/usr/bin/java -Xmx7000000000 -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/chl-poker-hand-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 05:56:28,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 05:56:28,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-07 05:56:28,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 05:56:28,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 05:56:28,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 05:56:28,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 05:56:28,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 05:56:28,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 05:56:28,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 05:56:28,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 05:56:28,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 05:56:28,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 05:56:28,949 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 05:56:28,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 05:56:28,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 05:56:28,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 05:56:28,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 05:56:28,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 05:56:28,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 05:56:28,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 05:56:28,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 05:56:28,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 05:56:28,953 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 05:56:28,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 05:56:28,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 05:56:28,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 05:56:28,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 05:56:28,954 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 05:56:28,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 05:56:28,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 05:56:28,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 05:56:28,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 05:56:28,955 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-07 05:56:28,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 05:56:28,956 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 05:56:28,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 05:56:28,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 05:56:28,957 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 05:56:28,957 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 05:56:28,957 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-07 05:56:28,957 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 05:56:29,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 05:56:29,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 05:56:29,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 05:56:29,180 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 05:56:29,180 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 05:56:29,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-09-07 05:56:30,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 05:56:30,474 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 05:56:30,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-09-07 05:56:30,490 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150357ee9/adc5cde480a94ac5a33fd620dc75455b/FLAG9cadc5c5e [2023-09-07 05:56:30,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150357ee9/adc5cde480a94ac5a33fd620dc75455b [2023-09-07 05:56:30,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 05:56:30,507 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 05:56:30,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 05:56:30,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 05:56:30,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 05:56:30,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:30,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5896d5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30, skipping insertion in model container [2023-09-07 05:56:30,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:30,554 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 05:56:30,812 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c[19262,19275] [2023-09-07 05:56:30,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 05:56:30,827 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 05:56:30,924 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c[19262,19275] [2023-09-07 05:56:30,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 05:56:30,962 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 05:56:30,963 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 05:56:30,968 INFO L206 MainTranslator]: Completed translation [2023-09-07 05:56:30,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30 WrapperNode [2023-09-07 05:56:30,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 05:56:30,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 05:56:30,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 05:56:30,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 05:56:30,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:30,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,084 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2377 [2023-09-07 05:56:31,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 05:56:31,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 05:56:31,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 05:56:31,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 05:56:31,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 05:56:31,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 05:56:31,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 05:56:31,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 05:56:31,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (1/1) ... [2023-09-07 05:56:31,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 05:56:31,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:56:31,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 05:56:31,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 05:56:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 05:56:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 05:56:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 05:56:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 05:56:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 05:56:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 05:56:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 05:56:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 05:56:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-07 05:56:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-07 05:56:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 05:56:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 05:56:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 05:56:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 05:56:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 05:56:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 05:56:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 05:56:31,286 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 05:56:31,499 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 05:56:31,500 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 05:56:33,224 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 05:56:35,272 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 05:56:35,273 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-09-07 05:56:35,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 05:56:35 BoogieIcfgContainer [2023-09-07 05:56:35,275 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 05:56:35,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 05:56:35,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 05:56:35,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 05:56:35,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 05:56:30" (1/3) ... [2023-09-07 05:56:35,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9ff7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 05:56:35, skipping insertion in model container [2023-09-07 05:56:35,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:56:30" (2/3) ... [2023-09-07 05:56:35,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9ff7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 05:56:35, skipping insertion in model container [2023-09-07 05:56:35,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 05:56:35" (3/3) ... [2023-09-07 05:56:35,282 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-subst.wvr.c [2023-09-07 05:56:35,289 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 05:56:35,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 05:56:35,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 05:56:35,297 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 05:56:35,656 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-07 05:56:35,699 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 05:56:35,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 