/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_fillercodestructure_filler-pe-ci_file-31.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:41:31,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:41:31,147 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 11:41:31,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:41:31,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:41:31,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:41:31,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:41:31,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:41:31,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:41:31,178 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:41:31,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:41:31,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:41:31,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:41:31,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:41:31,180 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:41:31,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:41:31,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:41:31,181 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:41:31,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:41:31,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:41:31,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:41:31,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:41:31,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:41:31,182 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:41:31,182 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:41:31,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:41:31,182 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:41:31,182 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:41:31,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:41:31,183 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:41:31,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:41:31,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:41:31,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:41:31,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:41:31,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:41:31,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:41:31,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:41:31,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:41:31,184 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:41:31,185 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:41:31,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:41:31,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:41:31,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:41:31,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:41:31,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:41:31,186 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:41:31,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:41:31,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:41:31,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:41:31,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:41:31,400 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:41:31,401 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:41:31,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i [2023-12-16 11:41:32,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:41:32,527 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:41:32,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i [2023-12-16 11:41:32,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6411bc9b1/aa7108b91c294f6b8afeb546913f6f43/FLAG11deec259 [2023-12-16 11:41:32,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6411bc9b1/aa7108b91c294f6b8afeb546913f6f43 [2023-12-16 11:41:32,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:41:32,551 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:41:32,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:41:32,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:41:32,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:41:32,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fca124a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32, skipping insertion in model container [2023-12-16 11:41:32,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,594 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:41:32,713 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_fillercodestructure_filler-pe-ci_file-31.i[919,932] [2023-12-16 11:41:32,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:41:32,806 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:41:32,818 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_fillercodestructure_filler-pe-ci_file-31.i[919,932] [2023-12-16 11:41:32,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:41:32,887 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:41:32,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32 WrapperNode [2023-12-16 11:41:32,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:41:32,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:41:32,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:41:32,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:41:32,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,940 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 196 [2023-12-16 11:41:32,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:41:32,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:41:32,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:41:32,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:41:32,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,968 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 11:41:32,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:32,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:41:32,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:41:32,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:41:32,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:41:32,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (1/1) ... [2023-12-16 11:41:33,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:41:33,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:41:33,027 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 11:41:33,046 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 11:41:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:41:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:41:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:41:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:41:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:41:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:41:33,141 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:41:33,142 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:41:33,579 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:41:33,604 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:41:33,604 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:41:33,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:41:33 BoogieIcfgContainer [2023-12-16 11:41:33,604 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:41:33,606 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:41:33,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:41:33,608 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:41:33,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:41:32" (1/3) ... [2023-12-16 11:41:33,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5734c8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:41:33, skipping insertion in model container [2023-12-16 11:41:33,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:41:32" (2/3) ... [2023-12-16 11:41:33,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5734c8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:41:33, skipping insertion in model container [2023-12-16 11:41:33,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:41:33" (3/3) ... [2023-12-16 11:41:33,610 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i [2023-12-16 11:41:33,621 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:41:33,621 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:41:33,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:41:33,654 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;@355971c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:41:33,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:41:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 52 states have internal predecessors, (76), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 11:41:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 11:41:33,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:41:33,667 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:33,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:41:33,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:41:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1773548051, now seen corresponding path program 1 times [2023-12-16 11:41:33,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:41:33,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948856933] [2023-12-16 11:41:33,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:41:33,681 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 11:41:33,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:41:33,683 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 11:41:33,688 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 11:41:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:41:33,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:41:33,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:41:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 708 proven. 24 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2023-12-16 11:41:34,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:41:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 60 proven. 