/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-45.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 02:29:11,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 02:29:11,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 02:29:11,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 02:29:11,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 02:29:11,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 02:29:11,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 02:29:11,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 02:29:11,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 02:29:11,127 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 02:29:11,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 02:29:11,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 02:29:11,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 02:29:11,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 02:29:11,128 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 02:29:11,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 02:29:11,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 02:29:11,129 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 02:29:11,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 02:29:11,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 02:29:11,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 02:29:11,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 02:29:11,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 02:29:11,131 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 02:29:11,131 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 02:29:11,131 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 02:29:11,131 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 02:29:11,131 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 02:29:11,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 02:29:11,131 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 02:29:11,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 02:29:11,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 02:29:11,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 02:29:11,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 02:29:11,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:29:11,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 02:29:11,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 02:29:11,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 02:29:11,133 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 02:29:11,133 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 02:29:11,133 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 02:29:11,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 02:29:11,134 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 02:29:11,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 02:29:11,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 02:29:11,134 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 02:29:11,134 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 02:29:11,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 02:29:11,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 02:29:11,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 02:29:11,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 02:29:11,312 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 02:29:11,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-45.i [2023-12-23 02:29:12,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 02:29:12,420 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 02:29:12,420 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-45.i [2023-12-23 02:29:12,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e47e549/f442d2ed0c584c9f97ef04f3204897ff/FLAG25ee4e851 [2023-12-23 02:29:12,439 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e47e549/f442d2ed0c584c9f97ef04f3204897ff [2023-12-23 02:29:12,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 02:29:12,442 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 02:29:12,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 02:29:12,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 02:29:12,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 02:29:12,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f5b9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12, skipping insertion in model container [2023-12-23 02:29:12,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,488 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 02:29:12,598 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-45.i[916,929] [2023-12-23 02:29:12,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:29:12,691 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 02:29:12,699 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-45.i[916,929] [2023-12-23 02:29:12,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:29:12,760 INFO L206 MainTranslator]: Completed translation [2023-12-23 02:29:12,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12 WrapperNode [2023-12-23 02:29:12,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 02:29:12,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 02:29:12,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 02:29:12,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 02:29:12,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,824 INFO L138 Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 431 [2023-12-23 02:29:12,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 02:29:12,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 02:29:12,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 02:29:12,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 02:29:12,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,837 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,851 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 02:29:12,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 02:29:12,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 02:29:12,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 02:29:12,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 02:29:12,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (1/1) ... [2023-12-23 02:29:12,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:29:12,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 02:29:12,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 02:29:12,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 02:29:12,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 02:29:12,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 02:29:12,936 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 02:29:12,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 02:29:12,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 02:29:12,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 02:29:13,055 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 02:29:13,060 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 02:29:22,855 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 02:29:22,896 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 02:29:22,896 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 02:29:22,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:29:22 BoogieIcfgContainer [2023-12-23 02:29:22,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 02:29:22,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 02:29:22,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 02:29:22,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 02:29:22,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:29:12" (1/3) ... [2023-12-23 02:29:22,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed65b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:29:22, skipping insertion in model container [2023-12-23 02:29:22,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:29:12" (2/3) ... [2023-12-23 02:29:22,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed65b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:29:22, skipping insertion in model container [2023-12-23 02:29:22,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:29:22" (3/3) ... [2023-12-23 02:29:22,903 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-45.i [2023-12-23 02:29:22,915 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 02:29:22,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 02:29:22,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 02:29:22,958 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;@66b81f45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 02:29:22,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 02:29:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 120 states have (on average 1.55) internal successors, (186), 121 states have internal predecessors, (186), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-23 02:29:22,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-23 02:29:22,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:29:22,989 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:29:22,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:29:22,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:29:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1726655039, now seen corresponding path program 1 times [2023-12-23 02:29:23,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:29:23,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604783223] [2023-12-23 02:29:23,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:29:23,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:23,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:29:23,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:29:23,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 02:29:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:29:23,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 02:29:23,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:29:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 4292 proven. 