/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.8.ufo.UNBOUNDED.pals+Problem12_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:05:54,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:05:54,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 08:05:54,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:05:54,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:05:54,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:05:54,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:05:54,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:05:54,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:05:54,728 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:05:54,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:05:54,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:05:54,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:05:54,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:05:54,730 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:05:54,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:05:54,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:05:54,731 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:05:54,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:05:54,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:05:54,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:05:54,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:05:54,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:05:54,732 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:05:54,732 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:05:54,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:05:54,733 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:05:54,733 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:05:54,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:05:54,733 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:05:54,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:05:54,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:05:54,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:05:54,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:05:54,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:05:54,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:05:54,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:05:54,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:05:54,735 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:05:54,735 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:05:54,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:05:54,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:05:54,735 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:05:54,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:05:54,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:05:54,736 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:05:54,736 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:05:54,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:05:54,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:05:54,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:05:54,929 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:05:54,929 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:05:54,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 08:05:55,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:05:56,278 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:05:56,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 08:05:56,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f6444f8/c3d3b231945d4e458be92ee84c66edbf/FLAG595719f76 [2023-12-16 08:05:56,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f6444f8/c3d3b231945d4e458be92ee84c66edbf [2023-12-16 08:05:56,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:05:56,323 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:05:56,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:05:56,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:05:56,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:05:56,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:05:56" (1/1) ... [2023-12-16 08:05:56,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359ab69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:56, skipping insertion in model container [2023-12-16 08:05:56,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:05:56" (1/1) ... [2023-12-16 08:05:56,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:05:56,721 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.8.ufo.UNBOUNDED.pals+Problem12_label02.c[26888,26901] [2023-12-16 08:05:56,754 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.8.ufo.UNBOUNDED.pals+Problem12_label02.c[34178,34191] [2023-12-16 08:05:57,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:05:57,265 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:05:57,308 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.8.ufo.UNBOUNDED.pals+Problem12_label02.c[26888,26901] [2023-12-16 08:05:57,320 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.8.ufo.UNBOUNDED.pals+Problem12_label02.c[34178,34191] [2023-12-16 08:05:57,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:05:57,640 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:05:57,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57 WrapperNode [2023-12-16 08:05:57,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:05:57,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:05:57,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:05:57,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:05:57,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:57,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:57,815 INFO L138 Inliner]: procedures = 41, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5250 [2023-12-16 08:05:57,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:05:57,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:05:57,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:05:57,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:05:57,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:57,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:57,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:57,908 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 08:05:57,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:57,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:58,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:58,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:58,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:58,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:58,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:05:58,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:05:58,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:05:58,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:05:58,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (1/1) ... [2023-12-16 08:05:58,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:05:58,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:05:58,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 08:05:58,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 08:05:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:05:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:05:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:05:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:05:58,470 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:05:58,471 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:06:21,959 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:06:22,016 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:06:22,016 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 08:06:22,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:06:22 BoogieIcfgContainer [2023-12-16 08:06:22,017 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:06:22,019 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:06:22,019 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:06:22,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:06:22,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:05:56" (1/3) ... [2023-12-16 08:06:22,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558011e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:06:22, skipping insertion in model container [2023-12-16 08:06:22,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:57" (2/3) ... [2023-12-16 