:14,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-05-30 16:35:14,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:35:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-05-30 16:35:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1021, Unknown=0, NotChecked=0, Total=1190 [2024-05-30 16:35:14,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:14,719 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:35:14,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 12.314285714285715) internal successors, (431), 35 states have internal predecessors, (431), 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 16:35:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:14,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:35:14,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:14,720 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:35:15,629 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:15,629 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:15,629 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,633 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:15,633 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,633 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,647 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:15,648 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:35:15,648 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,652 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:15,652 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,652 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,667 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:15,668 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,668 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,678 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:35:15,679 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,679 INFO L395 cStratifiedReduction]: Actual level: [~end~0, thread2Thread1of1ForFork0_~cond~0#1, ~N~0, ~i~0, ~start~0] [2024-05-30 16:35:15,704 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 445 states. [2024-05-30 16:35:15,705 INFO L212 cStratifiedReduction]: Copied states 14 times. [2024-05-30 16:35:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:35:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:35:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:35:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 16:35:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-05-30 16:35:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:35:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-30 16:35:15,706 INFO L78 Accepts]: Start accepts. Automaton has currently 466 states, but on-demand construction may add more states Word has length 223 [2024-05-30 16:35:15,707 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:35:15,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-30 16:35:15,916 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 16:35:15,916 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:35:15,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:35:15,917 INFO L85 PathProgramCache]: Analyzing trace with hash 657837115, now seen corresponding path program 5 times [2024-05-30 16:35:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:35:15,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070889463] [2024-05-30 16:35:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:35:15,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:35:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:35:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-05-30 16:35:20,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:35:20,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070889463] [2024-05-30 16:35:20,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070889463] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:35:20,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774814634] [2024-05-30 16:35:20,051 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-30 16:35:20,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:35:20,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:35:20,053 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 16:35:20,076 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 16:35:20,187 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-05-30 16:35:20,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:35:20,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 49 conjunts are in the unsatisfiable core [2024-05-30 16:35:20,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:35:31,639 INFO L349 Elim1Store]: treesize reduction 62, result has 70.6 percent of original size [2024-05-30 16:35:31,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 121 treesize of output 170 [2024-05-30 16:35:31,795 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 3 proven. 44 refuted. 1 times theorem prover too weak. 54 trivial. 0 not checked. [2024-05-30 16:35:31,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:36:02,360 WARN L293 SmtUtils]: Spent 26.70s on a formula simplification. DAG size of input: 1302 DAG size of output: 1280 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-05-30 16:36:02,361 INFO L349 Elim1Store]: treesize reduction 60, result has 98.8 percent of original size [2024-05-30 16:36:02,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 481 treesize of output 5127 [2024-05-30 16:39:21,124 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 101 [2024-05-30 16:39:21,124 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-05-30 16:39:21,132 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-30 16:39:21,142 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 16:39:21,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:39:21,343 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:268) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:410) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:394) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.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.SimplifyDDA2.simplify(SimplifyDDA2.java:500) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) 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.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) 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$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2024-05-30 16:39:21,347 INFO L158 Benchmark]: Toolchain (without parser) took 255519.97ms. Allocated memory was 177.2MB in the beginning and 843.1MB in the end (delta: 665.8MB). Free memory was 112.8MB in the beginning and 720.5MB in the end (delta: -607.6MB). Peak memory consumption was 492.8MB. Max. memory is 8.0GB. [2024-05-30 16:39:21,348 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory was 119.3MB in the beginning and 119.1MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 8.0GB. [2024-05-30 16:39:21,348 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.50ms. Allocated memory is still 177.2MB. Free memory was 112.7MB in the beginning and 100.3MB in the end (delta: 12.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-05-30 16:39:21,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.25ms. Allocated memory is still 177.2MB. Free memory was 100.3MB in the beginning and 152.3MB in the end (delta: -52.0MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. [2024-05-30 16:39:21,348 INFO L158 Benchmark]: Boogie Preprocessor took 36.57ms. Allocated memory is still 177.2MB. Free memory was 152.3MB in the beginning and 150.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-30 16:39:21,349 INFO L158 Benchmark]: RCFGBuilder took 449.37ms. Allocated memory is still 177.2MB. Free memory was 150.2MB in the beginning and 124.5MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2024-05-30 16:39:21,350 INFO L158 Benchmark]: TraceAbstraction took 254774.09ms. Allocated memory was 177.2MB in the beginning and 843.1MB in the end (delta: 665.8MB). Free memory was 122.9MB in the beginning and 720.5MB in the end (delta: -597.5MB). Peak memory consumption was 501.4MB. Max. memory is 8.0GB. [2024-05-30 16:39:21,352 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory was 119.3MB in the beginning and 119.1MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.50ms. Allocated memory is still 177.2MB. Free memory was 112.7MB in the beginning and 100.3MB in the end (delta: 12.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.25ms. Allocated memory is still 177.2MB. Free memory was 100.3MB in the beginning and 152.3MB in the end (delta: -52.0MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.57ms. Allocated memory is still 177.2MB. Free memory was 152.3MB in the beginning and 150.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 449.37ms. Allocated memory is still 177.2MB. Free memory was 150.2MB in the beginning and 124.5MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 254774.09ms. Allocated memory was 177.2MB in the beginning and 843.1MB in the end (delta: 665.8MB). Free memory was 122.9MB in the beginning and 720.5MB in the end (delta: -597.5MB). Peak memory consumption was 501.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-05-30 16:39:21,363 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 Received shutdown request...