05:56:35,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:56:35,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 05:56:35,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 05:56:35,832 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 05:56:35,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 05:56:35,845 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;@17473f73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 05:56:35,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2023-09-07 05:56:35,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:56:35,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:56:35,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1997469075, now seen corresponding path program 1 times [2023-09-07 05:56:35,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:56:35,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056707265] [2023-09-07 05:56:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:56:35,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:56:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:56:36,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:56:36,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:56:36,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056707265] [2023-09-07 05:56:36,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056707265] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 05:56:36,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 05:56:36,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 05:56:36,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050920936] [2023-09-07 05:56:36,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:56:36,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 05:56:36,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:56:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 05:56:36,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 05:56:36,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:36,490 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:56:36,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 228.5) internal successors, (457), 2 states have internal predecessors, (457), 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) [2023-09-07 05:56:36,491 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 [2023-09-07 05:56:36,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:36,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 05:56:36,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:56:36,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:56:36,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1748313521, now seen corresponding path program 1 times [2023-09-07 05:56:36,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:56:36,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239769448] [2023-09-07 05:56:36,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:56:36,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:56:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:56:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 05:56:37,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:56:37,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239769448] [2023-09-07 05:56:37,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239769448] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 05:56:37,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 05:56:37,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 05:56:37,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819132323] [2023-09-07 05:56:37,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:56:37,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 05:56:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:56:37,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 05:56:37,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-07 05:56:37,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:37,126 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:56:37,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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) [2023-09-07 05:56:37,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:37,126 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 [2023-09-07 05:56:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 05:56:37,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 05:56:37,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:56:37,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:56:37,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1175966652, now seen corresponding path program 1 times [2023-09-07 05:56:37,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:56:37,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190928403] [2023-09-07 05:56:37,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:56:37,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:56:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:56:38,189 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-07 05:56:38,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:56:38,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190928403] [2023-09-07 05:56:38,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190928403] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:56:38,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210713628] [2023-09-07 05:56:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:56:38,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:56:38,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:56:38,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:56:38,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 05:56:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:56:38,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-07 05:56:38,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:56:39,141 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-07 05:56:39,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 05:56:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-07 05:56:39,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210713628] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 05:56:39,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 05:56:39,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-09-07 05:56:39,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119199063] [2023-09-07 05:56:39,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 05:56:39,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-09-07 05:56:39,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:56:39,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-09-07 05:56:39,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-09-07 05:56:39,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:39,307 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:56:39,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 40.35294117647059) internal successors, (686), 17 states have internal predecessors, (686), 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) [2023-09-07 05:56:39,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:39,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 05:56:39,308 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 [2023-09-07 05:56:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 05:56:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-07 05:56:40,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-07 05:56:40,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-09-07 05:56:40,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:56:40,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:56:40,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1162682749, now seen corresponding path program 1 times [2023-09-07 05:56:40,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:56:40,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226156320] [2023-09-07 05:56:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:56:40,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:56:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:56:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-09-07 05:56:41,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:56:41,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226156320] [2023-09-07 05:56:41,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226156320] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:56:41,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199954465] [2023-09-07 05:56:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:56:41,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:56:41,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:56:41,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:56:41,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 05:56:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:56:42,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 12 conjunts are in the unsatisfiable core [2023-09-07 05:56:42,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:56:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-09-07 05:56:42,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 05:56:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-09-07 05:56:42,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199954465] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 05:56:42,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 05:56:42,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-09-07 05:56:42,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558876604] [2023-09-07 05:56:42,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 05:56:42,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-09-07 05:56:42,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:56:42,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-09-07 05:56:42,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2023-09-07 05:56:42,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:42,863 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:56:42,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 24.75) internal successors, (594), 24 states have internal predecessors, (594), 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) [2023-09-07 05:56:42,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:42,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 05:56:42,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-09-07 05:56:42,864 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 [2023-09-07 05:56:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 05:56:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-07 05:56:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-09-07 05:56:43,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-07 05:56:44,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:56:44,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:56:44,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:56:44,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1377610233, now seen corresponding path program 2 times [2023-09-07 05:56:44,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:56:44,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535318363] [2023-09-07 05:56:44,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:56:44,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:56:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:56:45,375 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 97 proven. 29 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2023-09-07 05:56:45,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:56:45,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535318363] [2023-09-07 05:56:45,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535318363] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:56:45,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229717497] [2023-09-07 05:56:45,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 05:56:45,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:56:45,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:56:45,382 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:56:45,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 05:56:46,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-07 05:56:46,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 05:56:46,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-07 05:56:46,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:56:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2023-09-07 05:56:46,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 05:56:46,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229717497] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 05:56:46,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 05:56:46,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2023-09-07 05:56:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699825708] [2023-09-07 05:56:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:56:46,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 05:56:46,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:56:46,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 05:56:46,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-09-07 05:56:46,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:46,090 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:56:46,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2023-09-07 05:56:46,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:56:46,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 05:56:46,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-09-07 05:56:46,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-09-07 05:56:46,093 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 [2023-09-07 06:00:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 06:00:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 06:00:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-07 06:00:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-09-07 06:00:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 06:00:41,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-07 06:00:42,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 06:00:42,062 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 06:00:42,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 06:00:42,063 INFO L85 PathProgramCache]: Analyzing trace with hash -128049392, now seen corresponding path program 1 times [2023-09-07 06:00:42,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 06:00:42,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405431096] [2023-09-07 06:00:42,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 06:00:42,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 06:00:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 06:00:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 97 proven. 29 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2023-09-07 06:00:43,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 06:00:43,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405431096] [2023-09-07 06:00:43,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405431096] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 06:00:43,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676544967] [2023-09-07 06:00:43,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 06:00:43,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 06:00:43,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 06:00:43,470 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 06:00:43,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-07 06:00:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 06:00:44,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 14 conjunts are in the unsatisfiable core [2023-09-07 06:00:44,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 06:00:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2023-09-07 06:00:44,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 06:00:44,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676544967] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 06:00:44,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 06:00:44,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 26 [2023-09-07 06:00:44,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070284451] [2023-09-07 06:00:44,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 06:00:44,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-09-07 06:00:44,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 06:00:44,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-09-07 06:00:44,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2023-09-07 06:00:44,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 06:00:44,700 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 06:00:44,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.06666666666667) internal successors, (571), 15 states have internal predecessors, (571), 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) [2023-09-07 06:00:44,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 06:00:44,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 06:00:44,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-09-07 06:00:44,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-09-07 06:00:44,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 06:00:44,717 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 Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 06:04:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 06:04:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 06:04:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-07 06:04:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-09-07 06:04:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 06:04:54,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-07 06:04:54,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-09-07 06:04:54,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 06:04:54,982 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 06:04:54,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 06:04:54,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1661323582, now seen corresponding path program 2 times [2023-09-07 06:04:54,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 06:04:54,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907387967] [2023-09-07 06:04:54,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 06:04:54,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 06:04:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 06:04:57,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2023-09-07 06:04:57,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 06:04:57,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907387967] [2023-09-07 06:04:57,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907387967] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 06:04:57,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707262594] [2023-09-07 06:04:57,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 06:04:57,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 06:04:57,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 06:04:57,861 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 06:04:57,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-07 06:04:58,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-07 06:04:58,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 06:04:58,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-07 06:04:58,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 06:04:58,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1063 trivial. 0 not checked. [2023-09-07 06:04:58,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 06:04:58,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707262594] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 06:04:58,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 06:04:58,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 18 [2023-09-07 06:04:58,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509693819] [2023-09-07 06:04:58,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 06:04:58,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 06:04:58,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 06:04:59,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 06:04:59,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-09-07 06:04:59,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 06:04:59,005 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 06:04:59,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 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) [2023-09-07 06:04:59,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 06:04:59,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 06:04:59,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-09-07 06:04:59,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-09-07 06:04:59,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 06:04:59,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-09-07 06:04:59,007 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 Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Received shutdown request... [2023-09-07 06:10:15,549 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2023-09-07 06:10:15,549 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 06:10:15,550 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 06:10:16,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-09-07 06:10:16,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-07 06:10:16,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-09-07 06:10:17,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-07 06:10:17,222 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2023-09-07 06:10:17,224 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 06:10:17,285 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-09-07 06:10:17,286 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/4) [2023-09-07 06:10:17,288 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-07 06:10:17,288 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-07 06:10:17,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 06:10:17 BasicIcfg [2023-09-07 06:10:17,290 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-07 06:10:17,291 INFO L158 Benchmark]: Toolchain (without parser) took 826786.44ms. Allocated memory was 162.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 104.6MB in the beginning and 367.8MB in the end (delta: -263.3MB). Peak memory consumption was 1.4GB. Max. memory is 7.0GB. [2023-09-07 06:10:17,291 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 162.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 06:10:17,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.67ms. Allocated memory was 162.5MB in the beginning and 238.0MB in the end (delta: 75.5MB). Free memory was 104.3MB in the beginning and 203.4MB in the end (delta: -99.1MB). Peak memory consumption was 31.6MB. Max. memory is 7.0GB. [2023-09-07 06:10:17,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.83ms. Allocated memory is still 238.0MB. Free memory was 203.4MB in the beginning and 197.0MB in the end (delta: 6.3MB). Peak memory consumption was 11.2MB. Max. memory is 7.0GB. [2023-09-07 06:10:17,292 INFO L158 Benchmark]: Boogie Preprocessor took 110.14ms. Allocated memory is still 238.0MB. Free memory was 197.0MB in the beginning and 186.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 7.0GB. [2023-09-07 06:10:17,292 INFO L158 Benchmark]: RCFGBuilder took 4079.32ms. Allocated memory was 238.0MB in the beginning and 331.4MB in the end (delta: 93.3MB). Free memory was 186.4MB in the beginning and 180.1MB in the end (delta: 6.3MB). Peak memory consumption was 196.8MB. Max. memory is 7.0GB. [2023-09-07 06:10:17,293 INFO L158 Benchmark]: TraceAbstraction took 822013.61ms. Allocated memory was 331.4MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 179.0MB in the beginning and 367.8MB in the end (delta: -188.8MB). Peak memory consumption was 1.3GB. Max. memory is 7.0GB. [2023-09-07 06:10:17,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 162.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 459.67ms. Allocated memory was 162.5MB in the beginning and 238.0MB in the end (delta: 75.5MB). Free memory was 104.3MB in the beginning and 203.4MB in the end (delta: -99.1MB). Peak memory consumption was 31.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 114.83ms. Allocated memory is still 238.0MB. Free memory was 203.4MB in the beginning and 197.0MB in the end (delta: 6.3MB). Peak memory consumption was 11.2MB. Max. memory is 7.0GB. * Boogie Preprocessor took 110.14ms. Allocated memory is still 238.0MB. Free memory was 197.0MB in the beginning and 186.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 7.0GB. * RCFGBuilder took 4079.32ms. Allocated memory was 238.0MB in the beginning and 331.4MB in the end (delta: 93.3MB). Free memory was 186.4MB in the beginning and 180.1MB in the end (delta: 6.3MB). Peak memory consumption was 196.8MB. Max. memory is 7.0GB. * TraceAbstraction took 822013.61ms. Allocated memory was 331.4MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 179.0MB in the beginning and 367.8MB in the end (delta: -188.8MB). Peak memory consumption was 1.3GB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 55030, independent: 51548, independent conditional: 51548, independent unconditional: 0, dependent: 3482, dependent conditional: 3482, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 51548, independent: 51548, independent conditional: 51548, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 51548, independent: 51548, independent conditional: 51548, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 51548, independent: 51548, independent conditional: 0, independent unconditional: 51548, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 51548, independent: 51548, independent conditional: 0, independent unconditional: 51548, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 51548, independent: 51548, independent conditional: 0, independent unconditional: 51548, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 51548, independent: 51548, independent conditional: 0, independent unconditional: 51548, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 51548, independent: 51548, independent conditional: 0, independent unconditional: 51548, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 51548, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 51548, unknown conditional: 0, unknown unconditional: 51548] , Statistics on independence cache: Total cache size (in pairs): 51548, Positive cache size: 51548, Positive conditional cache size: 0, Positive unconditional cache size: 51548, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3482 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 17, RedundantProofs: 4, ProvenStates: 1001 - TimeoutResultAtElement [Line: 344]: Timeout (TraceAbstraction) Unable to prove that 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, 801 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 821.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 806.7s, 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: 75, 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: 0.8s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 8481 NumberOfCodeBlocks, 7597 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 9683 ConstructedInterpolants, 0 QuantifiedInterpolants, 11509 SizeOfPredicates, 29 NumberOfNonLiveVariables, 6396 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 5708/6051 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