/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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-77.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 10:50:12,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 10:50:12,754 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 10:50:12,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 10:50:12,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 10:50:12,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 10:50:12,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 10:50:12,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 10:50:12,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 10:50:12,793 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 10:50:12,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 10:50:12,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 10:50:12,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 10:50:12,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 10:50:12,795 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 10:50:12,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 10:50:12,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 10:50:12,796 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 10:50:12,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 10:50:12,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 10:50:12,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 10:50:12,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 10:50:12,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 10:50:12,797 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 10:50:12,798 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 10:50:12,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 10:50:12,798 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 10:50:12,798 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 10:50:12,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 10:50:12,799 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 10:50:12,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 10:50:12,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 10:50:12,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 10:50:12,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 10:50:12,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:50:12,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 10:50:12,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 10:50:12,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 10:50:12,801 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 10:50:12,802 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 10:50:12,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 10:50:12,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 10:50:12,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 10:50:12,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 10:50:12,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 10:50:12,803 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 10:50:12,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 10:50:13,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 10:50:13,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 10:50:13,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 10:50:13,071 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 10:50:13,071 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 10:50:13,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-77.i [2023-12-16 10:50:14,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 10:50:14,486 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 10:50:14,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-77.i [2023-12-16 10:50:14,494 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06ed3ea6/9823dc2c25ad444fa7e360eeb3535299/FLAG86c3fcd17 [2023-12-16 10:50:14,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06ed3ea6/9823dc2c25ad444fa7e360eeb3535299 [2023-12-16 10:50:14,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 10:50:14,506 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 10:50:14,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 10:50:14,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 10:50:14,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 10:50:14,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0d1f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14, skipping insertion in model container [2023-12-16 10:50:14,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 10:50:14,689 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-77.i[916,929] [2023-12-16 10:50:14,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:50:14,792 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 10:50:14,801 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-77.i[916,929] [2023-12-16 10:50:14,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:50:14,850 INFO L206 MainTranslator]: Completed translation [2023-12-16 10:50:14,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14 WrapperNode [2023-12-16 10:50:14,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 10:50:14,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 10:50:14,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 10:50:14,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 10:50:14,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,914 INFO L138 Inliner]: procedures = 27, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 279 [2023-12-16 10:50:14,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 10:50:14,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 10:50:14,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 10:50:14,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 10:50:14,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,939 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,957 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 10:50:14,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:14,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 10:50:14,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 10:50:14,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 10:50:14,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 10:50:14,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (1/1) ... [2023-12-16 10:50:15,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:50:15,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 10:50:15,027 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) [2023-12-16 10:50:15,034 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 [2023-12-16 10:50:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 10:50:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 10:50:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 10:50:15,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 10:50:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 10:50:15,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 10:50:15,144 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 10:50:15,147 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 10:50:17,347 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 10:50:17,398 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 10:50:17,398 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 10:50:17,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:50:17 BoogieIcfgContainer [2023-12-16 10:50:17,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 10:50:17,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 10:50:17,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 10:50:17,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 10:50:17,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:50:14" (1/3) ... [2023-12-16 10:50:17,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84844b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:50:17, skipping insertion in model container [2023-12-16 10:50:17,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:14" (2/3) ... [2023-12-16 10:50:17,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84844b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:50:17, skipping insertion in model container [2023-12-16 10:50:17,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:50:17" (3/3) ... [2023-12-16 10:50:17,406 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-77.i [2023-12-16 10:50:17,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 10:50:17,418 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 10:50:17,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 10:50:17,467 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;@7a80f427, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 10:50:17,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 10:50:17,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 74 states have internal predecessors, (111), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 10:50:17,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-12-16 10:50:17,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:17,488 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:17,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:17,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:17,494 INFO L85 PathProgramCache]: Analyzing trace with hash -790696939, now seen corresponding path program 1 times [2023-12-16 10:50:17,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:17,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446017976] [2023-12-16 10:50:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:17,511 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 [2023-12-16 10:50:17,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:17,513 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) [2023-12-16 10:50:17,514 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 [2023-12-16 10:50:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:17,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 10:50:17,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2023-12-16 10:50:17,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:17,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:17,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446017976] [2023-12-16 10:50:17,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446017976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:17,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:50:17,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 10:50:17,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583570188] [2023-12-16 10:50:17,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:17,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 10:50:17,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:18,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 10:50:18,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 10:50:18,028 INFO L87 Difference]: Start difference. First operand has 123 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 74 states have internal predecessors, (111), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:18,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:18,306 INFO L93 Difference]: Finished difference Result 243 states and 455 transitions. [2023-12-16 10:50:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 10:50:18,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47) Word has length 288 [2023-12-16 10:50:18,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:18,329 INFO L225 Difference]: With dead ends: 243 [2023-12-16 10:50:18,329 INFO L226 Difference]: Without dead ends: 121 [2023-12-16 10:50:18,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 10:50:18,334 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:18,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 197 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 10:50:18,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-16 10:50:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-12-16 10:50:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 72 states have (on average 1.4722222222222223) internal successors, (106), 72 states have internal predecessors, (106), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 10:50:18,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 200 transitions. [2023-12-16 10:50:18,371 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 200 transitions. Word has length 288 [2023-12-16 10:50:18,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:18,372 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 200 transitions. [2023-12-16 10:50:18,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:18,372 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 200 transitions. [2023-12-16 10:50:18,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-12-16 10:50:18,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:18,376 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:18,386 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 [2023-12-16 10:50:18,586 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 [2023-12-16 10:50:18,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:18,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash 563831691, now seen corresponding path program 1 times [2023-12-16 10:50:18,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:18,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445193681] [2023-12-16 10:50:18,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:18,590 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 [2023-12-16 10:50:18,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:18,591 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) [2023-12-16 10:50:18,620 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 [2023-12-16 10:50:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:18,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 10:50:18,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-16 10:50:19,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:19,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:19,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445193681] [2023-12-16 10:50:19,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445193681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:19,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:50:19,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 10:50:19,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816034221] [2023-12-16 10:50:19,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:19,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 10:50:19,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:19,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 10:50:19,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 10:50:19,032 INFO L87 Difference]: Start difference. First operand 121 states and 200 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:19,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:19,386 INFO L93 Difference]: Finished difference Result 240 states and 397 transitions. [2023-12-16 10:50:19,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 10:50:19,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 288 [2023-12-16 10:50:19,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:19,403 INFO L225 Difference]: With dead ends: 240 [2023-12-16 10:50:19,403 INFO L226 Difference]: Without dead ends: 120 [2023-12-16 10:50:19,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 10:50:19,405 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:19,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 382 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 10:50:19,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-16 10:50:19,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-12-16 10:50:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 71 states have (on average 1.4507042253521127) internal successors, (103), 71 states have internal predecessors, (103), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 10:50:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 197 transitions. [2023-12-16 10:50:19,422 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 197 transitions. Word has length 288 [2023-12-16 10:50:19,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:19,423 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 197 transitions. [2023-12-16 10:50:19,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 197 transitions. [2023-12-16 10:50:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-12-16 10:50:19,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:19,427 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:19,437 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 [2023-12-16 10:50:19,634 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 [2023-12-16 10:50:19,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:19,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:19,635 INFO L85 PathProgramCache]: Analyzing trace with hash 571458187, now seen corresponding path program 1 times [2023-12-16 10:50:19,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:19,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062802325] [2023-12-16 10:50:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:19,637 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 [2023-12-16 10:50:19,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:19,638 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) [2023-12-16 10:50:19,640 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 [2023-12-16 10:50:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:19,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 10:50:19,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:20,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-16 10:50:20,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:20,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:20,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062802325] [2023-12-16 10:50:20,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062802325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:20,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:50:20,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 10:50:20,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036921297] [2023-12-16 10:50:20,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:20,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 10:50:20,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:20,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 10:50:20,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 10:50:20,134 INFO L87 Difference]: Start difference. First operand 120 states and 197 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:20,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:20,876 INFO L93 Difference]: Finished difference Result 313 states and 514 transitions. [2023-12-16 10:50:20,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 10:50:20,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 288 [2023-12-16 10:50:20,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:20,878 INFO L225 Difference]: With dead ends: 313 [2023-12-16 10:50:20,878 INFO L226 Difference]: Without dead ends: 194 [2023-12-16 10:50:20,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 10:50:20,880 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 153 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:20,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 619 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 10:50:20,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-16 10:50:20,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2023-12-16 10:50:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 122 states have (on average 1.4754098360655739) internal successors, (180), 123 states have internal predecessors, (180), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 10:50:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 312 transitions. [2023-12-16 10:50:20,898 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 312 transitions. Word has length 288 [2023-12-16 10:50:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:20,899 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 312 transitions. [2023-12-16 10:50:20,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 312 transitions. [2023-12-16 10:50:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-12-16 10:50:20,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:20,902 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:20,926 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 10:50:21,110 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 [2023-12-16 10:50:21,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:21,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:21,111 INFO L85 PathProgramCache]: Analyzing trace with hash 712006797, now seen corresponding path program 1 times [2023-12-16 10:50:21,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:21,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903490578] [2023-12-16 10:50:21,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:21,112 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 [2023-12-16 10:50:21,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:21,113 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) [2023-12-16 10:50:21,117 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 [2023-12-16 10:50:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:21,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 10:50:21,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 1338 proven. 24 refuted. 0 times theorem prover too weak. 2962 trivial. 0 not checked. [2023-12-16 10:50:22,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:50:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-16 10:50:22,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:22,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903490578] [2023-12-16 10:50:22,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903490578] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 10:50:22,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 10:50:22,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-16 10:50:22,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172574282] [2023-12-16 10:50:22,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:22,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 10:50:22,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:22,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 10:50:22,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-16 10:50:22,398 INFO L87 Difference]: Start difference. First operand 191 states and 312 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:25,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:25,292 INFO L93 Difference]: Finished difference Result 885 states and 1430 transitions. [2023-12-16 10:50:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 10:50:25,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 288 [2023-12-16 10:50:25,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:25,301 INFO L225 Difference]: With dead ends: 885 [2023-12-16 10:50:25,301 INFO L226 Difference]: Without dead ends: 695 [2023-12-16 10:50:25,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 10:50:25,303 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 455 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:25,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 654 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 10:50:25,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2023-12-16 10:50:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 348. [2023-12-16 10:50:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 237 states have (on average 1.5358649789029535) internal successors, (364), 240 states have internal predecessors, (364), 106 states have call successors, (106), 4 states have call predecessors, (106), 4 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-16 10:50:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 576 transitions. [2023-12-16 10:50:25,365 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 576 transitions. Word has length 288 [2023-12-16 10:50:25,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:25,365 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 576 transitions. [2023-12-16 10:50:25,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 576 transitions. [2023-12-16 10:50:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-12-16 10:50:25,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:25,368 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:25,382 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 [2023-12-16 10:50:25,577 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 [2023-12-16 10:50:25,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:25,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:25,579 INFO L85 PathProgramCache]: Analyzing trace with hash -876341105, now seen corresponding path program 1 times [2023-12-16 10:50:25,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:25,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425364728] [2023-12-16 10:50:25,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:25,579 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 [2023-12-16 10:50:25,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:25,581 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) [2023-12-16 10:50:25,585 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 [2023-12-16 10:50:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:25,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 10:50:25,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-16 10:50:26,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:26,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425364728] [2023-12-16 10:50:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425364728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:26,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:50:26,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 10:50:26,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78847818] [2023-12-16 10:50:26,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:26,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 10:50:26,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 10:50:26,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 10:50:26,021 INFO L87 Difference]: Start difference. First operand 348 states and 576 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:28,710 INFO L93 Difference]: Finished difference Result 1255 states and 2050 transitions. [2023-12-16 10:50:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 10:50:28,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 288 [2023-12-16 10:50:28,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:28,716 INFO L225 Difference]: With dead ends: 1255 [2023-12-16 10:50:28,716 INFO L226 Difference]: Without dead ends: 908 [2023-12-16 10:50:28,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 10:50:28,718 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 629 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:28,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 659 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 10:50:28,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2023-12-16 10:50:28,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 348. [2023-12-16 10:50:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 237 states have (on average 1.5358649789029535) internal successors, (364), 240 states have internal predecessors, (364), 106 states have call successors, (106), 4 states have call predecessors, (106), 4 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-16 10:50:28,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 576 transitions. [2023-12-16 10:50:28,778 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 576 transitions. Word has length 288 [2023-12-16 10:50:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:28,782 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 576 transitions. [2023-12-16 10:50:28,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 576 transitions. [2023-12-16 10:50:28,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-12-16 10:50:28,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:28,788 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:28,797 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 (6)] Ended with exit code 0 [2023-12-16 10:50:28,996 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 [2023-12-16 10:50:28,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:28,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:28,997 INFO L85 PathProgramCache]: Analyzing trace with hash 187560632, now seen corresponding path program 1 times [2023-12-16 10:50:28,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:28,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776860896] [2023-12-16 10:50:28,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:28,998 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 [2023-12-16 10:50:28,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:28,999 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) [2023-12-16 10:50:29,000 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 [2023-12-16 10:50:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:29,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 10:50:29,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 1338 proven. 24 refuted. 0 times theorem prover too weak. 2962 trivial. 0 not checked. [2023-12-16 10:50:29,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:50:30,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:30,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776860896] [2023-12-16 10:50:30,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776860896] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 10:50:30,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1851239524] [2023-12-16 10:50:30,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:30,408 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 10:50:30,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 10:50:30,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 10:50:30,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-16 10:50:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:31,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 10:50:31,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:31,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-16 10:50:31,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:31,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1851239524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:31,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 10:50:31,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2023-12-16 10:50:31,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194432748] [2023-12-16 10:50:31,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:31,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 10:50:31,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:31,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 10:50:31,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 10:50:31,985 INFO L87 Difference]: Start difference. First operand 348 states and 576 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:35,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:35,447 INFO L93 Difference]: Finished difference Result 1435 states and 2351 transitions. [2023-12-16 10:50:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 10:50:35,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 289 [2023-12-16 10:50:35,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:35,456 INFO L225 Difference]: With dead ends: 1435 [2023-12-16 10:50:35,456 INFO L226 Difference]: Without dead ends: 1088 [2023-12-16 10:50:35,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 593 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 10:50:35,461 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 399 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:35,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 780 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 10:50:35,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2023-12-16 10:50:35,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 687. [2023-12-16 10:50:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 466 states have (on average 1.5343347639484979) internal successors, (715), 472 states have internal predecessors, (715), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 206 states have call predecessors, (212), 212 states have call successors, (212) [2023-12-16 10:50:35,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1139 transitions. [2023-12-16 10:50:35,551 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1139 transitions. Word has length 289 [2023-12-16 10:50:35,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:35,551 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 1139 transitions. [2023-12-16 10:50:35,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 10:50:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1139 transitions. [2023-12-16 10:50:35,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-12-16 10:50:35,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:35,554 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:35,564 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 [2023-12-16 10:50:35,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-16 10:50:35,970 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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 10:50:35,971 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:35,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1857314169, now seen corresponding path program 1 times [2023-12-16 10:50:35,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:35,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710862447] [2023-12-16 10:50:35,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:35,972 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 [2023-12-16 10:50:35,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:35,974 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-16 10:50:35,975 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 (9)] Waiting until timeout for monitored process [2023-12-16 10:50:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:36,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-16 10:50:36,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 10:51:28,232 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 [2023-12-16 10:51:28,233 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:51:29,260 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 10:51:29,433 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 10:51:29,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 10:51:29,444 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 10:51:29,445 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 290 with TraceHistMax 47,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2023-12-16 10:51:29,448 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:51:29,449 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 10:51:29,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 10:51:29 BoogieIcfgContainer [2023-12-16 10:51:29,451 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 10:51:29,452 INFO L158 Benchmark]: Toolchain (without parser) took 74945.52ms. Allocated memory was 259.0MB in the beginning and 327.2MB in the end (delta: 68.2MB). Free memory was 209.5MB in the beginning and 158.7MB in the end (delta: 50.8MB). Peak memory consumption was 119.7MB. Max. memory is 8.0GB. [2023-12-16 10:51:29,453 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 187.7MB. Free memory was 136.1MB in the beginning and 136.0MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 10:51:29,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.22ms. Allocated memory is still 259.0MB. Free memory was 209.5MB in the beginning and 191.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 10:51:29,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.64ms. Allocated memory is still 259.0MB. Free memory was 191.2MB in the beginning and 188.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 10:51:29,457 INFO L158 Benchmark]: Boogie Preprocessor took 72.14ms. Allocated memory is still 259.0MB. Free memory was 188.5MB in the beginning and 184.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 10:51:29,458 INFO L158 Benchmark]: RCFGBuilder took 2412.71ms. Allocated memory is still 259.0MB. Free memory was 184.3MB in the beginning and 151.3MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-16 10:51:29,458 INFO L158 Benchmark]: TraceAbstraction took 72049.84ms. Allocated memory was 259.0MB in the beginning and 327.2MB in the end (delta: 68.2MB). Free memory was 150.3MB in the beginning and 158.7MB in the end (delta: -8.4MB). Peak memory consumption was 61.0MB. Max. memory is 8.0GB. [2023-12-16 10:51:29,460 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 187.7MB. Free memory was 136.1MB in the beginning and 136.0MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 342.22ms. Allocated memory is still 259.0MB. Free memory was 209.5MB in the beginning and 191.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.64ms. Allocated memory is still 259.0MB. Free memory was 191.2MB in the beginning and 188.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.14ms. Allocated memory is still 259.0MB. Free memory was 188.5MB in the beginning and 184.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 2412.71ms. Allocated memory is still 259.0MB. Free memory was 184.3MB in the beginning and 151.3MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 72049.84ms. Allocated memory was 259.0MB in the beginning and 327.2MB in the end (delta: 68.2MB). Free memory was 150.3MB in the beginning and 158.7MB in the end (delta: -8.4MB). Peak memory consumption was 61.0MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 290 with TraceHistMax 47,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.0s, OverallIterations: 7, TraceHistogramMax: 47, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1639 SdHoareTripleChecker+Valid, 9.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1639 mSDsluCounter, 3291 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1856 mSDsCounter, 468 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 829 IncrementalHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 468 mSolverCounterUnsat, 1435 mSDtfsCounter, 829 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2336 GetRequests, 2304 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred in iteration=6, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 1311 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2018 NumberOfCodeBlocks, 2018 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2298 ConstructedInterpolants, 31 QuantifiedInterpolants, 5246 SizeOfPredicates, 29 NumberOfNonLiveVariables, 3245 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 34544/34592 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