/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 16:28:31,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 16:28:31,506 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 16:28:31,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 16:28:31,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 16:28:31,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 16:28:31,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 16:28:31,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 16:28:31,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 16:28:31,538 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 16:28:31,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 16:28:31,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 16:28:31,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 16:28:31,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 16:28:31,539 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 16:28:31,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 16:28:31,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 16:28:31,540 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 16:28:31,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 16:28:31,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 16:28:31,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 16:28:31,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 16:28:31,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 16:28:31,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 16:28:31,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 16:28:31,542 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 16:28:31,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 16:28:31,542 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 16:28:31,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 16:28:31,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 16:28:31,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 16:28:31,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 16:28:31,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 16:28:31,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 16:28:31,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 16:28:31,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 16:28:31,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 16:28:31,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 16:28:31,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 16:28:31,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 16:28:31,545 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 16:28:31,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 16:28:31,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 16:28:31,545 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 16:28:31,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 16:28:31,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 16:28:31,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 16:28:31,751 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 16:28:31,751 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 16:28:31,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2023-12-19 16:28:32,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 16:28:32,866 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 16:28:32,867 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2023-12-19 16:28:32,883 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317c4d27e/3d345007c2ec4ae099414d6389cadd45/FLAGb39b63a70 [2023-12-19 16:28:32,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317c4d27e/3d345007c2ec4ae099414d6389cadd45 [2023-12-19 16:28:32,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 16:28:32,900 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 16:28:32,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 16:28:32,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 16:28:32,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 16:28:32,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:28:32" (1/1) ... [2023-12-19 16:28:32,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269ad569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:32, skipping insertion in model container [2023-12-19 16:28:32,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:28:32" (1/1) ... [2023-12-19 16:28:32,949 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 16:28:33,151 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i[22634,22647] [2023-12-19 16:28:33,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 16:28:33,209 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 16:28:33,246 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i[22634,22647] [2023-12-19 16:28:33,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 16:28:33,283 INFO L206 MainTranslator]: Completed translation [2023-12-19 16:28:33,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33 WrapperNode [2023-12-19 16:28:33,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 16:28:33,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 16:28:33,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 16:28:33,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 16:28:33,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,322 INFO L138 Inliner]: procedures = 140, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 231 [2023-12-19 16:28:33,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 16:28:33,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 16:28:33,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 16:28:33,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 16:28:33,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,337 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,357 INFO L175 MemorySlicer]: Split 48 memory accesses to 3 slices as follows [2, 40, 6]. 83 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 1]. The 13 writes are split as follows [0, 11, 2]. [2023-12-19 16:28:33,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 16:28:33,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 16:28:33,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 16:28:33,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 16:28:33,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (1/1) ... [2023-12-19 16:28:33,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 16:28:33,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:28:33,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 16:28:33,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 16:28:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-12-19 16:28:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2023-12-19 16:28:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2023-12-19 16:28:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-19 16:28:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-19 16:28:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2023-12-19 16:28:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2023-12-19 16:28:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2023-12-19 16:28:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2023-12-19 16:28:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 16:28:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 16:28:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 16:28:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 16:28:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 16:28:33,563 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 16:28:33,565 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 16:28:33,919 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 16:28:33,960 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 16:28:33,961 INFO L309 CfgBuilder]: Removed 38 assume(true) statements. [2023-12-19 16:28:33,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:28:33 BoogieIcfgContainer [2023-12-19 16:28:33,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 16:28:33,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 16:28:33,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 16:28:33,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 16:28:33,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:28:32" (1/3) ... [2023-12-19 16:28:33,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c17e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:28:33, skipping insertion in model container [2023-12-19 16:28:33,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:28:33" (2/3) ... [2023-12-19 16:28:33,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c17e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:28:33, skipping insertion in model container [2023-12-19 16:28:33,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:28:33" (3/3) ... [2023-12-19 16:28:33,969 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2023-12-19 16:28:33,981 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 16:28:33,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 16:28:34,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 16:28:34,038 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@373b4c00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 16:28:34,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 16:28:34,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 85 states have (on average 1.8) internal successors, (153), 105 states have internal predecessors, (153), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 16:28:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-19 16:28:34,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:28:34,047 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:28:34,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:28:34,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:28:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1364741834, now seen corresponding path program 1 times [2023-12-19 16:28:34,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:28:34,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047792369] [2023-12-19 16:28:34,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:28:34,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:28:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:34,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 16:28:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-19 16:28:34,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:28:34,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047792369] [2023-12-19 16:28:34,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047792369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:28:34,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:28:34,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 16:28:34,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470127036] [2023-12-19 16:28:34,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:28:34,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 16:28:34,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:28:34,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 16:28:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:28:34,382 INFO L87 Difference]: Start difference. First operand has 117 states, 85 states have (on average 1.8) internal successors, (153), 105 states have internal predecessors, (153), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 16:28:34,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:28:34,585 INFO L93 Difference]: Finished difference Result 231 states and 409 transitions. [2023-12-19 16:28:34,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 16:28:34,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-12-19 16:28:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:28:34,592 INFO L225 Difference]: With dead ends: 231 [2023-12-19 16:28:34,592 INFO L226 Difference]: Without dead ends: 112 [2023-12-19 16:28:34,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 16:28:34,597 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 38 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:28:34,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 149 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 16:28:34,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-19 16:28:34,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2023-12-19 16:28:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 100 states have internal predecessors, (107), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-19 16:28:34,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 141 transitions. [2023-12-19 16:28:34,640 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 141 transitions. Word has length 30 [2023-12-19 16:28:34,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:28:34,641 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 141 transitions. [2023-12-19 16:28:34,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 16:28:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 141 transitions. [2023-12-19 16:28:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-19 16:28:34,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:28:34,642 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:28:34,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 16:28:34,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:28:34,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:28:34,643 INFO L85 PathProgramCache]: Analyzing trace with hash 208543916, now seen corresponding path program 1 times [2023-12-19 16:28:34,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:28:34,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612298082] [2023-12-19 16:28:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:28:34,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:28:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:34,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:35,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:35,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 16:28:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:35,135 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 16:28:35,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:28:35,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612298082] [2023-12-19 16:28:35,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612298082] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:28:35,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801270104] [2023-12-19 16:28:35,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:28:35,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:28:35,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:28:35,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 16:28:35,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 16:28:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:35,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 16:28:35,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:28:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 16:28:35,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 16:28:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 16:28:35,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801270104] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 16:28:35,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 16:28:35,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2023-12-19 16:28:35,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589640526] [2023-12-19 16:28:35,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 16:28:35,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 16:28:35,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:28:35,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 16:28:35,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 16:28:35,512 INFO L87 Difference]: Start difference. First operand 112 states and 141 transitions. Second operand has 7 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-19 16:28:35,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:28:35,790 INFO L93 Difference]: Finished difference Result 234 states and 308 transitions. [2023-12-19 16:28:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 16:28:35,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 31 [2023-12-19 16:28:35,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:28:35,794 INFO L225 Difference]: With dead ends: 234 [2023-12-19 16:28:35,794 INFO L226 Difference]: Without dead ends: 124 [2023-12-19 16:28:35,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-19 16:28:35,799 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 55 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 16:28:35,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 294 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 16:28:35,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-19 16:28:35,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-12-19 16:28:35,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 107 states have internal predecessors, (115), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 16:28:35,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2023-12-19 16:28:35,819 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 31 [2023-12-19 16:28:35,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:28:35,819 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2023-12-19 16:28:35,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-19 16:28:35,819 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2023-12-19 16:28:35,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 16:28:35,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:28:35,823 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:28:35,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 16:28:36,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:28:36,029 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:28:36,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:28:36,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1337816308, now seen corresponding path program 1 times [2023-12-19 16:28:36,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:28:36,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175419143] [2023-12-19 16:28:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:28:36,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:28:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:37,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:28:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:37,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-19 16:28:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-19 16:28:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 16:28:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:37,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 16:28:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:28:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:38,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-19 16:28:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:38,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-19 16:28:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 16:28:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 12 proven. 56 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-19 16:28:38,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:28:38,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175419143] [2023-12-19 16:28:38,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175419143] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:28:38,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611939727] [2023-12-19 16:28:38,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:28:38,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:28:38,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:28:38,107 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) [2023-12-19 16:28:38,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 16:28:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:38,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-19 16:28:38,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:28:38,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-19 16:28:38,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-12-19 16:28:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 29 proven. 5 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-19 16:28:38,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 16:28:38,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2023-12-19 16:28:38,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2023-12-19 16:28:38,954 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-19 16:28:38,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611939727] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 16:28:38,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 16:28:38,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 13] total 23 [2023-12-19 16:28:38,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437791157] [2023-12-19 16:28:38,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 16:28:38,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-19 16:28:38,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:28:38,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-19 16:28:38,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2023-12-19 16:28:38,957 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 23 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 20 states have internal predecessors, (63), 8 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2023-12-19 16:28:39,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:28:39,972 INFO L93 Difference]: Finished difference Result 317 states and 407 transitions. [2023-12-19 16:28:39,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-19 16:28:39,973 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 20 states have internal predecessors, (63), 8 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) Word has length 91 [2023-12-19 16:28:39,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:28:39,974 INFO L225 Difference]: With dead ends: 317 [2023-12-19 16:28:39,974 INFO L226 Difference]: Without dead ends: 197 [2023-12-19 16:28:39,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=1265, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 16:28:39,975 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 165 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 16:28:39,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1434 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 16:28:39,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-19 16:28:39,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 158. [2023-12-19 16:28:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 27 states have call successors, (27), 11 states have call predecessors, (27), 9 states have return successors, (14), 11 states have call predecessors, (14), 13 states have call successors, (14) [2023-12-19 16:28:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 195 transitions. [2023-12-19 16:28:39,993 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 195 transitions. Word has length 91 [2023-12-19 16:28:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:28:39,993 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 195 transitions. [2023-12-19 16:28:39,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 20 states have internal predecessors, (63), 8 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2023-12-19 16:28:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 195 transitions. [2023-12-19 16:28:39,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 16:28:39,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:28:39,994 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:28:40,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 16:28:40,203 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 [2023-12-19 16:28:40,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:28:40,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:28:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash 960775938, now seen corresponding path program 1 times [2023-12-19 16:28:40,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:28:40,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100861011] [2023-12-19 16:28:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:28:40,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:28:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:40,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:28:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-19 16:28:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-19 16:28:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 16:28:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 16:28:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:28:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-19 16:28:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-19 16:28:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 16:28:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 25 proven. 19 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-19 16:28:41,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:28:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100861011] [2023-12-19 16:28:41,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100861011] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:28:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172694337] [2023-12-19 16:28:41,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:28:41,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:28:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:28:41,712 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) [2023-12-19 16:28:41,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 16:28:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:42,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-19 16:28:42,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:28:42,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-19 16:28:42,176 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 29 proven. 23 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-19 16:28:42,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 16:28:42,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2023-12-19 16:28:42,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2023-12-19 16:28:42,763 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 27 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-19 16:28:42,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172694337] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 16:28:42,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 16:28:42,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 25 [2023-12-19 16:28:42,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607759618] [2023-12-19 16:28:42,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 16:28:42,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-19 16:28:42,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:28:42,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-19 16:28:42,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2023-12-19 16:28:42,765 INFO L87 Difference]: Start difference. First operand 158 states and 195 transitions. Second operand has 25 states, 20 states have (on average 2.8) internal successors, (56), 18 states have internal predecessors, (56), 12 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (15), 9 states have call predecessors, (15), 11 states have call successors, (15) [2023-12-19 16:28:43,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:28:43,629 INFO L93 Difference]: Finished difference Result 324 states and 402 transitions. [2023-12-19 16:28:43,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-19 16:28:43,629 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 2.8) internal successors, (56), 18 states have internal predecessors, (56), 12 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (15), 9 states have call predecessors, (15), 11 states have call successors, (15) Word has length 94 [2023-12-19 16:28:43,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:28:43,630 INFO L225 Difference]: With dead ends: 324 [2023-12-19 16:28:43,630 INFO L226 Difference]: Without dead ends: 169 [2023-12-19 16:28:43,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=256, Invalid=1466, Unknown=0, NotChecked=0, Total=1722 [2023-12-19 16:28:43,632 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 87 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 16:28:43,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1299 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 16:28:43,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-19 16:28:43,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 168. [2023-12-19 16:28:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 127 states have (on average 1.2519685039370079) internal successors, (159), 144 states have internal predecessors, (159), 29 states have call successors, (29), 12 states have call predecessors, (29), 11 states have return successors, (18), 13 states have call predecessors, (18), 15 states have call successors, (18) [2023-12-19 16:28:43,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2023-12-19 16:28:43,642 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 94 [2023-12-19 16:28:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:28:43,642 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2023-12-19 16:28:43,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 2.8) internal successors, (56), 18 states have internal predecessors, (56), 12 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (15), 9 states have call predecessors, (15), 11 states have call successors, (15) [2023-12-19 16:28:43,642 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2023-12-19 16:28:43,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 16:28:43,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:28:43,643 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:28:43,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 16:28:43,852 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 [2023-12-19 16:28:43,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:28:43,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:28:43,852 INFO L85 PathProgramCache]: Analyzing trace with hash 67289600, now seen corresponding path program 1 times [2023-12-19 16:28:43,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:28:43,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140770112] [2023-12-19 16:28:43,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:28:43,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:28:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:46,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:47,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:28:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-19 16:28:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-19 16:28:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:53,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 16:28:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:54,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 16:28:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:28:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-19 16:28:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-19 16:28:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:58,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 16:28:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 16:28:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:28:58,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 16:28:58,899 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkInductivity(InterpolantChecker.java:409) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:395) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:154) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:869) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:793) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:379) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:379) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:379) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:379) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:379) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:379) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-19 16:28:58,902 INFO L158 Benchmark]: Toolchain (without parser) took 26002.06ms. Allocated memory was 196.1MB in the beginning and 1.0GB in the end (delta: 826.3MB). Free memory was 154.8MB in the beginning and 934.1MB in the end (delta: -779.3MB). Peak memory consumption was 614.9MB. Max. memory is 8.0GB. [2023-12-19 16:28:58,902 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 196.1MB. Free memory was 151.8MB in the beginning and 151.7MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 16:28:58,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.53ms. Allocated memory is still 196.1MB. Free memory was 154.5MB in the beginning and 134.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 16:28:58,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.65ms. Allocated memory is still 196.1MB. Free memory was 134.6MB in the beginning and 131.8MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 16:28:58,902 INFO L158 Benchmark]: Boogie Preprocessor took 55.66ms. Allocated memory is still 196.1MB. Free memory was 131.8MB in the beginning and 125.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-19 16:28:58,903 INFO L158 Benchmark]: RCFGBuilder took 582.48ms. Allocated memory is still 196.1MB. Free memory was 125.5MB in the beginning and 94.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-19 16:28:58,903 INFO L158 Benchmark]: TraceAbstraction took 24938.75ms. Allocated memory was 196.1MB in the beginning and 1.0GB in the end (delta: 826.3MB). Free memory was 93.6MB in the beginning and 934.1MB in the end (delta: -840.5MB). Peak memory consumption was 554.1MB. Max. memory is 8.0GB. [2023-12-19 16:28:58,904 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 196.1MB. Free memory was 151.8MB in the beginning and 151.7MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 382.53ms. Allocated memory is still 196.1MB. Free memory was 154.5MB in the beginning and 134.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.65ms. Allocated memory is still 196.1MB. Free memory was 134.6MB in the beginning and 131.8MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.66ms. Allocated memory is still 196.1MB. Free memory was 131.8MB in the beginning and 125.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 582.48ms. Allocated memory is still 196.1MB. Free memory was 125.5MB in the beginning and 94.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 24938.75ms. Allocated memory was 196.1MB in the beginning and 1.0GB in the end (delta: 826.3MB). Free memory was 93.6MB in the beginning and 934.1MB in the end (delta: -840.5MB). Peak memory consumption was 554.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkInductivity(InterpolantChecker.java:409) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-19 16:28:58,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...