/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-simple-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 02:02:21,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 02:02:21,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-01-26 02:02:21,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 02:02:21,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 02:02:21,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-01-26 02:02:21,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 02:02:21,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 02:02:21,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 02:02:21,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 02:02:21,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 02:02:21,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 02:02:21,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 02:02:21,822 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 02:02:21,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 02:02:21,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 02:02:21,822 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 02:02:21,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 02:02:21,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 02:02:21,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 02:02:21,823 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 02:02:21,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 02:02:21,824 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 02:02:21,824 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 02:02:21,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 02:02:21,824 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 02:02:21,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 02:02:21,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 02:02:21,825 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 02:02:21,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 02:02:21,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 02:02:21,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 02:02:21,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 02:02:21,826 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-01-26 02:02:21,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-01-26 02:02:21,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 02:02:21,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 02:02:21,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 02:02:21,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 02:02:21,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 02:02:21,827 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-01-26 02:02:21,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-01-26 02:02:22,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 02:02:22,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 02:02:22,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 02:02:22,049 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 02:02:22,049 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 02:02:22,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2024-01-26 02:02:23,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 02:02:23,169 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 02:02:23,169 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2024-01-26 02:02:23,174 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/95e134ba6/a6338129055e4232adc2c0b71e42e16c/FLAGa91adc98e [2024-01-26 02:02:23,183 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/95e134ba6/a6338129055e4232adc2c0b71e42e16c [2024-01-26 02:02:23,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 02:02:23,185 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 02:02:23,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 02:02:23,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 02:02:23,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 02:02:23,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f4b08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23, skipping insertion in model container [2024-01-26 02:02:23,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 02:02:23,328 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-simple-array-sum.wvr.c[2729,2742] [2024-01-26 02:02:23,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 02:02:23,340 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 02:02:23,362 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-simple-array-sum.wvr.c[2729,2742] [2024-01-26 02:02:23,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 02:02:23,376 INFO L206 MainTranslator]: Completed translation [2024-01-26 02:02:23,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23 WrapperNode [2024-01-26 02:02:23,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 02:02:23,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 02:02:23,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 02:02:23,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 02:02:23,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,404 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 127 [2024-01-26 02:02:23,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 02:02:23,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 02:02:23,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 02:02:23,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 02:02:23,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 02:02:23,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 02:02:23,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 02:02:23,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 02:02:23,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (1/1) ... [2024-01-26 02:02:23,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 02:02:23,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:02:23,463 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 02:02:23,470 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 02:02:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 02:02:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 02:02:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 02:02:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 02:02:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 02:02:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 02:02:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 02:02:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 02:02:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 02:02:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 02:02:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 02:02:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 02:02:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 02:02:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-26 02:02:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 02:02:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 02:02:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 02:02:23,488 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 02:02:23,559 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 02:02:23,561 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 02:02:23,825 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 02:02:23,852 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 02:02:23,852 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2024-01-26 02:02:23,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 02:02:23 BoogieIcfgContainer [2024-01-26 02:02:23,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 02:02:23,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 02:02:23,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 02:02:23,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 02:02:23,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 02:02:23" (1/3) ... [2024-01-26 02:02:23,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67cb05a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 02:02:23, skipping insertion in model container [2024-01-26 02:02:23,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:02:23" (2/3) ... [2024-01-26 02:02:23,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67cb05a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 02:02:23, skipping insertion in model container [2024-01-26 02:02:23,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 02:02:23" (3/3) ... [2024-01-26 02:02:23,858 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2024-01-26 02:02:23,864 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 02:02:23,871 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 02:02:23,871 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 02:02:23,871 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 02:02:23,927 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-26 02:02:23,960 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 02:02:23,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 02:02:23,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:02:23,968 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 02:02:23,970 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 02:02:24,010 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-01-26 02:02:24,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 02:02:24,044 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;@1a6d778d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 02:02:24,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2024-01-26 02:02:30,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:02:30,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:02:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1334250248, now seen corresponding path program 1 times [2024-01-26 02:02:30,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:02:30,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432191888] [2024-01-26 02:02:30,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:02:30,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:02:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:02:30,329 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-26 02:02:30,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:02:30,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432191888] [2024-01-26 02:02:30,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432191888] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 02:02:30,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 02:02:30,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 02:02:30,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769283203] [2024-01-26 02:02:30,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 02:02:30,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 02:02:30,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:02:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 02:02:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 02:02:30,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:30,359 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:02:30,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:02:30,360 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 [2024-01-26 02:02:34,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:34,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 02:02:34,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:02:34,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:02:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash -136674625, now seen corresponding path program 1 times [2024-01-26 02:02:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:02:34,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399212943] [2024-01-26 02:02:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:02:34,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:02:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:02:35,306 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-26 02:02:35,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:02:35,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399212943] [2024-01-26 02:02:35,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399212943] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 02:02:35,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 02:02:35,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-26 02:02:35,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574128406] [2024-01-26 02:02:35,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 02:02:35,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-26 02:02:35,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:02:35,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-26 02:02:35,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-01-26 02:02:35,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:35,321 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:02:35,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 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 02:02:35,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:35,321 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 [2024-01-26 02:02:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:41,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:02:41,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 02:02:41,271 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:02:41,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:02:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1409933902, now seen corresponding path program 1 times [2024-01-26 02:02:41,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:02:41,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393713562] [2024-01-26 02:02:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:02:41,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:02:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:02:41,660 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-26 02:02:41,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:02:41,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393713562] [2024-01-26 02:02:41,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393713562] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:02:41,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872719394] [2024-01-26 02:02:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:02:41,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:02:41,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:02:41,708 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 02:02:41,709 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 02:02:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:02:41,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 12 conjunts are in the unsatisfiable core [2024-01-26 02:02:41,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:02:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-26 02:02:42,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:02:42,339 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-26 02:02:42,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872719394] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:02:42,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:02:42,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2024-01-26 02:02:42,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764864881] [2024-01-26 02:02:42,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:02:42,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-01-26 02:02:42,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:02:42,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-01-26 02:02:42,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2024-01-26 02:02:42,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:42,341 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:02:42,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.653846153846153) internal successors, (225), 26 states have internal predecessors, (225), 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 02:02:42,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:42,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:02:42,342 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 [2024-01-26 02:02:47,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:02:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-01-26 02:02:47,837 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 02:02:48,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-01-26 02:02:48,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:02:48,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:02:48,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1641254881, now seen corresponding path program 2 times [2024-01-26 02:02:48,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:02:48,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776084065] [2024-01-26 02:02:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:02:48,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:02:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:02:48,364 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-01-26 02:02:48,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:02:48,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776084065] [2024-01-26 02:02:48,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776084065] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:02:48,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871681053] [2024-01-26 02:02:48,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 02:02:48,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:02:48,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:02:48,373 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 02:02:48,397 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 02:02:48,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 02:02:48,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:02:48,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjunts are in the unsatisfiable core [2024-01-26 02:02:48,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:02:48,604 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-01-26 02:02:48,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:02:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-01-26 02:02:48,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871681053] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:02:48,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:02:48,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 20 [2024-01-26 02:02:48,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252294721] [2024-01-26 02:02:48,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:02:48,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-01-26 02:02:48,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:02:48,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-01-26 02:02:48,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-01-26 02:02:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:48,712 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:02:48,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 16.8) internal successors, (336), 20 states have internal predecessors, (336), 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 02:02:48,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:48,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:02:48,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-01-26 02:02:48,713 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 [2024-01-26 02:02:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:49,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:02:49,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-01-26 02:02:49,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-01-26 02:02:49,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-26 02:02:49,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:02:49,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:02:49,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:02:49,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2078010833, now seen corresponding path program 3 times [2024-01-26 02:02:49,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:02:49,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035508612] [2024-01-26 02:02:49,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:02:49,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:02:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:02:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 31 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-01-26 02:02:49,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:02:49,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035508612] [2024-01-26 02:02:49,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035508612] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:02:49,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375438623] [2024-01-26 02:02:49,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-26 02:02:49,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:02:49,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:02:49,986 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 02:02:50,011 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 02:02:50,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-01-26 02:02:50,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:02:50,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 8 conjunts are in the unsatisfiable core [2024-01-26 02:02:50,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:02:50,389 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-01-26 02:02:50,389 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:02:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-01-26 02:02:50,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375438623] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:02:50,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:02:50,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 24 [2024-01-26 02:02:50,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577863539] [2024-01-26 02:02:50,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:02:50,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-01-26 02:02:50,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:02:50,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-01-26 02:02:50,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2024-01-26 02:02:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:50,530 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:02:50,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.958333333333334) internal successors, (335), 24 states have internal predecessors, (335), 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 02:02:50,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:50,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:02:50,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-01-26 02:02:50,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-01-26 02:02:50,530 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 [2024-01-26 02:07:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:07:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:07:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-01-26 02:07:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-01-26 02:07:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:07:12,803 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 02:07:12,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:07:12,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:07:12,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:07:12,998 INFO L85 PathProgramCache]: Analyzing trace with hash -557189702, now seen corresponding path program 4 times [2024-01-26 02:07:12,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:07:12,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245023133] [2024-01-26 02:07:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:07:12,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:07:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:07:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-01-26 02:07:13,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:07:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245023133] [2024-01-26 02:07:13,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245023133] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:07:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838418241] [2024-01-26 02:07:13,305 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-01-26 02:07:13,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:07:13,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:07:13,309 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 02:07:13,312 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 02:07:13,439 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-01-26 02:07:13,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:07:13,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 20 conjunts are in the unsatisfiable core [2024-01-26 02:07:13,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:07:13,821 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 24 proven. 46 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-01-26 02:07:13,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:07:14,277 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 46 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-01-26 02:07:14,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838418241] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:07:14,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:07:14,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 21, 21] total 48 [2024-01-26 02:07:14,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032074546] [2024-01-26 02:07:14,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:07:14,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-01-26 02:07:14,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:07:14,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-01-26 02:07:14,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=2033, Unknown=0, NotChecked=0, Total=2256 [2024-01-26 02:07:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:07:14,280 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:07:14,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 7.6875) internal successors, (369), 48 states have internal predecessors, (369), 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 02:07:14,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:07:14,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:07:14,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-01-26 02:07:14,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-01-26 02:07:14,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:07:14,280 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 [2024-01-26 02:12:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:12:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:12:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-01-26 02:12:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-01-26 02:12:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:12:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-01-26 02:12:07,285 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 02:12:07,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-01-26 02:12:07,479 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:12:07,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:12:07,479 INFO L85 PathProgramCache]: Analyzing trace with hash -642277045, now seen corresponding path program 5 times [2024-01-26 02:12:07,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:12:07,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527733546] [2024-01-26 02:12:07,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:12:07,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:12:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:12:07,894 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 2 proven. 65 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-01-26 02:12:07,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:12:07,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527733546] [2024-01-26 02:12:07,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527733546] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:12:07,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283127493] [2024-01-26 02:12:07,895 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-01-26 02:12:07,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:12:07,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:12:07,912 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 02:12:07,968 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 02:12:08,292 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-01-26 02:12:08,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:12:08,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 24 conjunts are in the unsatisfiable core [2024-01-26 02:12:08,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:12:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 46 proven. 75 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-01-26 02:12:08,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:12:09,437 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 75 proven. 46 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-01-26 02:12:09,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283127493] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:12:09,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:12:09,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 25, 25] total 56 [2024-01-26 02:12:09,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853560004] [2024-01-26 02:12:09,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:12:09,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-01-26 02:12:09,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:12:09,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-01-26 02:12:09,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=2784, Unknown=0, NotChecked=0, Total=3080 [2024-01-26 02:12:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:12:09,442 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:12:09,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 7.714285714285714) internal successors, (432), 56 states have internal predecessors, (432), 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 02:12:09,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:12:09,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 02:12:09,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-01-26 02:12:09,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-01-26 02:12:09,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:12:09,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2024-01-26 02:12:09,444 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 Received shutdown request... [2024-01-26 02:16:55,729 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 02:16:55,729 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 02:16:55,729 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-26 02:16:55,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-01-26 02:16:56,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:16:56,140 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2024-01-26 02:16:56,142 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-01-26 02:16:56,196 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2024-01-26 02:16:56,197 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/4) [2024-01-26 02:16:56,199 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 02:16:56,199 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 02:16:56,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 02:16:56 BasicIcfg [2024-01-26 02:16:56,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 02:16:56,201 INFO L158 Benchmark]: Toolchain (without parser) took 873015.64ms. Allocated memory was 206.6MB in the beginning and 380.6MB in the end (delta: 174.1MB). Free memory was 165.9MB in the beginning and 145.5MB in the end (delta: 20.3MB). Peak memory consumption was 329.9MB. Max. memory is 8.0GB. [2024-01-26 02:16:56,201 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory is still 153.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-01-26 02:16:56,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.03ms. Allocated memory is still 206.6MB. Free memory was 165.9MB in the beginning and 153.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-01-26 02:16:56,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.48ms. Allocated memory is still 206.6MB. Free memory was 153.6MB in the beginning and 151.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-26 02:16:56,201 INFO L158 Benchmark]: Boogie Preprocessor took 23.66ms. Allocated memory is still 206.6MB. Free memory was 151.6MB in the beginning and 149.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-01-26 02:16:56,201 INFO L158 Benchmark]: RCFGBuilder took 423.18ms. Allocated memory is still 206.6MB. Free memory was 149.9MB in the beginning and 129.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2024-01-26 02:16:56,202 INFO L158 Benchmark]: TraceAbstraction took 872346.23ms. Allocated memory was 206.6MB in the beginning and 380.6MB in the end (delta: 174.1MB). Free memory was 129.2MB in the beginning and 145.5MB in the end (delta: -16.3MB). Peak memory consumption was 293.2MB. Max. memory is 8.0GB. [2024-01-26 02:16:56,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory is still 153.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.03ms. Allocated memory is still 206.6MB. Free memory was 165.9MB in the beginning and 153.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.48ms. Allocated memory is still 206.6MB. Free memory was 153.6MB in the beginning and 151.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.66ms. Allocated memory is still 206.6MB. Free memory was 151.6MB in the beginning and 149.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 423.18ms. Allocated memory is still 206.6MB. Free memory was 149.9MB in the beginning and 129.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 872346.23ms. Allocated memory was 206.6MB in the beginning and 380.6MB in the end (delta: 174.1MB). Free memory was 129.2MB in the beginning and 145.5MB in the end (delta: -16.3MB). Peak memory consumption was 293.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 51141, independent: 47155, independent conditional: 47155, independent unconditional: 0, dependent: 3986, dependent conditional: 3986, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47456, independent: 47155, independent conditional: 47155, independent unconditional: 0, dependent: 301, dependent conditional: 301, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 47456, independent: 47155, independent conditional: 47155, independent unconditional: 0, dependent: 301, dependent conditional: 301, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48857, independent: 47155, independent conditional: 0, independent unconditional: 47155, dependent: 1702, dependent conditional: 1401, dependent unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 48857, independent: 47155, independent conditional: 0, independent unconditional: 47155, dependent: 1702, dependent conditional: 0, dependent unconditional: 1702, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 48857, independent: 47155, independent conditional: 0, independent unconditional: 47155, dependent: 1702, dependent conditional: 0, dependent unconditional: 1702, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 47456, independent: 47155, independent conditional: 0, independent unconditional: 47155, dependent: 301, dependent conditional: 0, dependent unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 47456, independent: 47155, independent conditional: 0, independent unconditional: 47155, dependent: 301, dependent conditional: 0, dependent unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 301, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 301, dependent conditional: 0, dependent unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 301, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 301, dependent conditional: 0, dependent unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 301, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 301, dependent conditional: 0, dependent unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 435, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 435, dependent conditional: 0, dependent unconditional: 435, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 48857, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1401, dependent conditional: 0, dependent unconditional: 1401, unknown: 47456, unknown conditional: 0, unknown unconditional: 47456] , Statistics on independence cache: Total cache size (in pairs): 47456, Positive cache size: 47155, Positive conditional cache size: 0, Positive unconditional cache size: 47155, Negative cache size: 301, Negative conditional cache size: 0, Negative unconditional cache size: 301, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1401, Maximal queried relation: 7, Independence queries for same thread: 3685 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 18, RedundantProofs: 5, ProvenStates: 10772, Times there's more than one choice: 8379, Avg number of choices: 3.792610471593019 - StatisticsResult: Reduction benchmarks 0.2s Time before loop, 292.8s Time in loop, 293.0s Time in total, Has Loop: true, Protected Variables: [write~init~int_#value, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset, thread3Thread1of1ForFork1_#t~mem5, thread2Thread1of1ForFork0_thidvar0, old(thread2Thread1of1ForFork0_thidvar0), thread2Thread1of1ForFork0_thidvar1, old(thread2Thread1of1ForFork0_thidvar1), thread2Thread1of1ForFork0_thidvar2, old(thread2Thread1of1ForFork0_thidvar2), thread1Thread1of1ForFork2_thidvar0, old(thread1Thread1of1ForFork2_thidvar0), thread1Thread1of1ForFork2_thidvar1, old(thread1Thread1of1ForFork2_thidvar1), write~int_#ptr.base, thread3_~cond~0, #Ultimate.allocOnHeap_#res.offset, thread3Thread1of1ForFork1_#in~_argptr.base, ULTIMATE.start_main_#t~mem16#1, ULTIMATE.start_main_#t~mem17#1, ULTIMATE.start_main_#t~mem18#1, thread1_~i~0, thread2_~i~1, thread3_~i~2, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet7#1, thread2Thread1of1ForFork0_#res.offset, ULTIMATE.start_main_~#t3~0#1.offset, ULTIMATE.start_main_#t~ret9#1.base, thread3Thread1of1ForFork1_~_argptr.base, read~int_#ptr.base, thread1Thread1of1ForFork2_~i~0, ULTIMATE.start_#t~ret22#1, thread1_#res.offset, thread2_#res.offset, thread3_#res.offset, thread2Thread1of1ForFork0_~_argptr.offset, ULTIMATE.start_main_#t~ret8#1.base, thread2Thread1of1ForFork0_#t~mem4, thread2Thread1of1ForFork0_#in~_argptr.base, ULTIMATE.start_main_~#t2~0#1.offset, #Ultimate.allocOnStack_~size, thread1Thread1of1ForFork2_#res.offset, thread1_~_argptr.offset, thread2_~_argptr.offset, thread3_~_argptr.offset, read~int_#sizeOfReadType, ULTIMATE.start_create_fresh_uint_array_#t~malloc19#1.base, write~init~int_#sizeOfWrittenType, thread1_#t~mem2, thread2_#t~mem4, thread3_#t~mem5, thread1_#in~_argptr.base, thread2_#in~_argptr.base, thread3_#in~_argptr.base, thread2Thread1of1ForFork0_~_argptr.base, ULTIMATE.start_main_~#t1~0#1.offset, thread1Thread1of1ForFork2_~_argptr.offset, thread3Thread1of1ForFork1_#res.base, ULTIMATE.start_create_fresh_uint_array_#t~malloc19#1.offset, ULTIMATE.start_main_#t~pre10#1, ULTIMATE.start_main_#t~pre12#1, ULTIMATE.start_main_#t~pre14#1, ULTIMATE.start_create_fresh_uint_array_#in~size#1, thread1Thread1of1ForFork2_#t~mem2, #Ultimate.allocOnStack_#res.offset, ULTIMATE.dealloc_~addr.offset, thread1Thread1of1ForFork2_#in~_argptr.base, write~int_#value, ~A~0.offset, old(~A~0.offset), write~init~int_#ptr.offset, thread1_~_argptr.base, thread2_~_argptr.base, thread3_~_argptr.base, ULTIMATE.dealloc_~addr.base, ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base, ~asum~0, old(~asum~0), thread3Thread1of1ForFork1_#in~_argptr.offset, ULTIMATE.start_create_fresh_uint_array_~size#1, ULTIMATE.start_assume_abort_if_not_~cond#1, #pthreadsForks, old(#pthreadsForks), thread3Thread1of1ForFork1_#t~post6, ~N~0, old(~N~0), #Ultimate.allocOnHeap_#res.base, ~p~0, old(~p~0), thread1Thread1of1ForFork2_~_argptr.base, #valid, old(#valid), read~int_#value, #Ultimate.allocInit_~size, thread2Thread1of1ForFork0_#res.base, ULTIMATE.start_main_#t~ret8#1.offset, ULTIMATE.start_create_fresh_uint_array_#res#1.offset, ~C~0.offset, old(~C~0.offset), write~init~int_#ptr.base, ULTIMATE.start_main_#t~ret9#1.offset, ULTIMATE.start_create_fresh_uint_array_#t~nondet21#1, thread2Thread1of1ForFork0_#in~_argptr.offset, ULTIMATE.start_create_fresh_uint_array_#t~post20#1, thread1_#res.base, thread2_#res.base, thread3_#res.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1, #Ultimate.allocInit_ptrBase, ULTIMATE.start_main_#t~nondet11#1, ULTIMATE.start_main_#t~nondet13#1, ULTIMATE.start_main_#t~nondet15#1, ULTIMATE.start_create_fresh_uint_array_~i~3#1, ULTIMATE.start_main_~#t1~0#1.base, thread2Thread1of1ForFork0_#t~post3, #length, old(#length), ULTIMATE.start_main_~#t2~0#1.base, thread3Thread1of1ForFork1_~cond~0, write~int_#sizeOfWrittenType, ~A~0.base, old(~A~0.base), thread1_#in~_argptr.offset, thread2_#in~_argptr.offset, thread3_#in~_argptr.offset, thread3Thread1of1ForFork1_~i~2, ULTIMATE.start_main_~#t3~0#1.base, thread3Thread1of1ForFork1_thidvar0, old(thread3Thread1of1ForFork1_thidvar0), thread3Thread1of1ForFork1_thidvar1, old(thread3Thread1of1ForFork1_thidvar1), thread3Thread1of1ForFork1_thidvar2, old(thread3Thread1of1ForFork1_thidvar2), thread3Thread1of1ForFork1_thidvar3, old(thread3Thread1of1ForFork1_thidvar3), #StackHeapBarrier, old(#StackHeapBarrier), thread1Thread1of1ForFork2_#res.base, thread1_#t~post1, thread2_#t~post3, thread3_#t~post6, thread1Thread1of1ForFork2_#in~_argptr.offset, write~int_#ptr.offset, #Ultimate.allocOnHeap_~size, ~csum~0, old(~csum~0), thread3Thread1of1ForFork1_#res.offset, #memory_int, old(#memory_int), thread1Thread1of1ForFork2_#t~post1, ~C~0.base, old(~C~0.base), #Ultimate.allocOnStack_#res.base, thread2Thread1of1ForFork0_~i~1, thread3Thread1of1ForFork1_~_argptr.offset, read~int_#ptr.offset, ULTIMATE.start_create_fresh_uint_array_#res#1.base], Protected Variables before encountering a loop: [] - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 7 procedures, 221 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 872.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 864.5s, 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: 251, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 2418 NumberOfCodeBlocks, 2388 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3447 ConstructedInterpolants, 0 QuantifiedInterpolants, 8071 SizeOfPredicates, 67 NumberOfNonLiveVariables, 2229 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 808/1209 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