0 refuted. 0 times theorem prover too weak. 4552 trivial. 0 not checked. [2023-12-23 02:29:23,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:29:23,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:29:23,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604783223] [2023-12-23 02:29:23,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604783223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:29:23,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:29:23,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 02:29:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889052905] [2023-12-23 02:29:23,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:29:23,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 02:29:23,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:29:23,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 02:29:23,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 02:29:23,779 INFO L87 Difference]: Start difference. First operand has 190 states, 120 states have (on average 1.55) internal successors, (186), 121 states have internal predecessors, (186), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2023-12-23 02:29:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:29:23,887 INFO L93 Difference]: Finished difference Result 377 states and 705 transitions. [2023-12-23 02:29:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 02:29:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 423 [2023-12-23 02:29:23,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:29:23,901 INFO L225 Difference]: With dead ends: 377 [2023-12-23 02:29:23,901 INFO L226 Difference]: Without dead ends: 188 [2023-12-23 02:29:23,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 02:29:23,916 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 02:29:23,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 02:29:23,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-23 02:29:23,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-12-23 02:29:23,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 119 states have (on average 1.495798319327731) internal successors, (178), 119 states have internal predecessors, (178), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-23 02:29:23,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 312 transitions. [2023-12-23 02:29:23,978 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 312 transitions. Word has length 423 [2023-12-23 02:29:23,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:29:23,978 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 312 transitions. [2023-12-23 02:29:23,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2023-12-23 02:29:23,978 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 312 transitions. [2023-12-23 02:29:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-23 02:29:23,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:29:23,988 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:29:24,007 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 [2023-12-23 02:29:24,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:24,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:29:24,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:29:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1878632395, now seen corresponding path program 1 times [2023-12-23 02:29:24,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:29:24,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400989568] [2023-12-23 02:29:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:29:24,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:24,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:29:24,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:29:24,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 02:29:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:29:24,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:29:24,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:29:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2023-12-23 02:29:24,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:29:24,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:29:24,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400989568] [2023-12-23 02:29:24,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400989568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:29:24,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:29:24,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 02:29:24,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817862585] [2023-12-23 02:29:24,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:29:24,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:29:24,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:29:24,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:29:24,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:29:24,895 INFO L87 Difference]: Start difference. First operand 188 states and 312 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) [2023-12-23 02:29:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:29:25,032 INFO L93 Difference]: Finished difference Result 475 states and 791 transitions. [2023-12-23 02:29:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:29:25,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) Word has length 423 [2023-12-23 02:29:25,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:29:25,037 INFO L225 Difference]: With dead ends: 475 [2023-12-23 02:29:25,037 INFO L226 Difference]: Without dead ends: 288 [2023-12-23 02:29:25,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:29:25,046 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 150 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 02:29:25,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 711 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 02:29:25,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-12-23 02:29:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 285. [2023-12-23 02:29:25,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 199 states have (on average 1.5527638190954773) internal successors, (309), 200 states have internal predecessors, (309), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-23 02:29:25,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 475 transitions. [2023-12-23 02:29:25,085 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 475 transitions. Word has length 423 [2023-12-23 02:29:25,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:29:25,086 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 475 transitions. [2023-12-23 02:29:25,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) [2023-12-23 02:29:25,087 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 475 transitions. [2023-12-23 02:29:25,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-23 02:29:25,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:29:25,092 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:29:25,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 02:29:25,318 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 [2023-12-23 02:29:25,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:29:25,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:29:25,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2063246519, now seen corresponding path program 1 times [2023-12-23 02:29:25,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:29:25,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264613522] [2023-12-23 02:29:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:29:25,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:25,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:29:25,322 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) [2023-12-23 02:29:25,357 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 [2023-12-23 02:29:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:29:25,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 02:29:25,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:29:26,211 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 2232 proven. 27 refuted. 0 times theorem prover too weak. 6585 trivial. 0 not checked. [2023-12-23 02:29:26,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:29:26,491 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 171 proven. 27 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2023-12-23 02:29:26,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:29:26,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264613522] [2023-12-23 02:29:26,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264613522] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 02:29:26,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:29:26,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 02:29:26,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351471170] [2023-12-23 02:29:26,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:29:26,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 02:29:26,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:29:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 02:29:26,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 02:29:26,494 INFO L87 Difference]: Start difference. First operand 285 states and 475 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2023-12-23 02:29:27,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:29:27,341 INFO L93 Difference]: Finished difference Result 571 states and 944 transitions. [2023-12-23 02:29:27,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 02:29:27,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 423 [2023-12-23 02:29:27,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:29:27,350 INFO L225 Difference]: With dead ends: 571 [2023-12-23 02:29:27,351 INFO L226 Difference]: Without dead ends: 287 [2023-12-23 02:29:27,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 838 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 02:29:27,352 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 330 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-23 02:29:27,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 543 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-23 02:29:27,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-12-23 02:29:27,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2023-12-23 02:29:27,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 194 states have (on average 1.5154639175257731) internal successors, (294), 195 states have internal predecessors, (294), 83 states have call successors, (83), 3 states have call predecessors, (83), 3 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-23 02:29:27,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 460 transitions. [2023-12-23 02:29:27,368 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 460 transitions. Word has length 423 [2023-12-23 02:29:27,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:29:27,368 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 460 transitions. [2023-12-23 02:29:27,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2023-12-23 02:29:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 460 transitions. [2023-12-23 02:29:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-23 02:29:27,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:29:27,371 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:29:27,388 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 [2023-12-23 02:29:27,588 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 [2023-12-23 02:29:27,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:29:27,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:29:27,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2012866059, now seen corresponding path program 1 times [2023-12-23 02:29:27,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:29:27,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280065855] [2023-12-23 02:29:27,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:29:27,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:27,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:29:27,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:29:27,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 02:29:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:29:28,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 02:29:28,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:29:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 3618 proven. 54 refuted. 0 times theorem prover too weak. 5172 trivial. 0 not checked. [2023-12-23 02:29:28,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:29:28,976 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 144 proven. 54 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2023-12-23 02:29:28,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:29:28,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280065855] [2023-12-23 02:29:28,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280065855] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 02:29:28,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:29:28,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 02:29:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627710419] [2023-12-23 02:29:28,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:29:28,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 02:29:28,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:29:28,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 02:29:28,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 02:29:28,979 INFO L87 Difference]: Start difference. First operand 281 states and 460 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-23 02:29:31,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:29:31,065 INFO L93 Difference]: Finished difference Result 861 states and 1394 transitions. [2023-12-23 02:29:31,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 02:29:31,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 423 [2023-12-23 02:29:31,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:29:31,070 INFO L225 Difference]: With dead ends: 861 [2023-12-23 02:29:31,070 INFO L226 Difference]: Without dead ends: 581 [2023-12-23 02:29:31,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 838 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-23 02:29:31,071 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 677 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-23 02:29:31,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1010 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-23 02:29:31,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-12-23 02:29:31,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 563. [2023-12-23 02:29:31,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 388 states have (on average 1.5) internal successors, (582), 390 states have internal predecessors, (582), 166 states have call successors, (166), 8 states have call predecessors, (166), 8 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2023-12-23 02:29:31,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 914 transitions. [2023-12-23 02:29:31,108 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 914 transitions. Word has length 423 [2023-12-23 02:29:31,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:29:31,109 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 914 transitions. [2023-12-23 02:29:31,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-23 02:29:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 914 transitions. [2023-12-23 02:29:31,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-23 02:29:31,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:29:31,111 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:29:31,128 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 (5)] Ended with exit code 0 [2023-12-23 02:29:31,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:31,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:29:31,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:29:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1261032883, now seen corresponding path program 1 times [2023-12-23 02:29:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:29:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2621156] [2023-12-23 02:29:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:29:31,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:31,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:29:31,315 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:29:31,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 02:29:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:29:31,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 02:29:31,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:29:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 3006 proven. 156 refuted. 0 times theorem prover too weak. 5682 trivial. 0 not checked. [2023-12-23 02:29:32,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:29:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 42 proven. 156 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2023-12-23 02:29:33,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:29:33,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2621156] [2023-12-23 02:29:33,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2621156] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 02:29:33,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:29:33,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-23 02:29:33,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771783867] [2023-12-23 02:29:33,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:29:33,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 02:29:33,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:29:33,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 02:29:33,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 02:29:33,182 INFO L87 Difference]: Start difference. First operand 563 states and 914 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2023-12-23 02:29:34,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:29:34,080 INFO L93 Difference]: Finished difference Result 1153 states and 1847 transitions. [2023-12-23 02:29:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 02:29:34,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) Word has length 423 [2023-12-23 02:29:34,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:29:34,089 INFO L225 Difference]: With dead ends: 1153 [2023-12-23 02:29:34,089 INFO L226 Difference]: Without dead ends: 591 [2023-12-23 02:29:34,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 837 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-23 02:29:34,093 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 511 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-23 02:29:34,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 531 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-23 02:29:34,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-12-23 02:29:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 575. [2023-12-23 02:29:34,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 396 states have (on average 1.4494949494949494) internal successors, (574), 398 states have internal predecessors, (574), 166 states have call successors, (166), 12 states have call predecessors, (166), 12 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2023-12-23 02:29:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 906 transitions. [2023-12-23 02:29:34,155 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 906 transitions. Word has length 423 [2023-12-23 02:29:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:29:34,162 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 906 transitions. [2023-12-23 02:29:34,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2023-12-23 02:29:34,163 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 906 transitions. [2023-12-23 02:29:34,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2023-12-23 02:29:34,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:29:34,166 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:29:34,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-23 02:29:34,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:34,395 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:29:34,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:29:34,396 INFO L85 PathProgramCache]: Analyzing trace with hash 419474144, now seen corresponding path program 1 times [2023-12-23 02:29:34,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:29:34,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137283000] [2023-12-23 02:29:34,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:29:34,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:34,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:29:34,398 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:29:34,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 02:29:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:29:35,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:29:35,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:29:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2023-12-23 02:29:35,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:29:35,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:29:35,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137283000] [2023-12-23 02:29:35,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137283000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:29:35,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:29:35,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 02:29:35,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015500567] [2023-12-23 02:29:35,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:29:35,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:29:35,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:29:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:29:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:29:35,097 INFO L87 Difference]: Start difference. First operand 575 states and 906 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) [2023-12-23 02:29:35,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:29:35,189 INFO L93 Difference]: Finished difference Result 1149 states and 1811 transitions. [2023-12-23 02:29:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:29:35,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) Word has length 424 [2023-12-23 02:29:35,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:29:35,198 INFO L225 Difference]: With dead ends: 1149 [2023-12-23 02:29:35,198 INFO L226 Difference]: Without dead ends: 575 [2023-12-23 02:29:35,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:29:35,200 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 2 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 02:29:35,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 582 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 02:29:35,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-23 02:29:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2023-12-23 02:29:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 396 states have (on average 1.4393939393939394) internal successors, (570), 398 states have internal predecessors, (570), 166 states have call successors, (166), 12 states have call predecessors, (166), 12 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2023-12-23 02:29:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 902 transitions. [2023-12-23 02:29:35,236 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 902 transitions. Word has length 424 [2023-12-23 02:29:35,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:29:35,237 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 902 transitions. [2023-12-23 02:29:35,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) [2023-12-23 02:29:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 902 transitions. [2023-12-23 02:29:35,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-12-23 02:29:35,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:29:35,239 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:29:35,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-23 02:29:35,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:35,453 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:29:35,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:29:35,453 INFO L85 PathProgramCache]: Analyzing trace with hash 106408764, now seen corresponding path program 1 times [2023-12-23 02:29:35,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:29:35,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344563985] [2023-12-23 02:29:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:29:35,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:29:35,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:29:35,455 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:29:35,455 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 (8)] Waiting until timeout for monitored process [2023-12-23 02:29:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:29:36,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-23 02:29:36,218 INFO L285 TraceCheckSpWp]: Computing forward predicates...