08:06:22,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558011e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:06:22, skipping insertion in model container [2023-12-16 08:06:22,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:06:22" (3/3) ... [2023-12-16 08:06:22,024 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 08:06:22,037 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:06:22,037 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:06:22,101 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:06:22,107 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;@cb762b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:06:22,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:06:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 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) [2023-12-16 08:06:22,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 08:06:22,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:22,129 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] [2023-12-16 08:06:22,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:22,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:22,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1451363693, now seen corresponding path program 1 times [2023-12-16 08:06:22,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:22,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557742127] [2023-12-16 08:06:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:22,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:22,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:22,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:06:22,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 08:06:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:22,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:06:22,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:22,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:22,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:22,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557742127] [2023-12-16 08:06:22,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557742127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:22,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:22,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:06:22,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486561269] [2023-12-16 08:06:22,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:22,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:06:22,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:22,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:06:22,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:06:22,328 INFO L87 Difference]: Start difference. First operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-12-16 08:06:22,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:22,430 INFO L93 Difference]: Finished difference Result 1702 states and 3341 transitions. [2023-12-16 08:06:22,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:06:22,433 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2023-12-16 08:06:22,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:22,445 INFO L225 Difference]: With dead ends: 1702 [2023-12-16 08:06:22,446 INFO L226 Difference]: Without dead ends: 880 [2023-12-16 08:06:22,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:06:22,452 INFO L413 NwaCegarLoop]: 1663 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, 1663 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 [2023-12-16 08:06:22,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1663 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:06:22,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-16 08:06:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-16 08:06:22,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.8952164009111618) internal successors, (1664), 879 states have internal predecessors, (1664), 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) [2023-12-16 08:06:22,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1664 transitions. [2023-12-16 08:06:22,530 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1664 transitions. Word has length 27 [2023-12-16 08:06:22,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:22,530 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1664 transitions. [2023-12-16 08:06:22,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-12-16 08:06:22,530 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1664 transitions. [2023-12-16 08:06:22,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 08:06:22,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:22,532 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] [2023-12-16 08:06:22,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 08:06:22,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:22,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:22,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:22,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1038165269, now seen corresponding path program 1 times [2023-12-16 08:06:22,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:22,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115428093] [2023-12-16 08:06:22,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:22,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:22,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:22,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:06:22,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:06:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:22,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:06:22,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:23,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:23,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:23,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:23,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115428093] [2023-12-16 08:06:23,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115428093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:23,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:23,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:06:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412199795] [2023-12-16 08:06:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:23,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:06:23,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:23,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:06:23,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:06:23,010 INFO L87 Difference]: Start difference. First operand 880 states and 1664 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-16 08:06:23,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:23,139 INFO L93 Difference]: Finished difference Result 944 states and 1766 transitions. [2023-12-16 08:06:23,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:06:23,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-12-16 08:06:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:23,145 INFO L225 Difference]: With dead ends: 944 [2023-12-16 08:06:23,146 INFO L226 Difference]: Without dead ends: 880 [2023-12-16 08:06:23,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:06:23,147 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:06:23,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4918 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:06:23,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-16 08:06:23,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-16 08:06:23,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.825740318906606) internal successors, (1603), 879 states have internal predecessors, (1603), 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) [2023-12-16 08:06:23,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1603 transitions. [2023-12-16 08:06:23,164 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1603 transitions. Word has length 27 [2023-12-16 08:06:23,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:23,164 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1603 transitions. [2023-12-16 08:06:23,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-16 08:06:23,165 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1603 transitions. [2023-12-16 08:06:23,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:06:23,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:23,170 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] [2023-12-16 