/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 01:59:16,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 01:59:16,647 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-01-26 01:59:16,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 01:59:16,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 01:59:16,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-01-26 01:59:16,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 01:59:16,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 01:59:16,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 01:59:16,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 01:59:16,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 01:59:16,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 01:59:16,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 01:59:16,665 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 01:59:16,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 01:59:16,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 01:59:16,666 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 01:59:16,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 01:59:16,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 01:59:16,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 01:59:16,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 01:59:16,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 01:59:16,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 01:59:16,668 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 01:59:16,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 01:59:16,668 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 01:59:16,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 01:59:16,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 01:59:16,669 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 01:59:16,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 01:59:16,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:59:16,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 01:59:16,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 01:59:16,670 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-01-26 01:59:16,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-01-26 01:59:16,671 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 01:59:16,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 01:59:16,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 01:59:16,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 01:59:16,671 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 01:59:16,672 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-01-26 01:59:16,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-01-26 01:59:16,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 01:59:16,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 01:59:16,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 01:59:16,874 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 01:59:16,875 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 01:59:16,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-01-26 01:59:17,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 01:59:17,950 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 01:59:17,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-01-26 01:59:17,955 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/77bab8d0c/60ad84ce0e32494ca37e3936fbeabe05/FLAG5d045f523 [2024-01-26 01:59:17,964 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/77bab8d0c/60ad84ce0e32494ca37e3936fbeabe05 [2024-01-26 01:59:17,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 01:59:17,967 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 01:59:17,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 01:59:17,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 01:59:17,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 01:59:17,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:59:17" (1/1) ... [2024-01-26 01:59:17,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d5a303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:17, skipping insertion in model container [2024-01-26 01:59:17,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:59:17" (1/1) ... [2024-01-26 01:59:17,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 01:59:18,098 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-proofs-counter-add-4-semi-Q67.wvr.c[2663,2676] [2024-01-26 01:59:18,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:59:18,106 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 01:59:18,123 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-proofs-counter-add-4-semi-Q67.wvr.c[2663,2676] [2024-01-26 01:59:18,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:59:18,136 INFO L206 MainTranslator]: Completed translation [2024-01-26 01:59:18,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18 WrapperNode [2024-01-26 01:59:18,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 01:59:18,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 01:59:18,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 01:59:18,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 01:59:18,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,165 INFO L138 Inliner]: procedures = 22, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 138 [2024-01-26 01:59:18,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 01:59:18,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 01:59:18,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 01:59:18,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 01:59:18,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 01:59:18,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 01:59:18,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 01:59:18,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 01:59:18,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (1/1) ... [2024-01-26 01:59:18,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:59:18,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:18,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-01-26 01:59:18,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-01-26 01:59:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 01:59:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 01:59:18,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 01:59:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 01:59:18,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 01:59:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 01:59:18,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 01:59:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-26 01:59:18,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-26 01:59:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 01:59:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 01:59:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 01:59:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 01:59:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 01:59:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 01:59:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 01:59:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 01:59:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 01:59:18,242 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 01:59:18,334 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 01:59:18,335 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 01:59:18,508 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 01:59:18,554 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 01:59:18,554 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-26 01:59:18,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:59:18 BoogieIcfgContainer [2024-01-26 01:59:18,554 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 01:59:18,556 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 01:59:18,556 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 01:59:18,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 01:59:18,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 01:59:17" (1/3) ... [2024-01-26 01:59:18,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3f2403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:59:18, skipping insertion in model container [2024-01-26 01:59:18,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:18" (2/3) ... [2024-01-26 01:59:18,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3f2403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:59:18, skipping insertion in model container [2024-01-26 01:59:18,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:59:18" (3/3) ... [2024-01-26 01:59:18,560 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-01-26 01:59:18,565 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 01:59:18,572 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 01:59:18,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 01:59:18,572 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 01:59:18,614 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-26 01:59:18,646 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:59:18,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 01:59:18,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:18,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-01-26 01:59:18,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-01-26 01:59:18,693 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-01-26 01:59:18,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 01:59:18,713 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;@329f9947, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:59:18,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2024-01-26 01:59:19,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:19,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:19,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1596628181, now seen corresponding path program 1 times [2024-01-26 01:59:19,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:19,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651640768] [2024-01-26 01:59:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:19,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:19,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:19,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651640768] [2024-01-26 01:59:19,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651640768] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:59:19,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:59:19,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 01:59:19,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422880479] [2024-01-26 01:59:19,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:59:19,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 01:59:19,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:19,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 01:59:19,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 01:59:19,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:19,242 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:19,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:19,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:19,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 01:59:19,381 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:19,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2092921500, now seen corresponding path program 1 times [2024-01-26 01:59:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:19,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124692110] [2024-01-26 01:59:19,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:19,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:19,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:19,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124692110] [2024-01-26 01:59:19,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124692110] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:19,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935640250] [2024-01-26 01:59:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:19,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:19,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:19,995 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) [2024-01-26 01:59:20,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-26 01:59:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:20,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-26 01:59:20,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:20,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:20,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:20,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935640250] provided 1 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:20,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-01-26 01:59:20,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 8] total 22 [2024-01-26 01:59:20,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959980175] [2024-01-26 01:59:20,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:59:20,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-26 01:59:20,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:20,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-26 01:59:20,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2024-01-26 01:59:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:20,721 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:20,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:20,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:20,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-26 01:59:20,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:21,084 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,SelfDestructingSolverStorable1 [2024-01-26 01:59:21,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:21,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:21,085 INFO L85 PathProgramCache]: Analyzing trace with hash 589685980, now seen corresponding path program 1 times [2024-01-26 01:59:21,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:21,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944309639] [2024-01-26 01:59:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:21,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-26 01:59:21,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:21,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944309639] [2024-01-26 01:59:21,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944309639] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:21,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142674938] [2024-01-26 01:59:21,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:21,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:21,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:21,462 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) [2024-01-26 01:59:21,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-26 01:59:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:21,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjunts are in the unsatisfiable core [2024-01-26 01:59:21,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:21,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:22,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142674938] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:22,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:22,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 26 [2024-01-26 01:59:22,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848882519] [2024-01-26 01:59:22,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:22,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-01-26 01:59:22,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:22,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-01-26 01:59:22,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2024-01-26 01:59:22,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:22,111 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:22,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.576923076923077) internal successors, (275), 26 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:22,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:22,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-01-26 01:59:22,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:22,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:22,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-26 01:59:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-01-26 01:59:22,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-01-26 01:59:22,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:22,781 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:22,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:22,781 INFO L85 PathProgramCache]: Analyzing trace with hash 826439088, now seen corresponding path program 1 times [2024-01-26 01:59:22,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:22,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113610558] [2024-01-26 01:59:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:22,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 01:59:23,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:23,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113610558] [2024-01-26 01:59:23,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113610558] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:23,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697319619] [2024-01-26 01:59:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:23,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:23,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:23,128 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) [2024-01-26 01:59:23,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-26 01:59:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:23,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 13 conjunts are in the unsatisfiable core [2024-01-26 01:59:23,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:23,535 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 01:59:23,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 01:59:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697319619] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:23,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:23,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 32 [2024-01-26 01:59:23,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643216535] [2024-01-26 01:59:23,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:23,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-01-26 01:59:23,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:23,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-01-26 01:59:23,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=848, Unknown=0, NotChecked=0, Total=992 [2024-01-26 01:59:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:23,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:23,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.15625) internal successors, (293), 32 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:23,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:23,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-01-26 01:59:23,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-01-26 01:59:23,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-26 01:59:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-01-26 01:59:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-01-26 01:59:24,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:24,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:24,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:24,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash 384966707, now seen corresponding path program 2 times [2024-01-26 01:59:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:24,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989538844] [2024-01-26 01:59:24,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:24,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-01-26 01:59:24,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:24,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989538844] [2024-01-26 01:59:24,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989538844] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:24,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485671585] [2024-01-26 01:59:24,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 01:59:24,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:24,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:24,922 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) [2024-01-26 01:59:24,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-26 01:59:25,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 01:59:25,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:25,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 15 conjunts are in the unsatisfiable core [2024-01-26 01:59:25,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-26 01:59:25,389 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-26 01:59:25,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485671585] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:25,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:25,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2024-01-26 01:59:25,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282987691] [2024-01-26 01:59:25,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:25,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-01-26 01:59:25,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:25,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-01-26 01:59:25,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-01-26 01:59:25,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:25,780 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:25,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.026315789473685) internal successors, (305), 38 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:25,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:25,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-01-26 01:59:25,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-01-26 01:59:25,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-01-26 01:59:25,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-26 01:59:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-01-26 01:59:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-01-26 01:59:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-01-26 01:59:26,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:26,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:26,830 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:26,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:26,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1257402230, now seen corresponding path program 3 times [2024-01-26 01:59:26,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:26,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114134670] [2024-01-26 01:59:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:26,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-26 01:59:27,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:27,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114134670] [2024-01-26 01:59:27,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114134670] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:27,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957099648] [2024-01-26 01:59:27,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-26 01:59:27,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:27,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:27,047 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) [2024-01-26 01:59:27,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-01-26 01:59:27,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-01-26 01:59:27,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:27,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 11 conjunts are in the unsatisfiable core [2024-01-26 01:59:27,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-01-26 01:59:27,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-01-26 01:59:27,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957099648] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:27,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:27,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 24 [2024-01-26 01:59:27,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303079311] [2024-01-26 01:59:27,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:27,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-01-26 01:59:27,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-01-26 01:59:27,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2024-01-26 01:59:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:27,772 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:27,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:27,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:27,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-01-26 01:59:27,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-01-26 01:59:27,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-01-26 01:59:27,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-01-26 01:59:27,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:28,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:28,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:28,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:28,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash 670919286, now seen corresponding path program 4 times [2024-01-26 01:59:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:28,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722498070] [2024-01-26 01:59:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:28,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 49 proven. 53 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-01-26 01:59:29,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:29,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722498070] [2024-01-26 01:59:29,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722498070] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:29,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358269601] [2024-01-26 01:59:29,062 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-01-26 01:59:29,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:29,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:29,063 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:29,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-01-26 01:59:29,145 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-01-26 01:59:29,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:29,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 22 conjunts are in the unsatisfiable core [2024-01-26 01:59:29,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:29,704 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 49 proven. 57 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-01-26 01:59:29,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:30,268 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 51 proven. 55 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-01-26 01:59:30,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358269601] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:30,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:30,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 59 [2024-01-26 01:59:30,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113680356] [2024-01-26 01:59:30,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:30,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-01-26 01:59:30,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:30,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-01-26 01:59:30,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=2923, Unknown=0, NotChecked=0, Total=3422 [2024-01-26 01:59:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:30,271 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:30,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 5.915254237288136) internal successors, (349), 59 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:30,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:30,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:30,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:30,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:30,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:30,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:30,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-01-26 01:59:31,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:31,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-01-26 01:59:31,790 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:31,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1197824438, now seen corresponding path program 5 times [2024-01-26 01:59:31,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:31,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848337832] [2024-01-26 01:59:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:31,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 95 proven. 102 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 01:59:32,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:32,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848337832] [2024-01-26 01:59:32,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848337832] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:32,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437613994] [2024-01-26 01:59:32,094 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-01-26 01:59:32,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:32,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:32,095 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:32,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-01-26 01:59:32,208 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-01-26 01:59:32,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:32,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 26 conjunts are in the unsatisfiable core [2024-01-26 01:59:32,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 95 proven. 102 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 01:59:32,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:32,500 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 95 proven. 102 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 01:59:32,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437613994] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:32,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:32,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 14 [2024-01-26 01:59:32,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730358228] [2024-01-26 01:59:32,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:32,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-01-26 01:59:32,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:32,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-01-26 01:59:32,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2024-01-26 01:59:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:32,502 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:32,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.0) internal successors, (210), 14 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:32,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:32,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:32,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:32,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:32,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:32,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:32,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-01-26 01:59:32,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-01-26 01:59:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-01-26 01:59:32,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:32,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:32,789 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:32,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:32,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1268028790, now seen corresponding path program 6 times [2024-01-26 01:59:32,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:32,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255358561] [2024-01-26 01:59:32,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:32,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 144 proven. 88 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-01-26 01:59:33,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:33,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255358561] [2024-01-26 01:59:33,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255358561] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:33,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857868347] [2024-01-26 01:59:33,480 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-01-26 01:59:33,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:33,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:33,481 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:33,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-01-26 01:59:33,590 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-01-26 01:59:33,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:33,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 14 conjunts are in the unsatisfiable core [2024-01-26 01:59:33,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:34,188 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-01-26 01:59:34,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-01-26 01:59:34,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857868347] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:34,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:34,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 13, 13] total 49 [2024-01-26 01:59:34,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754619001] [2024-01-26 01:59:34,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:34,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-01-26 01:59:34,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:34,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-01-26 01:59:34,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=2050, Unknown=0, NotChecked=0, Total=2352 [2024-01-26 01:59:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:34,675 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:34,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 6.938775510204081) internal successors, (340), 49 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-01-26 01:59:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:35,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:35,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:35,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-01-26 01:59:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-01-26 01:59:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-01-26 01:59:35,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-01-26 01:59:35,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:35,880 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:35,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:35,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1037196083, now seen corresponding path program 7 times [2024-01-26 01:59:35,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:35,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374982281] [2024-01-26 01:59:35,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:35,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:36,544 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 169 proven. 81 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-01-26 01:59:36,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:36,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374982281] [2024-01-26 01:59:36,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374982281] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:36,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230131189] [2024-01-26 01:59:36,545 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-01-26 01:59:36,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:36,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:36,546 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:36,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-01-26 01:59:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:36,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 32 conjunts are in the unsatisfiable core [2024-01-26 01:59:36,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:37,518 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 196 proven. 110 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-01-26 01:59:37,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 225 proven. 81 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-01-26 01:59:38,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230131189] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:38,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:38,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 31, 31] total 85 [2024-01-26 01:59:38,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898583666] [2024-01-26 01:59:38,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:38,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2024-01-26 01:59:38,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:38,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2024-01-26 01:59:38,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1107, Invalid=6033, Unknown=0, NotChecked=0, Total=7140 [2024-01-26 01:59:38,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:38,508 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:38,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 4.729411764705882) internal successors, (402), 85 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:38,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:38,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:38,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:38,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:38,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:38,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:38,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-01-26 01:59:38,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-01-26 01:59:38,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-01-26 01:59:38,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:59:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-01-26 01:59:40,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-01-26 01:59:40,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-01-26 01:59:40,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 01:59:40,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:40,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-01-26 01:59:40,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:40,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:40,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1310226785, now seen corresponding path program 8 times [2024-01-26 01:59:40,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:40,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116066526] [2024-01-26 01:59:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:41,518 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 196 proven. 96 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-01-26 01:59:41,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:41,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116066526] [2024-01-26 01:59:41,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116066526] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:41,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260129798] [2024-01-26 01:59:41,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 01:59:41,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:41,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:41,520 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:41,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-01-26 01:59:41,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 01:59:41,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:41,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 39 conjunts are in the unsatisfiable core [2024-01-26 01:59:41,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:42,781 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 225 proven. 256 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-01-26 01:59:42,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 256 proven. 225 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-01-26 01:59:44,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260129798] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:44,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:44,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 38, 38] total 100 [2024-01-26 01:59:44,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095505938] [2024-01-26 01:59:44,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:44,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2024-01-26 01:59:44,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2024-01-26 01:59:44,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1241, Invalid=8659, Unknown=0, NotChecked=0, Total=9900 [2024-01-26 01:59:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:44,097 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:44,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 4.33) internal successors, (433), 100 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:44,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:44,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-01-26 01:59:44,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-01-26 01:59:44,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-01-26 01:59:44,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-01-26 01:59:44,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-01-26 01:59:44,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-01-26 01:59:44,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-01-26 01:59:44,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-01-26 01:59:44,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-01-26 01:59:44,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Received shutdown request... [2024-01-26 02:13:55,940 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-26 02:13:55,943 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-26 02:13:55,972 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-26 02:13:56,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-01-26 02:13:56,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:13:56,557 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2024-01-26 02:13:56,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-01-26 02:13:56,597 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1] [2024-01-26 02:13:56,598 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/5) [2024-01-26 02:13:56,599 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 02:13:56,600 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 02:13:56,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 02:13:56 BasicIcfg [2024-01-26 02:13:56,603 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 02:13:56,603 INFO L158 Benchmark]: Toolchain (without parser) took 878636.39ms. Allocated memory was 191.9MB in the beginning and 791.7MB in the end (delta: 599.8MB). Free memory was 157.8MB in the beginning and 216.3MB in the end (delta: -58.5MB). Peak memory consumption was 543.4MB. Max. memory is 8.0GB. [2024-01-26 02:13:56,603 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 191.9MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 8.0GB. [2024-01-26 02:13:56,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.43ms. Allocated memory is still 191.9MB. Free memory was 157.4MB in the beginning and 145.5MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-01-26 02:13:56,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.92ms. Allocated memory is still 191.9MB. Free memory was 145.5MB in the beginning and 143.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-26 02:13:56,604 INFO L158 Benchmark]: Boogie Preprocessor took 18.14ms. Allocated memory is still 191.9MB. Free memory was 143.8MB in the beginning and 142.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-01-26 02:13:56,605 INFO L158 Benchmark]: RCFGBuilder took 370.35ms. Allocated memory is still 191.9MB. Free memory was 142.1MB in the beginning and 120.7MB in the end (delta: 21.4MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2024-01-26 02:13:56,605 INFO L158 Benchmark]: TraceAbstraction took 878046.75ms. Allocated memory was 191.9MB in the beginning and 791.7MB in the end (delta: 599.8MB). Free memory was 120.0MB in the beginning and 216.3MB in the end (delta: -96.3MB). Peak memory consumption was 505.6MB. Max. memory is 8.0GB. [2024-01-26 02:13:56,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 191.9MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 169.43ms. Allocated memory is still 191.9MB. Free memory was 157.4MB in the beginning and 145.5MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.92ms. Allocated memory is still 191.9MB. Free memory was 145.5MB in the beginning and 143.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.14ms. Allocated memory is still 191.9MB. Free memory was 143.8MB in the beginning and 142.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 370.35ms. Allocated memory is still 191.9MB. Free memory was 142.1MB in the beginning and 120.7MB in the end (delta: 21.4MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 878046.75ms. Allocated memory was 191.9MB in the beginning and 791.7MB in the end (delta: 599.8MB). Free memory was 120.0MB in the beginning and 216.3MB in the end (delta: -96.3MB). Peak memory consumption was 505.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 33903, independent: 31343, independent conditional: 31343, independent unconditional: 0, dependent: 2560, dependent conditional: 2560, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31664, independent: 31343, independent conditional: 31343, independent unconditional: 0, dependent: 321, dependent conditional: 321, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 31664, independent: 31343, independent conditional: 31343, independent unconditional: 0, dependent: 321, dependent conditional: 321, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35114, independent: 31343, independent conditional: 0, independent unconditional: 31343, dependent: 3771, dependent conditional: 3450, dependent unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35114, independent: 31343, independent conditional: 0, independent unconditional: 31343, dependent: 3771, dependent conditional: 0, dependent unconditional: 3771, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35114, independent: 31343, independent conditional: 0, independent unconditional: 31343, dependent: 3771, dependent conditional: 0, dependent unconditional: 3771, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31664, independent: 31343, independent conditional: 0, independent unconditional: 31343, dependent: 