/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-cn_file-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:48:44,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:48:44,529 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 11:48:44,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:48:44,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:48:44,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:48:44,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:48:44,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:48:44,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:48:44,560 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:48:44,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:48:44,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:48:44,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:48:44,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:48:44,562 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:48:44,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:48:44,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:48:44,563 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:48:44,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:48:44,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:48:44,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:48:44,564 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:48:44,564 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:48:44,564 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:48:44,564 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:48:44,564 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:48:44,564 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:48:44,564 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:48:44,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:48:44,565 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:48:44,565 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:48:44,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:48:44,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:48:44,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:48:44,567 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:48:44,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:48:44,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:48:44,567 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:48:44,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:48:44,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:48:44,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:48:44,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:48:44,781 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:48:44,781 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:48:44,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-1.i [2023-12-16 11:48:45,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:48:46,039 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:48:46,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-1.i [2023-12-16 11:48:46,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1ae95a6/81d27529e8f840d68f1ae8620091a6ab/FLAG3b0a4a9cb [2023-12-16 11:48:46,065 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1ae95a6/81d27529e8f840d68f1ae8620091a6ab [2023-12-16 11:48:46,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:48:46,068 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:48:46,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:48:46,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:48:46,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:48:46,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a381acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46, skipping insertion in model container [2023-12-16 11:48:46,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:48:46,218 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-cn_file-1.i[918,931] [2023-12-16 11:48:46,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:48:46,313 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:48:46,325 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-cn_file-1.i[918,931] [2023-12-16 11:48:46,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:48:46,364 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:48:46,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46 WrapperNode [2023-12-16 11:48:46,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:48:46,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:48:46,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:48:46,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:48:46,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,403 INFO L138 Inliner]: procedures = 27, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 262 [2023-12-16 11:48:46,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:48:46,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:48:46,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:48:46,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:48:46,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,417 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,426 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 11:48:46,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:48:46,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:48:46,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:48:46,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:48:46,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (1/1) ... [2023-12-16 11:48:46,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:48:46,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:48:46,520 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 11:48:46,555 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 11:48:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:48:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:48:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:48:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:48:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:48:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:48:46,683 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:48:46,684 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:48:47,001 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:48:47,060 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:48:47,060 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:48:47,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:48:47 BoogieIcfgContainer [2023-12-16 11:48:47,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:48:47,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:48:47,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:48:47,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:48:47,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:48:46" (1/3) ... [2023-12-16 11:48:47,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee74c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:48:47, skipping insertion in model container [2023-12-16 11:48:47,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:48:46" (2/3) ... [2023-12-16 11:48:47,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee74c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:48:47, skipping insertion in model container [2023-12-16 11:48:47,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:48:47" (3/3) ... [2023-12-16 11:48:47,066 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-1.i [2023-12-16 11:48:47,078 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:48:47,078 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:48:47,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:48:47,148 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;@6439e1f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:48:47,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:48:47,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 63 states have internal predecessors, (88), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 11:48:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-16 11:48:47,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:48:47,168 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:48:47,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:48:47,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:48:47,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2065221770, now seen corresponding path program 1 times [2023-12-16 11:48:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:48:47,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734542919] [2023-12-16 11:48:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:48:47,191 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 11:48:47,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:48:47,204 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 11:48:47,206 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 11:48:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:48:47,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:48:47,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:48:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1022 proven. 0 refuted. 0 times theorem prover too weak. 4282 trivial. 0 not checked. [2023-12-16 11:48:47,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:48:47,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:48:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734542919] [2023-12-16 11:48:47,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734542919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:48:47,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:48:47,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:48:47,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614531608] [2023-12-16 11:48:47,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:48:47,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:48:47,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:48:47,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:48:47,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:48:47,643 INFO L87 Difference]: Start difference. First operand has 117 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 63 states have internal predecessors, (88), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-16 11:48:47,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:48:47,685 INFO L93 Difference]: Finished difference Result 231 states and 434 transitions. [2023-12-16 11:48:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:48:47,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 309 [2023-12-16 11:48:47,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:48:47,694 INFO L225 Difference]: With dead ends: 231 [2023-12-16 11:48:47,694 INFO L226 Difference]: Without dead ends: 115 [2023-12-16 11:48:47,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:48:47,702 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 11:48:47,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 11:48:47,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-16 11:48:47,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-16 11:48:47,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 61 states have internal predecessors, (82), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 11:48:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 186 transitions. [2023-12-16 11:48:47,764 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 186 transitions. Word has length 309 [2023-12-16 11:48:47,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:48:47,765 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 186 transitions. [2023-12-16 11:48:47,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-16 11:48:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 186 transitions. [2023-12-16 11:48:47,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-16 11:48:47,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:48:47,773 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:48:47,782 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 11:48:47,973 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 11:48:47,974 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:48:47,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:48:47,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1149535302, now seen corresponding path program 1 times [2023-12-16 11:48:47,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:48:47,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837953368] [2023-12-16 11:48:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:48:47,976 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 11:48:47,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:48:47,977 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 11:48:47,983 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 11:48:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:48:48,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 11:48:48,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:48:49,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 2093 proven. 222 refuted. 0 times theorem prover too weak. 2989 trivial. 0 not checked. [2023-12-16 11:48:49,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:48:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-16 11:48:49,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:48:49,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837953368] [2023-12-16 11:48:49,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837953368] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 11:48:49,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:48:49,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-16 11:48:49,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918918373] [2023-12-16 11:48:49,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:48:49,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:48:49,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:48:49,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:48:49,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-16 11:48:49,142 INFO L87 Difference]: Start difference. First operand 115 states and 186 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 11:48:49,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:48:49,187 INFO L93 Difference]: Finished difference Result 229 states and 371 transitions. [2023-12-16 11:48:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:48:49,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 309 [2023-12-16 11:48:49,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:48:49,191 INFO L225 Difference]: With dead ends: 229 [2023-12-16 11:48:49,191 INFO L226 Difference]: Without dead ends: 115 [2023-12-16 11:48:49,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-16 11:48:49,192 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 37 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 11:48:49,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 314 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 11:48:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-16 11:48:49,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-16 11:48:49,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 61 states have internal predecessors, (81), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 11:48:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 185 transitions. [2023-12-16 11:48:49,202 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 185 transitions. Word has length 309 [2023-12-16 11:48:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:48:49,204 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 185 transitions. [2023-12-16 11:48:49,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 11:48:49,204 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 185 transitions. [2023-12-16 11:48:49,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-16 11:48:49,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:48:49,207 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:48:49,215 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 11:48:49,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:48:49,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:48:49,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:48:49,416 INFO L85 PathProgramCache]: Analyzing trace with hash 2124363640, now seen corresponding path program 1 times [2023-12-16 11:48:49,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:48:49,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184427082] [2023-12-16 11:48:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:48:49,417 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 11:48:49,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:48:49,418 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:48:49,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 11:48:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:48:49,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:48:49,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:48:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-16 11:48:50,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:48:50,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:48:50,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184427082] [2023-12-16 11:48:50,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184427082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:48:50,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:48:50,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:48:50,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411328437] [2023-12-16 11:48:50,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:48:50,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:48:50,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:48:50,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:48:50,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:48:50,098 INFO L87 Difference]: Start difference. First operand 115 states and 185 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 11:48:50,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:48:50,144 INFO L93 Difference]: Finished difference Result 343 states and 553 transitions. [2023-12-16 11:48:50,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:48:50,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 309 [2023-12-16 11:48:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:48:50,147 INFO L225 Difference]: With dead ends: 343 [2023-12-16 11:48:50,147 INFO L226 Difference]: Without dead ends: 229 [2023-12-16 11:48:50,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:48:50,149 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 37 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 11:48:50,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 11:48:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-12-16 11:48:50,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2023-12-16 11:48:50,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 120 states have (on average 1.325) internal successors, (159), 120 states have internal predecessors, (159), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-16 11:48:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 367 transitions. [2023-12-16 11:48:50,174 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 367 transitions. Word has length 309 [2023-12-16 11:48:50,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:48:50,174 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 367 transitions. [2023-12-16 11:48:50,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 11:48:50,175 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 367 transitions. [2023-12-16 11:48:50,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-12-16 11:48:50,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:48:50,177 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:48:50,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 11:48:50,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:48:50,387 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:48:50,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:48:50,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1945709278, now seen corresponding path program 1 times [2023-12-16 11:48:50,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:48:50,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492694830] [2023-12-16 11:48:50,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:48:50,388 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 11:48:50,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:48:50,397 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 11:48:50,398 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 11:48:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:48:50,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:48:50,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:48:50,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 2053 proven. 114 refuted. 0 times theorem prover too weak. 3137 trivial. 0 not checked. [2023-12-16 11:48:50,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:48:51,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:48:51,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492694830] [2023-12-16 11:48:51,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492694830] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:48:51,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [825087993] [2023-12-16 11:48:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:48:51,007 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:48:51,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:48:51,041 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) [2023-12-16 11:48:51,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 11:48:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:48:51,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:48:51,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:48:51,932 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-16 11:48:51,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:48:51,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [825087993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:48:51,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:48:51,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-12-16 11:48:51,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804153171] [2023-12-16 11:48:51,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:48:51,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 11:48:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:48:51,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 11:48:51,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-16 11:48:51,935 INFO L87 Difference]: Start difference. First operand 227 states and 367 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 11:48:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:48:52,359 INFO L93 Difference]: Finished difference Result 475 states and 754 transitions. [2023-12-16 11:48:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 11:48:52,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 310 [2023-12-16 11:48:52,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:48:52,362 INFO L225 Difference]: With dead ends: 475 [2023-12-16 11:48:52,362 INFO L226 Difference]: Without dead ends: 361 [2023-12-16 11:48:52,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 641 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-16 11:48:52,363 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 189 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:48:52,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 691 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 11:48:52,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-12-16 11:48:52,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 270. [2023-12-16 11:48:52,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 148 states have (on average 1.2905405405405406) internal successors, (191), 149 states have internal predecessors, (191), 117 states have call successors, (117), 4 states have call predecessors, (117), 4 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2023-12-16 11:48:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 425 transitions. [2023-12-16 11:48:52,410 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 425 transitions. Word has length 310 [2023-12-16 11:48:52,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:48:52,410 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 425 transitions. [2023-12-16 11:48:52,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 11:48:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 425 transitions. [2023-12-16 11:48:52,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-12-16 11:48:52,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:48:52,413 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:48:52,433 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 11:48:52,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 11:48:52,829 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 [2023-12-16 11:48:52,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:48:52,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:48:52,830 INFO L85 PathProgramCache]: Analyzing trace with hash 693137053, now seen corresponding path program 1 times [2023-12-16 11:48:52,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:48:52,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083246195] [2023-12-16 11:48:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:48:52,831 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 11:48:52,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:48:52,853 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:48:52,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 11:48:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:48:53,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 11:48:53,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:49:44,856 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 11:49:44,856 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:49:45,883 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 [2023-12-16 11:49:45,883 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