08:06:23,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:06:23,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:23,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:23,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:23,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1852062853, now seen corresponding path program 1 times [2023-12-16 08:06:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:23,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31972079] [2023-12-16 08:06:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:23,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:23,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:23,382 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:06:23,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 08:06:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:23,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:06:23,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:23,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:23,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:23,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31972079] [2023-12-16 08:06:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31972079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:23,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:23,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:06:23,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761102615] [2023-12-16 08:06:23,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:23,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:06:23,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:23,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:06:23,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:23,607 INFO L87 Difference]: Start difference. First operand 880 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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) [2023-12-16 08:06:54,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:54,153 INFO L93 Difference]: Finished difference Result 2384 states and 4476 transitions. [2023-12-16 08:06:54,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:06:54,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2023-12-16 08:06:54,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:54,160 INFO L225 Difference]: With dead ends: 2384 [2023-12-16 08:06:54,160 INFO L226 Difference]: Without dead ends: 1631 [2023-12-16 08:06:54,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:54,162 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 881 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:06:54,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 385 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 30.4s Time] [2023-12-16 08:06:54,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-16 08:06:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2023-12-16 08:06:54,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.7397176181706568) internal successors, (2834), 1630 states have internal predecessors, (2834), 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) [2023-12-16 08:06:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2834 transitions. [2023-12-16 08:06:54,188 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2834 transitions. Word has length 62 [2023-12-16 08:06:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:54,189 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2834 transitions. [2023-12-16 08:06:54,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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) [2023-12-16 08:06:54,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2834 transitions. [2023-12-16 08:06:54,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 08:06:54,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:54,192 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:54,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:06:54,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:54,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:54,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:54,397 INFO L85 PathProgramCache]: Analyzing trace with hash 64149573, now seen corresponding path program 1 times [2023-12-16 08:06:54,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:54,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377791833] [2023-12-16 08:06:54,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:54,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:54,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:54,399 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:06:54,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 08:06:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:54,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 08:06:54,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:56,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:56,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:56,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:56,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377791833] [2023-12-16 08:06:56,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377791833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:56,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:56,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 08:06:56,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566362792] [2023-12-16 08:06:56,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:56,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:06:56,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:56,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:06:56,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:06:56,361 INFO L87 Difference]: Start difference. First operand 1631 states and 2834 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2023-12-16 08:06:56,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:56,911 INFO L93 Difference]: Finished difference Result 2180 states and 3725 transitions. [2023-12-16 08:06:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 08:06:56,913 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 87 [2023-12-16 08:06:56,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:56,920 INFO L225 Difference]: With dead ends: 2180 [2023-12-16 08:06:56,920 INFO L226 Difference]: Without dead ends: 2119 [2023-12-16 08:06:56,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:06:56,923 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 3792 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3792 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:06:56,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3792 Valid, 3042 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:06:56,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2023-12-16 08:06:56,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1749. [2023-12-16 08:06:56,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1747 states have (on average 1.7326846021751574) internal successors, (3027), 1748 states have internal predecessors, (3027), 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) [2023-12-16 08:06:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 3027 transitions. [2023-12-16 08:06:56,951 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 3027 transitions. Word has length 87 [2023-12-16 08:06:56,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:56,952 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 3027 transitions. [2023-12-16 08:06:56,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2023-12-16 08:06:56,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 3027 transitions. [2023-12-16 08:06:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 08:06:56,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:56,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:56,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 08:06:57,164 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 [2023-12-16 08:06:57,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:57,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:57,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1377991541, now seen corresponding path program 1 times [2023-12-16 08:06:57,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:57,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348288429] [2023-12-16 08:06:57,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:57,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:57,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:57,167 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) [2023-12-16 08:06:57,171 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 [2023-12-16 08:06:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:57,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:06:57,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:57,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:57,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:57,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348288429] [2023-12-16 08:06:57,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348288429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:57,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:57,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:06:57,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471123177] [2023-12-16 08:06:57,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:57,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:06:57,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:57,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:06:57,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:57,409 INFO L87 Difference]: Start difference. First operand 1749 states and 3027 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-16 08:06:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:57,460 INFO L93 Difference]: Finished difference Result 2091 states and 3583 transitions. [2023-12-16 08:06:57,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:06:57,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2023-12-16 08:06:57,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:57,466 INFO L225 Difference]: With dead ends: 2091 [2023-12-16 08:06:57,466 INFO L226 Difference]: Without dead ends: 1912 [2023-12-16 08:06:57,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:57,467 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1506 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:06:57,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1687 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:06:57,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2023-12-16 08:06:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1907. [2023-12-16 08:06:57,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.721259842519685) internal successors, (3279), 1906 states have internal predecessors, (3279), 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) [2023-12-16 08:06:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3279 transitions. [2023-12-16 08:06:57,492 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3279 transitions. Word has length 89 [2023-12-16 08:06:57,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:57,492 INFO L495 AbstractCegarLoop]: Abstraction has 1907 states and 3279 transitions. [2023-12-16 08:06:57,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-16 08:06:57,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3279 transitions. [2023-12-16 08:06:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 08:06:57,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:57,493 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:57,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 08:06:57,696 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 [2023-12-16 08:06:57,697 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:57,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:57,697 INFO L85 PathProgramCache]: Analyzing trace with hash -294343871, now seen corresponding path program 1 times [2023-12-16 08:06:57,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:57,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821513545] [2023-12-16 08:06:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:57,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:57,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:57,699 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:06:57,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 08:06:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:57,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:06:57,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:57,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:57,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:57,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821513545] [2023-12-16 08:06:57,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821513545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:57,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:57,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:06:57,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149249603] [2023-12-16 08:06:57,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:57,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:06:57,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:57,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:06:57,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:06:57,823 INFO L87 Difference]: Start difference. First operand 1907 states and 3279 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-16 08:06:57,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:57,889 INFO L93 Difference]: Finished difference Result 1921 states and 3296 transitions. [2023-12-16 08:06:57,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:06:57,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2023-12-16 08:06:57,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:57,896 INFO L225 Difference]: With dead ends: 1921 [2023-12-16 08:06:57,896 INFO L226 Difference]: Without dead ends: 1919 [2023-12-16 08:06:57,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:06:57,897 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 1 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:06:57,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4789 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:06:57,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2023-12-16 08:06:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1915. [2023-12-16 08:06:57,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1913 states have (on average 1.7177208572922111) internal successors, (3286), 1914 states have internal predecessors, (3286), 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) [2023-12-16 08:06:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 3286 transitions. [2023-12-16 08:06:57,920 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 3286 transitions. Word has length 90 [2023-12-16 08:06:57,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:57,920 INFO L495 AbstractCegarLoop]: Abstraction has 1915 states and 3286 transitions. [2023-12-16 08:06:57,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-16 08:06:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 3286 transitions. [2023-12-16 08:06:57,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:06:57,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:57,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:57,927 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 [2023-12-16 08:06:58,125 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 [2023-12-16 08:06:58,125 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:58,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:58,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1953031475, now seen corresponding path program 1 times [2023-12-16 08:06:58,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:58,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072321583] [2023-12-16 08:06:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:58,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:58,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:58,127 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) [2023-12-16 08:06:58,160 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 [2023-12-16 08:06:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:58,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:06:58,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:58,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:58,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:58,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072321583] [2023-12-16 08:06:58,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072321583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:58,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:58,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:06:58,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941629174] [2023-12-16 08:06:58,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:58,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:06:58,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:58,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:06:58,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:58,362 INFO L87 Difference]: Start difference. First operand 1915 states and 3286 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:06:58,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:58,400 INFO L93 Difference]: Finished difference Result 2581 states and 4346 transitions. [2023-12-16 08:06:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:06:58,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-16 08:06:58,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:58,406 INFO L225 Difference]: With dead ends: 2581 [2023-12-16 08:06:58,407 INFO L226 Difference]: Without dead ends: 2236 [2023-12-16 08:06:58,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:58,408 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 1525 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1778 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 [2023-12-16 08:06:58,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:06:58,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2023-12-16 08:06:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2234. [2023-12-16 08:06:58,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 2232 states have (on average 1.6971326164874552) internal successors, (3788), 2233 states have internal predecessors, (3788), 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) [2023-12-16 08:06:58,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 3788 transitions. [2023-12-16 08:06:58,446 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 3788 transitions. Word has length 91 [2023-12-16 08:06:58,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:58,446 INFO L495 AbstractCegarLoop]: Abstraction has 2234 states and 3788 transitions. [2023-12-16 08:06:58,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:06:58,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 3788 transitions. [2023-12-16 08:06:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:06:58,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:58,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:58,463 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 [2023-12-16 08:06:58,652 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 [2023-12-16 08:06:58,652 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:58,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1197647411, now seen corresponding path program 1 times [2023-12-16 08:06:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:58,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032197261] [2023-12-16 08:06:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:58,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:58,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:58,661 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) [2023-12-16 08:06:58,703 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 [2023-12-16 08:06:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:58,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:06:58,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:58,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:58,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:58,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032197261] [2023-12-16 08:06:58,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032197261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:58,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:58,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:06:58,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215653620] [2023-12-16 08:06:58,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:58,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:06:58,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:58,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:06:58,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:58,869 INFO L87 Difference]: Start difference. First operand 2234 states and 3788 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:06:58,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:58,915 INFO L93 Difference]: Finished difference Result 3514 states and 5810 transitions. [2023-12-16 08:06:58,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:06:58,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-16 08:06:58,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:58,923 INFO L225 Difference]: With dead ends: 3514 [2023-12-16 08:06:58,923 INFO L226 Difference]: Without dead ends: 2850 [2023-12-16 08:06:58,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:58,927 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 1523 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1780 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 [2023-12-16 08:06:58,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:06:58,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2023-12-16 08:06:58,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2848. [2023-12-16 08:06:58,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2846 states have (on average 1.6669009135628954) internal successors, (4744), 2847 states have internal predecessors, (4744), 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) [2023-12-16 08:06:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4744 transitions. [2023-12-16 08:06:58,967 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4744 transitions. Word has length 91 [2023-12-16 08:06:58,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:58,967 INFO L495 AbstractCegarLoop]: Abstraction has 2848 states and 4744 transitions. [2023-12-16 08:06:58,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:06:58,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4744 transitions. [2023-12-16 08:06:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:06:58,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:58,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:58,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 08:06:59,174 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 [2023-12-16 08:06:59,175 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:59,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:59,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1876617267, now seen corresponding path program 1 times [2023-12-16 08:06:59,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:59,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210024251] [2023-12-16 08:06:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:59,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:59,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:59,194 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) [2023-12-16 08:06:59,208 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 [2023-12-16 08:06:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:59,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:06:59,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:06:59,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:59,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:59,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210024251] [2023-12-16 08:06:59,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210024251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:59,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:59,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:06:59,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601602111] [2023-12-16 08:06:59,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:59,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:06:59,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:59,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:06:59,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:59,378 INFO L87 Difference]: Start difference. First operand 2848 states and 4744 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:06:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:59,439 INFO L93 Difference]: Finished difference Result 5308 states and 8594 transitions. [2023-12-16 08:06:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:06:59,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-16 