/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 20:44:56,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 20:44:56,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 20:44:56,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 20:44:56,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 20:44:56,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 20:44:56,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 20:44:56,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 20:44:56,958 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 20:44:56,958 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 20:44:56,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 20:44:56,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 20:44:56,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 20:44:56,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 20:44:56,959 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 20:44:56,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 20:44:56,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 20:44:56,966 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 20:44:56,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 20:44:56,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 20:44:56,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 20:44:56,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 20:44:56,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 20:44:56,968 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 20:44:56,968 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 20:44:56,968 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 20:44:56,968 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 20:44:56,968 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 20:44:56,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 20:44:56,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 20:44:56,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 20:44:56,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 20:44:56,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 20:44:56,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 20:44:56,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 20:44:56,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 20:44:56,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 20:44:56,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 20:44:56,970 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 20:44:56,971 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 20:44:56,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 20:44:56,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 20:44:56,971 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 20:44:56,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 20:44:56,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 20:44:56,972 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 20:44:56,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 20:44:57,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 20:44:57,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 20:44:57,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 20:44:57,128 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 20:44:57,128 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 20:44:57,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2023-12-24 20:44:58,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 20:44:58,318 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 20:44:58,318 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2023-12-24 20:44:58,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aae35020/6e3f8d26fb1c460cb0c1d7e441960523/FLAG75d933a03 [2023-12-24 20:44:58,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aae35020/6e3f8d26fb1c460cb0c1d7e441960523 [2023-12-24 20:44:58,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 20:44:58,350 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 20:44:58,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 20:44:58,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 20:44:58,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 20:44:58,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297f02aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58, skipping insertion in model container [2023-12-24 20:44:58,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,403 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 20:44:58,629 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-1.i[22634,22647] [2023-12-24 20:44:58,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 20:44:58,699 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 20:44:58,721 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-1.i[22634,22647] [2023-12-24 20:44:58,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 20:44:58,767 INFO L206 MainTranslator]: Completed translation [2023-12-24 20:44:58,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58 WrapperNode [2023-12-24 20:44:58,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 20:44:58,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 20:44:58,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 20:44:58,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 20:44:58,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,804 INFO L138 Inliner]: procedures = 141, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 232 [2023-12-24 20:44:58,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 20:44:58,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 20:44:58,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 20:44:58,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 20:44:58,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,852 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]. [2023-12-24 20:44:58,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 20:44:58,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 20:44:58,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 20:44:58,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 20:44:58,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (1/1) ... [2023-12-24 20:44:58,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 20:44:58,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 20:44:58,907 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) [2023-12-24 20:44:58,911 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 [2023-12-24 20:44:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-12-24 20:44:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-12-24 20:44:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2023-12-24 20:44:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2023-12-24 20:44:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2023-12-24 20:44:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-24 20:44:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-24 20:44:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2023-12-24 20:44:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2023-12-24 20:44:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2023-12-24 20:44:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 20:44:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 20:44:59,042 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 20:44:59,044 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 20:44:59,432 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 20:44:59,465 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 20:44:59,465 INFO L309 CfgBuilder]: Removed 38 assume(true) statements. [2023-12-24 20:44:59,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:44:59 BoogieIcfgContainer [2023-12-24 20:44:59,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 20:44:59,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 20:44:59,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 20:44:59,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 20:44:59,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 08:44:58" (1/3) ... [2023-12-24 20:44:59,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630cf198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:44:59, skipping insertion in model container [2023-12-24 20:44:59,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:44:58" (2/3) ... [2023-12-24 20:44:59,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630cf198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:44:59, skipping insertion in model container [2023-12-24 20:44:59,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:44:59" (3/3) ... [2023-12-24 20:44:59,472 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2023-12-24 20:44:59,485 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 20:44:59,485 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 20:44:59,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 20:44:59,524 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;@4dec141d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 20:44:59,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 20:44:59,528 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) [2023-12-24 20:44:59,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-24 20:44:59,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:44:59,535 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] [2023-12-24 20:44:59,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:44:59,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:44:59,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1364741834, now seen corresponding path program 1 times [2023-12-24 20:44:59,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:44:59,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049101920] [2023-12-24 20:44:59,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:44:59,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:44:59,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:44:59,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:44:59,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 20:44:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:44:59,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 20:44:59,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:44:59,853 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-24 20:44:59,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 20:44:59,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:44:59,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049101920] [2023-12-24 20:44:59,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049101920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 20:44:59,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 20:44:59,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 20:44:59,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449225150] [2023-12-24 20:44:59,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 20:44:59,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 20:44:59,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:44:59,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 20:44:59,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 20:44:59,887 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 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-24 20:45:00,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:45:00,012 INFO L93 Difference]: Finished difference Result 231 states and 409 transitions. [2023-12-24 20:45:00,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 20:45:00,015 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-12-24 20:45:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:45:00,020 INFO L225 Difference]: With dead ends: 231 [2023-12-24 20:45:00,020 INFO L226 Difference]: Without dead ends: 112 [2023-12-24 20:45:00,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 20:45:00,028 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 20:45:00,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 20:45:00,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-24 20:45:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2023-12-24 20:45:00,063 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) [2023-12-24 20:45:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 141 transitions. [2023-12-24 20:45:00,065 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 141 transitions. Word has length 30 [2023-12-24 20:45:00,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:45:00,066 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 141 transitions. [2023-12-24 20:45:00,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-24 20:45:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 141 transitions. [2023-12-24 20:45:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-24 20:45:00,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:45:00,067 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] [2023-12-24 20:45:00,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 20:45:00,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:00,272 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:45:00,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:45:00,273 INFO L85 PathProgramCache]: Analyzing trace with hash 208543916, now seen corresponding path program 1 times [2023-12-24 20:45:00,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:45:00,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691057346] [2023-12-24 20:45:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:45:00,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:00,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:45:00,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:45:00,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 20:45:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:45:00,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 20:45:00,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:45:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-24 20:45:00,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 20:45:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-24 20:45:00,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:45:00,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691057346] [2023-12-24 20:45:00,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691057346] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 20:45:00,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 20:45:00,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-12-24 20:45:00,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867937234] [2023-12-24 20:45:00,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 20:45:00,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 20:45:00,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:45:00,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 20:45:00,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-24 20:45:00,736 INFO L87 Difference]: Start difference. First operand 112 states and 141 transitions. Second operand has 6 states, 4 states have (on average 5.75) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-24 20:45:01,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:45:01,089 INFO L93 Difference]: Finished difference Result 234 states and 308 transitions. [2023-12-24 20:45:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 20:45:01,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.75) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 31 [2023-12-24 20:45:01,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:45:01,091 INFO L225 Difference]: With dead ends: 234 [2023-12-24 20:45:01,091 INFO L226 Difference]: Without dead ends: 124 [2023-12-24 20:45:01,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-24 20:45:01,093 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 16 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 20:45:01,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 487 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 20:45:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-24 20:45:01,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-12-24 20:45:01,102 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) [2023-12-24 20:45:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2023-12-24 20:45:01,103 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 31 [2023-12-24 20:45:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:45:01,104 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2023-12-24 20:45:01,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.75) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-24 20:45:01,104 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2023-12-24 20:45:01,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-24 20:45:01,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:45:01,106 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] [2023-12-24 20:45:01,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 20:45:01,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:01,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:45:01,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:45:01,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1337816308, now seen corresponding path program 1 times [2023-12-24 20:45:01,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:45:01,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701368351] [2023-12-24 20:45:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:45:01,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:01,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:45:01,315 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:45:01,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 20:45:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:45:01,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-24 20:45:01,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:45:01,783 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 [2023-12-24 20:45:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 68 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-24 20:45:01,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 20:45:02,961 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 [2023-12-24 20:45:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 13 proven. 60 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-24 20:45:02,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:45:02,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701368351] [2023-12-24 20:45:02,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701368351] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 20:45:02,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 20:45:02,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2023-12-24 20:45:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118635751] [2023-12-24 20:45:02,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 20:45:02,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-24 20:45:02,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:45:02,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-24 20:45:02,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-12-24 20:45:02,997 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 16 states, 15 states have (on average 4.0) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-24 20:45:04,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:45:04,213 INFO L93 Difference]: Finished difference Result 253 states and 323 transitions. [2023-12-24 20:45:04,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-24 20:45:04,213 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 91 [2023-12-24 20:45:04,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:45:04,214 INFO L225 Difference]: With dead ends: 253 [2023-12-24 20:45:04,214 INFO L226 Difference]: Without dead ends: 133 [2023-12-24 20:45:04,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2023-12-24 20:45:04,216 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 118 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-24 20:45:04,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 733 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-24 20:45:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-24 20:45:04,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2023-12-24 20:45:04,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 96 states have (on average 1.2708333333333333) internal successors, (122), 114 states have internal predecessors, (122), 27 states have call successors, (27), 9 states have call predecessors, (27), 8 states have return successors, (14), 11 states have call predecessors, (14), 13 states have call successors, (14) [2023-12-24 20:45:04,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 163 transitions. [2023-12-24 20:45:04,224 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 163 transitions. Word has length 91 [2023-12-24 20:45:04,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:45:04,224 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 163 transitions. [2023-12-24 20:45:04,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-24 20:45:04,224 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 163 transitions. [2023-12-24 20:45:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-24 20:45:04,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:45:04,226 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] [2023-12-24 20:45:04,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-24 20:45:04,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:04,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:45:04,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:45:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash -786406196, now seen corresponding path program 1 times [2023-12-24 20:45:04,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:45:04,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517365189] [2023-12-24 20:45:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:45:04,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:45:04,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:45:04,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 20:45:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:45:04,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-24 20:45:04,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:45:04,766 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 [2023-12-24 20:45:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 29 proven. 21 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-24 20:45:04,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 20:45:05,609 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 [2023-12-24 20:45:05,618 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 [2023-12-24 20:45:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 27 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-24 20:45:05,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:45:05,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517365189] [2023-12-24 20:45:05,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517365189] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 20:45:05,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 20:45:05,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 19 [2023-12-24 20:45:05,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260848995] [2023-12-24 20:45:05,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 20:45:05,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-24 20:45:05,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:45:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-24 20:45:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-12-24 20:45:05,672 INFO L87 Difference]: Start difference. First operand 132 states and 163 transitions. Second operand has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 8 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-24 20:45:07,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:45:07,338 INFO L93 Difference]: Finished difference Result 277 states and 346 transitions. [2023-12-24 20:45:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-24 20:45:07,339 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 8 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 91 [2023-12-24 20:45:07,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:45:07,341 INFO L225 Difference]: With dead ends: 277 [2023-12-24 20:45:07,341 INFO L226 Difference]: Without dead ends: 145 [2023-12-24 20:45:07,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=871, Unknown=0, NotChecked=0, Total=1056 [2023-12-24 20:45:07,342 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 143 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-24 20:45:07,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 839 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-24 20:45:07,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-12-24 20:45:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2023-12-24 20:45:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 104 states have (on average 1.25) internal successors, (130), 122 states have internal predecessors, (130), 29 states have call successors, (29), 11 states have call predecessors, (29), 10 states have return successors, (18), 13 states have call predecessors, (18), 15 states have call successors, (18) [2023-12-24 20:45:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 177 transitions. [2023-12-24 20:45:07,351 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 177 transitions. Word has length 91 [2023-12-24 20:45:07,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:45:07,351 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 177 transitions. [2023-12-24 20:45:07,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 8 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-24 20:45:07,351 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 177 transitions. [2023-12-24 20:45:07,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-24 20:45:07,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:45:07,353 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] [2023-12-24 20:45:07,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 20:45:07,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:07,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:45:07,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:45:07,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1034552690, now seen corresponding path program 1 times [2023-12-24 20:45:07,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:45:07,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137967300] [2023-12-24 20:45:07,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:45:07,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:07,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:45:07,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:45:07,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 20:45:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:45:07,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-24 20:45:07,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:45:08,028 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 [2023-12-24 20:45:08,066 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 [2023-12-24 20:45:08,121 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-24 20:45:08,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 20:45:08,466 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 [2023-12-24 20:45:08,475 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 [2023-12-24 20:45:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-24 20:45:08,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:45:08,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137967300] [2023-12-24 20:45:08,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137967300] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 20:45:08,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 20:45:08,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2023-12-24 20:45:08,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907592722] [2023-12-24 20:45:08,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 20:45:08,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-24 20:45:08,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:45:08,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-24 20:45:08,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-12-24 20:45:08,561 INFO L87 Difference]: Start difference. First operand 144 states and 177 transitions. Second operand has 13 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-24 20:45:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:45:09,646 INFO L93 Difference]: Finished difference Result 254 states and 315 transitions. [2023-12-24 20:45:09,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-24 20:45:09,646 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 91 [2023-12-24 20:45:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:45:09,648 INFO L225 Difference]: With dead ends: 254 [2023-12-24 20:45:09,648 INFO L226 Difference]: Without dead ends: 201 [2023-12-24 20:45:09,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-24 20:45:09,649 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 82 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-24 20:45:09,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1462 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-24 20:45:09,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-24 20:45:09,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 168. [2023-12-24 20:45:09,663 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) [2023-12-24 20:45:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2023-12-24 20:45:09,664 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 91 [2023-12-24 20:45:09,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:45:09,664 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2023-12-24 20:45:09,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-24 20:45:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2023-12-24 20:45:09,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-24 20:45:09,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:45:09,666 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] [2023-12-24 20:45:09,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 20:45:09,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:09,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:45:09,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:45:09,875 INFO L85 PathProgramCache]: Analyzing trace with hash 67289600, now seen corresponding path program 1 times [2023-12-24 20:45:09,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:45:09,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526194054] [2023-12-24 20:45:09,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:45:09,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:45:09,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:45:09,877 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:45:09,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 20:45:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:45:10,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 132 conjunts are in the unsatisfiable core [2023-12-24 20:45:10,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:45:10,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2023-12-24 20:45:10,704 WARN L876 $PredicateComparison]: unable to prove that (exists ((|##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| (_ bv1 1)))) is different from true [2023-12-24 20:45:17,667 INFO L349 Elim1Store]: treesize reduction 413, result has 34.3 percent of original size [2023-12-24 20:45:17,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 85 treesize of output 371 [2023-12-24 20:47:00,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 20:47:00,234 INFO L224 Elim1Store]: Index analysis took 139 ms [2023-12-24 20:47:00,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 20:47:00,258 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:00,259 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:00,260 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:00,261 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:00,487 INFO L349 Elim1Store]: treesize reduction 255, result has 3.8 percent of original size [2023-12-24 20:47:00,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 64 treesize of output 61 [2023-12-24 20:47:00,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 20:47:00,888 INFO L224 Elim1Store]: Index analysis took 243 ms [2023-12-24 20:47:00,960 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:00,962 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:00,962 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,081 INFO L349 Elim1Store]: treesize reduction 232, result has 0.4 percent of original size [2023-12-24 20:47:01,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 59 treesize of output 49 [2023-12-24 20:47:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 20:47:01,288 INFO L224 Elim1Store]: Index analysis took 112 ms [2023-12-24 20:47:01,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 20:47:01,311 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,312 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,313 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,313 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,314 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,474 INFO L349 Elim1Store]: treesize reduction 257, result has 1.5 percent of original size [2023-12-24 20:47:01,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 51 [2023-12-24 20:47:01,586 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,589 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-12-24 20:47:01,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 13 [2023-12-24 20:47:01,677 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,678 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,679 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:01,821 INFO L349 Elim1Store]: treesize reduction 185, result has 5.1 percent of original size [2023-12-24 20:47:01,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 61 treesize of output 56 [2023-12-24 20:47:01,933 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:02,412 INFO L349 Elim1Store]: treesize reduction 490, result has 8.8 percent of original size [2023-12-24 20:47:02,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 1309 treesize of output 1255 [2023-12-24 20:47:04,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 20:47:04,797 INFO L224 Elim1Store]: Index analysis took 267 ms [2023-12-24 20:47:04,810 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:04,811 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:04,812 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:47:05,327 INFO L349 Elim1Store]: treesize reduction 444, result has 3.3 percent of original size [2023-12-24 20:47:05,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 76 treesize of output 73 [2023-12-24 20:47:05,588 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-24 20:47:24,853 WARN L293 SmtUtils]: Spent 19.21s on a formula simplification. DAG size of input: 377 DAG size of output: 143 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-24 20:47:24,853 INFO L349 Elim1Store]: treesize reduction 1183, result has 18.8 percent of original size [2023-12-24 20:47:24,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 269 treesize of output 910 Received shutdown request... [2023-12-24 20:59:35,890 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 20:59:35,900 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 20:59:35,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 20:59:35,915 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 20:59:36,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:59:36,101 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 6,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-56-3-3-10-4-10-3-10-3-10-1 context. [2023-12-24 20:59:36,105 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-24 20:59:36,107 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 20:59:36,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 08:59:36 BoogieIcfgContainer [2023-12-24 20:59:36,109 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 20:59:36,110 INFO L158 Benchmark]: Toolchain (without parser) took 877759.21ms. Allocated memory was 202.4MB in the beginning and 902.8MB in the end (delta: 700.4MB). Free memory was 164.4MB in the beginning and 489.1MB in the end (delta: -324.6MB). Peak memory consumption was 550.8MB. Max. memory is 8.0GB. [2023-12-24 20:59:36,110 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 202.4MB. Free memory is still 159.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 20:59:36,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.13ms. Allocated memory is still 202.4MB. Free memory was 164.4MB in the beginning and 143.0MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-24 20:59:36,110 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.32ms. Allocated memory is still 202.4MB. Free memory was 143.0MB in the beginning and 140.3MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 20:59:36,110 INFO L158 Benchmark]: Boogie Preprocessor took 72.40ms. Allocated memory is still 202.4MB. Free memory was 140.3MB in the beginning and 133.5MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-24 20:59:36,110 INFO L158 Benchmark]: RCFGBuilder took 587.80ms. Allocated memory is still 202.4MB. Free memory was 133.5MB in the beginning and 97.9MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-24 20:59:36,110 INFO L158 Benchmark]: TraceAbstraction took 876642.23ms. Allocated memory was 202.4MB in the beginning and 902.8MB in the end (delta: 700.4MB). Free memory was 97.3MB in the beginning and 489.1MB in the end (delta: -391.7MB). Peak memory consumption was 483.7MB. Max. memory is 8.0GB. [2023-12-24 20:59:36,111 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 202.4MB. Free memory is still 159.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 416.13ms. Allocated memory is still 202.4MB. Free memory was 164.4MB in the beginning and 143.0MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.32ms. Allocated memory is still 202.4MB. Free memory was 143.0MB in the beginning and 140.3MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.40ms. Allocated memory is still 202.4MB. Free memory was 140.3MB in the beginning and 133.5MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 587.80ms. Allocated memory is still 202.4MB. Free memory was 133.5MB in the beginning and 97.9MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 876642.23ms. Allocated memory was 202.4MB in the beginning and 902.8MB in the end (delta: 700.4MB). Free memory was 97.3MB in the beginning and 489.1MB in the end (delta: -391.7MB). Peak memory consumption was 483.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 547). Cancelled while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 6,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-56-3-3-10-4-10-3-10-3-10-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 117 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 876.6s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 365 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 359 mSDsluCounter, 3657 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3077 mSDsCounter, 149 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2157 IncrementalHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 149 mSolverCounterUnsat, 580 mSDtfsCounter, 2157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 665 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=5, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 629 ConstructedInterpolants, 0 QuantifiedInterpolants, 1727 SizeOfPredicates, 41 NumberOfNonLiveVariables, 2602 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 594/720 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