/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-more-nonblocking-counter-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 01:46:18,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 01:46:18,124 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-01-26 01:46:18,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 01:46:18,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 01:46:18,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-01-26 01:46:18,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 01:46:18,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 01:46:18,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 01:46:18,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 01:46:18,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 01:46:18,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 01:46:18,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 01:46:18,154 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 01:46:18,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 01:46:18,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 01:46:18,154 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 01:46:18,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 01:46:18,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 01:46:18,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 01:46:18,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 01:46:18,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 01:46:18,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 01:46:18,157 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 01:46:18,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 01:46:18,157 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 01:46:18,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 01:46:18,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 01:46:18,157 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 01:46:18,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 01:46:18,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:46:18,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 01:46:18,159 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-01-26 01:46:18,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-01-26 01:46:18,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 01:46:18,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 01:46:18,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 01:46:18,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 01:46:18,402 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 01:46:18,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-26 01:46:19,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 01:46:19,573 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 01:46:19,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-26 01:46:19,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/668a33205/1c40d7d54e5a4b7e81f855c16211a387/FLAGa06bdd19a [2024-01-26 01:46:19,594 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/668a33205/1c40d7d54e5a4b7e81f855c16211a387 [2024-01-26 01:46:19,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 01:46:19,597 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 01:46:19,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 01:46:19,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 01:46:19,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 01:46:19,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492e6d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19, skipping insertion in model container [2024-01-26 01:46:19,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,620 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 01:46:19,727 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c[2173,2186] [2024-01-26 01:46:19,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:46:19,735 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 01:46:19,746 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c[2173,2186] [2024-01-26 01:46:19,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:46:19,755 INFO L206 MainTranslator]: Completed translation [2024-01-26 01:46:19,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19 WrapperNode [2024-01-26 01:46:19,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 01:46:19,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 01:46:19,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 01:46:19,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 01:46:19,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,774 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2024-01-26 01:46:19,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 01:46:19,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 01:46:19,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 01:46:19,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 01:46:19,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 01:46:19,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 01:46:19,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 01:46:19,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 01:46:19,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (1/1) ... [2024-01-26 01:46:19,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:46:19,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:46:19,819 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 01:46:19,821 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 01:46:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 01:46:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 01:46:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 01:46:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 01:46:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 01:46:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 01:46:19,855 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 01:46:19,940 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 01:46:19,941 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 01:46:20,131 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 01:46:20,176 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 01:46:20,176 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-26 01:46:20,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:46:20 BoogieIcfgContainer [2024-01-26 01:46:20,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 01:46:20,178 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 01:46:20,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 01:46:20,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 01:46:20,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 01:46:19" (1/3) ... [2024-01-26 01:46:20,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75402aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:46:20, skipping insertion in model container [2024-01-26 01:46:20,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:46:19" (2/3) ... [2024-01-26 01:46:20,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75402aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:46:20, skipping insertion in model container [2024-01-26 01:46:20,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:46:20" (3/3) ... [2024-01-26 01:46:20,181 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-26 01:46:20,189 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 01:46:20,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 01:46:20,197 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 01:46:20,197 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 01:46:20,254 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-26 01:46:20,290 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:46:20,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 01:46:20,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:46:20,293 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 01:46:20,307 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 01:46:20,325 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-01-26 01:46:20,330 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 01:46:20,334 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;@1330305a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:46:20,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2024-01-26 01:46:20,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:46:20,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:46:20,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1833854612, now seen corresponding path program 1 times [2024-01-26 