08:06:59,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:59,450 INFO L225 Difference]: With dead ends: 5308 [2023-12-16 08:06:59,450 INFO L226 Difference]: Without dead ends: 4030 [2023-12-16 08:06:59,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:59,453 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1519 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1776 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 [2023-12-16 08:06:59,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1776 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:06:59,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4030 states. [2023-12-16 08:06:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4030 to 4028. [2023-12-16 08:06:59,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 4026 states have (on average 1.6294088425235966) internal successors, (6560), 4027 states have internal predecessors, (6560), 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) [2023-12-16 08:06:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 6560 transitions. [2023-12-16 08:06:59,549 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 6560 transitions. Word has length 91 [2023-12-16 08:06:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:59,549 INFO L495 AbstractCegarLoop]: Abstraction has 4028 states and 6560 transitions. [2023-12-16 08:06:59,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:06:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 6560 transitions. [2023-12-16 08:06:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:06:59,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:59,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:59,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 08:06:59,755 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 [2023-12-16 08:06:59,755 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:59,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1836673331, now seen corresponding path program 1 times [2023-12-16 08:06:59,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:59,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168604873] [2023-12-16 08:06:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:59,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:59,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:59,762 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) [2023-12-16 08:06:59,818 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 [2023-12-16 08:06:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:59,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:06:59,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:07:00,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:00,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:00,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168604873] [2023-12-16 08:07:00,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168604873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:00,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:00,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:00,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081399718] [2023-12-16 08:07:00,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:00,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:00,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:00,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:00,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:00,001 INFO L87 Difference]: Start difference. First operand 4028 states and 6560 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:07:00,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:00,069 INFO L93 Difference]: Finished difference Result 8752 states and 13874 transitions. [2023-12-16 08:07:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:00,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-16 08:07:00,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:00,086 INFO L225 Difference]: With dead ends: 8752 [2023-12-16 08:07:00,086 INFO L226 Difference]: Without dead ends: 6294 [2023-12-16 08:07:00,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:00,090 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 1517 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1778 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 [2023-12-16 08:07:00,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:00,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6294 states. [2023-12-16 08:07:00,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6294 to 6292. [2023-12-16 08:07:00,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 1.589825119236884) internal successors, (10000), 6291 states have internal predecessors, (10000), 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) [2023-12-16 08:07:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 10000 transitions. [2023-12-16 08:07:00,201 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 10000 transitions. Word has length 91 [2023-12-16 08:07:00,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:00,201 INFO L495 AbstractCegarLoop]: Abstraction has 6292 states and 10000 transitions. [2023-12-16 08:07:00,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:07:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 10000 transitions. [2023-12-16 08:07:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:07:00,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:00,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:07:00,212 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 (11)] Ended with exit code 0 [2023-12-16 08:07:00,412 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 [2023-12-16 08:07:00,412 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:00,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1573595955, now seen corresponding path program 1 times [2023-12-16 08:07:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:00,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044566181] [2023-12-16 08:07:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:00,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:07:00,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:00,414 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) [2023-12-16 08:07:00,440 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 [2023-12-16 08:07:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:00,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:00,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:07:00,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:00,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:00,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044566181] [2023-12-16 08:07:00,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044566181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:00,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:00,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:00,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628813554] [2023-12-16 08:07:00,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:00,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:00,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:00,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:00,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:00,621 INFO L87 Difference]: Start difference. First operand 6292 states and 10000 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:07:00,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:00,724 INFO L93 Difference]: Finished difference Result 15352 states and 23858 transitions. [2023-12-16 08:07:00,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:00,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-16 08:07:00,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:00,753 INFO L225 Difference]: With dead ends: 15352 [2023-12-16 08:07:00,754 INFO L226 Difference]: Without dead ends: 10630 [2023-12-16 08:07:00,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:00,764 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 1513 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1774 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 [2023-12-16 08:07:00,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1774 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:00,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10630 states. [2023-12-16 08:07:01,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10630 to 10628. [2023-12-16 08:07:01,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10628 states, 10626 states have (on average 1.5524185958968568) internal successors, (16496), 10627 states have internal predecessors, (16496), 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) [2023-12-16 08:07:01,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10628 states to 10628 states and 16496 transitions. [2023-12-16 08:07:01,091 INFO L78 Accepts]: Start accepts. Automaton has 10628 states and 16496 transitions. Word has length 91 [2023-12-16 08:07:01,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:01,091 INFO L495 AbstractCegarLoop]: Abstraction has 10628 states and 16496 transitions. [2023-12-16 08:07:01,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:07:01,092 INFO L276 IsEmpty]: Start isEmpty. Operand 10628 states and 16496 transitions. [2023-12-16 08:07:01,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:07:01,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:01,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:07:01,113 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 [2023-12-16 08:07:01,297 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 [2023-12-16 08:07:01,297 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:01,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:01,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1832637901, now seen corresponding path program 1 times [2023-12-16 08:07:01,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:01,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518405921] [2023-12-16 08:07:01,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:01,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:07:01,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:01,313 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) [2023-12-16 08:07:01,343 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 [2023-12-16 08:07:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:01,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:01,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:07:01,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:01,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:01,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518405921] [2023-12-16 08:07:01,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518405921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:01,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:01,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:01,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253189170] [2023-12-16 08:07:01,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:01,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:01,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:01,560 INFO L87 Difference]: Start difference. First operand 10628 states and 16496 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:07:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:01,756 INFO L93 Difference]: Finished difference Result 27976 states and 42674 transitions. [2023-12-16 08:07:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-16 08:07:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:01,785 INFO L225 Difference]: With dead ends: 27976 [2023-12-16 08:07:01,786 INFO L226 Difference]: Without dead ends: 18918 [2023-12-16 08:07:01,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:01,799 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 1515 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1780 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 [2023-12-16 08:07:01,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18918 states. [2023-12-16 08:07:02,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18918 to 18916. [2023-12-16 08:07:02,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18916 states, 18914 states have (on average 1.5184519403616368) internal successors, (28720), 18915 states have internal predecessors, (28720), 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) [2023-12-16 08:07:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18916 states to 18916 states and 28720 transitions. [2023-12-16 08:07:02,267 INFO L78 Accepts]: Start accepts. Automaton has 18916 states and 28720 transitions. Word has length 91 [2023-12-16 08:07:02,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:02,267 INFO L495 AbstractCegarLoop]: Abstraction has 18916 states and 28720 transitions. [2023-12-16 08:07:02,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:07:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand 18916 states and 28720 transitions. [2023-12-16 08:07:02,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:07:02,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:02,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:07:02,277 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 [2023-12-16 08:07:02,472 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 [2023-12-16 08:07:02,473 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:02,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:02,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1608034099, now seen corresponding path program 1 times [2023-12-16 08:07:02,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:02,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725330628] [2023-12-16 08:07:02,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:02,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:07:02,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:02,489 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) [2023-12-16 08:07:02,504 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 [2023-12-16 08:07:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:02,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:02,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:07:02,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:02,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:02,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725330628] [2023-12-16 08:07:02,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725330628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:02,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:02,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:02,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012536814] [2023-12-16 08:07:02,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:02,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:02,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:02,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:02,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:02,682 INFO L87 Difference]: Start difference. First operand 18916 states and 28720 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:07:03,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:03,064 INFO L93 Difference]: Finished difference Result 52072 states and 78002 transitions. [2023-12-16 08:07:03,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:03,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-16 08:07:03,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:03,116 INFO L225 Difference]: With dead ends: 52072 [2023-12-16 08:07:03,116 INFO L226 Difference]: Without dead ends: 34726 [2023-12-16 08:07:03,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:03,134 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 1521 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1782 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 [2023-12-16 08:07:03,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1782 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:03,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34726 states. [2023-12-16 08:07:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34726 to 34724. [2023-12-16 08:07:03,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34724 states, 34722 states have (on average 1.487011116871148) internal successors, (51632), 34723 states have internal predecessors, (51632), 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) [2023-12-16 08:07:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34724 states to 34724 states and 51632 transitions. [2023-12-16 08:07:03,815 INFO L78 Accepts]: Start accepts. Automaton has 34724 states and 51632 transitions. Word has length 91 [2023-12-16 08:07:03,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:03,816 INFO L495 AbstractCegarLoop]: Abstraction has 34724 states and 51632 transitions. [2023-12-16 08:07:03,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-16 08:07:03,816 INFO L276 IsEmpty]: Start isEmpty. Operand 34724 states and 51632 transitions. [2023-12-16 08:07:03,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 08:07:03,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:03,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:07:03,822 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 (14)] Ended with exit code 0 [2023-12-16 08:07:04,022 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 [2023-12-16 08:07:04,022 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:04,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:04,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1270173042, now seen corresponding path program 1 times [2023-12-16 08:07:04,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:04,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507390869] [2023-12-16 08:07:04,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:04,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:07:04,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:04,024 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) [2023-12-16 08:07:04,028 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 [2023-12-16 08:07:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:04,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:04,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:04,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:07:04,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:04,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:04,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507390869] [2023-12-16 08:07:04,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507390869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:04,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:04,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:04,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994707562] [2023-12-16 08:07:04,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:04,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:04,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:04,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:04,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:04,215 INFO L87 Difference]: Start difference. First operand 34724 states and 51632 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-16 08:07:04,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:04,645 INFO L93 Difference]: Finished difference Result 68523 states and 102326 transitions. [2023-12-16 08:07:04,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:04,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2023-12-16 08:07:04,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:04,710 INFO L225 Difference]: With dead ends: 68523 [2023-12-16 08:07:04,710 INFO L226 Difference]: Without dead ends: 50472 [2023-12-16 08:07:04,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:04,735 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1524 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1779 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 [2023-12-16 08:07:04,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:04,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50472 states. Received shutdown request... [2023-12-16 08:07:05,009 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:07:05,014 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:07:05,014 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:07:05,027 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 08:07:05,214 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 [2023-12-16 08:07:05,214 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 08:07:05,215 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:07:05,217 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:07:05,220 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:07:05,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:07:05 BoogieIcfgContainer [2023-12-16 08:07:05,222 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:07:05,222 INFO L158 Benchmark]: Toolchain (without parser) took 68898.81ms. Allocated memory was 235.9MB in the beginning and 830.5MB in the end (delta: 594.5MB). Free memory was 159.9MB in the beginning and 473.7MB in the end (delta: -313.9MB). Peak memory consumption was 645.6MB. Max. memory is 8.0GB. [2023-12-16 08:07:05,222 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory was 146.2MB in the beginning and 146.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:07:05,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1314.16ms. Allocated memory is still 235.9MB. Free memory was 159.9MB in the beginning and 151.8MB in the end (delta: 8.0MB). Peak memory consumption was 71.0MB. Max. memory is 8.0GB. [2023-12-16 08:07:05,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 174.27ms. Allocated memory is still 235.9MB. Free memory was 151.8MB in the beginning and 115.1MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-16 08:07:05,223 INFO L158 Benchmark]: Boogie Preprocessor took 343.67ms. Allocated memory was 235.9MB in the beginning and 346.0MB in the end (delta: 110.1MB). Free memory was 115.1MB in the beginning and 248.8MB in the end (delta: -133.7MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. [2023-12-16 08:07:05,223 INFO L158 Benchmark]: RCFGBuilder took 23855.81ms. Allocated memory was 346.0MB in the beginning and 692.1MB in the end (delta: 346.0MB). Free memory was 248.8MB in the beginning and 343.3MB in the end (delta: -94.5MB). Peak memory consumption was 255.2MB. Max. memory is 8.0GB. [2023-12-16 08:07:05,223 INFO L158 Benchmark]: TraceAbstraction took 43202.28ms. Allocated memory was 692.1MB in the beginning and 830.5MB in the end (delta: 138.4MB). Free memory was 342.3MB in the beginning and 473.7MB in the end (delta: -131.5MB). Peak memory consumption was 370.8MB. Max. memory is 8.0GB. [2023-12-16 08:07:05,224 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory was 146.2MB in the beginning and 146.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1314.16ms. Allocated memory is still 235.9MB. Free memory was 159.9MB in the beginning and 151.8MB in the end (delta: 8.0MB). Peak memory consumption was 71.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 174.27ms. Allocated memory is still 235.9MB. Free memory was 151.8MB in the beginning and 115.1MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 343.67ms. Allocated memory was 235.9MB in the beginning and 346.0MB in the end (delta: 110.1MB). Free memory was 115.1MB in the beginning and 248.8MB in the end (delta: -133.7MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. * RCFGBuilder took 23855.81ms. Allocated memory was 346.0MB in the beginning and 692.1MB in the end (delta: 346.0MB). Free memory was 248.8MB in the beginning and 343.3MB in the end (delta: -94.5MB). Peak memory consumption was 255.2MB. Max. memory is 8.0GB. * TraceAbstraction took 43202.28ms. Allocated memory was 692.1MB in the beginning and 830.5MB in the end (delta: 138.4MB). Free memory was 342.3MB in the beginning and 473.7MB in the end (delta: -131.5MB). Peak memory consumption was 370.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 683). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 887]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 887). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 884 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 43.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 33.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18337 SdHoareTripleChecker+Valid, 31.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18337 mSDsluCounter, 30711 SdHoareTripleChecker+Invalid, 26.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8897 mSDsCounter, 597 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2760 IncrementalHoareTripleChecker+Invalid, 3357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 597 mSolverCounterUnsat, 21814 mSDtfsCounter, 2760 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1098 GetRequests, 1076 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34724occurred in iteration=13, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 393 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1112 NumberOfCodeBlocks, 1112 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1098 ConstructedInterpolants, 0 QuantifiedInterpolants, 4844 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3242 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown