/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-counter-fun.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m [2024-05-03 04:58:58,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-03 04:58:58,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-03 04:58:58,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-03 04:58:58,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-03 04:58:58,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-03 04:58:58,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-03 04:58:58,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-03 04:58:58,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-03 04:58:58,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-03 04:58:58,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-03 04:58:58,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-03 04:58:58,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-03 04:58:58,945 INFO L153 SettingsManager]: * Use SBE=true [2024-05-03 04:58:58,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-03 04:58:58,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-03 04:58:58,946 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-03 04:58:58,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-03 04:58:58,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-03 04:58:58,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-03 04:58:58,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-03 04:58:58,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-03 04:58:58,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-03 04:58:58,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-03 04:58:58,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-03 04:58:58,952 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-03 04:58:58,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-03 04:58:58,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-03 04:58:58,952 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-03 04:58:58,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-03 04:58:58,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 04:58:58,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-03 04:58:58,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-03 04:58:58,953 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-03 04:58:58,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-03 04:58:58,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-03 04:58:58,954 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-03 04:58:58,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-03 04:58:58,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-03 04:58:58,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-03 04:58:58,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-03 04:58:58,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-03 04:58:59,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-03 04:58:59,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-03 04:58:59,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-03 04:58:59,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-03 04:58:59,136 INFO L274 PluginConnector]: CDTParser initialized [2024-05-03 04:58:59,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-05-03 04:59:00,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-03 04:59:00,230 INFO L384 CDTParser]: Found 1 translation units. [2024-05-03 04:59:00,230 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-05-03 04:59:00,236 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4db155ac5/79e170eaf75941dba43b49ac6d642ac8/FLAG1952a6cc5 [2024-05-03 04:59:00,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4db155ac5/79e170eaf75941dba43b49ac6d642ac8 [2024-05-03 04:59:00,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-03 04:59:00,255 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-03 04:59:00,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-03 04:59:00,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-03 04:59:00,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-03 04:59:00,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16431f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00, skipping insertion in model container [2024-05-03 04:59:00,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,283 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-03 04:59:00,447 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-counter-fun.wvr.c[2681,2694] [2024-05-03 04:59:00,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 04:59:00,460 INFO L202 MainTranslator]: Completed pre-run [2024-05-03 04:59:00,488 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-counter-fun.wvr.c[2681,2694] [2024-05-03 04:59:00,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 04:59:00,535 INFO L206 MainTranslator]: Completed translation [2024-05-03 04:59:00,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00 WrapperNode [2024-05-03 04:59:00,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-03 04:59:00,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-03 04:59:00,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-03 04:59:00,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-03 04:59:00,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,575 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 201 [2024-05-03 04:59:00,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-03 04:59:00,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-03 04:59:00,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-03 04:59:00,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-03 04:59:00,585 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-03 04:59:00,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-03 04:59:00,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-03 04:59:00,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-03 04:59:00,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (1/1) ... [2024-05-03 04:59:00,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 04:59:00,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:59:00,647 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) [2024-05-03 04:59:00,663 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 [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-03 04:59:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-03 04:59:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-03 04:59:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-03 04:59:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-03 04:59:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-03 04:59:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-03 04:59:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-03 04:59:00,700 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-03 04:59:00,801 INFO L241 CfgBuilder]: Building ICFG [2024-05-03 04:59:00,803 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-03 04:59:00,998 INFO L282 CfgBuilder]: Performing block encoding [2024-05-03 04:59:01,103 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-03 04:59:01,103 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2024-05-03 04:59:01,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 04:59:01 BoogieIcfgContainer [2024-05-03 04:59:01,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-03 04:59:01,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-03 04:59:01,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-03 04:59:01,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-03 04:59:01,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 04:59:00" (1/3) ... [2024-05-03 04:59:01,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50efe771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 04:59:01, skipping insertion in model container [2024-05-03 04:59:01,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 04:59:00" (2/3) ... [2024-05-03 04:59:01,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50efe771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 04:59:01, skipping insertion in model container [2024-05-03 04:59:01,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 04:59:01" (3/3) ... [2024-05-03 04:59:01,111 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2024-05-03 04:59:01,121 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-03 04:59:01,128 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-03 04:59:01,128 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-03 04:59:01,128 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-03 04:59:01,185 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-03 04:59:01,214 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 04:59:01,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 04:59:01,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:59:01,220 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) [2024-05-03 04:59:01,229 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 [2024-05-03 04:59:01,252 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 04:59:01,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-03 04:59:01,263 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;@660b50c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 04:59:01,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 04:59:01,275 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:59:01,367 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:01,368 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:01,368 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:01,396 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:01,396 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:01,396 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:01,414 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:01,415 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:01,415 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:01,561 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:01,561 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:01,562 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:01,578 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 202 states. [2024-05-03 04:59:01,578 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 04:59:01,581 INFO L78 Accepts]: Start accepts. Automaton has currently 211 states, but on-demand construction may add more states Word has length 124 [2024-05-03 04:59:01,583 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:59:01,583 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:59:01,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:59:01,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1892829697, now seen corresponding path program 1 times [2024-05-03 04:59:01,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:59:01,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031342881] [2024-05-03 04:59:01,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:01,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:59:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 04:59:01,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:59:01,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031342881] [2024-05-03 04:59:01,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031342881] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 04:59:01,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 04:59:01,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-03 04:59:01,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700007393] [2024-05-03 04:59:01,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 04:59:01,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-03 04:59:01,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:59:01,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-03 04:59:01,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-03 04:59:01,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:01,903 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:59:01,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2024-05-03 04:59:01,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:01,906 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:59:01,978 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:01,978 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:01,979 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:01,996 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:01,996 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:01,996 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:02,016 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:02,017 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:02,017 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:02,087 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:02,087 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:02,087 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:02,093 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 215 states. [2024-05-03 04:59:02,093 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 04:59:02,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:02,093 INFO L78 Accepts]: Start accepts. Automaton has currently 224 states, but on-demand construction may add more states Word has length 119 [2024-05-03 04:59:02,095 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:59:02,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-03 04:59:02,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:59:02,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:59:02,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1556812090, now seen corresponding path program 1 times [2024-05-03 04:59:02,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:59:02,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550890978] [2024-05-03 04:59:02,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:02,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:59:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 04:59:02,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:59:02,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550890978] [2024-05-03 04:59:02,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550890978] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 04:59:02,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 04:59:02,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-03 04:59:02,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383972304] [2024-05-03 04:59:02,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 04:59:02,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-03 04:59:02,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:59:02,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-03 04:59:02,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-05-03 04:59:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:02,462 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:59:02,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-05-03 04:59:02,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:02,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:02,463 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:59:02,620 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:02,621 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:02,621 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:02,638 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 193 states. [2024-05-03 04:59:02,638 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 04:59:02,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:02,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:02,639 INFO L78 Accepts]: Start accepts. Automaton has currently 202 states, but on-demand construction may add more states Word has length 124 [2024-05-03 04:59:02,642 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:59:02,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-03 04:59:02,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:59:02,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:59:02,643 INFO L85 PathProgramCache]: Analyzing trace with hash -785482149, now seen corresponding path program 1 times [2024-05-03 04:59:02,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:59:02,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417876644] [2024-05-03 04:59:02,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:02,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:59:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:02,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 04:59:02,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:59:02,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417876644] [2024-05-03 04:59:02,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417876644] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 04:59:02,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71207659] [2024-05-03 04:59:02,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:02,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:59:02,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:59:02,854 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) [2024-05-03 04:59:02,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-03 04:59:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:02,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-03 04:59:02,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 04:59:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 04:59:03,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-03 04:59:03,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71207659] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 04:59:03,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-03 04:59:03,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-05-03 04:59:03,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378505180] [2024-05-03 04:59:03,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 04:59:03,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-03 04:59:03,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:59:03,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-03 04:59:03,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-05-03 04:59:03,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:03,156 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:59:03,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2024-05-03 04:59:03,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:03,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:03,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:03,157 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:59:03,304 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:03,304 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:03,304 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:03,313 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 201 states. [2024-05-03 04:59:03,314 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 04:59:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:03,314 INFO L78 Accepts]: Start accepts. Automaton has currently 210 states, but on-demand construction may add more states Word has length 132 [2024-05-03 04:59:03,316 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:59:03,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-03 04:59:03,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-05-03 04:59:03,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:59:03,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:59:03,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1488475831, now seen corresponding path program 1 times [2024-05-03 04:59:03,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:59:03,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030769948] [2024-05-03 04:59:03,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:03,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:59:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-03 04:59:03,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:59:03,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030769948] [2024-05-03 04:59:03,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030769948] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 04:59:03,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088618531] [2024-05-03 04:59:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:03,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:59:03,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:59:03,649 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) [2024-05-03 04:59:03,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-03 04:59:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:03,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-03 04:59:03,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 04:59:03,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-03 04:59:03,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 04:59:03,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-03 04:59:03,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088618531] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 04:59:03,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 04:59:03,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-05-03 04:59:03,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356917353] [2024-05-03 04:59:03,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 04:59:03,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-05-03 04:59:03,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:59:03,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-05-03 04:59:03,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-05-03 04:59:03,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:03,852 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:59:03,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 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) [2024-05-03 04:59:03,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:03,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:03,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:03,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:03,853 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:59:03,939 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:03,939 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:03,939 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 04:59:03,953 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:03,953 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:03,954 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,025 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:04,026 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,026 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,039 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 243 states. [2024-05-03 04:59:04,039 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 04:59:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-03 04:59:04,040 INFO L78 Accepts]: Start accepts. Automaton has currently 256 states, but on-demand construction may add more states Word has length 137 [2024-05-03 04:59:04,041 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:59:04,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-03 04:59:04,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:59:04,247 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:59:04,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:59:04,247 INFO L85 PathProgramCache]: Analyzing trace with hash -55598819, now seen corresponding path program 1 times [2024-05-03 04:59:04,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:59:04,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177225564] [2024-05-03 04:59:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:04,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:59:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-03 04:59:04,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:59:04,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177225564] [2024-05-03 04:59:04,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177225564] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 04:59:04,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 04:59:04,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-03 04:59:04,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311517601] [2024-05-03 04:59:04,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 04:59:04,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-03 04:59:04,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:59:04,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-03 04:59:04,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-05-03 04:59:04,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:04,416 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:59:04,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-05-03 04:59:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-03 04:59:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:04,416 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:59:04,489 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:04,490 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:04,492 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,501 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:04,501 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,501 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,514 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:04,514 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,514 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,559 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:04,559 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,559 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:04,564 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 259 states. [2024-05-03 04:59:04,564 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-03 04:59:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-03 04:59:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:59:04,565 INFO L78 Accepts]: Start accepts. Automaton has currently 264 states, but on-demand construction may add more states Word has length 145 [2024-05-03 04:59:04,565 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:59:04,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-03 04:59:04,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:59:04,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:59:04,566 INFO L85 PathProgramCache]: Analyzing trace with hash 822241074, now seen corresponding path program 1 times [2024-05-03 04:59:04,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:59:04,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474642149] [2024-05-03 04:59:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:04,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:59:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-03 04:59:04,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:59:04,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474642149] [2024-05-03 04:59:04,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474642149] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 04:59:04,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242412667] [2024-05-03 04:59:04,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:04,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:59:04,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:59:04,891 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) [2024-05-03 04:59:04,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-03 04:59:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:04,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-03 04:59:04,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 04:59:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-03 04:59:05,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 04:59:05,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2024-05-03 04:59:05,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-03 04:59:05,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242412667] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 04:59:05,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 04:59:05,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 20 [2024-05-03 04:59:05,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771986696] [2024-05-03 04:59:05,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 04:59:05,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-05-03 04:59:05,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:59:05,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-05-03 04:59:05,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-05-03 04:59:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:05,385 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:59:05,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.9) internal successors, (198), 20 states have internal predecessors, (198), 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) [2024-05-03 04:59:05,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:05,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:05,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:05,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-03 04:59:05,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:59:05,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:05,385 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:59:05,719 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:05,719 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:05,720 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:05,741 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:05,742 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:05,742 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:05,759 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 247 states. [2024-05-03 04:59:05,759 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-03 04:59:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-03 04:59:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:59:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-03 04:59:05,760 INFO L78 Accepts]: Start accepts. Automaton has currently 252 states, but on-demand construction may add more states Word has length 158 [2024-05-03 04:59:05,761 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:59:05,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-03 04:59:05,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:59:05,969 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:59:05,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:59:05,969 INFO L85 PathProgramCache]: Analyzing trace with hash -616835449, now seen corresponding path program 2 times [2024-05-03 04:59:05,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:59:05,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102642600] [2024-05-03 04:59:05,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:05,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:59:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:06,108 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-03 04:59:06,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:59:06,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102642600] [2024-05-03 04:59:06,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102642600] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 04:59:06,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683303755] [2024-05-03 04:59:06,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 04:59:06,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:59:06,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:59:06,126 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) [2024-05-03 04:59:06,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-03 04:59:06,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-03 04:59:06,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 04:59:06,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 8 conjunts are in the unsatisfiable core [2024-05-03 04:59:06,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 04:59:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-03 04:59:06,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 04:59:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-03 04:59:06,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683303755] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 04:59:06,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 04:59:06,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-05-03 04:59:06,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138003875] [2024-05-03 04:59:06,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 04:59:06,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-03 04:59:06,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:59:06,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-03 04:59:06,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-05-03 04:59:06,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:06,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:59:06,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.4375) internal successors, (167), 16 states have internal predecessors, (167), 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) [2024-05-03 04:59:06,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:06,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:06,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:06,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-03 04:59:06,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:59:06,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-03 04:59:06,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:06,340 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:59:06,553 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:06,553 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:59:06,553 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:06,576 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:59:06,576 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:06,576 INFO L370 cStratifiedReduction]: Actual level: [~N~0, thread2Thread1of1ForFork0_~i~1#1, thread1Thread1of1ForFork1_~i~0#1] [2024-05-03 04:59:06,612 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 259 states. [2024-05-03 04:59:06,612 INFO L212 cStratifiedReduction]: Copied states 8 times. [2024-05-03 04:59:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:59:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-03 04:59:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-03 