01:46:20,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:46:20,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660456047] [2024-01-26 01:46:20,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:46:20,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:46:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:46:20,569 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 01:46:20,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:46:20,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660456047] [2024-01-26 01:46:20,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660456047] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:46:20,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:46:20,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 01:46:20,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324510606] [2024-01-26 01:46:20,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:46:20,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 01:46:20,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:46:20,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 01:46:20,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 01:46:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:20,600 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:46:20,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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 01:46:20,601 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 Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:46:20,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:20,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 01:46:20,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:46:20,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:46:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1328919914, now seen corresponding path program 1 times [2024-01-26 01:46:20,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:46:20,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107621660] [2024-01-26 01:46:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:46:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:46:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:46:21,012 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 01:46:21,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:46:21,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107621660] [2024-01-26 01:46:21,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107621660] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:46:21,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120726345] [2024-01-26 01:46:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:46:21,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:46:21,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:46:21,066 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 01:46:21,083 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 01:46:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:46:21,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-26 01:46:21,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:46:21,191 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 01:46:21,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:46:21,260 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 01:46:21,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120726345] provided 1 perfect and 1 imperfect interpolant sequences [2024-01-26 01:46:21,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-01-26 01:46:21,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2024-01-26 01:46:21,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778579375] [2024-01-26 01:46:21,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:46:21,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 01:46:21,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:46:21,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 01:46:21,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-01-26 01:46:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:21,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:46:21,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 01:46:21,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:21,268 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 Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:46:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:46:21,320 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 01:46:21,520 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 01:46:21,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:46:21,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:46:21,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1853623083, now seen corresponding path program 1 times [2024-01-26 01:46:21,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:46:21,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712656907] [2024-01-26 01:46:21,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:46:21,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:46:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:46:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:46:21,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:46:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712656907] [2024-01-26 01:46:21,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712656907] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:46:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520554222] [2024-01-26 01:46:21,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:46:21,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:46:21,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:46:21,957 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 01:46:22,023 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 01:46:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:46:22,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 16 conjunts are in the unsatisfiable core [2024-01-26 01:46:22,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:46:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:46:22,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:46:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:46:22,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520554222] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:46:22,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:46:22,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 11] total 20 [2024-01-26 01:46:22,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96996554] [2024-01-26 01:46:22,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:46:22,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-01-26 01:46:22,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:46:22,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-01-26 01:46:22,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-01-26 01:46:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:22,422 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:46:22,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 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 01:46:22,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:22,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:46:22,423 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 Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:46:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:46:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:46:23,043 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 01:46:23,221 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 01:46:23,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:46:23,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:46:23,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1397854026, now seen corresponding path program 2 times [2024-01-26 01:46:23,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:46:23,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050560965] [2024-01-26 01:46:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:46:23,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:46:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:46:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:46:24,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:46:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050560965] [2024-01-26 01:46:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050560965] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:46:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736449484] [2024-01-26 01:46:24,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 01:46:24,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:46:24,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:46:24,161 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 01:46:24,181 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 01:46:24,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 01:46:24,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:46:24,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 18 conjunts are in the unsatisfiable core [2024-01-26 01:46:24,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:46:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:46:24,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:46:25,162 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:46:25,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736449484] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:46:25,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:46:25,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 13] total 36 [2024-01-26 01:46:25,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591027674] [2024-01-26 01:46:25,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:46:25,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-01-26 01:46:25,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:46:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-01-26 01:46:25,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1066, Unknown=0, NotChecked=0, Total=1260 [2024-01-26 01:46:25,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:25,165 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:46:25,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.555555555555555) internal successors, (164), 36 states have internal predecessors, (164), 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 01:46:25,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:25,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:46:25,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:46:25,165 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 Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:46:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:46:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:46:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-01-26 01:46:26,822 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 01:46:27,009 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 01:46:27,009 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:46:27,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:46:27,009 INFO L85 PathProgramCache]: Analyzing trace with hash 251421581, now seen corresponding path program 3 times [2024-01-26 01:46:27,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:46:27,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386579163] [2024-01-26 01:46:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:46:27,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:46:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:46:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:46:31,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:46:31,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386579163] [2024-01-26 01:46:31,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386579163] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:46:31,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465379002] [2024-01-26 01:46:31,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-26 01:46:31,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:46:31,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:46:31,411 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 01:46:31,430 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 01:46:31,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-01-26 01:46:31,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:46:31,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 27 conjunts are in the unsatisfiable core [2024-01-26 01:46:31,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:46:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 64 proven. 39 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-01-26 01:46:32,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:46:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 64 proven. 39 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-01-26 01:46:33,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465379002] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:46:33,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:46:33,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 15, 18] total 59 [2024-01-26 01:46:33,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960774512] [2024-01-26 01:46:33,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:46:33,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-01-26 01:46:33,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:46:33,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-01-26 01:46:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=3156, Unknown=0, NotChecked=0, Total=3422 [2024-01-26 01:46:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:33,742 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:46:33,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.7288135593220337) internal successors, (220), 59 states have internal predecessors, (220), 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 01:46:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:46:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:46:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-01-26 01:46:33,742 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 Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:46:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:46:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:46:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:46:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 01:46:42,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-01-26 01:46:42,682 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 01:46:42,877 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 01:46:42,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:46:42,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:46:42,877 INFO L85 PathProgramCache]: Analyzing trace with hash -450050058, now seen corresponding path program 4 times [2024-01-26 01:46:42,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:46:42,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603714374] [2024-01-26 01:46:42,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:46:42,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:46:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:46:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:46:45,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:46:45,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603714374] [2024-01-26 01:46:45,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603714374] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:46:45,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462441298] [2024-01-26 01:46:45,853 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-01-26 01:46:45,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:46:45,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:46:45,856 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 01:46:45,859 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 01:46:45,945 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-01-26 01:46:45,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:46:45,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 32 conjunts are in the unsatisfiable core [2024-01-26 01:46:45,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:46:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 30 proven. 155 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-01-26 01:46:50,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:47:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 15 proven. 170 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-01-26 01:47:04,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462441298] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:47:04,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:47:04,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 18, 21] total 72 [2024-01-26 01:47:04,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531895087] [2024-01-26 01:47:04,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:47:04,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-01-26 01:47:04,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:47:04,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-01-26 01:47:04,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=4653, Unknown=1, NotChecked=0, Total=5112 [2024-01-26 01:47:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:47:04,287 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:47:04,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 3.4444444444444446) internal successors, (248), 72 states have internal predecessors, (248), 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 01:47:04,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:47:04,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:47:04,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:47:04,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 01:47:04,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2024-01-26 01:47:04,288 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 Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:47:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:47:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:47:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-01-26 01:47:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-01-26 01:47:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-01-26 01:47:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-01-26 01:47:08,711 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 01:47:08,911 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 01:47:08,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:47:08,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:47:08,912 INFO L85 PathProgramCache]: Analyzing trace with hash 462709561, now seen corresponding path program 5 times [2024-01-26 01:47:08,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:47:08,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162587577] [2024-01-26 01:47:08,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:47:08,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:47:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:47:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:47:53,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:47:53,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162587577] [2024-01-26 01:47:53,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162587577] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:47:53,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843006370] [2024-01-26 01:47:53,061 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-01-26 01:47:53,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:47:53,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:47:53,062 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 01:47:53,063 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 01:47:53,545 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-01-26 01:47:53,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:47:53,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 33 conjunts are in the unsatisfiable core [2024-01-26 01:47:53,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:49:49,361 WARN L293 SmtUtils]: Spent 10.13s on a formula simplification. DAG size of input: 24 DAG size of output: 17 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2024-01-26 01:51:17,659 WARN L293 SmtUtils]: Spent 1.24m on a formula simplification. DAG size of input: 119 DAG size of output: 109 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-01-26 01:52:48,919 WARN L293 SmtUtils]: Spent 31.16s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-01-26 01:54:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 234 refuted. 2 times theorem prover too weak. 75 trivial. 0 not checked. [2024-01-26 01:54:06,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:54:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-01-26 01:54:42,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843006370] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:54:42,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:54:42,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 21, 22] total 83 [2024-01-26 01:54:42,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086785096] [2024-01-26 01:54:42,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:54:42,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-01-26 01:54:42,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:54:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-01-26 01:54:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=512, Invalid=6270, Unknown=24, NotChecked=0, Total=6806 [2024-01-26 01:54:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:54:42,282 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:54:42,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 3.1566265060240966) internal successors, (262), 83 states have internal predecessors, (262), 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 01:54:42,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:54:42,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:54:42,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-01-26 01:54:42,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-01-26 01:54:42,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2024-01-26 01:54:42,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-01-26 01:54:42,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer [2024-01-26 01:55:27,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-01-26 01:56:04,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2024-01-26 01:57:55,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-01-26 01:57:57,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-01-26 01:57:58,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-01-26 01:58:00,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-01-26 01:58:02,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-01-26 01:58:04,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-01-26 01:58:06,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-01-26 01:58:19,204 WARN L293 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 122 DAG size of output: 112 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-01-26 01:58:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:58:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 01:58:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-01-26 01:58:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-01-26 01:58:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-01-26 01:58:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-01-26 01:58:19,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-01-26 01:58:19,376 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 01:58:19,565 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 01:58:19,565 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:58:19,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:58:19,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1131655964, now seen corresponding path program 6 times [2024-01-26 01:58:19,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:58:19,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153856198] [2024-01-26 01:58:19,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:58:19,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:58:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:58:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:58:22,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:58:22,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153856198] [2024-01-26 01:58:22,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153856198] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:58:22,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311718217] [2024-01-26 01:58:22,817 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-01-26 01:58:22,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:58:22,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:58:22,818 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 01:58:22,819 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 01:58:24,470 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-01-26 01:58:24,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:58:24,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 40 conjunts are in the unsatisfiable core [2024-01-26 01:58:24,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:58:46,233 WARN L293 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-01-26 01:59:38,331 WARN L293 SmtUtils]: Spent 27.31s on a formula simplification that was a NOOP. DAG size: 98 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2024-01-26 02:00:52,005 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 02:00:52,005 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 02:00:52,010 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-26 02:00:53,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-01-26 02:00:53,033 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 02:00:53,201 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-01-26 02:00:53,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-26 02:00:53,202 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 154 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2024-01-26 02:00:53,205 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1] [2024-01-26 02:00:53,206 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/3) [2024-01-26 02:00:53,207 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 02:00:53,207 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 02:00:53,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 02:00:53 BasicIcfg [2024-01-26 02:00:53,209 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 02:00:53,209 INFO L158 Benchmark]: Toolchain (without parser) took 873612.53ms. Allocated memory was 240.1MB in the beginning and 571.5MB in the end (delta: 331.4MB). Free memory was 179.5MB in the beginning and 204.2MB in the end (delta: -24.7MB). Peak memory consumption was 329.7MB. Max. memory is 8.0GB. [2024-01-26 02:00:53,209 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 240.1MB. Free memory is still 192.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-01-26 02:00:53,209 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-01-26 02:00:53,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.05ms. Allocated memory is still 240.1MB. Free memory was 179.2MB in the beginning and 168.0MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-01-26 02:00:53,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.30ms. Allocated memory is still 240.1MB. Free memory was 168.0MB in the beginning and 166.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-01-26 02:00:53,225 INFO L158 Benchmark]: Boogie Preprocessor took 21.99ms. Allocated memory is still 240.1MB. Free memory was 166.4MB in the beginning and 165.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-26 02:00:53,225 INFO L158 Benchmark]: RCFGBuilder took 379.11ms. Allocated memory was 240.1MB in the beginning and 310.4MB in the end (delta: 70.3MB). Free memory was 165.1MB in the beginning and 271.3MB in the end (delta: -106.2MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2024-01-26 02:00:53,225 INFO L158 Benchmark]: TraceAbstraction took 873031.28ms. Allocated memory was 310.4MB in the beginning and 571.5MB in the end (delta: 261.1MB). Free memory was 270.3MB in the beginning and 204.2MB in the end (delta: 66.0MB). Peak memory consumption was 348.6MB. Max. memory is 8.0GB. [2024-01-26 02:00:53,226 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 240.1MB. Free memory is still 192.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 157.05ms. Allocated memory is still 240.1MB. Free memory was 179.2MB in the beginning and 168.0MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.30ms. Allocated memory is still 240.1MB. Free memory was 168.0MB in the beginning and 166.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.99ms. Allocated memory is still 240.1MB. Free memory was 166.4MB in the beginning and 165.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 379.11ms. Allocated memory was 240.1MB in the beginning and 310.4MB in the end (delta: 70.3MB). Free memory was 165.1MB in the beginning and 271.3MB in the end (delta: -106.2MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * TraceAbstraction took 873031.28ms. Allocated memory was 310.4MB in the beginning and 571.5MB in the end (delta: 261.1MB). Free memory was 270.3MB in the beginning and 204.2MB in the end (delta: 66.0MB). Peak memory consumption was 348.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 163, independent: 115, independent conditional: 115, independent unconditional: 0, dependent: 48, dependent conditional: 48, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 115, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 115, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 139, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 24, dependent conditional: 19, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 139, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 139, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 139, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 19, Maximal queried relation: 5, Independence queries for same thread: 43 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 19, RedundantProofs: 6, ProvenStates: 49, Times there's more than one choice: 39, Avg number of choices: 3.204081632653061 - StatisticsResult: Reduction benchmarks 13.5s Time before loop, 203.5s Time in loop, 217.1s Time in total, Has Loop: true, Protected Variables: [write~init~int_#value, ULTIMATE.start_main_#t~mem9#1, write~int_#ptr.base, ULTIMATE.start_main_#t~mem10#1, thread1_~i~0, thread2_~i~1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet6#1, ULTIMATE.start_main_#t~nondet8#1, thread2Thread1of1ForFork1_#res.offset, read~int_#ptr.base, thread1Thread1of1ForFork0_~i~0, ULTIMATE.start_#t~ret11#1, thread1_#res.offset, thread2_#res.offset, thread2Thread1of1ForFork1_~_argptr.offset, thread2Thread1of1ForFork1_#in~_argptr.base, ULTIMATE.start_main_~#t2~0#1.offset, #Ultimate.allocOnStack_~size, thread1Thread1of1ForFork0_#res.offset, thread1_~_argptr.offset, thread2_~_argptr.offset, read~int_#sizeOfReadType, write~init~int_#sizeOfWrittenType, thread1_#in~_argptr.base, thread2_#in~_argptr.base, thread2Thread1of1ForFork1_~_argptr.base, ULTIMATE.start_main_~#t1~0#1.offset, thread1Thread1of1ForFork0_~_argptr.offset, #Ultimate.allocOnStack_#res.offset, ULTIMATE.dealloc_~addr.offset, thread1Thread1of1ForFork0_#in~_argptr.base, write~int_#value, write~init~int_#ptr.offset, thread1_~_argptr.base, thread2_~_argptr.base, ULTIMATE.dealloc_~addr.base, ULTIMATE.start_assume_abort_if_not_~cond#1, #pthreadsForks, old(#pthreadsForks), ~C~0, old(~C~0), ~M~0, old(~M~0), thread1Thread1of1ForFork0_~_argptr.base, #valid, old(#valid), ~counter~0, old(~counter~0), read~int_#value, #Ultimate.allocInit_~size, thread2Thread1of1ForFork1_#res.base, write~init~int_#ptr.base, thread2Thread1of1ForFork1_thidvar0, old(thread2Thread1of1ForFork1_thidvar0), thread2Thread1of1ForFork1_thidvar1, old(thread2Thread1of1ForFork1_thidvar1), thread2Thread1of1ForFork1_thidvar2, old(thread2Thread1of1ForFork1_thidvar2), thread2Thread1of1ForFork1_#in~_argptr.offset, thread1_#res.base, thread2_#res.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1, #Ultimate.allocInit_ptrBase, ULTIMATE.start_main_~#t1~0#1.base, thread2Thread1of1ForFork1_#t~post2, #length, old(#length), ULTIMATE.start_main_~#t2~0#1.base, write~int_#sizeOfWrittenType, thread1_#in~_argptr.offset, thread2_#in~_argptr.offset, #StackHeapBarrier, old(#StackHeapBarrier), thread1Thread1of1ForFork0_#res.base, thread1_#t~post1, thread2_#t~post2, thread1Thread1of1ForFork0_#in~_argptr.offset, thread1Thread1of1ForFork0_thidvar0, old(thread1Thread1of1ForFork0_thidvar0), thread1Thread1of1ForFork0_thidvar1, old(thread1Thread1of1ForFork0_thidvar1), write~int_#ptr.offset, ULTIMATE.start_main_#t~pre5#1, ULTIMATE.start_main_#t~pre7#1, #memory_int, old(#memory_int), thread1Thread1of1ForFork0_#t~post1, #Ultimate.allocOnStack_#res.base, thread2Thread1of1ForFork1_~i~1, read~int_#ptr.offset], Protected Variables before encountering a loop: [] - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 154 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 100 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 872.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 232.8s, 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: 287, 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: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 483.4s InterpolantComputationTime, 1205 NumberOfCodeBlocks, 1195 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1757 ConstructedInterpolants, 1 QuantifiedInterpolants, 15657 SizeOfPredicates, 87 NumberOfNonLiveVariables, 1212 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 19 InterpolantComputations, 2 PerfectInterpolantSequences, 415/2115 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