/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/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 01:52:23,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 01:52:23,463 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 01:52:23,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 01:52:23,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 01:52:23,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 01:52:23,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 01:52:23,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 01:52:23,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 01:52:23,502 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 01:52:23,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 01:52:23,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 01:52:23,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 01:52:23,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 01:52:23,503 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 01:52:23,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 01:52:23,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 01:52:23,504 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 01:52:23,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 01:52:23,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 01:52:23,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 01:52:23,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 01:52:23,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 01:52:23,508 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 01:52:23,510 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 01:52:23,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 01:52:23,511 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 01:52:23,511 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 01:52:23,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 01:52:23,512 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 01:52:23,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 01:52:23,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 01:52:23,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 01:52:23,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 01:52:23,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:52:23,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 01:52:23,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 01:52:23,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 01:52:23,514 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 01:52:23,514 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 01:52:23,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 01:52:23,514 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 01:52:23,514 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 01:52:23,514 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 01:52:23,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 01:52:23,515 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 01:52:23,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 01:52:23,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 01:52:23,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 01:52:23,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 01:52:23,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 01:52:23,733 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 01:52:23,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 01:52:25,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 01:52:25,413 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 01:52:25,414 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 01:52:25,439 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876bbfaa3/4eeb55a138434e77bbb9f177ba55664d/FLAGb25430be2 [2023-12-22 01:52:25,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876bbfaa3/4eeb55a138434e77bbb9f177ba55664d [2023-12-22 01:52:25,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 01:52:25,456 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 01:52:25,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 01:52:25,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 01:52:25,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 01:52:25,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:52:25" (1/1) ... [2023-12-22 01:52:25,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1323e755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:25, skipping insertion in model container [2023-12-22 01:52:25,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:52:25" (1/1) ... [2023-12-22 01:52:25,552 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 01:52:25,900 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label05.c[20491,20504] [2023-12-22 01:52:25,946 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label05.c[27427,27440] [2023-12-22 01:52:26,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:52:26,490 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 01:52:26,539 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label05.c[20491,20504] [2023-12-22 01:52:26,551 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label05.c[27427,27440] [2023-12-22 01:52:26,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:52:26,893 INFO L206 MainTranslator]: Completed translation [2023-12-22 01:52:26,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26 WrapperNode [2023-12-22 01:52:26,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 01:52:26,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 01:52:26,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 01:52:26,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 01:52:26,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:26,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,047 INFO L138 Inliner]: procedures = 40, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5183 [2023-12-22 01:52:27,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 01:52:27,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 01:52:27,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 01:52:27,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 01:52:27,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,169 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]. [2023-12-22 01:52:27,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 01:52:27,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 01:52:27,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 01:52:27,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 01:52:27,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2023-12-22 01:52:27,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:52:27,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 01:52:27,366 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) [2023-12-22 01:52:27,369 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 [2023-12-22 01:52:27,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 01:52:27,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 01:52:27,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 01:52:27,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 01:52:27,562 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 01:52:27,563 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 01:52:53,686 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 01:52:53,740 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 01:52:53,741 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 01:52:53,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:52:53 BoogieIcfgContainer [2023-12-22 01:52:53,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 01:52:53,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 01:52:53,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 01:52:53,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 01:52:53,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:52:25" (1/3) ... [2023-12-22 01:52:53,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdaf103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:52:53, skipping insertion in model container [2023-12-22 01:52:53,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (2/3) ... [2023-12-22 01:52:53,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdaf103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:52:53, skipping insertion in model container [2023-12-22 01:52:53,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:52:53" (3/3) ... [2023-12-22 01:52:53,748 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 01:52:53,761 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 01:52:53,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 01:52:53,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 01:52:53,826 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;@bf581f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 01:52:53,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 01:52:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 867 states, 864 states have (on average 1.9710648148148149) internal successors, (1703), 866 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:52:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-22 01:52:53,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:52:53,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:52:53,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:52:53,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:52:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1824033041, now seen corresponding path program 1 times [2023-12-22 01:52:53,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:52:53,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358514829] [2023-12-22 01:52:53,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:52:53,861 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 [2023-12-22 01:52:53,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:52:53,892 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) [2023-12-22 01:52:53,904 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 [2023-12-22 01:52:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:52:54,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 01:52:54,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:52:54,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:52:54,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:52:54,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:52:54,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358514829] [2023-12-22 01:52:54,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358514829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:52:54,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:52:54,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:52:54,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445765859] [2023-12-22 01:52:54,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:52:54,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 01:52:54,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:52:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 01:52:54,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:52:54,092 INFO L87 Difference]: Start difference. First operand has 867 states, 864 states have (on average 1.9710648148148149) internal successors, (1703), 866 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:52:54,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:52:54,177 INFO L93 Difference]: Finished difference Result 1679 states and 3299 transitions. [2023-12-22 01:52:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 01:52:54,179 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-12-22 01:52:54,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:52:54,198 INFO L225 Difference]: With dead ends: 1679 [2023-12-22 01:52:54,198 INFO L226 Difference]: Without dead ends: 863 [2023-12-22 01:52:54,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:52:54,208 INFO L413 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:52:54,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1631 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:52:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-12-22 01:52:54,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2023-12-22 01:52:54,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 861 states have (on average 1.8954703832752613) internal successors, (1632), 862 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:52:54,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1632 transitions. [2023-12-22 01:52:54,282 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1632 transitions. Word has length 25 [2023-12-22 01:52:54,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:52:54,282 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1632 transitions. [2023-12-22 01:52:54,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:52:54,282 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1632 transitions. [2023-12-22 01:52:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-22 01:52:54,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:52:54,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:52:54,299 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 [2023-12-22 01:52:54,487 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 [2023-12-22 01:52:54,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:52:54,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:52:54,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1401331215, now seen corresponding path program 1 times [2023-12-22 01:52:54,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:52:54,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95710673] [2023-12-22 01:52:54,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:52:54,491 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 [2023-12-22 01:52:54,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:52:54,493 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) [2023-12-22 01:52:54,498 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 [2023-12-22 01:52:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:52:54,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:52:54,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:52:54,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:52:54,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:52:54,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:52:54,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95710673] [2023-12-22 01:52:54,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95710673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:52:54,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:52:54,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:52:54,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242406722] [2023-12-22 01:52:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:52:54,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:52:54,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:52:54,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:52:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:52:54,606 INFO L87 Difference]: Start difference. First operand 863 states and 1632 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:52:54,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:52:54,685 INFO L93 Difference]: Finished difference Result 921 states and 1724 transitions. [2023-12-22 01:52:54,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:52:54,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-12-22 01:52:54,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:52:54,689 INFO L225 Difference]: With dead ends: 921 [2023-12-22 01:52:54,689 INFO L226 Difference]: Without dead ends: 863 [2023-12-22 01:52:54,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:52:54,690 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:52:54,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4833 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:52:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-12-22 01:52:54,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2023-12-22 01:52:54,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 861 states have (on average 1.8373983739837398) internal successors, (1582), 862 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:52:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1582 transitions. [2023-12-22 01:52:54,702 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1582 transitions. Word has length 25 [2023-12-22 01:52:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:52:54,702 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1582 transitions. [2023-12-22 01:52:54,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:52:54,703 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1582 transitions. [2023-12-22 01:52:54,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 01:52:54,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:52:54,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:52:54,709 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 [2023-12-22 01:52:54,907 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 [2023-12-22 01:52:54,908 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:52:54,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:52:54,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1440481375, now seen corresponding path program 1 times [2023-12-22 01:52:54,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:52:54,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704783121] [2023-12-22 01:52:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:52:54,909 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 [2023-12-22 01:52:54,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:52:54,910 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) [2023-12-22 01:52:54,942 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 [2023-12-22 01:52:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:52:54,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:52:54,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:52:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:52:55,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:52:55,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:52:55,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704783121] [2023-12-22 01:52:55,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704783121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:52:55,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:52:55,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:52:55,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129586966] [2023-12-22 01:52:55,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:52:55,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:52:55,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:52:55,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:52:55,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:52:55,088 INFO L87 Difference]: Start difference. First operand 863 states and 1582 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:33,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:33,199 INFO L93 Difference]: Finished difference Result 2367 states and 4455 transitions. [2023-12-22 01:53:33,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:33,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-12-22 01:53:33,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:33,207 INFO L225 Difference]: With dead ends: 2367 [2023-12-22 01:53:33,207 INFO L226 Difference]: Without dead ends: 1614 [2023-12-22 01:53:33,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:33,211 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 880 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:33,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 687 Invalid, 2864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [664 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 37.9s Time] [2023-12-22 01:53:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2023-12-22 01:53:33,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2023-12-22 01:53:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1612 states have (on average 1.544044665012407) internal successors, (2489), 1613 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2489 transitions. [2023-12-22 01:53:33,250 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2489 transitions. Word has length 59 [2023-12-22 01:53:33,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:33,252 INFO L495 AbstractCegarLoop]: Abstraction has 1614 states and 2489 transitions. [2023-12-22 01:53:33,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:33,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2489 transitions. [2023-12-22 01:53:33,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-22 01:53:33,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:33,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:33,261 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 (4)] Ended with exit code 0 [2023-12-22 01:53:33,459 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 [2023-12-22 01:53:33,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:33,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:33,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1958226728, now seen corresponding path program 1 times [2023-12-22 01:53:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:33,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005978820] [2023-12-22 01:53:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:33,462 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 [2023-12-22 01:53:33,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:33,463 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) [2023-12-22 01:53:33,484 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 [2023-12-22 01:53:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:33,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 01:53:33,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:35,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:35,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:35,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005978820] [2023-12-22 01:53:35,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005978820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:35,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:35,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-22 01:53:35,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451095204] [2023-12-22 01:53:35,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:35,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 01:53:35,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 01:53:35,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-22 01:53:35,031 INFO L87 Difference]: Start difference. First operand 1614 states and 2489 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:35,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:35,470 INFO L93 Difference]: Finished difference Result 2054 states and 3201 transitions. [2023-12-22 01:53:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 01:53:35,471 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-22 01:53:35,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:35,478 INFO L225 Difference]: With dead ends: 2054 [2023-12-22 01:53:35,478 INFO L226 Difference]: Without dead ends: 1999 [2023-12-22 01:53:35,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-22 01:53:35,481 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 3538 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:35,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 2561 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 01:53:35,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2023-12-22 01:53:35,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1720. [2023-12-22 01:53:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1718 states have (on average 1.549476135040745) internal successors, (2662), 1719 states have internal predecessors, (2662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2662 transitions. [2023-12-22 01:53:35,519 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2662 transitions. Word has length 74 [2023-12-22 01:53:35,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:35,521 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2662 transitions. [2023-12-22 01:53:35,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2662 transitions. [2023-12-22 01:53:35,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-22 01:53:35,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:35,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:35,529 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 [2023-12-22 01:53:35,727 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 [2023-12-22 01:53:35,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:35,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash -783812792, now seen corresponding path program 1 times [2023-12-22 01:53:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:35,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031904937] [2023-12-22 01:53:35,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:35,730 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 [2023-12-22 01:53:35,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:35,731 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) [2023-12-22 01:53:35,737 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 [2023-12-22 01:53:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:35,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:35,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:36,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:36,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:36,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:36,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031904937] [2023-12-22 01:53:36,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031904937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:36,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:36,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:36,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211061322] [2023-12-22 01:53:36,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:36,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:36,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:36,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:36,039 INFO L87 Difference]: Start difference. First operand 1720 states and 2662 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:36,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:36,137 INFO L93 Difference]: Finished difference Result 2026 states and 3158 transitions. [2023-12-22 01:53:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-22 01:53:36,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:36,145 INFO L225 Difference]: With dead ends: 2026 [2023-12-22 01:53:36,145 INFO L226 Difference]: Without dead ends: 1865 [2023-12-22 01:53:36,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:36,146 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 1498 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:36,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1656 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:53:36,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2023-12-22 01:53:36,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1860. [2023-12-22 01:53:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1858 states have (on average 1.5522066738428417) internal successors, (2884), 1859 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2884 transitions. [2023-12-22 01:53:36,211 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2884 transitions. Word has length 76 [2023-12-22 01:53:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:36,211 INFO L495 AbstractCegarLoop]: Abstraction has 1860 states and 2884 transitions. [2023-12-22 01:53:36,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2884 transitions. [2023-12-22 01:53:36,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-22 01:53:36,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:36,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:36,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 01:53:36,416 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 [2023-12-22 01:53:36,416 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:36,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1409717390, now seen corresponding path program 1 times [2023-12-22 01:53:36,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:36,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392272281] [2023-12-22 01:53:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:36,417 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 [2023-12-22 01:53:36,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:36,418 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) [2023-12-22 01:53:36,420 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 (7)] Waiting until timeout for monitored process [2023-12-22 01:53:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:36,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:53:36,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:36,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:36,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:36,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:36,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392272281] [2023-12-22 01:53:36,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392272281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:36,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:36,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:53:36,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363018902] [2023-12-22 01:53:36,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:36,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:53:36,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:36,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:53:36,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:53:36,532 INFO L87 Difference]: Start difference. First operand 1860 states and 2884 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:36,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:36,621 INFO L93 Difference]: Finished difference Result 1874 states and 2901 transitions. [2023-12-22 01:53:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:53:36,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-22 01:53:36,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:36,629 INFO L225 Difference]: With dead ends: 1874 [2023-12-22 01:53:36,629 INFO L226 Difference]: Without dead ends: 1872 [2023-12-22 01:53:36,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:53:36,631 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 1 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4726 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:36,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4726 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:53:36,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2023-12-22 01:53:36,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1868. [2023-12-22 01:53:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1866 states have (on average 1.5493033226152197) internal successors, (2891), 1867 states have internal predecessors, (2891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2891 transitions. [2023-12-22 01:53:36,670 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2891 transitions. Word has length 77 [2023-12-22 01:53:36,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:36,671 INFO L495 AbstractCegarLoop]: Abstraction has 1868 states and 2891 transitions. [2023-12-22 01:53:36,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:36,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2891 transitions. [2023-12-22 01:53:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 01:53:36,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:36,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:36,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:36,876 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 [2023-12-22 01:53:36,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:36,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:36,877 INFO L85 PathProgramCache]: Analyzing trace with hash 89162976, now seen corresponding path program 1 times [2023-12-22 01:53:36,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:36,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082389899] [2023-12-22 01:53:36,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:36,877 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 [2023-12-22 01:53:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:36,879 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) [2023-12-22 01:53:36,912 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 [2023-12-22 01:53:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:36,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:36,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:37,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:37,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:37,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082389899] [2023-12-22 01:53:37,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082389899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:37,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:37,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:37,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118819472] [2023-12-22 01:53:37,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:37,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:37,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:37,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:37,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:37,088 INFO L87 Difference]: Start difference. First operand 1868 states and 2891 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:37,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:37,128 INFO L93 Difference]: Finished difference Result 2462 states and 3831 transitions. [2023-12-22 01:53:37,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:37,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-22 01:53:37,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:37,135 INFO L225 Difference]: With dead ends: 2462 [2023-12-22 01:53:37,136 INFO L226 Difference]: Without dead ends: 2153 [2023-12-22 01:53:37,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:37,138 INFO L413 NwaCegarLoop]: 1644 mSDtfsCounter, 1515 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:37,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:37,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2023-12-22 01:53:37,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2151. [2023-12-22 01:53:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 2149 states have (on average 1.5509539320614238) internal successors, (3333), 2150 states have internal predecessors, (3333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3333 transitions. [2023-12-22 01:53:37,225 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3333 transitions. Word has length 78 [2023-12-22 01:53:37,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:37,225 INFO L495 AbstractCegarLoop]: Abstraction has 2151 states and 3333 transitions. [2023-12-22 01:53:37,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:37,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3333 transitions. [2023-12-22 01:53:37,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 01:53:37,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:37,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:37,234 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 (8)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:37,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 [2023-12-22 01:53:37,433 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:37,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash -321223712, now seen corresponding path program 1 times [2023-12-22 01:53:37,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:37,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320055287] [2023-12-22 01:53:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:37,434 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 [2023-12-22 01:53:37,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:37,451 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:53:37,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 01:53:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:37,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:37,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:37,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:37,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:37,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320055287] [2023-12-22 01:53:37,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320055287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:37,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:37,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:37,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235871398] [2023-12-22 01:53:37,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:37,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:37,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:37,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:37,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:37,640 INFO L87 Difference]: Start difference. First operand 2151 states and 3333 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:37,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:37,687 INFO L93 Difference]: Finished difference Result 3287 states and 5115 transitions. [2023-12-22 01:53:37,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:37,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-22 01:53:37,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:37,695 INFO L225 Difference]: With dead ends: 3287 [2023-12-22 01:53:37,695 INFO L226 Difference]: Without dead ends: 2695 [2023-12-22 01:53:37,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:37,699 INFO L413 NwaCegarLoop]: 1642 mSDtfsCounter, 1513 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:37,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1739 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2023-12-22 01:53:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2693. [2023-12-22 01:53:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 2691 states have (on average 1.5492382014121144) internal successors, (4169), 2692 states have internal predecessors, (4169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 4169 transitions. [2023-12-22 01:53:37,745 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 4169 transitions. Word has length 78 [2023-12-22 01:53:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:37,746 INFO L495 AbstractCegarLoop]: Abstraction has 2693 states and 4169 transitions. [2023-12-22 01:53:37,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:37,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 4169 transitions. [2023-12-22 01:53:37,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 01:53:37,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:37,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:37,764 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 (9)] Ended with exit code 0 [2023-12-22 01:53:37,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:53:37,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:37,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:37,951 INFO L85 PathProgramCache]: Analyzing trace with hash -549862944, now seen corresponding path program 1 times [2023-12-22 01:53:37,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:37,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575181356] [2023-12-22 01:53:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:37,952 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 [2023-12-22 01:53:37,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:37,953 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:53:37,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 01:53:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:38,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:38,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:38,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:38,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:38,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575181356] [2023-12-22 01:53:38,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575181356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:38,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:38,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:38,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437845043] [2023-12-22 01:53:38,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:38,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:38,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:38,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:38,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:38,118 INFO L87 Difference]: Start difference. First operand 2693 states and 4169 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:38,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:38,163 INFO L93 Difference]: Finished difference Result 4865 states and 7539 transitions. [2023-12-22 01:53:38,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:38,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-22 01:53:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:38,173 INFO L225 Difference]: With dead ends: 4865 [2023-12-22 01:53:38,174 INFO L226 Difference]: Without dead ends: 3731 [2023-12-22 01:53:38,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:38,178 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 1509 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:38,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1735 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2023-12-22 01:53:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3729. [2023-12-22 01:53:38,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3729 states, 3727 states have (on average 1.5414542527502013) internal successors, (5745), 3728 states have internal predecessors, (5745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3729 states to 3729 states and 5745 transitions. [2023-12-22 01:53:38,248 INFO L78 Accepts]: Start accepts. Automaton has 3729 states and 5745 transitions. Word has length 78 [2023-12-22 01:53:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:38,249 INFO L495 AbstractCegarLoop]: Abstraction has 3729 states and 5745 transitions. [2023-12-22 01:53:38,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3729 states and 5745 transitions. [2023-12-22 01:53:38,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 01:53:38,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:38,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:38,255 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 (10)] Ended with exit code 0 [2023-12-22 01:53:38,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:53:38,453 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:38,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:38,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1175519008, now seen corresponding path program 1 times [2023-12-22 01:53:38,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:38,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111304194] [2023-12-22 01:53:38,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:38,454 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 [2023-12-22 01:53:38,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:38,455 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2023-12-22 01:53:38,462 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 (11)] Waiting until timeout for monitored process [2023-12-22 01:53:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:38,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:38,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:38,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:38,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:38,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111304194] [2023-12-22 01:53:38,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111304194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:38,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:38,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:38,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315444556] [2023-12-22 01:53:38,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:38,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:38,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:38,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:38,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:38,621 INFO L87 Difference]: Start difference. First operand 3729 states and 5745 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:38,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:38,692 INFO L93 Difference]: Finished difference Result 7877 states and 12099 transitions. [2023-12-22 01:53:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:38,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-22 01:53:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:38,714 INFO L225 Difference]: With dead ends: 7877 [2023-12-22 01:53:38,714 INFO L226 Difference]: Without dead ends: 5707 [2023-12-22 01:53:38,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:38,719 INFO L413 NwaCegarLoop]: 1628 mSDtfsCounter, 1507 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:38,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:38,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2023-12-22 01:53:38,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5705. [2023-12-22 01:53:38,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5705 states, 5703 states have (on average 1.5263896194985096) internal successors, (8705), 5704 states have internal predecessors, (8705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:38,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5705 states to 5705 states and 8705 transitions. [2023-12-22 01:53:38,850 INFO L78 Accepts]: Start accepts. Automaton has 5705 states and 8705 transitions. Word has length 78 [2023-12-22 01:53:38,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:38,850 INFO L495 AbstractCegarLoop]: Abstraction has 5705 states and 8705 transitions. [2023-12-22 01:53:38,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:38,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5705 states and 8705 transitions. [2023-12-22 01:53:38,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 01:53:38,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:38,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:38,854 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 (11)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:39,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 [2023-12-22 01:53:39,056 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:39,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash -286785568, now seen corresponding path program 1 times [2023-12-22 01:53:39,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:39,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076965522] [2023-12-22 01:53:39,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:39,057 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 [2023-12-22 01:53:39,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:39,077 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-12-22 01:53:39,093 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 (12)] Waiting until timeout for monitored process [2023-12-22 01:53:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:39,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:39,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:39,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:39,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:39,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076965522] [2023-12-22 01:53:39,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076965522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:39,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:39,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:39,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774696926] [2023-12-22 01:53:39,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:39,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:39,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:39,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:39,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:39,227 INFO L87 Difference]: Start difference. First operand 5705 states and 8705 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:39,319 INFO L93 Difference]: Finished difference Result 13613 states and 20643 transitions. [2023-12-22 01:53:39,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:39,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-22 01:53:39,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:39,335 INFO L225 Difference]: With dead ends: 13613 [2023-12-22 01:53:39,335 INFO L226 Difference]: Without dead ends: 9467 [2023-12-22 01:53:39,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:39,342 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 1505 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:39,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1739 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:39,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9467 states. [2023-12-22 01:53:39,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9467 to 9465. [2023-12-22 01:53:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9465 states, 9463 states have (on average 1.5049138750924653) internal successors, (14241), 9464 states have internal predecessors, (14241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:39,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9465 states to 9465 states and 14241 transitions. [2023-12-22 01:53:39,579 INFO L78 Accepts]: Start accepts. Automaton has 9465 states and 14241 transitions. Word has length 78 [2023-12-22 01:53:39,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:39,579 INFO L495 AbstractCegarLoop]: Abstraction has 9465 states and 14241 transitions. [2023-12-22 01:53:39,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand 9465 states and 14241 transitions. [2023-12-22 01:53:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 01:53:39,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:39,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:39,586 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 (12)] Ended with exit code 0 [2023-12-22 01:53:39,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2023-12-22 01:53:39,784 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:39,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:39,784 INFO L85 PathProgramCache]: Analyzing trace with hash -589806880, now seen corresponding path program 1 times [2023-12-22 01:53:39,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:39,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793329238] [2023-12-22 01:53:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:39,785 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 [2023-12-22 01:53:39,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:39,786 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2023-12-22 01:53:39,790 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 (13)] Waiting until timeout for monitored process [2023-12-22 01:53:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:39,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:39,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:39,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:39,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:39,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:39,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793329238] [2023-12-22 01:53:39,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793329238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:39,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:39,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:39,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256163788] [2023-12-22 01:53:39,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:39,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:39,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:39,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:39,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:39,952 INFO L87 Difference]: Start difference. First operand 9465 states and 14241 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:40,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:40,143 INFO L93 Difference]: Finished difference Result 24509 states and 36579 transitions. [2023-12-22 01:53:40,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:40,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-22 01:53:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:40,171 INFO L225 Difference]: With dead ends: 24509 [2023-12-22 01:53:40,172 INFO L226 Difference]: Without dead ends: 16603 [2023-12-22 01:53:40,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:40,179 INFO L413 NwaCegarLoop]: 1640 mSDtfsCounter, 1511 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:40,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1741 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:40,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16603 states. [2023-12-22 01:53:40,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16603 to 16601. [2023-12-22 01:53:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16601 states, 16599 states have (on average 1.478703536357612) internal successors, (24545), 16600 states have internal predecessors, (24545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16601 states to 16601 states and 24545 transitions. [2023-12-22 01:53:40,525 INFO L78 Accepts]: Start accepts. Automaton has 16601 states and 24545 transitions. Word has length 78 [2023-12-22 01:53:40,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:40,525 INFO L495 AbstractCegarLoop]: Abstraction has 16601 states and 24545 transitions. [2023-12-22 01:53:40,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 16601 states and 24545 transitions. [2023-12-22 01:53:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-22 01:53:40,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:40,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:40,533 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 (13)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:40,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 [2023-12-22 01:53:40,729 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:40,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:40,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1500697979, now seen corresponding path program 1 times [2023-12-22 01:53:40,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:40,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511963611] [2023-12-22 01:53:40,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:40,730 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 [2023-12-22 01:53:40,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:40,731 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-12-22 01:53:40,804 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 (14)] Waiting until timeout for monitored process [2023-12-22 01:53:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:40,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:40,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:40,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:40,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:40,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511963611] [2023-12-22 01:53:40,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511963611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:40,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:40,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455976669] [2023-12-22 01:53:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:40,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:40,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:40,974 INFO L87 Difference]: Start difference. First operand 16601 states and 24545 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:41,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:41,221 INFO L93 Difference]: Finished difference Result 31968 states and 47591 transitions. [2023-12-22 01:53:41,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:41,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-22 01:53:41,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:41,261 INFO L225 Difference]: With dead ends: 31968 [2023-12-22 01:53:41,262 INFO L226 Difference]: Without dead ends: 23709 [2023-12-22 01:53:41,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:41,269 INFO L413 NwaCegarLoop]: 1649 mSDtfsCounter, 1514 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:41,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23709 states. [2023-12-22 01:53:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23709 to 23707. [2023-12-22 01:53:41,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23707 states, 23705 states have (on average 1.4728960134992617) internal successors, (34915), 23706 states have internal predecessors, (34915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23707 states to 23707 states and 34915 transitions. [2023-12-22 01:53:41,733 INFO L78 Accepts]: Start accepts. Automaton has 23707 states and 34915 transitions. Word has length 80 [2023-12-22 01:53:41,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:41,733 INFO L495 AbstractCegarLoop]: Abstraction has 23707 states and 34915 transitions. [2023-12-22 01:53:41,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:41,734 INFO L276 IsEmpty]: Start isEmpty. Operand 23707 states and 34915 transitions. [2023-12-22 01:53:41,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 01:53:41,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:41,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:41,747 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 (14)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:41,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 [2023-12-22 01:53:41,940 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:41,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:41,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1592155180, now seen corresponding path program 1 times [2023-12-22 01:53:41,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:41,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265746569] [2023-12-22 01:53:41,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:41,973 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 [2023-12-22 01:53:41,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:41,981 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2023-12-22 01:53:42,029 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 (15)] Waiting until timeout for monitored process [2023-12-22 01:53:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:42,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:42,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:42,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:42,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:42,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265746569] [2023-12-22 01:53:42,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265746569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:42,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:42,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:42,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198262533] [2023-12-22 01:53:42,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:42,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:42,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:42,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:42,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:42,197 INFO L87 Difference]: Start difference. First operand 23707 states and 34915 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:42,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:42,457 INFO L93 Difference]: Finished difference Result 39094 states and 57789 transitions. [2023-12-22 01:53:42,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:42,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-22 01:53:42,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:42,487 INFO L225 Difference]: With dead ends: 39094 [2023-12-22 01:53:42,487 INFO L226 Difference]: Without dead ends: 16948 [2023-12-22 01:53:42,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:42,498 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 66 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3200 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:42,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3200 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:42,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16948 states. [2023-12-22 01:53:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16948 to 16946. [2023-12-22 01:53:42,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16946 states, 16944 states have (on average 1.4802880075542966) internal successors, (25082), 16945 states have internal predecessors, (25082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16946 states to 16946 states and 25082 transitions. [2023-12-22 01:53:42,851 INFO L78 Accepts]: Start accepts. Automaton has 16946 states and 25082 transitions. Word has length 100 [2023-12-22 01:53:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:42,851 INFO L495 AbstractCegarLoop]: Abstraction has 16946 states and 25082 transitions. [2023-12-22 01:53:42,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 16946 states and 25082 transitions. [2023-12-22 01:53:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-22 01:53:42,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:42,854 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:42,857 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 (15)] Ended with exit code 0 [2023-12-22 01:53:43,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 [2023-12-22 01:53:43,057 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:43,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:43,058 INFO L85 PathProgramCache]: Analyzing trace with hash -234201391, now seen corresponding path program 1 times [2023-12-22 01:53:43,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:43,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651667753] [2023-12-22 01:53:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:43,059 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 [2023-12-22 01:53:43,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:43,060 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-12-22 01:53:43,061 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 (16)] Waiting until timeout for monitored process [2023-12-22 01:53:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:43,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:53:43,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:44,012 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:44,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:53:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:44,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:44,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651667753] [2023-12-22 01:53:44,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651667753] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:53:44,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:53:44,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:53:44,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968913406] [2023-12-22 01:53:44,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:53:44,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:53:44,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:53:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:53:44,358 INFO L87 Difference]: Start difference. First operand 16946 states and 25082 transitions. Second operand has 16 states, 16 states have (on average 11.625) internal successors, (186), 16 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:46,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:46,497 INFO L93 Difference]: Finished difference Result 58140 states and 85087 transitions. [2023-12-22 01:53:46,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:53:46,507 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.625) internal successors, (186), 16 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-22 01:53:46,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:46,572 INFO L225 Difference]: With dead ends: 58140 [2023-12-22 01:53:46,572 INFO L226 Difference]: Without dead ends: 42778 [2023-12-22 01:53:46,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 01:53:46,594 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 5605 mSDsluCounter, 8059 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5605 SdHoareTripleChecker+Valid, 9678 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:46,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5605 Valid, 9678 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:53:46,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42778 states. [2023-12-22 01:53:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42778 to 32306. [2023-12-22 01:53:47,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32306 states, 32304 states have (on average 1.4718301139177812) internal successors, (47546), 32305 states have internal predecessors, (47546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32306 states to 32306 states and 47546 transitions. [2023-12-22 01:53:47,399 INFO L78 Accepts]: Start accepts. Automaton has 32306 states and 47546 transitions. Word has length 102 [2023-12-22 01:53:47,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:47,400 INFO L495 AbstractCegarLoop]: Abstraction has 32306 states and 47546 transitions. [2023-12-22 01:53:47,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.625) internal successors, (186), 16 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:47,400 INFO L276 IsEmpty]: Start isEmpty. Operand 32306 states and 47546 transitions. [2023-12-22 01:53:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-22 01:53:47,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:47,406 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:47,412 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 (16)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:47,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-12-22 01:53:47,611 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:47,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:47,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1213919199, now seen corresponding path program 1 times [2023-12-22 01:53:47,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:47,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278131730] [2023-12-22 01:53:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:47,612 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 [2023-12-22 01:53:47,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:47,613 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-12-22 01:53:47,643 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 (17)] Waiting until timeout for monitored process [2023-12-22 01:53:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:47,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:47,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:47,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:47,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:47,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278131730] [2023-12-22 01:53:47,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278131730] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:47,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:47,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:47,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745270895] [2023-12-22 01:53:47,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:47,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:47,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:47,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:47,752 INFO L87 Difference]: Start difference. First operand 32306 states and 47546 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:47,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:47,994 INFO L93 Difference]: Finished difference Result 47670 states and 70108 transitions. [2023-12-22 01:53:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:47,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-22 01:53:47,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:48,016 INFO L225 Difference]: With dead ends: 47670 [2023-12-22 01:53:48,017 INFO L226 Difference]: Without dead ends: 16948 [2023-12-22 01:53:48,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:48,041 INFO L413 NwaCegarLoop]: 1628 mSDtfsCounter, 60 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:48,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3185 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16948 states. [2023-12-22 01:53:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16948 to 16946. [2023-12-22 01:53:48,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16946 states, 16944 states have (on average 1.4632908404154863) internal successors, (24794), 16945 states have internal predecessors, (24794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:48,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16946 states to 16946 states and 24794 transitions. [2023-12-22 01:53:48,454 INFO L78 Accepts]: Start accepts. Automaton has 16946 states and 24794 transitions. Word has length 104 [2023-12-22 01:53:48,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:48,454 INFO L495 AbstractCegarLoop]: Abstraction has 16946 states and 24794 transitions. [2023-12-22 01:53:48,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 16946 states and 24794 transitions. [2023-12-22 01:53:48,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-22 01:53:48,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:48,458 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:48,464 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 (17)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:48,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 [2023-12-22 01:53:48,662 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:48,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:48,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1957575150, now seen corresponding path program 1 times [2023-12-22 01:53:48,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:48,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647681066] [2023-12-22 01:53:48,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:48,663 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 [2023-12-22 01:53:48,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:48,664 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-22 01:53:48,665 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 (18)] Waiting until timeout for monitored process [2023-12-22 01:53:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:48,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:53:48,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:49,676 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:49,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:53:50,007 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:50,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:50,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647681066] [2023-12-22 01:53:50,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647681066] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:53:50,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:53:50,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:53:50,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501270602] [2023-12-22 01:53:50,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:53:50,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:53:50,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:50,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:53:50,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:53:50,011 INFO L87 Difference]: Start difference. First operand 16946 states and 24794 transitions. Second operand has 16 states, 16 states have (on average 12.125) internal successors, (194), 16 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:51,071 INFO L93 Difference]: Finished difference Result 32704 states and 47563 transitions. [2023-12-22 01:53:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 01:53:51,072 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.125) internal successors, (194), 16 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-22 01:53:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:51,090 INFO L225 Difference]: With dead ends: 32704 [2023-12-22 01:53:51,090 INFO L226 Difference]: Without dead ends: 17342 [2023-12-22 01:53:51,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-22 01:53:51,117 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 3161 mSDsluCounter, 10717 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3161 SdHoareTripleChecker+Valid, 12240 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:51,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3161 Valid, 12240 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 01:53:51,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17342 states. [2023-12-22 01:53:51,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17342 to 16956. [2023-12-22 01:53:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16956 states, 16954 states have (on average 1.463135543234635) internal successors, (24806), 16955 states have internal predecessors, (24806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16956 states to 16956 states and 24806 transitions. [2023-12-22 01:53:51,520 INFO L78 Accepts]: Start accepts. Automaton has 16956 states and 24806 transitions. Word has length 105 [2023-12-22 01:53:51,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:51,520 INFO L495 AbstractCegarLoop]: Abstraction has 16956 states and 24806 transitions. [2023-12-22 01:53:51,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.125) internal successors, (194), 16 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:51,520 INFO L276 IsEmpty]: Start isEmpty. Operand 16956 states and 24806 transitions. [2023-12-22 01:53:51,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-22 01:53:51,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:51,523 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:51,540 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 (18)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:51,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-22 01:53:51,727 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:51,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:51,727 INFO L85 PathProgramCache]: Analyzing trace with hash 783032906, now seen corresponding path program 1 times [2023-12-22 01:53:51,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:51,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642465059] [2023-12-22 01:53:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:51,728 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 [2023-12-22 01:53:51,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:51,729 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-22 01:53:51,730 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 (19)] Waiting until timeout for monitored process [2023-12-22 01:53:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:51,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:51,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:51,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:51,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:51,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642465059] [2023-12-22 01:53:51,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642465059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:51,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:51,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:51,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408532493] [2023-12-22 01:53:51,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:51,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:51,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:51,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:51,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:51,871 INFO L87 Difference]: Start difference. First operand 16956 states and 24806 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:52,049 INFO L93 Difference]: Finished difference Result 24640 states and 35992 transitions. [2023-12-22 01:53:52,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:52,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-22 01:53:52,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:52,060 INFO L225 Difference]: With dead ends: 24640 [2023-12-22 01:53:52,061 INFO L226 Difference]: Without dead ends: 9278 [2023-12-22 01:53:52,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:52,071 INFO L413 NwaCegarLoop]: 1621 mSDtfsCounter, 56 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:52,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3170 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:52,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2023-12-22 01:53:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 9276. [2023-12-22 01:53:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9276 states, 9274 states have (on average 1.45848609014449) internal successors, (13526), 9275 states have internal predecessors, (13526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9276 states to 9276 states and 13526 transitions. [2023-12-22 01:53:52,223 INFO L78 Accepts]: Start accepts. Automaton has 9276 states and 13526 transitions. Word has length 107 [2023-12-22 01:53:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:52,223 INFO L495 AbstractCegarLoop]: Abstraction has 9276 states and 13526 transitions. [2023-12-22 01:53:52,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:52,223 INFO L276 IsEmpty]: Start isEmpty. Operand 9276 states and 13526 transitions. [2023-12-22 01:53:52,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-22 01:53:52,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:52,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:52,227 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 (19)] Ended with exit code 0 [2023-12-22 01:53:52,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-22 01:53:52,430 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:52,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:52,431 INFO L85 PathProgramCache]: Analyzing trace with hash -971805723, now seen corresponding path program 1 times [2023-12-22 01:53:52,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:52,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305236261] [2023-12-22 01:53:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:52,431 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 [2023-12-22 01:53:52,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:52,432 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-22 01:53:52,434 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 (20)] Waiting until timeout for monitored process [2023-12-22 01:53:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:52,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:53:52,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:53,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:53:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:53,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:53,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305236261] [2023-12-22 01:53:53,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305236261] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:53:53,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:53:53,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:53:53,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299331792] [2023-12-22 01:53:53,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:53:53,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:53:53,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:53,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:53:53,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:53:53,672 INFO L87 Difference]: Start difference. First operand 9276 states and 13526 transitions. Second operand has 16 states, 16 states have (on average 12.625) internal successors, (202), 16 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:55,496 INFO L93 Difference]: Finished difference Result 30500 states and 43866 transitions. [2023-12-22 01:53:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:53:55,499 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.625) internal successors, (202), 16 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-22 01:53:55,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:55,522 INFO L225 Difference]: With dead ends: 30500 [2023-12-22 01:53:55,523 INFO L226 Difference]: Without dead ends: 22818 [2023-12-22 01:53:55,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:53:55,535 INFO L413 NwaCegarLoop]: 1639 mSDtfsCounter, 5246 mSDsluCounter, 11174 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5246 SdHoareTripleChecker+Valid, 12813 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:55,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5246 Valid, 12813 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:53:55,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22818 states. [2023-12-22 01:53:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22818 to 17532. [2023-12-22 01:53:56,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17532 states, 17530 states have (on average 1.4314888762122076) internal successors, (25094), 17531 states have internal predecessors, (25094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:56,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17532 states to 17532 states and 25094 transitions. [2023-12-22 01:53:56,040 INFO L78 Accepts]: Start accepts. Automaton has 17532 states and 25094 transitions. Word has length 108 [2023-12-22 01:53:56,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:56,040 INFO L495 AbstractCegarLoop]: Abstraction has 17532 states and 25094 transitions. [2023-12-22 01:53:56,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.625) internal successors, (202), 16 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:56,041 INFO L276 IsEmpty]: Start isEmpty. Operand 17532 states and 25094 transitions. [2023-12-22 01:53:56,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-22 01:53:56,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:56,043 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:56,049 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 (20)] Forceful destruction successful, exit code 0 [2023-12-22 01:53:56,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-22 01:53:56,248 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:56,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:56,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1135632333, now seen corresponding path program 1 times [2023-12-22 01:53:56,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:56,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736259755] [2023-12-22 01:53:56,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:56,249 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 [2023-12-22 01:53:56,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:56,250 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-22 01:53:56,253 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 (21)] Waiting until timeout for monitored process [2023-12-22 01:53:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:56,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:53:56,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:56,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:56,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:56,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736259755] [2023-12-22 01:53:56,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736259755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:56,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:56,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:53:56,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686415611] [2023-12-22 01:53:56,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:56,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:53:56,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:56,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:53:56,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:56,394 INFO L87 Difference]: Start difference. First operand 17532 states and 25094 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:56,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:56,545 INFO L93 Difference]: Finished difference Result 25504 states and 36424 transitions. [2023-12-22 01:53:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:53:56,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-22 01:53:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:56,554 INFO L225 Difference]: With dead ends: 25504 [2023-12-22 01:53:56,554 INFO L226 Difference]: Without dead ends: 9566 [2023-12-22 01:53:56,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:53:56,564 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 52 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:56,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3155 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:53:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9566 states. [2023-12-22 01:53:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9566 to 9564. [2023-12-22 01:53:56,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9564 states, 9562 states have (on average 1.4296172348880987) internal successors, (13670), 9563 states have internal predecessors, (13670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9564 states to 9564 states and 13670 transitions. [2023-12-22 01:53:56,718 INFO L78 Accepts]: Start accepts. Automaton has 9564 states and 13670 transitions. Word has length 110 [2023-12-22 01:53:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:56,719 INFO L495 AbstractCegarLoop]: Abstraction has 9564 states and 13670 transitions. [2023-12-22 01:53:56,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 9564 states and 13670 transitions. [2023-12-22 01:53:56,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-22 01:53:56,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:56,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:53:56,724 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 (21)] Ended with exit code 0 [2023-12-22 01:53:56,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-22 01:53:56,924 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:56,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:56,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1100258754, now seen corresponding path program 1 times [2023-12-22 01:53:56,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:56,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192350279] [2023-12-22 01:53:56,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:56,925 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 [2023-12-22 01:53:56,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:56,926 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-22 01:53:56,927 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 (22)] Waiting until timeout for monitored process [2023-12-22 01:53:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:57,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:53:57,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:57,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:57,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:53:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:58,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:58,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192350279] [2023-12-22 01:53:58,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192350279] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:53:58,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:53:58,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:53:58,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069642205] [2023-12-22 01:53:58,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:53:58,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:53:58,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:53:58,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:53:58,188 INFO L87 Difference]: Start difference. First operand 9564 states and 13670 transitions. Second operand has 16 states, 16 states have (on average 13.125) internal successors, (210), 16 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:59,908 INFO L93 Difference]: Finished difference Result 30788 states and 43338 transitions. [2023-12-22 01:53:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:53:59,908 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.125) internal successors, (210), 16 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-22 01:53:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:59,932 INFO L225 Difference]: With dead ends: 30788 [2023-12-22 01:53:59,933 INFO L226 Difference]: Without dead ends: 22818 [2023-12-22 01:53:59,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:53:59,944 INFO L413 NwaCegarLoop]: 1621 mSDtfsCounter, 6674 mSDsluCounter, 12623 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6674 SdHoareTripleChecker+Valid, 14244 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:59,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6674 Valid, 14244 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:53:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22818 states. [2023-12-22 01:54:00,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22818 to 18108. [2023-12-22 01:54:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18108 states, 18106 states have (on average 1.40185573842925) internal successors, (25382), 18107 states have internal predecessors, (25382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18108 states to 18108 states and 25382 transitions. [2023-12-22 01:54:00,389 INFO L78 Accepts]: Start accepts. Automaton has 18108 states and 25382 transitions. Word has length 111 [2023-12-22 01:54:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:00,389 INFO L495 AbstractCegarLoop]: Abstraction has 18108 states and 25382 transitions. [2023-12-22 01:54:00,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.125) internal successors, (210), 16 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 18108 states and 25382 transitions. [2023-12-22 01:54:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-22 01:54:00,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:00,391 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:54:00,395 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 (22)] Ended with exit code 0 [2023-12-22 01:54:00,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-22 01:54:00,595 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:00,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:00,595 INFO L85 PathProgramCache]: Analyzing trace with hash 858988214, now seen corresponding path program 1 times [2023-12-22 01:54:00,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:00,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588822784] [2023-12-22 01:54:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:00,596 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 [2023-12-22 01:54:00,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:00,597 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-22 01:54:00,598 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 (23)] Waiting until timeout for monitored process [2023-12-22 01:54:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:00,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:54:00,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:00,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:54:00,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:00,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588822784] [2023-12-22 01:54:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588822784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:54:00,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:54:00,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:54:00,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021515888] [2023-12-22 01:54:00,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:54:00,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:54:00,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:00,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:54:00,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:54:00,766 INFO L87 Difference]: Start difference. First operand 18108 states and 25382 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:00,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:54:00,929 INFO L93 Difference]: Finished difference Result 26368 states and 36856 transitions. [2023-12-22 01:54:00,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:54:00,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-22 01:54:00,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:54:00,940 INFO L225 Difference]: With dead ends: 26368 [2023-12-22 01:54:00,940 INFO L226 Difference]: Without dead ends: 9854 [2023-12-22 01:54:00,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:54:00,949 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 48 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:54:00,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3140 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:54:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9854 states. [2023-12-22 01:54:01,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9854 to 9852. [2023-12-22 01:54:01,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9852 states, 9850 states have (on average 1.4024365482233503) internal successors, (13814), 9851 states have internal predecessors, (13814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9852 states to 9852 states and 13814 transitions. [2023-12-22 01:54:01,200 INFO L78 Accepts]: Start accepts. Automaton has 9852 states and 13814 transitions. Word has length 113 [2023-12-22 01:54:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:01,200 INFO L495 AbstractCegarLoop]: Abstraction has 9852 states and 13814 transitions. [2023-12-22 01:54:01,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9852 states and 13814 transitions. [2023-12-22 01:54:01,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 01:54:01,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:01,202 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:54:01,208 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 (23)] Ended with exit code 0 [2023-12-22 01:54:01,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-22 01:54:01,405 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:01,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:01,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1154169593, now seen corresponding path program 1 times [2023-12-22 01:54:01,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:01,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827448807] [2023-12-22 01:54:01,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:01,406 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 [2023-12-22 01:54:01,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:01,407 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-22 01:54:01,413 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 (24)] Waiting until timeout for monitored process [2023-12-22 01:54:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:01,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:54:01,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:02,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:54:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:02,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:02,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827448807] [2023-12-22 01:54:02,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827448807] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:54:02,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:54:02,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:54:02,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967592612] [2023-12-22 01:54:02,664 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:54:02,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:54:02,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:02,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:54:02,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:54:02,666 INFO L87 Difference]: Start difference. First operand 9852 states and 13814 transitions. Second operand has 16 states, 16 states have (on average 13.625) internal successors, (218), 16 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:04,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:54:04,246 INFO L93 Difference]: Finished difference Result 31076 states and 42810 transitions. [2023-12-22 01:54:04,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:54:04,246 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.625) internal successors, (218), 16 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 01:54:04,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:54:04,269 INFO L225 Difference]: With dead ends: 31076 [2023-12-22 01:54:04,269 INFO L226 Difference]: Without dead ends: 22818 [2023-12-22 01:54:04,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:54:04,280 INFO L413 NwaCegarLoop]: 1603 mSDtfsCounter, 5155 mSDsluCounter, 12550 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5155 SdHoareTripleChecker+Valid, 14153 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:54:04,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5155 Valid, 14153 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:54:04,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22818 states. [2023-12-22 01:54:04,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22818 to 18684. [2023-12-22 01:54:04,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18684 states, 18682 states have (on average 1.3740498875923348) internal successors, (25670), 18683 states have internal predecessors, (25670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18684 states to 18684 states and 25670 transitions. [2023-12-22 01:54:04,684 INFO L78 Accepts]: Start accepts. Automaton has 18684 states and 25670 transitions. Word has length 114 [2023-12-22 01:54:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:04,684 INFO L495 AbstractCegarLoop]: Abstraction has 18684 states and 25670 transitions. [2023-12-22 01:54:04,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.625) internal successors, (218), 16 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 18684 states and 25670 transitions. [2023-12-22 01:54:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-22 01:54:04,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:04,687 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:54:04,690 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 (24)] Forceful destruction successful, exit code 0 [2023-12-22 01:54:04,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-22 01:54:04,891 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:04,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1954710151, now seen corresponding path program 1 times [2023-12-22 01:54:04,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:04,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497355948] [2023-12-22 01:54:04,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:04,892 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 [2023-12-22 01:54:04,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:04,893 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-22 01:54:04,894 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 (25)] Waiting until timeout for monitored process [2023-12-22 01:54:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:04,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:54:04,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:05,055 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:05,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:54:05,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:05,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497355948] [2023-12-22 01:54:05,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497355948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:54:05,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:54:05,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:54:05,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630005834] [2023-12-22 01:54:05,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:54:05,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:54:05,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:05,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:54:05,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:54:05,056 INFO L87 Difference]: Start difference. First operand 18684 states and 25670 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:05,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:54:05,251 INFO L93 Difference]: Finished difference Result 27232 states and 37288 transitions. [2023-12-22 01:54:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:54:05,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-22 01:54:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:54:05,262 INFO L225 Difference]: With dead ends: 27232 [2023-12-22 01:54:05,263 INFO L226 Difference]: Without dead ends: 10142 [2023-12-22 01:54:05,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:54:05,273 INFO L413 NwaCegarLoop]: 1600 mSDtfsCounter, 44 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:54:05,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3125 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:54:05,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10142 states. [2023-12-22 01:54:05,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10142 to 10140. [2023-12-22 01:54:05,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10140 states, 10138 states have (on average 1.3768001578220557) internal successors, (13958), 10139 states have internal predecessors, (13958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:05,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10140 states to 10140 states and 13958 transitions. [2023-12-22 01:54:05,468 INFO L78 Accepts]: Start accepts. Automaton has 10140 states and 13958 transitions. Word has length 116 [2023-12-22 01:54:05,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:05,468 INFO L495 AbstractCegarLoop]: Abstraction has 10140 states and 13958 transitions. [2023-12-22 01:54:05,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10140 states and 13958 transitions. [2023-12-22 01:54:05,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-22 01:54:05,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:05,470 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:54:05,479 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 (25)] Forceful destruction successful, exit code 0 [2023-12-22 01:54:05,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-22 01:54:05,674 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:05,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:05,675 INFO L85 PathProgramCache]: Analyzing trace with hash -796789866, now seen corresponding path program 1 times [2023-12-22 01:54:05,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:05,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994698935] [2023-12-22 01:54:05,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:05,675 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 [2023-12-22 01:54:05,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:05,676 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-22 01:54:05,677 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 (26)] Waiting until timeout for monitored process [2023-12-22 01:54:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:05,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:54:05,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:06,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:54:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:07,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:07,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994698935] [2023-12-22 01:54:07,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994698935] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:54:07,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:54:07,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:54:07,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884683664] [2023-12-22 01:54:07,022 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:54:07,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:54:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:07,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:54:07,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:54:07,023 INFO L87 Difference]: Start difference. First operand 10140 states and 13958 transitions. Second operand has 16 states, 16 states have (on average 14.125) internal successors, (226), 16 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:08,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:54:08,587 INFO L93 Difference]: Finished difference Result 31364 states and 42282 transitions. [2023-12-22 01:54:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:54:08,588 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.125) internal successors, (226), 16 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-22 01:54:08,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:54:08,613 INFO L225 Difference]: With dead ends: 31364 [2023-12-22 01:54:08,614 INFO L226 Difference]: Without dead ends: 22818 [2023-12-22 01:54:08,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:54:08,626 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 2132 mSDsluCounter, 10999 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 12584 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:54:08,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 12584 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:54:08,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22818 states. [2023-12-22 01:54:09,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22818 to 19260. [2023-12-22 01:54:09,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19260 states, 19258 states have (on average 1.347907363173746) internal successors, (25958), 19259 states have internal predecessors, (25958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:09,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19260 states to 19260 states and 25958 transitions. [2023-12-22 01:54:09,115 INFO L78 Accepts]: Start accepts. Automaton has 19260 states and 25958 transitions. Word has length 117 [2023-12-22 01:54:09,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:09,115 INFO L495 AbstractCegarLoop]: Abstraction has 19260 states and 25958 transitions. [2023-12-22 01:54:09,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.125) internal successors, (226), 16 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:09,116 INFO L276 IsEmpty]: Start isEmpty. Operand 19260 states and 25958 transitions. [2023-12-22 01:54:09,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-22 01:54:09,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:09,119 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:54:09,122 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 (26)] Ended with exit code 0 [2023-12-22 01:54:09,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-22 01:54:09,323 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:09,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:09,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1493493470, now seen corresponding path program 1 times [2023-12-22 01:54:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:09,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823118589] [2023-12-22 01:54:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:09,323 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 [2023-12-22 01:54:09,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:09,325 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-22 01:54:09,326 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 (27)] Waiting until timeout for monitored process [2023-12-22 01:54:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:09,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:54:09,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:09,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:54:09,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:09,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823118589] [2023-12-22 01:54:09,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823118589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:54:09,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:54:09,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:54:09,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805120151] [2023-12-22 01:54:09,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:54:09,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:54:09,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:09,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:54:09,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:54:09,477 INFO L87 Difference]: Start difference. First operand 19260 states and 25958 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:09,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:54:09,693 INFO L93 Difference]: Finished difference Result 28096 states and 37672 transitions. [2023-12-22 01:54:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:54:09,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-22 01:54:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:54:09,707 INFO L225 Difference]: With dead ends: 28096 [2023-12-22 01:54:09,707 INFO L226 Difference]: Without dead ends: 10430 [2023-12-22 01:54:09,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:54:09,719 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 40 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:54:09,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3110 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:54:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2023-12-22 01:54:09,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 10428. [2023-12-22 01:54:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10428 states, 10426 states have (on average 1.3479762133128717) internal successors, (14054), 10427 states have internal predecessors, (14054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10428 states to 10428 states and 14054 transitions. [2023-12-22 01:54:09,944 INFO L78 Accepts]: Start accepts. Automaton has 10428 states and 14054 transitions. Word has length 119 [2023-12-22 01:54:09,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:09,944 INFO L495 AbstractCegarLoop]: Abstraction has 10428 states and 14054 transitions. [2023-12-22 01:54:09,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:09,944 INFO L276 IsEmpty]: Start isEmpty. Operand 10428 states and 14054 transitions. [2023-12-22 01:54:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-22 01:54:09,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:09,946 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:54:09,951 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 (27)] Forceful destruction successful, exit code 0 [2023-12-22 01:54:10,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-22 01:54:10,149 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:10,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:10,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1504758797, now seen corresponding path program 1 times [2023-12-22 01:54:10,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:10,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579089215] [2023-12-22 01:54:10,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:10,150 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 [2023-12-22 01:54:10,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:10,151 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-22 01:54:10,153 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 (28)] Waiting until timeout for monitored process [2023-12-22 01:54:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:10,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:54:10,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:11,146 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:11,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:54:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:11,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:11,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579089215] [2023-12-22 01:54:11,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579089215] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:54:11,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:54:11,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:54:11,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931837770] [2023-12-22 01:54:11,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:54:11,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:54:11,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:11,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:54:11,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:54:11,527 INFO L87 Difference]: Start difference. First operand 10428 states and 14054 transitions. Second operand has 16 states, 16 states have (on average 14.625) internal successors, (234), 16 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:12,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:54:12,892 INFO L93 Difference]: Finished difference Result 26724 states and 35258 transitions. [2023-12-22 01:54:12,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 01:54:12,893 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.625) internal successors, (234), 16 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-22 01:54:12,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:54:12,911 INFO L225 Difference]: With dead ends: 26724 [2023-12-22 01:54:12,911 INFO L226 Difference]: Without dead ends: 17890 [2023-12-22 01:54:12,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 01:54:12,921 INFO L413 NwaCegarLoop]: 1567 mSDtfsCounter, 5080 mSDsluCounter, 10896 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5080 SdHoareTripleChecker+Valid, 12463 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:54:12,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5080 Valid, 12463 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 01:54:12,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17890 states. [2023-12-22 01:54:13,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17890 to 16700. [2023-12-22 01:54:13,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16700 states, 16698 states have (on average 1.320756976883459) internal successors, (22054), 16699 states have internal predecessors, (22054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:13,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16700 states to 16700 states and 22054 transitions. [2023-12-22 01:54:13,377 INFO L78 Accepts]: Start accepts. Automaton has 16700 states and 22054 transitions. Word has length 120 [2023-12-22 01:54:13,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:13,377 INFO L495 AbstractCegarLoop]: Abstraction has 16700 states and 22054 transitions. [2023-12-22 01:54:13,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.625) internal successors, (234), 16 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:13,377 INFO L276 IsEmpty]: Start isEmpty. Operand 16700 states and 22054 transitions. [2023-12-22 01:54:13,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-22 01:54:13,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:13,379 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:54:13,386 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 (28)] Forceful destruction successful, exit code 0 [2023-12-22 01:54:13,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-22 01:54:13,584 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:13,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:13,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2054252837, now seen corresponding path program 1 times [2023-12-22 01:54:13,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:13,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341038835] [2023-12-22 01:54:13,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:13,585 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 [2023-12-22 01:54:13,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:13,586 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-22 01:54:13,587 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 (29)] Waiting until timeout for monitored process [2023-12-22 01:54:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:13,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:54:13,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:54:13,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:54:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:54:13,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:13,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341038835] [2023-12-22 01:54:13,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341038835] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:54:13,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:54:13,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:54:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729162464] [2023-12-22 01:54:13,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:54:13,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 01:54:13,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:13,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 01:54:13,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 01:54:13,989 INFO L87 Difference]: Start difference. First operand 16700 states and 22054 transitions. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:54:15,080 INFO L93 Difference]: Finished difference Result 60534 states and 78027 transitions. [2023-12-22 01:54:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 01:54:15,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-12-22 01:54:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:54:15,127 INFO L225 Difference]: With dead ends: 60534 [2023-12-22 01:54:15,127 INFO L226 Difference]: Without dead ends: 45428 [2023-12-22 01:54:15,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:54:15,137 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1623 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:54:15,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 3406 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:54:15,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45428 states. [2023-12-22 01:54:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45428 to 45264. [2023-12-22 01:54:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45264 states, 45262 states have (on average 1.247315629004463) internal successors, (56456), 45263 states have internal predecessors, (56456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45264 states to 45264 states and 56456 transitions. [2023-12-22 01:54:16,374 INFO L78 Accepts]: Start accepts. Automaton has 45264 states and 56456 transitions. Word has length 122 [2023-12-22 01:54:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:16,374 INFO L495 AbstractCegarLoop]: Abstraction has 45264 states and 56456 transitions. [2023-12-22 01:54:16,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:54:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 45264 states and 56456 transitions. [2023-12-22 01:54:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 01:54:16,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:16,377 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:54:16,380 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 (29)] Forceful destruction successful, exit code 0 [2023-12-22 01:54:16,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-22 01:54:16,581 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:16,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:16,581 INFO L85 PathProgramCache]: Analyzing trace with hash 715072900, now seen corresponding path program 1 times [2023-12-22 01:54:16,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:16,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266976886] [2023-12-22 01:54:16,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:16,582 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 [2023-12-22 01:54:16,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:16,583 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-22 01:54:16,584 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 (30)] Waiting until timeout for monitored process [2023-12-22 01:54:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:16,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:54:16,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:17,223 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-22 01:54:17,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:54:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-22 01:54:17,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:17,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266976886] [2023-12-22 01:54:17,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266976886] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:54:17,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:54:17,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2023-12-22 01:54:17,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879169800] [2023-12-22 01:54:17,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:54:17,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 01:54:17,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:17,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 01:54:17,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 01:54:17,692 INFO L87 Difference]: Start difference. First operand 45264 states and 56456 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:55:37,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:55:37,801 INFO L93 Difference]: Finished difference Result 50597 states and 64996 transitions. [2023-12-22 01:55:37,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:55:37,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-22 01:55:37,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:55:37,848 INFO L225 Difference]: With dead ends: 50597 [2023-12-22 01:55:37,848 INFO L226 Difference]: Without dead ends: 49093 [2023-12-22 01:55:37,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:55:37,857 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 3971 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 4587 mSolverCounterSat, 2553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3971 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 7140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2553 IncrementalHoareTripleChecker+Valid, 4587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:55:37,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3971 Valid, 195 Invalid, 7140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2553 Valid, 4587 Invalid, 0 Unknown, 0 Unchecked, 78.6s Time] [2023-12-22 01:55:37,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49093 states. [2023-12-22 01:55:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49093 to 49019. [2023-12-22 01:55:39,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49019 states, 49017 states have (on average 1.2475875716588123) internal successors, (61153), 49018 states have internal predecessors, (61153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:55:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49019 states to 49019 states and 61153 transitions. [2023-12-22 01:55:39,511 INFO L78 Accepts]: Start accepts. Automaton has 49019 states and 61153 transitions. Word has length 130 [2023-12-22 01:55:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:55:39,511 INFO L495 AbstractCegarLoop]: Abstraction has 49019 states and 61153 transitions. [2023-12-22 01:55:39,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:55:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 49019 states and 61153 transitions. [2023-12-22 01:55:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-22 01:55:39,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:55:39,523 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:55:39,525 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 (30)] Ended with exit code 0 [2023-12-22 01:55:39,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-22 01:55:39,725 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:55:39,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:55:39,726 INFO L85 PathProgramCache]: Analyzing trace with hash 778568851, now seen corresponding path program 1 times [2023-12-22 01:55:39,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:55:39,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292994808] [2023-12-22 01:55:39,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:55:39,726 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 [2023-12-22 01:55:39,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:55:39,727 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-22 01:55:39,729 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 (31)] Waiting until timeout for monitored process [2023-12-22 01:55:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:55:39,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:55:39,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:55:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 61 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:55:41,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:55:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 61 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:55:42,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:55:42,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292994808] [2023-12-22 01:55:42,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292994808] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:55:42,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:55:42,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:55:42,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589465368] [2023-12-22 01:55:42,655 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:55:42,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:55:42,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:55:42,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:55:42,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:55:42,657 INFO L87 Difference]: Start difference. First operand 49019 states and 61153 transitions. Second operand has 26 states, 26 states have (on average 12.76923076923077) internal successors, (332), 26 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:55:52,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:55:52,576 INFO L93 Difference]: Finished difference Result 101953 states and 126108 transitions. [2023-12-22 01:55:52,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-22 01:55:52,576 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.76923076923077) internal successors, (332), 26 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2023-12-22 01:55:52,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:55:52,665 INFO L225 Difference]: With dead ends: 101953 [2023-12-22 01:55:52,665 INFO L226 Difference]: Without dead ends: 81375 [2023-12-22 01:55:52,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1418 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1033, Invalid=5129, Unknown=0, NotChecked=0, Total=6162 [2023-12-22 01:55:52,680 INFO L413 NwaCegarLoop]: 1707 mSDtfsCounter, 2372 mSDsluCounter, 24776 mSDsCounter, 0 mSdLazyCounter, 3406 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2372 SdHoareTripleChecker+Valid, 26483 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:55:52,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2372 Valid, 26483 Invalid, 3428 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 3406 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-22 01:55:52,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81375 states. [2023-12-22 01:55:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81375 to 36027. [2023-12-22 01:55:54,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36027 states, 36025 states have (on average 1.250270645385149) internal successors, (45041), 36026 states have internal predecessors, (45041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:55:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36027 states to 36027 states and 45041 transitions. [2023-12-22 01:55:54,573 INFO L78 Accepts]: Start accepts. Automaton has 36027 states and 45041 transitions. Word has length 181 [2023-12-22 01:55:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:55:54,574 INFO L495 AbstractCegarLoop]: Abstraction has 36027 states and 45041 transitions. [2023-12-22 01:55:54,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.76923076923077) internal successors, (332), 26 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:55:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 36027 states and 45041 transitions. [2023-12-22 01:55:54,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-22 01:55:54,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:55:54,580 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:55:54,583 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 (31)] Ended with exit code 0 [2023-12-22 01:55:54,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-22 01:55:54,783 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:55:54,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:55:54,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2047956786, now seen corresponding path program 1 times [2023-12-22 01:55:54,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:55:54,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32025719] [2023-12-22 01:55:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:55:54,793 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 [2023-12-22 01:55:54,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:55:54,794 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-22 01:55:54,796 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 (32)] Waiting until timeout for monitored process [2023-12-22 01:55:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:55:55,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:55:55,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:55:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 54 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:55:56,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:55:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 54 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:55:57,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:55:57,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32025719] [2023-12-22 01:55:57,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32025719] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:55:57,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:55:57,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:55:57,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367356518] [2023-12-22 01:55:57,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:55:57,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:55:57,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:55:57,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:55:57,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:55:57,192 INFO L87 Difference]: Start difference. First operand 36027 states and 45041 transitions. Second operand has 26 states, 26 states have (on average 12.923076923076923) internal successors, (336), 25 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:56:00,191 INFO L93 Difference]: Finished difference Result 64129 states and 79980 transitions. [2023-12-22 01:56:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 01:56:00,192 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.923076923076923) internal successors, (336), 25 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2023-12-22 01:56:00,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:56:00,229 INFO L225 Difference]: With dead ends: 64129 [2023-12-22 01:56:00,229 INFO L226 Difference]: Without dead ends: 36029 [2023-12-22 01:56:00,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 01:56:00,237 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 18206 mSDsluCounter, 8090 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18206 SdHoareTripleChecker+Valid, 9654 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:56:00,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18206 Valid, 9654 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:56:00,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36029 states. [2023-12-22 01:56:01,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36029 to 36027. [2023-12-22 01:56:01,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36027 states, 36025 states have (on average 1.2404996530187369) internal successors, (44689), 36026 states have internal predecessors, (44689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36027 states to 36027 states and 44689 transitions. [2023-12-22 01:56:01,632 INFO L78 Accepts]: Start accepts. Automaton has 36027 states and 44689 transitions. Word has length 182 [2023-12-22 01:56:01,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:56:01,633 INFO L495 AbstractCegarLoop]: Abstraction has 36027 states and 44689 transitions. [2023-12-22 01:56:01,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.923076923076923) internal successors, (336), 25 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 36027 states and 44689 transitions. [2023-12-22 01:56:01,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-22 01:56:01,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:56:01,641 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:56:01,647 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 (32)] Forceful destruction successful, exit code 0 [2023-12-22 01:56:01,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-22 01:56:01,845 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:56:01,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:56:01,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2053084722, now seen corresponding path program 1 times [2023-12-22 01:56:01,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:56:01,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537912703] [2023-12-22 01:56:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:56:01,846 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 [2023-12-22 01:56:01,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:56:01,847 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-22 01:56:01,849 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 (33)] Waiting until timeout for monitored process [2023-12-22 01:56:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:56:02,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:56:02,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:56:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 53 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:56:03,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:56:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 53 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:56:04,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:56:04,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537912703] [2023-12-22 01:56:04,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537912703] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:56:04,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:56:04,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:56:04,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073243055] [2023-12-22 01:56:04,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:56:04,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:56:04,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:56:04,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:56:04,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:56:04,028 INFO L87 Difference]: Start difference. First operand 36027 states and 44689 transitions. Second operand has 26 states, 26 states have (on average 13.0) internal successors, (338), 26 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:13,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:56:13,741 INFO L93 Difference]: Finished difference Result 96305 states and 117526 transitions. [2023-12-22 01:56:13,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:56:13,742 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.0) internal successors, (338), 26 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2023-12-22 01:56:13,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:56:13,836 INFO L225 Difference]: With dead ends: 96305 [2023-12-22 01:56:13,836 INFO L226 Difference]: Without dead ends: 84303 [2023-12-22 01:56:13,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:56:13,849 INFO L413 NwaCegarLoop]: 1636 mSDtfsCounter, 5560 mSDsluCounter, 22725 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5560 SdHoareTripleChecker+Valid, 24361 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:56:13,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5560 Valid, 24361 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 01:56:13,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84303 states. [2023-12-22 01:56:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84303 to 70585. [2023-12-22 01:56:17,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70585 states, 70583 states have (on average 1.2167235736650468) internal successors, (85880), 70584 states have internal predecessors, (85880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:17,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70585 states to 70585 states and 85880 transitions. [2023-12-22 01:56:17,794 INFO L78 Accepts]: Start accepts. Automaton has 70585 states and 85880 transitions. Word has length 182 [2023-12-22 01:56:17,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:56:17,794 INFO L495 AbstractCegarLoop]: Abstraction has 70585 states and 85880 transitions. [2023-12-22 01:56:17,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.0) internal successors, (338), 26 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:17,794 INFO L276 IsEmpty]: Start isEmpty. Operand 70585 states and 85880 transitions. [2023-12-22 01:56:17,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-22 01:56:17,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:56:17,804 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:56:17,810 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 (33)] Forceful destruction successful, exit code 0 [2023-12-22 01:56:18,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-22 01:56:18,008 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:56:18,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:56:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1364122115, now seen corresponding path program 1 times [2023-12-22 01:56:18,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:56:18,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697804577] [2023-12-22 01:56:18,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:56:18,009 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 [2023-12-22 01:56:18,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:56:18,010 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-22 01:56:18,025 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 (34)] Waiting until timeout for monitored process [2023-12-22 01:56:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:56:18,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:56:18,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:56:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 46 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:56:19,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:56:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 46 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:56:20,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:56:20,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697804577] [2023-12-22 01:56:20,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697804577] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:56:20,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:56:20,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:56:20,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895627209] [2023-12-22 01:56:20,247 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:56:20,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:56:20,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:56:20,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:56:20,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:56:20,248 INFO L87 Difference]: Start difference. First operand 70585 states and 85880 transitions. Second operand has 26 states, 26 states have (on average 13.153846153846153) internal successors, (342), 25 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:34,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:56:34,920 INFO L93 Difference]: Finished difference Result 300487 states and 369284 transitions. [2023-12-22 01:56:34,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 01:56:34,921 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.153846153846153) internal successors, (342), 25 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2023-12-22 01:56:34,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:56:35,305 INFO L225 Difference]: With dead ends: 300487 [2023-12-22 01:56:35,305 INFO L226 Difference]: Without dead ends: 270703 [2023-12-22 01:56:35,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2687 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 01:56:35,473 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 18919 mSDsluCounter, 8650 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18919 SdHoareTripleChecker+Valid, 10214 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:56:35,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18919 Valid, 10214 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 01:56:35,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270703 states. [2023-12-22 01:56:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270703 to 70585. [2023-12-22 01:56:41,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70585 states, 70583 states have (on average 1.213209979740164) internal successors, (85632), 70584 states have internal predecessors, (85632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70585 states to 70585 states and 85632 transitions. [2023-12-22 01:56:41,464 INFO L78 Accepts]: Start accepts. Automaton has 70585 states and 85632 transitions. Word has length 183 [2023-12-22 01:56:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:56:41,464 INFO L495 AbstractCegarLoop]: Abstraction has 70585 states and 85632 transitions. [2023-12-22 01:56:41,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.153846153846153) internal successors, (342), 25 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 70585 states and 85632 transitions. [2023-12-22 01:56:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-22 01:56:41,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:56:41,475 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:56:41,478 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 (34)] Ended with exit code 0 [2023-12-22 01:56:41,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-22 01:56:41,678 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:56:41,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:56:41,678 INFO L85 PathProgramCache]: Analyzing trace with hash 396600835, now seen corresponding path program 1 times [2023-12-22 01:56:41,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:56:41,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527137201] [2023-12-22 01:56:41,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:56:41,679 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 [2023-12-22 01:56:41,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:56:41,680 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-22 01:56:41,681 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 (35)] Waiting until timeout for monitored process [2023-12-22 01:56:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:56:41,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:56:41,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:56:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 45 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:56:43,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:56:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 45 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:56:44,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:56:44,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527137201] [2023-12-22 01:56:44,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527137201] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:56:44,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:56:44,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:56:44,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277243556] [2023-12-22 01:56:44,106 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:56:44,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:56:44,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:56:44,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:56:44,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:56:44,108 INFO L87 Difference]: Start difference. First operand 70585 states and 85632 transitions. Second operand has 26 states, 26 states have (on average 13.23076923076923) internal successors, (344), 26 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:56:53,202 INFO L93 Difference]: Finished difference Result 125137 states and 152070 transitions. [2023-12-22 01:56:53,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-22 01:56:53,203 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.23076923076923) internal successors, (344), 26 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2023-12-22 01:56:53,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:56:53,349 INFO L225 Difference]: With dead ends: 125137 [2023-12-22 01:56:53,349 INFO L226 Difference]: Without dead ends: 111471 [2023-12-22 01:56:53,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2023-12-22 01:56:53,377 INFO L413 NwaCegarLoop]: 1615 mSDtfsCounter, 6485 mSDsluCounter, 22363 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6485 SdHoareTripleChecker+Valid, 23978 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:56:53,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6485 Valid, 23978 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 01:56:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111471 states. [2023-12-22 01:56:58,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111471 to 67821. [2023-12-22 01:56:58,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67821 states, 67819 states have (on average 1.2161783570975686) internal successors, (82480), 67820 states have internal predecessors, (82480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67821 states to 67821 states and 82480 transitions. [2023-12-22 01:56:58,816 INFO L78 Accepts]: Start accepts. Automaton has 67821 states and 82480 transitions. Word has length 183 [2023-12-22 01:56:58,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:56:58,816 INFO L495 AbstractCegarLoop]: Abstraction has 67821 states and 82480 transitions. [2023-12-22 01:56:58,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.23076923076923) internal successors, (344), 26 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:56:58,816 INFO L276 IsEmpty]: Start isEmpty. Operand 67821 states and 82480 transitions. [2023-12-22 01:56:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-22 01:56:58,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:56:58,827 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:56:58,830 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 (35)] Ended with exit code 0 [2023-12-22 01:56:59,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 [2023-12-22 01:56:59,030 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:56:59,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:56:59,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1779012382, now seen corresponding path program 1 times [2023-12-22 01:56:59,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:56:59,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197436907] [2023-12-22 01:56:59,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:56:59,032 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 [2023-12-22 01:56:59,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:56:59,033 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-22 01:56:59,122 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 (36)] Waiting until timeout for monitored process [2023-12-22 01:56:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:56:59,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:56:59,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:57:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 38 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:57:00,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:57:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 38 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:57:01,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:57:01,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197436907] [2023-12-22 01:57:01,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197436907] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:57:01,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:57:01,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:57:01,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958189326] [2023-12-22 01:57:01,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:57:01,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:57:01,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:57:01,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:57:01,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:57:01,434 INFO L87 Difference]: Start difference. First operand 67821 states and 82480 transitions. Second operand has 26 states, 26 states have (on average 13.384615384615385) internal successors, (348), 25 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:07,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:57:07,541 INFO L93 Difference]: Finished difference Result 103999 states and 126879 transitions. [2023-12-22 01:57:07,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:57:07,546 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.384615384615385) internal successors, (348), 25 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2023-12-22 01:57:07,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:57:07,638 INFO L225 Difference]: With dead ends: 103999 [2023-12-22 01:57:07,638 INFO L226 Difference]: Without dead ends: 75217 [2023-12-22 01:57:07,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:57:07,662 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 16839 mSDsluCounter, 8185 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16839 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:57:07,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16839 Valid, 9749 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 01:57:07,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75217 states. [2023-12-22 01:57:12,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75217 to 67821. [2023-12-22 01:57:12,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67821 states, 67819 states have (on average 1.2125215647532401) internal successors, (82232), 67820 states have internal predecessors, (82232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:12,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67821 states to 67821 states and 82232 transitions. [2023-12-22 01:57:12,527 INFO L78 Accepts]: Start accepts. Automaton has 67821 states and 82232 transitions. Word has length 184 [2023-12-22 01:57:12,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:57:12,528 INFO L495 AbstractCegarLoop]: Abstraction has 67821 states and 82232 transitions. [2023-12-22 01:57:12,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.384615384615385) internal successors, (348), 25 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 67821 states and 82232 transitions. [2023-12-22 01:57:12,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-22 01:57:12,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:57:12,535 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:57:12,542 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 (36)] Forceful destruction successful, exit code 0 [2023-12-22 01:57:12,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 [2023-12-22 01:57:12,740 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:57:12,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:57:12,740 INFO L85 PathProgramCache]: Analyzing trace with hash 497042914, now seen corresponding path program 1 times [2023-12-22 01:57:12,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:57:12,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814103504] [2023-12-22 01:57:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:57:12,741 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 [2023-12-22 01:57:12,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:57:12,742 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-22 01:57:12,761 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 (37)] Waiting until timeout for monitored process [2023-12-22 01:57:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:57:12,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:57:12,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:57:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 37 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:57:14,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:57:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 37 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:57:15,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:57:15,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814103504] [2023-12-22 01:57:15,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814103504] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:57:15,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:57:15,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:57:15,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294632029] [2023-12-22 01:57:15,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:57:15,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:57:15,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:57:15,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:57:15,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:57:15,466 INFO L87 Difference]: Start difference. First operand 67821 states and 82232 transitions. Second operand has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 26 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:57:31,321 INFO L93 Difference]: Finished difference Result 168181 states and 203026 transitions. [2023-12-22 01:57:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:57:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 26 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2023-12-22 01:57:31,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:57:31,530 INFO L225 Difference]: With dead ends: 168181 [2023-12-22 01:57:31,531 INFO L226 Difference]: Without dead ends: 154803 [2023-12-22 01:57:31,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:57:31,558 INFO L413 NwaCegarLoop]: 1711 mSDtfsCounter, 4074 mSDsluCounter, 21514 mSDsCounter, 0 mSdLazyCounter, 2940 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 23225 SdHoareTripleChecker+Invalid, 2956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:57:31,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4074 Valid, 23225 Invalid, 2956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2940 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-22 01:57:31,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154803 states. [2023-12-22 01:57:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154803 to 80447. [2023-12-22 01:57:38,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80447 states, 80445 states have (on average 1.2098949592889552) internal successors, (97330), 80446 states have internal predecessors, (97330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80447 states to 80447 states and 97330 transitions. [2023-12-22 01:57:38,441 INFO L78 Accepts]: Start accepts. Automaton has 80447 states and 97330 transitions. Word has length 184 [2023-12-22 01:57:38,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:57:38,441 INFO L495 AbstractCegarLoop]: Abstraction has 80447 states and 97330 transitions. [2023-12-22 01:57:38,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 26 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:38,441 INFO L276 IsEmpty]: Start isEmpty. Operand 80447 states and 97330 transitions. [2023-12-22 01:57:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-22 01:57:38,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:57:38,448 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:57:38,452 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 (37)] Ended with exit code 0 [2023-12-22 01:57:38,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 [2023-12-22 01:57:38,651 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:57:38,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:57:38,651 INFO L85 PathProgramCache]: Analyzing trace with hash 281164147, now seen corresponding path program 1 times [2023-12-22 01:57:38,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:57:38,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398025779] [2023-12-22 01:57:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:57:38,652 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 [2023-12-22 01:57:38,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:57:38,653 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-22 01:57:38,655 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 (38)] Waiting until timeout for monitored process [2023-12-22 01:57:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:57:38,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:57:38,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:57:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 30 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:57:40,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:57:40,532 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 30 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:57:40,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:57:40,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398025779] [2023-12-22 01:57:40,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398025779] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:57:40,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:57:40,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:57:40,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248597467] [2023-12-22 01:57:40,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:57:40,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:57:40,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:57:40,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:57:40,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:57:40,536 INFO L87 Difference]: Start difference. First operand 80447 states and 97330 transitions. Second operand has 26 states, 26 states have (on average 13.615384615384615) internal successors, (354), 25 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:48,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:57:48,634 INFO L93 Difference]: Finished difference Result 120755 states and 146496 transitions. [2023-12-22 01:57:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:57:48,635 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.615384615384615) internal successors, (354), 25 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2023-12-22 01:57:48,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:57:48,742 INFO L225 Difference]: With dead ends: 120755 [2023-12-22 01:57:48,742 INFO L226 Difference]: Without dead ends: 86643 [2023-12-22 01:57:48,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:57:48,770 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 17151 mSDsluCounter, 8263 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17151 SdHoareTripleChecker+Valid, 9827 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:57:48,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17151 Valid, 9827 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:57:48,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86643 states. [2023-12-22 01:57:55,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86643 to 80447. [2023-12-22 01:57:55,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80447 states, 80445 states have (on average 1.206041394741749) internal successors, (97020), 80446 states have internal predecessors, (97020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80447 states to 80447 states and 97020 transitions. [2023-12-22 01:57:55,691 INFO L78 Accepts]: Start accepts. Automaton has 80447 states and 97020 transitions. Word has length 185 [2023-12-22 01:57:55,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:57:55,691 INFO L495 AbstractCegarLoop]: Abstraction has 80447 states and 97020 transitions. [2023-12-22 01:57:55,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.615384615384615) internal successors, (354), 25 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:57:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 80447 states and 97020 transitions. [2023-12-22 01:57:55,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-22 01:57:55,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:57:55,698 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:57:55,702 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 (38)] Ended with exit code 0 [2023-12-22 01:57:55,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 [2023-12-22 01:57:55,902 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:57:55,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:57:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1078959987, now seen corresponding path program 1 times [2023-12-22 01:57:55,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:57:55,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81093840] [2023-12-22 01:57:55,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:57:55,903 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 [2023-12-22 01:57:55,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:57:55,904 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-22 01:57:55,906 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 (39)] Waiting until timeout for monitored process [2023-12-22 01:57:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:57:56,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:57:56,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:57:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 29 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:57:57,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:57:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 29 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:57:58,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:57:58,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81093840] [2023-12-22 01:57:58,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81093840] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:57:58,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:57:58,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:57:58,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062749918] [2023-12-22 01:57:58,376 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:57:58,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:57:58,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:57:58,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:57:58,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:57:58,378 INFO L87 Difference]: Start difference. First operand 80447 states and 97020 transitions. Second operand has 26 states, 26 states have (on average 13.692307692307692) internal successors, (356), 26 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:58:18,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:58:18,261 INFO L93 Difference]: Finished difference Result 207867 states and 249357 transitions. [2023-12-22 01:58:18,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:58:18,262 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.692307692307692) internal successors, (356), 26 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2023-12-22 01:58:18,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:58:18,498 INFO L225 Difference]: With dead ends: 207867 [2023-12-22 01:58:18,498 INFO L226 Difference]: Without dead ends: 191529 [2023-12-22 01:58:18,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:58:18,549 INFO L413 NwaCegarLoop]: 1699 mSDtfsCounter, 4079 mSDsluCounter, 21494 mSDsCounter, 0 mSdLazyCounter, 2891 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 23193 SdHoareTripleChecker+Invalid, 2910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:58:18,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 23193 Invalid, 2910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2891 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-22 01:58:18,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191529 states. [2023-12-22 01:58:29,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191529 to 97837. [2023-12-22 01:58:29,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97837 states, 97835 states have (on average 1.2033219195584401) internal successors, (117727), 97836 states have internal predecessors, (117727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:58:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97837 states to 97837 states and 117727 transitions. [2023-12-22 01:58:29,313 INFO L78 Accepts]: Start accepts. Automaton has 97837 states and 117727 transitions. Word has length 185 [2023-12-22 01:58:29,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:58:29,313 INFO L495 AbstractCegarLoop]: Abstraction has 97837 states and 117727 transitions. [2023-12-22 01:58:29,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.692307692307692) internal successors, (356), 26 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:58:29,313 INFO L276 IsEmpty]: Start isEmpty. Operand 97837 states and 117727 transitions. [2023-12-22 01:58:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-22 01:58:29,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:58:29,320 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:58:29,324 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 (39)] Ended with exit code 0 [2023-12-22 01:58:29,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 [2023-12-22 01:58:29,524 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:58:29,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:58:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1906395794, now seen corresponding path program 1 times [2023-12-22 01:58:29,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:58:29,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68245100] [2023-12-22 01:58:29,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:58:29,525 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 [2023-12-22 01:58:29,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:58:29,526 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-22 01:58:29,529 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 (40)] Waiting until timeout for monitored process [2023-12-22 01:58:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:58:29,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:58:29,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:58:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 22 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:58:31,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:58:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 22 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:58:31,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:58:31,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68245100] [2023-12-22 01:58:31,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68245100] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:58:31,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:58:31,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:58:31,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934586828] [2023-12-22 01:58:31,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:58:31,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:58:31,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:58:31,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:58:31,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:58:31,811 INFO L87 Difference]: Start difference. First operand 97837 states and 117727 transitions. Second operand has 26 states, 26 states have (on average 13.846153846153847) internal successors, (360), 25 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:58:42,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:58:42,328 INFO L93 Difference]: Finished difference Result 142790 states and 172251 transitions. [2023-12-22 01:58:42,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:58:42,328 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.846153846153847) internal successors, (360), 25 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2023-12-22 01:58:42,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:58:42,455 INFO L225 Difference]: With dead ends: 142790 [2023-12-22 01:58:42,455 INFO L226 Difference]: Without dead ends: 102081 [2023-12-22 01:58:42,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:58:42,487 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 18370 mSDsluCounter, 6546 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18370 SdHoareTripleChecker+Valid, 8110 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:58:42,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18370 Valid, 8110 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:58:42,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102081 states. [2023-12-22 01:58:52,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102081 to 97837. [2023-12-22 01:58:52,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97837 states, 97835 states have (on average 1.1992027393059743) internal successors, (117324), 97836 states have internal predecessors, (117324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:58:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97837 states to 97837 states and 117324 transitions. [2023-12-22 01:58:52,522 INFO L78 Accepts]: Start accepts. Automaton has 97837 states and 117324 transitions. Word has length 186 [2023-12-22 01:58:52,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:58:52,522 INFO L495 AbstractCegarLoop]: Abstraction has 97837 states and 117324 transitions. [2023-12-22 01:58:52,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.846153846153847) internal successors, (360), 25 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:58:52,523 INFO L276 IsEmpty]: Start isEmpty. Operand 97837 states and 117324 transitions. [2023-12-22 01:58:52,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-22 01:58:52,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:58:52,529 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:58:52,533 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 (40)] Ended with exit code 0 [2023-12-22 01:58:52,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /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 [2023-12-22 01:58:52,733 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:58:52,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:58:52,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1159676526, now seen corresponding path program 1 times [2023-12-22 01:58:52,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:58:52,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168744720] [2023-12-22 01:58:52,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:58:52,734 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 [2023-12-22 01:58:52,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:58:52,735 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-22 01:58:52,736 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 (41)] Waiting until timeout for monitored process [2023-12-22 01:58:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:58:52,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:58:52,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:58:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 21 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:58:54,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:58:55,989 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 21 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:58:55,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:58:55,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168744720] [2023-12-22 01:58:55,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168744720] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:58:55,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:58:55,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:58:55,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465100241] [2023-12-22 01:58:55,990 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:58:55,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:58:55,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:58:55,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:58:55,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:58:55,991 INFO L87 Difference]: Start difference. First operand 97837 states and 117324 transitions. Second operand has 26 states, 26 states have (on average 13.923076923076923) internal successors, (362), 26 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:59:22,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:59:22,675 INFO L93 Difference]: Finished difference Result 244616 states and 291745 transitions. [2023-12-22 01:59:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:59:22,675 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.923076923076923) internal successors, (362), 26 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2023-12-22 01:59:22,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:59:23,001 INFO L225 Difference]: With dead ends: 244616 [2023-12-22 01:59:23,001 INFO L226 Difference]: Without dead ends: 224414 [2023-12-22 01:59:23,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:59:23,053 INFO L413 NwaCegarLoop]: 1686 mSDtfsCounter, 3994 mSDsluCounter, 22821 mSDsCounter, 0 mSdLazyCounter, 2775 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3994 SdHoareTripleChecker+Valid, 24507 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:59:23,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3994 Valid, 24507 Invalid, 2795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2775 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-22 01:59:23,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224414 states. [2023-12-22 01:59:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224414 to 117335. [2023-12-22 01:59:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117335 states, 117333 states have (on average 1.1964323762283415) internal successors, (140381), 117334 states have internal predecessors, (140381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:59:38,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117335 states to 117335 states and 140381 transitions. [2023-12-22 01:59:38,685 INFO L78 Accepts]: Start accepts. Automaton has 117335 states and 140381 transitions. Word has length 186 [2023-12-22 01:59:38,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:59:38,686 INFO L495 AbstractCegarLoop]: Abstraction has 117335 states and 140381 transitions. [2023-12-22 01:59:38,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.923076923076923) internal successors, (362), 26 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:59:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 117335 states and 140381 transitions. [2023-12-22 01:59:38,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 01:59:38,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:59:38,693 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:59:38,699 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 (41)] Forceful destruction successful, exit code 0 [2023-12-22 01:59:38,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /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 [2023-12-22 01:59:38,897 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:59:38,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:59:38,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1175850781, now seen corresponding path program 1 times [2023-12-22 01:59:38,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:59:38,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784585858] [2023-12-22 01:59:38,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:59:38,898 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 [2023-12-22 01:59:38,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:59:38,902 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-22 01:59:38,903 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 (42)] Waiting until timeout for monitored process [2023-12-22 01:59:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:59:39,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:59:39,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:59:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 13 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:59:41,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:59:41,929 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 13 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:59:41,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:59:41,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784585858] [2023-12-22 01:59:41,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784585858] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:59:41,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:59:41,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:59:41,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123583657] [2023-12-22 01:59:41,930 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:59:41,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:59:41,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:59:41,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:59:41,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:59:41,931 INFO L87 Difference]: Start difference. First operand 117335 states and 140381 transitions. Second operand has 26 states, 26 states have (on average 14.153846153846153) internal successors, (368), 26 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:00:17,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:00:17,359 INFO L93 Difference]: Finished difference Result 314183 states and 372955 transitions. [2023-12-22 02:00:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 02:00:17,360 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 14.153846153846153) internal successors, (368), 26 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2023-12-22 02:00:17,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:00:17,696 INFO L225 Difference]: With dead ends: 314183 [2023-12-22 02:00:17,696 INFO L226 Difference]: Without dead ends: 253229 [2023-12-22 02:00:17,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 02:00:17,746 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 3955 mSDsluCounter, 24317 mSDsCounter, 0 mSdLazyCounter, 2816 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3955 SdHoareTripleChecker+Valid, 25990 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:00:17,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3955 Valid, 25990 Invalid, 2836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2816 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-22 02:00:18,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253229 states. [2023-12-22 02:00:46,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253229 to 227196. [2023-12-22 02:00:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227196 states, 227194 states have (on average 1.1808146341892831) internal successors, (268274), 227195 states have internal predecessors, (268274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:00:46,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227196 states to 227196 states and 268274 transitions. [2023-12-22 02:00:46,965 INFO L78 Accepts]: Start accepts. Automaton has 227196 states and 268274 transitions. Word has length 187 [2023-12-22 02:00:46,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:00:46,965 INFO L495 AbstractCegarLoop]: Abstraction has 227196 states and 268274 transitions. [2023-12-22 02:00:46,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 14.153846153846153) internal successors, (368), 26 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:00:46,965 INFO L276 IsEmpty]: Start isEmpty. Operand 227196 states and 268274 transitions. [2023-12-22 02:00:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-22 02:00:47,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:00:47,077 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:00:47,081 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 (42)] Forceful destruction successful, exit code 0 [2023-12-22 02:00:47,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /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 [2023-12-22 02:00:47,283 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:00:47,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:00:47,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1724334568, now seen corresponding path program 1 times [2023-12-22 02:00:47,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:00:47,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800402021] [2023-12-22 02:00:47,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:00:47,284 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 [2023-12-22 02:00:47,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:00:47,285 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-22 02:00:47,286 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 (43)] Waiting until timeout for monitored process [2023-12-22 02:00:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:00:47,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 02:00:47,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:00:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 100 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:00:50,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:00:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 100 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:00:51,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:00:51,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800402021] [2023-12-22 02:00:51,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800402021] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:00:51,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:00:51,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 02:00:51,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105737519] [2023-12-22 02:00:51,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:00:51,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 02:00:51,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:00:51,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 02:00:51,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 02:00:51,646 INFO L87 Difference]: Start difference. First operand 227196 states and 268274 transitions. Second operand has 36 states, 36 states have (on average 13.222222222222221) internal successors, (476), 36 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:01:45,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:01:45,590 INFO L93 Difference]: Finished difference Result 354970 states and 419376 transitions. [2023-12-22 02:01:45,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2023-12-22 02:01:45,591 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 13.222222222222221) internal successors, (476), 36 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2023-12-22 02:01:45,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:01:46,128 INFO L225 Difference]: With dead ends: 354970 [2023-12-22 02:01:46,129 INFO L226 Difference]: Without dead ends: 313444 [2023-12-22 02:01:46,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5828 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=2747, Invalid=18133, Unknown=0, NotChecked=0, Total=20880 [2023-12-22 02:01:46,186 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 6175 mSDsluCounter, 30263 mSDsCounter, 0 mSdLazyCounter, 6658 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6175 SdHoareTripleChecker+Valid, 32134 SdHoareTripleChecker+Invalid, 6694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 6658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:01:46,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6175 Valid, 32134 Invalid, 6694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 6658 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-22 02:01:46,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313444 states. [2023-12-22 02:02:05,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313444 to 127102. [2023-12-22 02:02:05,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127102 states, 127100 states have (on average 1.190936270653029) internal successors, (151368), 127101 states have internal predecessors, (151368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:02:05,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127102 states to 127102 states and 151368 transitions. [2023-12-22 02:02:05,802 INFO L78 Accepts]: Start accepts. Automaton has 127102 states and 151368 transitions. Word has length 253 [2023-12-22 02:02:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:02:05,802 INFO L495 AbstractCegarLoop]: Abstraction has 127102 states and 151368 transitions. [2023-12-22 02:02:05,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 13.222222222222221) internal successors, (476), 36 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:02:05,802 INFO L276 IsEmpty]: Start isEmpty. Operand 127102 states and 151368 transitions. [2023-12-22 02:02:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-22 02:02:05,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:02:05,841 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:02:05,846 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 (43)] Ended with exit code 0 [2023-12-22 02:02:06,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /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 [2023-12-22 02:02:06,049 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:02:06,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:02:06,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1845603096, now seen corresponding path program 2 times [2023-12-22 02:02:06,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:02:06,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296399177] [2023-12-22 02:02:06,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:02:06,059 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 [2023-12-22 02:02:06,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:02:06,061 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-22 02:02:06,093 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 (44)] Waiting until timeout for monitored process [2023-12-22 02:02:06,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 02:02:06,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:02:06,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:02:06,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:02:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2023-12-22 02:02:10,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:02:10,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:02:10,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296399177] [2023-12-22 02:02:10,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296399177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:02:10,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:02:10,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-22 02:02:10,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166574930] [2023-12-22 02:02:10,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:02:10,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 02:02:10,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:02:10,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 02:02:10,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-22 02:02:10,075 INFO L87 Difference]: Start difference. First operand 127102 states and 151368 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:02:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:02:35,187 INFO L93 Difference]: Finished difference Result 198645 states and 238954 transitions. [2023-12-22 02:02:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 02:02:35,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2023-12-22 02:02:35,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:02:35,422 INFO L225 Difference]: With dead ends: 198645 [2023-12-22 02:02:35,422 INFO L226 Difference]: Without dead ends: 187163 [2023-12-22 02:02:35,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-22 02:02:35,446 INFO L413 NwaCegarLoop]: 1649 mSDtfsCounter, 6587 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6587 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:02:35,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6587 Valid, 3680 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:02:35,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187163 states. [2023-12-22 02:02:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187163 to 146780. [2023-12-22 02:02:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146780 states, 146778 states have (on average 1.1867718595429833) internal successors, (174192), 146779 states have internal predecessors, (174192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:02:58,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146780 states to 146780 states and 174192 transitions. [2023-12-22 02:02:58,468 INFO L78 Accepts]: Start accepts. Automaton has 146780 states and 174192 transitions. Word has length 253 [2023-12-22 02:02:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:02:58,469 INFO L495 AbstractCegarLoop]: Abstraction has 146780 states and 174192 transitions. [2023-12-22 02:02:58,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:02:58,470 INFO L276 IsEmpty]: Start isEmpty. Operand 146780 states and 174192 transitions. [2023-12-22 02:02:58,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-22 02:02:58,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:02:58,509 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:02:58,513 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 (44)] Forceful destruction successful, exit code 0 [2023-12-22 02:02:58,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /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 [2023-12-22 02:02:58,713 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:02:58,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:02:58,713 INFO L85 PathProgramCache]: Analyzing trace with hash -956710004, now seen corresponding path program 1 times [2023-12-22 02:02:58,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:02:58,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894090] [2023-12-22 02:02:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:02:58,714 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 [2023-12-22 02:02:58,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:02:58,716 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2023-12-22 02:02:58,717 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 (45)] Waiting until timeout for monitored process [2023-12-22 02:02:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:02:58,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 02:02:58,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:03:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 52 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:03:01,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:03:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 52 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:03:03,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:03:03,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894090] [2023-12-22 02:03:03,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894090] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:03:03,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:03:03,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 02:03:03,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888537810] [2023-12-22 02:03:03,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:03:03,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 02:03:03,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:03:03,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 02:03:03,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 02:03:03,087 INFO L87 Difference]: Start difference. First operand 146780 states and 174192 transitions. Second operand has 36 states, 36 states have (on average 13.63888888888889) internal successors, (491), 36 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:03:46,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:03:46,413 INFO L93 Difference]: Finished difference Result 200859 states and 238246 transitions. [2023-12-22 02:03:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 02:03:46,413 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 13.63888888888889) internal successors, (491), 36 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2023-12-22 02:03:46,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:03:46,791 INFO L225 Difference]: With dead ends: 200859 [2023-12-22 02:03:46,791 INFO L226 Difference]: Without dead ends: 187820 [2023-12-22 02:03:46,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4421 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 02:03:46,844 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 6096 mSDsluCounter, 35111 mSDsCounter, 0 mSdLazyCounter, 7431 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6096 SdHoareTripleChecker+Valid, 36957 SdHoareTripleChecker+Invalid, 7455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 7431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:03:46,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6096 Valid, 36957 Invalid, 7455 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 7431 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-12-22 02:03:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187820 states. [2023-12-22 02:04:00,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187820 to 81033. [2023-12-22 02:04:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81033 states, 81031 states have (on average 1.1930989374436944) internal successors, (96678), 81032 states have internal predecessors, (96678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:04:00,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81033 states to 81033 states and 96678 transitions. [2023-12-22 02:04:00,768 INFO L78 Accepts]: Start accepts. Automaton has 81033 states and 96678 transitions. Word has length 253 [2023-12-22 02:04:00,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:04:00,768 INFO L495 AbstractCegarLoop]: Abstraction has 81033 states and 96678 transitions. [2023-12-22 02:04:00,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 13.63888888888889) internal successors, (491), 36 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:04:00,769 INFO L276 IsEmpty]: Start isEmpty. Operand 81033 states and 96678 transitions. [2023-12-22 02:04:00,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-22 02:04:00,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:04:00,791 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:04:00,796 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 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:04:00,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /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 [2023-12-22 02:04:00,998 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:04:00,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:04:00,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1137564520, now seen corresponding path program 1 times [2023-12-22 02:04:00,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:04:00,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619095922] [2023-12-22 02:04:00,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:04:00,999 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 [2023-12-22 02:04:00,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:04:01,000 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-12-22 02:04:01,002 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 (46)] Waiting until timeout for monitored process [2023-12-22 02:04:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:04:01,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 02:04:01,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:04:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 68 proven. 309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:04:04,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:04:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 68 proven. 309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:04:05,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:04:05,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619095922] [2023-12-22 02:04:05,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619095922] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:04:05,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:04:05,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 02:04:05,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126659950] [2023-12-22 02:04:05,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:04:05,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 02:04:05,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:04:05,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 02:04:05,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 02:04:05,557 INFO L87 Difference]: Start difference. First operand 81033 states and 96678 transitions. Second operand has 36 states, 36 states have (on average 13.5) internal successors, (486), 36 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:04:33,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:04:33,047 INFO L93 Difference]: Finished difference Result 129667 states and 154334 transitions. [2023-12-22 02:04:33,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-22 02:04:33,048 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 13.5) internal successors, (486), 36 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2023-12-22 02:04:33,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:04:33,201 INFO L225 Difference]: With dead ends: 129667 [2023-12-22 02:04:33,202 INFO L226 Difference]: Without dead ends: 116127 [2023-12-22 02:04:33,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1855 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=960, Invalid=7412, Unknown=0, NotChecked=0, Total=8372 [2023-12-22 02:04:33,228 INFO L413 NwaCegarLoop]: 1738 mSDtfsCounter, 3833 mSDsluCounter, 33943 mSDsCounter, 0 mSdLazyCounter, 5573 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3833 SdHoareTripleChecker+Valid, 35681 SdHoareTripleChecker+Invalid, 5590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 5573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:04:33,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3833 Valid, 35681 Invalid, 5590 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 5573 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-22 02:04:33,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116127 states. [2023-12-22 02:04:48,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116127 to 96895. [2023-12-22 02:04:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96895 states, 96893 states have (on average 1.1912934886937137) internal successors, (115428), 96894 states have internal predecessors, (115428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:04:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96895 states to 96895 states and 115428 transitions. [2023-12-22 02:04:48,517 INFO L78 Accepts]: Start accepts. Automaton has 96895 states and 115428 transitions. Word has length 253 [2023-12-22 02:04:48,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:04:48,517 INFO L495 AbstractCegarLoop]: Abstraction has 96895 states and 115428 transitions. [2023-12-22 02:04:48,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 13.5) internal successors, (486), 36 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:04:48,517 INFO L276 IsEmpty]: Start isEmpty. Operand 96895 states and 115428 transitions. [2023-12-22 02:04:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-22 02:04:48,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:04:48,536 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:04:48,541 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 (46)] Forceful destruction successful, exit code 0 [2023-12-22 02:04:48,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /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 [2023-12-22 02:04:48,738 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:04:48,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:04:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1650085132, now seen corresponding path program 1 times [2023-12-22 02:04:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:04:48,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629502350] [2023-12-22 02:04:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:04:48,739 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 [2023-12-22 02:04:48,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:04:48,740 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-12-22 02:04:48,741 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 (47)] Waiting until timeout for monitored process [2023-12-22 02:04:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:04:48,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 02:04:48,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:04:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 84 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:04:51,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:04:52,863 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 84 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:04:52,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:04:52,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629502350] [2023-12-22 02:04:52,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629502350] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:04:52,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:04:52,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 02:04:52,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624470807] [2023-12-22 02:04:52,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:04:52,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 02:04:52,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:04:52,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 02:04:52,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 02:04:52,866 INFO L87 Difference]: Start difference. First operand 96895 states and 115428 transitions. Second operand has 36 states, 36 states have (on average 13.36111111111111) internal successors, (481), 36 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)