04:59:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-03 04:59:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:59:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-03 04:59:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-03 04:59:06,613 INFO L78 Accepts]: Start accepts. Automaton has currently 269 states, but on-demand construction may add more states Word has length 163 [2024-05-03 04:59:06,614 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:59:06,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-03 04:59:06,819 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,SelfDestructingSolverStorable6 [2024-05-03 04:59:06,820 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:59:06,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:59:06,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1427901087, now seen corresponding path program 3 times [2024-05-03 04:59:06,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:59:06,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477328622] [2024-05-03 04:59:06,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:59:06,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:59:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:59:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-03 04:59:07,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:59:07,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477328622] [2024-05-03 04:59:07,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477328622] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 04:59:07,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110575005] [2024-05-03 04:59:07,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-03 04:59:07,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:59:07,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:59:07,512 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) [2024-05-03 04:59:07,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-03 04:59:07,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-05-03 04:59:07,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 04:59:07,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 44 conjunts are in the unsatisfiable core [2024-05-03 04:59:07,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 04:59:07,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-05-03 04:59:08,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-03 04:59:08,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-03 04:59:08,662 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-05-03 04:59:08,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 23 [2024-05-03 04:59:08,674 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-03 04:59:08,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 04:59:09,515 WARN L854 $PredicateComparison]: unable to prove that (forall ((~counter~0 Int) (v_ArrVal_197 (Array Int Int)) (v_ArrVal_196 (Array Int Int)) (v_~counter~0_135 Int) (~f~0.offset Int) (~f~0.base Int) (v_subst_1 Int)) (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_196) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_197))) (let ((.cse3 (select .cse4 ~f~0.base))) (let ((.cse0 (select .cse4 c_~f_inv~0.base)) (.cse2 (select .cse3 (+ (* ~counter~0 4) ~f~0.offset))) (.cse1 (select .cse3 (+ (* v_~counter~0_135 4) ~f~0.offset)))) (or (not (= v_~counter~0_135 (select .cse0 (+ (* 4 .cse1) c_~f_inv~0.offset)))) (< .cse2 v_~counter~0_135) (= (select .cse0 (+ (* 4 v_subst_1) c_~f_inv~0.offset)) 0) (< c_~n_inv~0 (+ .cse2 1)) (< c_~n_inv~0 (+ .cse1 1)) (< c_~n_inv~0 (+ v_subst_1 1)) (< v_subst_1 0) (< .cse1 0) (< v_~counter~0_135 0)))))) is different from false [2024-05-03 04:59:09,962 WARN L854 $PredicateComparison]: unable to prove that (forall ((~counter~0 Int) (v_ArrVal_197 (Array Int Int)) (v_ArrVal_196 (Array Int Int)) (v_~counter~0_135 Int) (~f~0.offset Int) (~f~0.base Int) (v_subst_1 Int)) (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_196) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_197))) (let ((.cse3 (select .cse4 ~f~0.base))) (let ((.cse0 (select .cse3 (+ (* ~counter~0 4) ~f~0.offset))) (.cse2 (select .cse4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (.cse1 (select .cse3 (+ (* v_~counter~0_135 4) ~f~0.offset)))) (or (< .cse0 v_~counter~0_135) (< c_~n_inv~0 (+ .cse0 1)) (< c_~n_inv~0 (+ .cse1 1)) (< c_~n_inv~0 (+ v_subst_1 1)) (= (select .cse2 (+ (* 4 v_subst_1) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 0) (< v_subst_1 0) (< .cse1 0) (not (= v_~counter~0_135 (select .cse2 (+ (* 4 .cse1) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (< v_~counter~0_135 0)))))) is different from false [2024-05-03 04:59:12,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 04:59:12,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 206 treesize of output 134 [2024-05-03 04:59:12,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 04:59:12,238 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 774 treesize of output 932 [2024-05-03 04:59:12,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 04:59:12,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 780 treesize of output 816 [2024-05-03 04:59:12,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-03 04:59:12,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 574 treesize of output 661 [2024-05-03 05:02:42,367 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") [2024-05-03 05:02:42,372 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-03 05:02:42,373 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 [2024-05-03 05:02:42,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-03 05:02:42,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:02:42,574 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 [2024-05-03 05:02:42,588 INFO L158 Benchmark]: Toolchain (without parser) took 222332.61ms. Allocated memory was 157.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 85.9MB in the beginning and 896.1MB in the end (delta: -810.2MB). Peak memory consumption was 832.9MB. Max. memory is 8.0GB. [2024-05-03 05:02:42,588 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 157.3MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-03 05:02:42,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.51ms. Allocated memory was 157.3MB in the beginning and 253.8MB in the end (delta: 96.5MB). Free memory was 85.6MB in the beginning and 224.7MB in the end (delta: -139.0MB). Peak memory consumption was 22.8MB. Max. memory is 8.0GB. [2024-05-03 05:02:42,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.64ms. Allocated memory is still 253.8MB. Free memory was 224.6MB in the beginning and 222.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 05:02:42,589 INFO L158 Benchmark]: Boogie Preprocessor took 34.97ms. Allocated memory is still 253.8MB. Free memory was 222.4MB in the beginning and 220.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 05:02:42,589 INFO L158 Benchmark]: RCFGBuilder took 484.37ms. Allocated memory is still 253.8MB. Free memory was 220.5MB in the beginning and 192.4MB in the end (delta: 28.1MB). Peak memory consumption was 31.1MB. Max. memory is 8.0GB. [2024-05-03 05:02:42,589 INFO L158 Benchmark]: TraceAbstraction took 221481.73ms. Allocated memory was 253.8MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 190.8MB in the beginning and 896.1MB in the end (delta: -705.3MB). Peak memory consumption was 840.8MB. Max. memory is 8.0GB. [2024-05-03 05:02:42,590 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 157.3MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 278.51ms. Allocated memory was 157.3MB in the beginning and 253.8MB in the end (delta: 96.5MB). Free memory was 85.6MB in the beginning and 224.7MB in the end (delta: -139.0MB). Peak memory consumption was 22.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.64ms. Allocated memory is still 253.8MB. Free memory was 224.6MB in the beginning and 222.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.97ms. Allocated memory is still 253.8MB. Free memory was 222.4MB in the beginning and 220.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 484.37ms. Allocated memory is still 253.8MB. Free memory was 220.5MB in the beginning and 192.4MB in the end (delta: 28.1MB). Peak memory consumption was 31.1MB. Max. memory is 8.0GB. * TraceAbstraction took 221481.73ms. Allocated memory was 253.8MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 190.8MB in the beginning and 896.1MB in the end (delta: -705.3MB). Peak memory consumption was 840.8MB. 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. [2024-05-03 05:02:42,605 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...