24 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-16 11:41:34,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:41:34,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948856933] [2023-12-16 11:41:34,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948856933] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:41:34,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:41:34,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 11:41:34,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762717879] [2023-12-16 11:41:34,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:41:34,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 11:41:34,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:41:34,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 11:41:34,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:41:34,275 INFO L87 Difference]: Start difference. First operand has 83 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 52 states have internal predecessors, (76), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-16 11:41:34,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:41:34,988 INFO L93 Difference]: Finished difference Result 288 states and 546 transitions. [2023-12-16 11:41:34,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 11:41:34,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 181 [2023-12-16 11:41:34,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:41:34,998 INFO L225 Difference]: With dead ends: 288 [2023-12-16 11:41:34,998 INFO L226 Difference]: Without dead ends: 206 [2023-12-16 11:41:35,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-16 11:41:35,003 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 321 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 11:41:35,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 384 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 11:41:35,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-16 11:41:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 191. [2023-12-16 11:41:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 108 states have (on average 1.3240740740740742) internal successors, (143), 110 states have internal predecessors, (143), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 11:41:35,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 299 transitions. [2023-12-16 11:41:35,053 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 299 transitions. Word has length 181 [2023-12-16 11:41:35,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:41:35,054 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 299 transitions. [2023-12-16 11:41:35,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-16 11:41:35,054 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 299 transitions. [2023-12-16 11:41:35,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 11:41:35,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:41:35,069 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:35,077 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 (2)] Forceful destruction successful, exit code 0 [2023-12-16 11:41:35,275 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 11:41:35,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:41:35,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:41:35,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1510301995, now seen corresponding path program 1 times [2023-12-16 11:41:35,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:41:35,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140794604] [2023-12-16 11:41:35,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:41:35,278 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 11:41:35,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:41:35,279 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 11:41:35,303 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 11:41:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:41:35,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 11:41:35,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:41:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 870 proven. 261 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2023-12-16 11:41:36,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:41:36,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:41:36,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140794604] [2023-12-16 11:41:36,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140794604] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:41:36,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [558841763] [2023-12-16 11:41:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:41:36,828 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:41:36,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:41:36,865 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) [2023-12-16 11:41:36,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 11:41:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:41:37,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 11:41:37,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:41:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 942 proven. 114 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2023-12-16 11:41:37,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:41:38,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [558841763] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:41:38,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:41:38,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8] total 22 [2023-12-16 11:41:38,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838407167] [2023-12-16 11:41:38,014 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:41:38,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-16 11:41:38,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:41:38,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-16 11:41:38,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2023-12-16 11:41:38,025 INFO L87 Difference]: Start difference. First operand 191 states and 299 transitions. Second operand has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 20 states have internal predecessors, (96), 8 states have call successors, (53), 8 states have call predecessors, (53), 11 states have return successors, (54), 8 states have call predecessors, (54), 8 states have call successors, (54) [2023-12-16 11:41:39,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:41:39,275 INFO L93 Difference]: Finished difference Result 510 states and 726 transitions. [2023-12-16 11:41:39,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 11:41:39,276 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 20 states have internal predecessors, (96), 8 states have call successors, (53), 8 states have call predecessors, (53), 11 states have return successors, (54), 8 states have call predecessors, (54), 8 states have call successors, (54) Word has length 181 [2023-12-16 11:41:39,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:41:39,280 INFO L225 Difference]: With dead ends: 510 [2023-12-16 11:41:39,280 INFO L226 Difference]: Without dead ends: 350 [2023-12-16 11:41:39,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=537, Invalid=1625, Unknown=0, NotChecked=0, Total=2162 [2023-12-16 11:41:39,283 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 398 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 11:41:39,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 460 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 11:41:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-16 11:41:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 330. [2023-12-16 11:41:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 219 states have (on average 1.2922374429223744) internal successors, (283), 223 states have internal predecessors, (283), 86 states have call successors, (86), 24 states have call predecessors, (86), 24 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 11:41:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 455 transitions. [2023-12-16 11:41:39,331 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 455 transitions. Word has length 181 [2023-12-16 11:41:39,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:41:39,333 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 455 transitions. [2023-12-16 11:41:39,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 20 states have internal predecessors, (96), 8 states have call successors, (53), 8 states have call predecessors, (53), 11 states have return successors, (54), 8 states have call predecessors, (54), 8 states have call successors, (54) [2023-12-16 11:41:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 455 transitions. [2023-12-16 11:41:39,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 11:41:39,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:41:39,342 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:39,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 11:41:39,552 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 11:41:39,743 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 [2023-12-16 11:41:39,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:41:39,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:41:39,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1567560297, now seen corresponding path program 1 times [2023-12-16 11:41:39,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:41:39,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107216439] [2023-12-16 11:41:39,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:41:39,745 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 11:41:39,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:41:39,747 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 11:41:39,748 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 11:41:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:41:39,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 11:41:39,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:42:29,495 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 11:42:29,495 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:42:30,509 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 11:42:30,513 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 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown