/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-25_file-59.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 03:48:49,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 03:48:49,086 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 03:48:49,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 03:48:49,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 03:48:49,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 03:48:49,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 03:48:49,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 03:48:49,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 03:48:49,118 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 03:48:49,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 03:48:49,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 03:48:49,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 03:48:49,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 03:48:49,121 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 03:48:49,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 03:48:49,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 03:48:49,121 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 03:48:49,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 03:48:49,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 03:48:49,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 03:48:49,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 03:48:49,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 03:48:49,123 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 03:48:49,123 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 03:48:49,123 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 03:48:49,124 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 03:48:49,124 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 03:48:49,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 03:48:49,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 03:48:49,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 03:48:49,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 03:48:49,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 03:48:49,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 03:48:49,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 03:48:49,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 03:48:49,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 03:48:49,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 03:48:49,126 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 03:48:49,126 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 03:48:49,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 03:48:49,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 03:48:49,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 03:48:49,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 03:48:49,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 03:48:49,127 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 03:48:49,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 03:48:49,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 03:48:49,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 03:48:49,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 03:48:49,356 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 03:48:49,356 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 03:48:49,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-59.i [2023-12-23 03:48:50,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 03:48:50,656 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 03:48:50,657 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-59.i [2023-12-23 03:48:50,666 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d0179391/c1aa526a6d0e4203b07d4b7f9a2586bf/FLAG6d39eb460 [2023-12-23 03:48:50,676 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d0179391/c1aa526a6d0e4203b07d4b7f9a2586bf [2023-12-23 03:48:50,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 03:48:50,678 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 03:48:50,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 03:48:50,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 03:48:50,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 03:48:50,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:50,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f39e1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50, skipping insertion in model container [2023-12-23 03:48:50,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:50,717 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 03:48:50,837 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-25_file-59.i[915,928] [2023-12-23 03:48:50,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 03:48:50,921 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 03:48:50,932 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-25_file-59.i[915,928] [2023-12-23 03:48:50,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 03:48:50,990 INFO L206 MainTranslator]: Completed translation [2023-12-23 03:48:50,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50 WrapperNode [2023-12-23 03:48:50,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 03:48:50,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 03:48:50,992 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 03:48:50,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 03:48:50,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,041 INFO L138 Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 190 [2023-12-23 03:48:51,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 03:48:51,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 03:48:51,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 03:48:51,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 03:48:51,051 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,054 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,065 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]. [2023-12-23 03:48:51,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 03:48:51,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 03:48:51,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 03:48:51,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 03:48:51,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (1/1) ... [2023-12-23 03:48:51,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 03:48:51,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 03:48:51,142 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) [2023-12-23 03:48:51,179 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 [2023-12-23 03:48:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 03:48:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 03:48:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 03:48:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 03:48:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 03:48:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 03:48:51,256 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 03:48:51,258 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 03:48:51,859 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 03:48:51,894 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 03:48:51,895 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 03:48:51,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:48:51 BoogieIcfgContainer [2023-12-23 03:48:51,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 03:48:51,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 03:48:51,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 03:48:51,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 03:48:51,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:48:50" (1/3) ... [2023-12-23 03:48:51,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233838ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:48:51, skipping insertion in model container [2023-12-23 03:48:51,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:48:50" (2/3) ... [2023-12-23 03:48:51,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233838ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:48:51, skipping insertion in model container [2023-12-23 03:48:51,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:48:51" (3/3) ... [2023-12-23 03:48:51,906 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-59.i [2023-12-23 03:48:51,936 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 03:48:51,936 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 03:48:51,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 03:48:52,001 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;@df295f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 03:48:52,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 03:48:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 47 states have internal predecessors, (67), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-23 03:48:52,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-23 03:48:52,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:48:52,019 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:48:52,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:48:52,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:48:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash 790099463, now seen corresponding path program 1 times [2023-12-23 03:48:52,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:48:52,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220147286] [2023-12-23 03:48:52,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:48:52,035 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 [2023-12-23 03:48:52,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:48:52,037 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) [2023-12-23 03:48:52,038 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 [2023-12-23 03:48:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:48:52,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 03:48:52,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:48:52,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 712 proven. 0 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2023-12-23 03:48:52,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:48:52,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:48:52,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220147286] [2023-12-23 03:48:52,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220147286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:48:52,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 03:48:52,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 03:48:52,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570385970] [2023-12-23 03:48:52,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:48:52,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 03:48:52,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:48:52,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 03:48:52,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 03:48:52,430 INFO L87 Difference]: Start difference. First operand has 76 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 47 states have internal predecessors, (67), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-23 03:48:52,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:48:52,835 INFO L93 Difference]: Finished difference Result 149 states and 267 transitions. [2023-12-23 03:48:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 03:48:52,852 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 170 [2023-12-23 03:48:52,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:48:52,857 INFO L225 Difference]: With dead ends: 149 [2023-12-23 03:48:52,858 INFO L226 Difference]: Without dead ends: 74 [2023-12-23 03:48:52,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 03:48:52,862 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 03:48:52,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 03:48:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-12-23 03:48:52,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-12-23 03:48:52,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 45 states have internal predecessors, (61), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-23 03:48:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 115 transitions. [2023-12-23 03:48:52,908 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 115 transitions. Word has length 170 [2023-12-23 03:48:52,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:48:52,909 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 115 transitions. [2023-12-23 03:48:52,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-23 03:48:52,910 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 115 transitions. [2023-12-23 03:48:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-23 03:48:52,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:48:52,916 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:48:52,925 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 [2023-12-23 03:48:53,124 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 [2023-12-23 03:48:53,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:48:53,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:48:53,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1284123647, now seen corresponding path program 1 times [2023-12-23 03:48:53,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:48:53,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942272055] [2023-12-23 03:48:53,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:48:53,126 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 [2023-12-23 03:48:53,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:48:53,127 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) [2023-12-23 03:48:53,155 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 [2023-12-23 03:48:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:48:53,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 03:48:53,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:48:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 582 proven. 24 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2023-12-23 03:48:53,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:48:53,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:48:53,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942272055] [2023-12-23 03:48:53,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942272055] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:48:53,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [222300672] [2023-12-23 03:48:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:48:53,721 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:48:53,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:48:53,790 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 03:48:53,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 03:48:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:48:54,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 03:48:54,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:48:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-12-23 03:48:54,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:48:54,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [222300672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:48:54,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 03:48:54,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2023-12-23 03:48:54,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24563989] [2023-12-23 03:48:54,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:48:54,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 03:48:54,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:48:54,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 03:48:54,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-23 03:48:54,509 INFO L87 Difference]: Start difference. First operand 74 states and 115 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-23 03:48:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:48:55,320 INFO L93 Difference]: Finished difference Result 221 states and 344 transitions. [2023-12-23 03:48:55,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 03:48:55,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2023-12-23 03:48:55,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:48:55,352 INFO L225 Difference]: With dead ends: 221 [2023-12-23 03:48:55,352 INFO L226 Difference]: Without dead ends: 148 [2023-12-23 03:48:55,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-23 03:48:55,354 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 68 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-23 03:48:55,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 324 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-23 03:48:55,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-23 03:48:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 130. [2023-12-23 03:48:55,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 73 states have internal predecessors, (94), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-23 03:48:55,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 202 transitions. [2023-12-23 03:48:55,376 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 202 transitions. Word has length 170 [2023-12-23 03:48:55,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:48:55,377 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 202 transitions. [2023-12-23 03:48:55,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-23 03:48:55,377 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 202 transitions. [2023-12-23 03:48:55,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-23 03:48:55,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:48:55,379 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:48:55,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-23 03:48:55,595 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 [2023-12-23 03:48:55,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-23 03:48:55,792 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:48:55,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:48:55,795 INFO L85 PathProgramCache]: Analyzing trace with hash -168969249, now seen corresponding path program 1 times [2023-12-23 03:48:55,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:48:55,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154026944] [2023-12-23 03:48:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:48:55,796 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 [2023-12-23 03:48:55,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:48:55,804 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) [2023-12-23 03:48:55,805 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 [2023-12-23 03:48:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:48:56,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 03:48:56,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:48:56,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 582 proven. 24 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2023-12-23 03:48:56,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:48:56,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:48:56,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154026944] [2023-12-23 03:48:56,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154026944] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:48:56,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1370132841] [2023-12-23 03:48:56,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:48:56,404 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:48:56,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:48:56,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 03:48:56,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 03:48:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:48:57,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 03:48:57,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:48:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-12-23 03:48:57,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:48:57,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1370132841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:48:57,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 03:48:57,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2023-12-23 03:48:57,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651079087] [2023-12-23 03:48:57,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:48:57,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 03:48:57,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:48:57,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 03:48:57,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-23 03:48:57,521 INFO L87 Difference]: Start difference. First operand 130 states and 202 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-23 03:49:00,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:49:00,149 INFO L93 Difference]: Finished difference Result 285 states and 441 transitions. [2023-12-23 03:49:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 03:49:00,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2023-12-23 03:49:00,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:49:00,175 INFO L225 Difference]: With dead ends: 285 [2023-12-23 03:49:00,175 INFO L226 Difference]: Without dead ends: 212 [2023-12-23 03:49:00,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-23 03:49:00,176 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 84 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-23 03:49:00,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 329 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-23 03:49:00,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-12-23 03:49:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 201. [2023-12-23 03:49:00,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 116 states have internal predecessors, (151), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-23 03:49:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 313 transitions. [2023-12-23 03:49:00,248 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 313 transitions. Word has length 171 [2023-12-23 03:49:00,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:49:00,249 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 313 transitions. [2023-12-23 03:49:00,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-23 03:49:00,249 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 313 transitions. [2023-12-23 03:49:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-23 03:49:00,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:49:00,254 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:49:00,264 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 [2023-12-23 03:49:00,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 03:49:00,664 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 03:49:00,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:49:00,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:49:00,667 INFO L85 PathProgramCache]: Analyzing trace with hash 704680110, now seen corresponding path program 1 times [2023-12-23 03:49:00,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:49:00,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321874405] [2023-12-23 03:49:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:49:00,668 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 [2023-12-23 03:49:00,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:49:00,671 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) [2023-12-23 03:49:00,671 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 [2023-12-23 03:49:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:49:00,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 03:49:00,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:49:01,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 582 proven. 24 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2023-12-23 03:49:01,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:49:01,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:49:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321874405] [2023-12-23 03:49:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321874405] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:49:01,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1647367577] [2023-12-23 03:49:01,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:49:01,153 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:49:01,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:49:01,154 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) [2023-12-23 03:49:01,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 03:49:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:49:01,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 03:49:01,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:49:02,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 722 proven. 42 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-12-23 03:49:02,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:49:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2023-12-23 03:49:02,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1647367577] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 03:49:02,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-23 03:49:02,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2023-12-23 03:49:02,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663582592] [2023-12-23 03:49:02,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-23 03:49:02,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-23 03:49:02,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:49:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-23 03:49:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-23 03:49:02,321 INFO L87 Difference]: Start difference. First operand 201 states and 313 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 4 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) [2023-12-23 03:49:03,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:49:03,875 INFO L93 Difference]: Finished difference Result 488 states and 710 transitions. [2023-12-23 03:49:03,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-23 03:49:03,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 4 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) Word has length 172 [2023-12-23 03:49:03,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:49:03,881 INFO L225 Difference]: With dead ends: 488 [2023-12-23 03:49:03,881 INFO L226 Difference]: Without dead ends: 341 [2023-12-23 03:49:03,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 526 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=388, Invalid=1094, Unknown=0, NotChecked=0, Total=1482 [2023-12-23 03:49:03,883 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 333 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-23 03:49:03,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 316 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-23 03:49:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-23 03:49:03,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 247. [2023-12-23 03:49:03,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 153 states have (on average 1.2156862745098038) internal successors, (186), 153 states have internal predecessors, (186), 81 states have call successors, (81), 12 states have call predecessors, (81), 12 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-23 03:49:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 348 transitions. [2023-12-23 03:49:03,907 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 348 transitions. Word has length 172 [2023-12-23 03:49:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:49:03,908 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 348 transitions. [2023-12-23 03:49:03,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 4 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) [2023-12-23 03:49:03,908 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 348 transitions. [2023-12-23 03:49:03,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-23 03:49:03,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:49:03,910 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:49:03,933 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 (7)] Ended with exit code 0 [2023-12-23 03:49:04,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 03:49:04,327 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 [2023-12-23 03:49:04,328 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:49:04,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:49:04,328 INFO L85 PathProgramCache]: Analyzing trace with hash 617926741, now seen corresponding path program 1 times [2023-12-23 03:49:04,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:49:04,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519686108] [2023-12-23 03:49:04,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:49:04,330 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 [2023-12-23 03:49:04,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:49:04,331 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) [2023-12-23 03:49:04,333 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 [2023-12-23 03:49:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:49:04,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-23 03:49:04,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:49:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 762 proven. 204 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-12-23 03:49:08,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:50:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 75 proven. 150 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2023-12-23 03:50:02,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:50:02,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519686108] [2023-12-23 03:50:02,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519686108] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 03:50:02,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 03:50:02,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 32 [2023-12-23 03:50:02,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801301942] [2023-12-23 03:50:02,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 03:50:02,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-23 03:50:02,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:50:02,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-23 03:50:02,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=714, Unknown=0, NotChecked=0, Total=992 [2023-12-23 03:50:02,807 INFO L87 Difference]: Start difference. First operand 247 states and 348 transitions. Second operand has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 9 states have call successors, (54), 6 states have call predecessors, (54), 11 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-23 03:50:23,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:50:31,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:51:22,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:51:32,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:51:34,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:51:34,884 INFO L93 Difference]: Finished difference Result 560 states and 738 transitions. [2023-12-23 03:51:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-23 03:51:34,914 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 9 states have call successors, (54), 6 states have call predecessors, (54), 11 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) Word has length 173 [2023-12-23 03:51:34,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:51:34,916 INFO L225 Difference]: With dead ends: 560 [2023-12-23 03:51:34,916 INFO L226 Difference]: Without dead ends: 382 [2023-12-23 03:51:34,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1799 ImplicationChecksByTransitivity, 63.8s TimeCoverageRelationStatistics Valid=1457, Invalid=3513, Unknown=0, NotChecked=0, Total=4970 [2023-12-23 03:51:34,918 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 429 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 144 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.8s IncrementalHoareTripleChecker+Time [2023-12-23 03:51:34,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 610 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1181 Invalid, 3 Unknown, 0 Unchecked, 50.8s Time] [2023-12-23 03:51:34,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-12-23 03:51:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 292. [2023-12-23 03:51:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 188 states have (on average 1.175531914893617) internal successors, (221), 188 states have internal predecessors, (221), 81 states have call successors, (81), 22 states have call predecessors, (81), 22 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-23 03:51:34,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 383 transitions. [2023-12-23 03:51:34,942 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 383 transitions. Word has length 173 [2023-12-23 03:51:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:51:34,943 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 383 transitions. [2023-12-23 03:51:34,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 9 states have call successors, (54), 6 states have call predecessors, (54), 11 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-23 03:51:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 383 transitions. [2023-12-23 03:51:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-23 03:51:34,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:51:34,944 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:51:34,965 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 [2023-12-23 03:51:35,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-12-23 03:51:35,153 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:51:35,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:51:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash -140396139, now seen corresponding path program 1 times [2023-12-23 03:51:35,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:51:35,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749667769] [2023-12-23 03:51:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:51:35,155 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 [2023-12-23 03:51:35,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:51:35,156 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-23 03:51:35,176 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 (10)] Waiting until timeout for monitored process [2023-12-23 03:51:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:51:35,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-23 03:51:35,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:51:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 391 proven. 246 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2023-12-23 03:51:38,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:52:35,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:52:35,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749667769] [2023-12-23 03:52:35,755 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-12-23 03:52:35,764 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 (10)] Forceful destruction successful, exit code 0 [2023-12-23 03:52:35,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-12-23 03:52:35,956 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 146603 column 7: push canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1511) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:268) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:410) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:394) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:500) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:199) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:391) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-23 03:52:35,959 INFO L158 Benchmark]: Toolchain (without parser) took 225280.59ms. Allocated memory was 267.4MB in the beginning and 320.9MB in the end (delta: 53.5MB). Free memory was 215.9MB in the beginning and 198.0MB in the end (delta: 17.9MB). Peak memory consumption was 71.8MB. Max. memory is 8.0GB. [2023-12-23 03:52:35,959 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 03:52:35,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.13ms. Allocated memory is still 267.4MB. Free memory was 215.4MB in the beginning and 200.1MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-23 03:52:35,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.27ms. Allocated memory is still 267.4MB. Free memory was 200.1MB in the beginning and 197.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 03:52:35,960 INFO L158 Benchmark]: Boogie Preprocessor took 72.49ms. Allocated memory is still 267.4MB. Free memory was 197.6MB in the beginning and 193.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 03:52:35,960 INFO L158 Benchmark]: RCFGBuilder took 779.42ms. Allocated memory is still 267.4MB. Free memory was 193.9MB in the beginning and 168.2MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-23 03:52:35,960 INFO L158 Benchmark]: TraceAbstraction took 224057.50ms. Allocated memory was 267.4MB in the beginning and 320.9MB in the end (delta: 53.5MB). Free memory was 167.6MB in the beginning and 198.0MB in the end (delta: -30.3MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. [2023-12-23 03:52:35,962 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 178.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 312.13ms. Allocated memory is still 267.4MB. Free memory was 215.4MB in the beginning and 200.1MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.27ms. Allocated memory is still 267.4MB. Free memory was 200.1MB in the beginning and 197.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.49ms. Allocated memory is still 267.4MB. Free memory was 197.6MB in the beginning and 193.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 779.42ms. Allocated memory is still 267.4MB. Free memory was 193.9MB in the beginning and 168.2MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 224057.50ms. Allocated memory was 267.4MB in the beginning and 320.9MB in the end (delta: 53.5MB). Free memory was 167.6MB in the beginning and 198.0MB in the end (delta: -30.3MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 146603 column 7: push canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 146603 column 7: push canceled: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1511) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-23 03:52:36,167 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 [2023-12-23 03:52:36,200 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 Received shutdown request...