321, dependent conditional: 0, dependent unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31664, independent: 28047, independent conditional: 0, independent unconditional: 28047, dependent: 3617, dependent conditional: 0, dependent unconditional: 3617, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3617, independent: 3296, independent conditional: 0, independent unconditional: 3296, dependent: 321, dependent conditional: 0, dependent unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3617, independent: 3296, independent conditional: 0, independent unconditional: 3296, dependent: 321, dependent conditional: 0, dependent unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3617, independent: 3296, independent conditional: 0, independent unconditional: 3296, dependent: 321, dependent conditional: 0, dependent unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3310, independent: 2964, independent conditional: 0, independent unconditional: 2964, dependent: 345, dependent conditional: 0, dependent unconditional: 345, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 35114, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3450, dependent conditional: 0, dependent unconditional: 3450, unknown: 31664, unknown conditional: 0, unknown unconditional: 31664] , Statistics on independence cache: Total cache size (in pairs): 31664, Positive cache size: 31343, Positive conditional cache size: 0, Positive unconditional cache size: 31343, Negative cache size: 321, Negative conditional cache size: 0, Negative unconditional cache size: 321, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3450, Maximal queried relation: 11, Independence queries for same thread: 2239 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 50, RedundantProofs: 8, ProvenStates: 7972, Times there's more than one choice: 6512, Avg number of choices: 7.574009031610637 - StatisticsResult: Reduction benchmarks 0.4s Time before loop, 1.7s Time in loop, 2.1s Time in total, Has Loop: true, Protected Variables: [write~init~int_#value, ULTIMATE.start_main_~#t4~0#1.offset, thread4Thread1of1ForFork1_#in~_argptr#1.offset, write~int_#ptr.base, thread3Thread1of1ForFork3_#in~_argptr.base, thread2_#res#1.base, thread4_#res#1.base, thread2Thread1of1ForFork2_~_argptr#1.base, ULTIMATE.start_main_#t~mem21#1, ULTIMATE.start_main_#t~mem22#1, ULTIMATE.start_main_#t~mem23#1, ULTIMATE.start_main_#t~mem24#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet9#1, thread2Thread1of1ForFork2_#res#1.offset, thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1, ULTIMATE.start_main_~#t3~0#1.offset, thread4Thread1of1ForFork1_#in~_argptr#1.base, thread2_~_argptr#1.base, thread4_~_argptr#1.base, thread3Thread1of1ForFork3_~_argptr.base, read~int_#ptr.base, ULTIMATE.start_#t~ret25#1, thread1_#res.offset, thread3_#res.offset, thread2Thread1of1ForFork2_thidvar0, old(thread2Thread1of1ForFork2_thidvar0), thread2Thread1of1ForFork2_thidvar1, old(thread2Thread1of1ForFork2_thidvar1), thread2Thread1of1ForFork2_thidvar2, old(thread2Thread1of1ForFork2_thidvar2), thread2_#res#1.offset, thread4_#res#1.offset, ULTIMATE.start_main_~#t2~0#1.offset, #Ultimate.allocOnStack_~size, thread1Thread1of1ForFork0_#res.offset, thread1_~_argptr.offset, thread3_~_argptr.offset, thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork2_#t~post3#1, thread2Thread1of1ForFork2_#t~post4#1, read~int_#sizeOfReadType, write~init~int_#sizeOfWrittenType, thread1_#in~_argptr.base, thread3_#in~_argptr.base, thread2Thread1of1ForFork2_~_argptr#1.offset, ~M1~0, old(~M1~0), ~M2~0, old(~M2~0), ~N1~0, old(~N1~0), ~N2~0, old(~N2~0), ~i1~0, old(~i1~0), ~i2~0, old(~i2~0), ULTIMATE.start_main_~#t1~0#1.offset, ~j1~0, old(~j1~0), ~j2~0, old(~j2~0), thread1Thread1of1ForFork0_~_argptr.offset, thread3Thread1of1ForFork3_#res.base, thread2_#t~post3#1, thread2_#t~post4#1, thread4_#t~post7#1, thread4_#t~post8#1, ULTIMATE.start_main_#t~pre13#1, ULTIMATE.start_main_#t~pre15#1, ULTIMATE.start_main_#t~pre17#1, ULTIMATE.start_main_#t~pre19#1, #Ultimate.allocOnStack_#res.offset, thread2Thread1of1ForFork2_#in~_argptr#1.offset, ULTIMATE.dealloc_~addr.offset, thread1Thread1of1ForFork0_#in~_argptr.base, thread2_~_argptr#1.offset, thread4_~_argptr#1.offset, write~int_#value, write~init~int_#ptr.offset, thread1_~_argptr.base, thread3_~_argptr.base, ULTIMATE.dealloc_~addr.base, thread3Thread1of1ForFork3_#in~_argptr.offset, ULTIMATE.start_assume_abort_if_not_~cond#1, #pthreadsForks, old(#pthreadsForks), thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1, thread2_#in~_argptr#1.offset, thread4_#in~_argptr#1.offset, thread3Thread1of1ForFork3_#t~post5, thread3Thread1of1ForFork3_#t~post6, thread2Thread1of1ForFork2_#in~_argptr#1.base, thread1Thread1of1ForFork0_~_argptr.base, #valid, old(#valid), ~counter~0, old(~counter~0), thread4Thread1of1ForFork1_#res#1.base, read~int_#value, #Ultimate.allocInit_~size, thread2_assume_abort_if_not_~cond#1, thread4_assume_abort_if_not_~cond#1, write~init~int_#ptr.base, thread2_#in~_argptr#1.base, thread4_#in~_argptr#1.base, thread4Thread1of1ForFork1_~_argptr#1.base, thread1_#res.base, thread3_#res.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1, #Ultimate.allocInit_ptrBase, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~nondet11#1, ULTIMATE.start_main_#t~nondet12#1, ULTIMATE.start_main_#t~nondet14#1, ULTIMATE.start_main_#t~nondet16#1, ULTIMATE.start_main_#t~nondet18#1, ULTIMATE.start_main_#t~nondet20#1, thread4Thread1of1ForFork1_#res#1.offset, ULTIMATE.start_main_~#t1~0#1.base, #length, old(#length), ULTIMATE.start_main_~#t2~0#1.base, write~int_#sizeOfWrittenType, thread1_#in~_argptr.offset, thread3_#in~_argptr.offset, ULTIMATE.start_main_~#t3~0#1.base, #StackHeapBarrier, old(#StackHeapBarrier), thread1Thread1of1ForFork0_#res.base, thread2_assume_abort_if_not_#in~cond#1, thread4_assume_abort_if_not_#in~cond#1, ULTIMATE.start_main_~#t4~0#1.base, thread1_#t~post1, thread1_#t~post2, thread3_#t~post5, thread3_#t~post6, thread1Thread1of1ForFork0_#in~_argptr.offset, thread1Thread1of1ForFork0_thidvar0, old(thread1Thread1of1ForFork0_thidvar0), thread1Thread1of1ForFork0_thidvar1, old(thread1Thread1of1ForFork0_thidvar1), write~int_#ptr.offset, thread3Thread1of1ForFork3_#res.offset, #memory_int, old(#memory_int), thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread4Thread1of1ForFork1_#t~post7#1, thread4Thread1of1ForFork1_#t~post8#1, #Ultimate.allocOnStack_#res.base, thread4Thread1of1ForFork1_thidvar0, old(thread4Thread1of1ForFork1_thidvar0), thread4Thread1of1ForFork1_thidvar1, old(thread4Thread1of1ForFork1_thidvar1), thread4Thread1of1ForFork1_thidvar2, old(thread4Thread1of1ForFork1_thidvar2), thread4Thread1of1ForFork1_thidvar3, old(thread4Thread1of1ForFork1_thidvar3), thread4Thread1of1ForFork1_thidvar4, old(thread4Thread1of1ForFork1_thidvar4), thread3Thread1of1ForFork3_thidvar0, old(thread3Thread1of1ForFork3_thidvar0), thread3Thread1of1ForFork3_thidvar1, old(thread3Thread1of1ForFork3_thidvar1), thread3Thread1of1ForFork3_thidvar2, old(thread3Thread1of1ForFork3_thidvar2), thread3Thread1of1ForFork3_thidvar3, old(thread3Thread1of1ForFork3_thidvar3), thread4Thread1of1ForFork1_~_argptr#1.offset, thread2Thread1of1ForFork2_#res#1.base, thread3Thread1of1ForFork3_~_argptr.offset, read~int_#ptr.offset], Protected Variables before encountering a loop: [] - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 9 procedures, 154 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 877.9s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 859.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 414, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 2876 NumberOfCodeBlocks, 2821 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 4231 ConstructedInterpolants, 0 QuantifiedInterpolants, 27718 SizeOfPredicates, 108 NumberOfNonLiveVariables, 3734 ConjunctsInSsa, 192 ConjunctsInUnsatCore, 31 InterpolantComputations, 2 PerfectInterpolantSequences, 3326/4851 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown