/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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:19:40,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:19:40,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:19:40,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:19:40,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:19:40,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:19:40,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:19:40,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:19:40,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:19:40,867 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:19:40,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:19:40,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:19:40,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:19:40,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:19:40,870 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:19:40,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:19:40,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:19:40,871 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:19:40,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:19:40,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:19:40,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:19:40,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:19:40,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:19:40,873 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:19:40,873 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:19:40,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:19:40,874 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:19:40,874 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:19:40,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:19:40,874 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:19:40,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:19:40,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:19:40,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:19:40,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:19:40,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:19:40,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:19:40,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:19:40,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:19:40,877 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:19:40,877 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:19:40,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:19:40,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:19:40,877 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:19:40,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:19:40,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:19:40,878 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:19:40,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:19:41,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:19:41,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:19:41,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:19:41,171 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:19:41,174 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:19:41,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-25 09:19:42,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:19:42,615 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:19:42,616 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-25 09:19:42,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c147273a/1a86cf3fbf6e4f82aa641e8a49707919/FLAGf4be516d4 [2023-12-25 09:19:42,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c147273a/1a86cf3fbf6e4f82aa641e8a49707919 [2023-12-25 09:19:42,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:19:42,644 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:19:42,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:19:42,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:19:42,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:19:42,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:42,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9e4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42, skipping insertion in model container [2023-12-25 09:19:42,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:42,695 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:19:42,849 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4411,4424] [2023-12-25 09:19:42,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:19:42,892 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:19:42,927 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4411,4424] [2023-12-25 09:19:42,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:19:42,966 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:19:42,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42 WrapperNode [2023-12-25 09:19:42,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:19:42,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:19:42,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:19:42,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:19:42,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:42,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,009 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 347 [2023-12-25 09:19:43,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:19:43,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:19:43,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:19:43,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:19:43,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,052 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]. [2023-12-25 09:19:43,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:19:43,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:19:43,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:19:43,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:19:43,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (1/1) ... [2023-12-25 09:19:43,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:19:43,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:19:43,129 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) [2023-12-25 09:19:43,154 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 [2023-12-25 09:19:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:19:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:19:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:19:43,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:19:43,296 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:19:43,298 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:19:43,738 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:19:43,790 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:19:43,791 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:19:43,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:19:43 BoogieIcfgContainer [2023-12-25 09:19:43,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:19:43,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:19:43,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:19:43,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:19:43,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:19:42" (1/3) ... [2023-12-25 09:19:43,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0796cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:19:43, skipping insertion in model container [2023-12-25 09:19:43,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:42" (2/3) ... [2023-12-25 09:19:43,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0796cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:19:43, skipping insertion in model container [2023-12-25 09:19:43,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:19:43" (3/3) ... [2023-12-25 09:19:43,798 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-25 09:19:43,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:19:43,813 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 09:19:43,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:19:43,860 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;@539ff514, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:19:43,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 09:19:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.6867469879518073) internal successors, (140), 84 states have internal predecessors, (140), 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) [2023-12-25 09:19:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-25 09:19:43,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:43,877 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] [2023-12-25 09:19:43,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:43,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:43,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2074678528, now seen corresponding path program 1 times [2023-12-25 09:19:43,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:43,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042599683] [2023-12-25 09:19:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:43,893 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 [2023-12-25 09:19:43,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:43,895 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) [2023-12-25 09:19:43,896 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 [2023-12-25 09:19:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:44,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:44,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:44,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:44,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:44,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:44,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042599683] [2023-12-25 09:19:44,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042599683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:44,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:44,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:44,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626714982] [2023-12-25 09:19:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:44,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:44,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:44,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:44,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:44,113 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.6867469879518073) internal successors, (140), 84 states have internal predecessors, (140), 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 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-12-25 09:19:44,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:44,161 INFO L93 Difference]: Finished difference Result 201 states and 320 transitions. [2023-12-25 09:19:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:44,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2023-12-25 09:19:44,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:44,172 INFO L225 Difference]: With dead ends: 201 [2023-12-25 09:19:44,172 INFO L226 Difference]: Without dead ends: 131 [2023-12-25 09:19:44,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:44,178 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 93 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 275 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 [2023-12-25 09:19:44,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 275 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:44,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-25 09:19:44,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2023-12-25 09:19:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.5078125) internal successors, (193), 128 states have internal predecessors, (193), 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) [2023-12-25 09:19:44,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 193 transitions. [2023-12-25 09:19:44,217 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 193 transitions. Word has length 37 [2023-12-25 09:19:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:44,217 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 193 transitions. [2023-12-25 09:19:44,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-12-25 09:19:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 193 transitions. [2023-12-25 09:19:44,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-25 09:19:44,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:44,219 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] [2023-12-25 09:19:44,228 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 [2023-12-25 09:19:44,422 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 [2023-12-25 09:19:44,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:44,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:44,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1791063870, now seen corresponding path program 1 times [2023-12-25 09:19:44,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:44,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106292582] [2023-12-25 09:19:44,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:44,424 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 [2023-12-25 09:19:44,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:44,426 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) [2023-12-25 09:19:44,429 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 [2023-12-25 09:19:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:44,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:44,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:44,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:44,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106292582] [2023-12-25 09:19:44,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106292582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:44,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:44,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057370490] [2023-12-25 09:19:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:44,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:44,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:44,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:44,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:44,575 INFO L87 Difference]: Start difference. First operand 129 states and 193 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2023-12-25 09:19:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:44,616 INFO L93 Difference]: Finished difference Result 317 states and 489 transitions. [2023-12-25 09:19:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:44,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2023-12-25 09:19:44,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:44,622 INFO L225 Difference]: With dead ends: 317 [2023-12-25 09:19:44,622 INFO L226 Difference]: Without dead ends: 207 [2023-12-25 09:19:44,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:44,626 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 79 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:44,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 233 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:44,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-25 09:19:44,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2023-12-25 09:19:44,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.5294117647058822) internal successors, (312), 204 states have internal predecessors, (312), 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) [2023-12-25 09:19:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 312 transitions. [2023-12-25 09:19:44,643 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 312 transitions. Word has length 38 [2023-12-25 09:19:44,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:44,643 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 312 transitions. [2023-12-25 09:19:44,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2023-12-25 09:19:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 312 transitions. [2023-12-25 09:19:44,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-25 09:19:44,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:44,645 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] [2023-12-25 09:19:44,648 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 [2023-12-25 09:19:44,846 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 [2023-12-25 09:19:44,846 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:44,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:44,847 INFO L85 PathProgramCache]: Analyzing trace with hash 71230663, now seen corresponding path program 1 times [2023-12-25 09:19:44,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:44,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978528111] [2023-12-25 09:19:44,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:44,848 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 [2023-12-25 09:19:44,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:44,849 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) [2023-12-25 09:19:44,850 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 [2023-12-25 09:19:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:44,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:19:44,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:45,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:45,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:45,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978528111] [2023-12-25 09:19:45,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978528111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:45,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:45,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:19:45,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893092301] [2023-12-25 09:19:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:45,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:19:45,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:45,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:19:45,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:45,039 INFO L87 Difference]: Start difference. First operand 205 states and 312 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2023-12-25 09:19:45,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:45,100 INFO L93 Difference]: Finished difference Result 687 states and 1067 transitions. [2023-12-25 09:19:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:45,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2023-12-25 09:19:45,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:45,104 INFO L225 Difference]: With dead ends: 687 [2023-12-25 09:19:45,104 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 09:19:45,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:45,106 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 242 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:45,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 372 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:45,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 09:19:45,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 497. [2023-12-25 09:19:45,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.5483870967741935) internal successors, (768), 496 states have internal predecessors, (768), 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) [2023-12-25 09:19:45,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 768 transitions. [2023-12-25 09:19:45,137 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 768 transitions. Word has length 39 [2023-12-25 09:19:45,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:45,137 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 768 transitions. [2023-12-25 09:19:45,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2023-12-25 09:19:45,137 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 768 transitions. [2023-12-25 09:19:45,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-25 09:19:45,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:45,139 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] [2023-12-25 09:19:45,154 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 [2023-12-25 09:19:45,342 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 [2023-12-25 09:19:45,342 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:45,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:45,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1452339857, now seen corresponding path program 1 times [2023-12-25 09:19:45,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:45,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413191134] [2023-12-25 09:19:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:45,344 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 [2023-12-25 09:19:45,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:45,345 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) [2023-12-25 09:19:45,348 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 [2023-12-25 09:19:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:45,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:45,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:45,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:45,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:45,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413191134] [2023-12-25 09:19:45,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413191134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:45,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:45,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:45,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668625350] [2023-12-25 09:19:45,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:45,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:45,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:45,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:45,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:45,465 INFO L87 Difference]: Start difference. First operand 497 states and 768 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-12-25 09:19:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:45,483 INFO L93 Difference]: Finished difference Result 1257 states and 1950 transitions. [2023-12-25 09:19:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:45,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2023-12-25 09:19:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:45,488 INFO L225 Difference]: With dead ends: 1257 [2023-12-25 09:19:45,489 INFO L226 Difference]: Without dead ends: 779 [2023-12-25 09:19:45,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:45,498 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 86 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:45,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 273 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:45,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-12-25 09:19:45,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 777. [2023-12-25 09:19:45,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 776 states have (on average 1.5309278350515463) internal successors, (1188), 776 states have internal predecessors, (1188), 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) [2023-12-25 09:19:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1188 transitions. [2023-12-25 09:19:45,541 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1188 transitions. Word has length 40 [2023-12-25 09:19:45,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:45,542 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1188 transitions. [2023-12-25 09:19:45,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-12-25 09:19:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1188 transitions. [2023-12-25 09:19:45,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-25 09:19:45,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:45,549 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] [2023-12-25 09:19:45,554 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 [2023-12-25 09:19:45,751 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 [2023-12-25 09:19:45,752 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:45,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1274696286, now seen corresponding path program 1 times [2023-12-25 09:19:45,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:45,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541357999] [2023-12-25 09:19:45,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:45,753 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 [2023-12-25 09:19:45,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:45,754 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) [2023-12-25 09:19:45,755 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 [2023-12-25 09:19:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:45,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:19:45,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:46,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:46,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:46,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:46,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541357999] [2023-12-25 09:19:46,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541357999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:46,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:46,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:19:46,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449121514] [2023-12-25 09:19:46,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:46,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:19:46,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:46,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:19:46,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:46,150 INFO L87 Difference]: Start difference. First operand 777 states and 1188 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-12-25 09:19:46,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:46,360 INFO L93 Difference]: Finished difference Result 2293 states and 3526 transitions. [2023-12-25 09:19:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:46,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2023-12-25 09:19:46,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:46,367 INFO L225 Difference]: With dead ends: 2293 [2023-12-25 09:19:46,368 INFO L226 Difference]: Without dead ends: 1535 [2023-12-25 09:19:46,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:19:46,370 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 408 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:46,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 135 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:19:46,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2023-12-25 09:19:46,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1533. [2023-12-25 09:19:46,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 1.524804177545692) internal successors, (2336), 1532 states have internal predecessors, (2336), 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) [2023-12-25 09:19:46,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2336 transitions. [2023-12-25 09:19:46,407 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2336 transitions. Word has length 41 [2023-12-25 09:19:46,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:46,407 INFO L495 AbstractCegarLoop]: Abstraction has 1533 states and 2336 transitions. [2023-12-25 09:19:46,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-12-25 09:19:46,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2336 transitions. [2023-12-25 09:19:46,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-25 09:19:46,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:46,409 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] [2023-12-25 09:19:46,415 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 [2023-12-25 09:19:46,612 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 [2023-12-25 09:19:46,612 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:46,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:46,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1245427047, now seen corresponding path program 1 times [2023-12-25 09:19:46,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:46,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359572778] [2023-12-25 09:19:46,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:46,614 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 [2023-12-25 09:19:46,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:46,615 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) [2023-12-25 09:19:46,618 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 [2023-12-25 09:19:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:46,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:19:46,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:46,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:46,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:46,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:46,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359572778] [2023-12-25 09:19:46,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359572778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:46,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:46,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:19:46,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444141853] [2023-12-25 09:19:46,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:46,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:19:46,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:46,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:19:46,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:46,908 INFO L87 Difference]: Start difference. First operand 1533 states and 2336 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2023-12-25 09:19:46,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:46,997 INFO L93 Difference]: Finished difference Result 6173 states and 9428 transitions. [2023-12-25 09:19:46,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:46,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 41 [2023-12-25 09:19:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:47,015 INFO L225 Difference]: With dead ends: 6173 [2023-12-25 09:19:47,016 INFO L226 Difference]: Without dead ends: 4659 [2023-12-25 09:19:47,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:47,021 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 357 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:47,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 488 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2023-12-25 09:19:47,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 3045. [2023-12-25 09:19:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 3044 states have (on average 1.4967148488830486) internal successors, (4556), 3044 states have internal predecessors, (4556), 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) [2023-12-25 09:19:47,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 4556 transitions. [2023-12-25 09:19:47,119 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 4556 transitions. Word has length 41 [2023-12-25 09:19:47,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:47,119 INFO L495 AbstractCegarLoop]: Abstraction has 3045 states and 4556 transitions. [2023-12-25 09:19:47,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2023-12-25 09:19:47,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 4556 transitions. [2023-12-25 09:19:47,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-25 09:19:47,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:47,121 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] [2023-12-25 09:19:47,125 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 [2023-12-25 09:19:47,324 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 [2023-12-25 09:19:47,325 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:47,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:47,326 INFO L85 PathProgramCache]: Analyzing trace with hash 27010893, now seen corresponding path program 1 times [2023-12-25 09:19:47,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:47,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336160198] [2023-12-25 09:19:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:47,326 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 [2023-12-25 09:19:47,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:47,328 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) [2023-12-25 09:19:47,329 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 [2023-12-25 09:19:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:47,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:19:47,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:47,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:47,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:47,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336160198] [2023-12-25 09:19:47,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336160198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:47,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:47,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:19:47,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601817763] [2023-12-25 09:19:47,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:47,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:19:47,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:47,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:19:47,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:19:47,407 INFO L87 Difference]: Start difference. First operand 3045 states and 4556 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-12-25 09:19:47,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:47,481 INFO L93 Difference]: Finished difference Result 6263 states and 9285 transitions. [2023-12-25 09:19:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:47,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2023-12-25 09:19:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:47,502 INFO L225 Difference]: With dead ends: 6263 [2023-12-25 09:19:47,503 INFO L226 Difference]: Without dead ends: 6261 [2023-12-25 09:19:47,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:47,505 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 190 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:47,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 408 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6261 states. [2023-12-25 09:19:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6261 to 3237. [2023-12-25 09:19:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3236 states have (on average 1.4672435105067985) internal successors, (4748), 3236 states have internal predecessors, (4748), 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) [2023-12-25 09:19:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4748 transitions. [2023-12-25 09:19:47,584 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4748 transitions. Word has length 42 [2023-12-25 09:19:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:47,585 INFO L495 AbstractCegarLoop]: Abstraction has 3237 states and 4748 transitions. [2023-12-25 09:19:47,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-12-25 09:19:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4748 transitions. [2023-12-25 09:19:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-25 09:19:47,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:47,585 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] [2023-12-25 09:19:47,597 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 (8)] Ended with exit code 0 [2023-12-25 09:19:47,788 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 [2023-12-25 09:19:47,789 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:47,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:47,789 INFO L85 PathProgramCache]: Analyzing trace with hash 847910697, now seen corresponding path program 1 times [2023-12-25 09:19:47,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:47,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645996679] [2023-12-25 09:19:47,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:47,790 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 [2023-12-25 09:19:47,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:47,791 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) [2023-12-25 09:19:47,792 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 [2023-12-25 09:19:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:47,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:47,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:47,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:47,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:47,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645996679] [2023-12-25 09:19:47,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645996679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:47,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:47,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:47,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119930199] [2023-12-25 09:19:47,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:47,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:47,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:47,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:47,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:47,899 INFO L87 Difference]: Start difference. First operand 3237 states and 4748 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-25 09:19:47,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:47,940 INFO L93 Difference]: Finished difference Result 7167 states and 10492 transitions. [2023-12-25 09:19:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:47,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2023-12-25 09:19:47,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:47,953 INFO L225 Difference]: With dead ends: 7167 [2023-12-25 09:19:47,954 INFO L226 Difference]: Without dead ends: 3949 [2023-12-25 09:19:47,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:47,959 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 66 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:47,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 212 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:47,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2023-12-25 09:19:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3927. [2023-12-25 09:19:48,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 3926 states have (on average 1.4523688232297505) internal successors, (5702), 3926 states have internal predecessors, (5702), 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) [2023-12-25 09:19:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 5702 transitions. [2023-12-25 09:19:48,035 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 5702 transitions. Word has length 43 [2023-12-25 09:19:48,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:48,035 INFO L495 AbstractCegarLoop]: Abstraction has 3927 states and 5702 transitions. [2023-12-25 09:19:48,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-25 09:19:48,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 5702 transitions. [2023-12-25 09:19:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 09:19:48,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:48,038 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:19:48,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-25 09:19:48,240 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 [2023-12-25 09:19:48,241 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:48,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:48,241 INFO L85 PathProgramCache]: Analyzing trace with hash 449838288, now seen corresponding path program 1 times [2023-12-25 09:19:48,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:48,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945689896] [2023-12-25 09:19:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:48,242 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 [2023-12-25 09:19:48,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:48,243 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) [2023-12-25 09:19:48,252 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 [2023-12-25 09:19:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:48,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:48,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:48,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:48,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:48,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945689896] [2023-12-25 09:19:48,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945689896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:48,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:48,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:48,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923829792] [2023-12-25 09:19:48,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:48,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:48,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:48,342 INFO L87 Difference]: Start difference. First operand 3927 states and 5702 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) [2023-12-25 09:19:48,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:48,386 INFO L93 Difference]: Finished difference Result 7232 states and 10544 transitions. [2023-12-25 09:19:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:48,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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 [2023-12-25 09:19:48,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:48,398 INFO L225 Difference]: With dead ends: 7232 [2023-12-25 09:19:48,398 INFO L226 Difference]: Without dead ends: 3326 [2023-12-25 09:19:48,403 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 [2023-12-25 09:19:48,405 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 66 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:48,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 248 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:48,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2023-12-25 09:19:48,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 3324. [2023-12-25 09:19:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 3323 states have (on average 1.4477881432440565) internal successors, (4811), 3323 states have internal predecessors, (4811), 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) [2023-12-25 09:19:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4811 transitions. [2023-12-25 09:19:48,462 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4811 transitions. Word has length 62 [2023-12-25 09:19:48,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:48,463 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 4811 transitions. [2023-12-25 09:19:48,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) [2023-12-25 09:19:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4811 transitions. [2023-12-25 09:19:48,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 09:19:48,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:48,465 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:19:48,472 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 [2023-12-25 09:19:48,669 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 [2023-12-25 09:19:48,669 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:48,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:48,669 INFO L85 PathProgramCache]: Analyzing trace with hash -666800049, now seen corresponding path program 1 times [2023-12-25 09:19:48,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:48,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044070580] [2023-12-25 09:19:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:48,670 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 [2023-12-25 09:19:48,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:48,671 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) [2023-12-25 09:19:48,672 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 [2023-12-25 09:19:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:48,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:19:48,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:49,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:19:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:49,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:49,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044070580] [2023-12-25 09:19:49,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044070580] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:19:49,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:19:49,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:19:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202390100] [2023-12-25 09:19:49,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:19:49,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:19:49,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:49,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:19:49,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:19:49,569 INFO L87 Difference]: Start difference. First operand 3324 states and 4811 transitions. Second operand has 16 states, 16 states have (on average 7.0) internal successors, (112), 15 states have internal predecessors, (112), 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) [2023-12-25 09:19:54,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:54,097 INFO L93 Difference]: Finished difference Result 24367 states and 34868 transitions. [2023-12-25 09:19:54,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-25 09:19:54,098 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 15 states have internal predecessors, (112), 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 [2023-12-25 09:19:54,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:54,155 INFO L225 Difference]: With dead ends: 24367 [2023-12-25 09:19:54,156 INFO L226 Difference]: Without dead ends: 21149 [2023-12-25 09:19:54,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1196, Invalid=4206, Unknown=0, NotChecked=0, Total=5402 [2023-12-25 09:19:54,171 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 3210 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:54,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3210 Valid, 1935 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 09:19:54,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21149 states. [2023-12-25 09:19:54,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21149 to 3717. [2023-12-25 09:19:54,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 3716 states have (on average 1.4343379978471475) internal successors, (5330), 3716 states have internal predecessors, (5330), 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) [2023-12-25 09:19:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5330 transitions. [2023-12-25 09:19:54,418 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5330 transitions. Word has length 62 [2023-12-25 09:19:54,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:54,418 INFO L495 AbstractCegarLoop]: Abstraction has 3717 states and 5330 transitions. [2023-12-25 09:19:54,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 15 states have internal predecessors, (112), 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) [2023-12-25 09:19:54,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5330 transitions. [2023-12-25 09:19:54,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 09:19:54,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:54,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:19:54,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 09:19:54,629 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 [2023-12-25 09:19:54,630 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:54,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:54,630 INFO L85 PathProgramCache]: Analyzing trace with hash -280460520, now seen corresponding path program 1 times [2023-12-25 09:19:54,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:54,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802921428] [2023-12-25 09:19:54,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:54,631 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 [2023-12-25 09:19:54,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:54,633 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) [2023-12-25 09:19:54,634 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 [2023-12-25 09:19:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:54,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:19:54,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-25 09:19:54,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:54,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:54,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802921428] [2023-12-25 09:19:54,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802921428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:54,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:54,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:19:54,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435192624] [2023-12-25 09:19:54,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:54,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:19:54,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:54,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:19:54,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:54,865 INFO L87 Difference]: Start difference. First operand 3717 states and 5330 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2023-12-25 09:19:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:55,030 INFO L93 Difference]: Finished difference Result 10961 states and 15752 transitions. [2023-12-25 09:19:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:55,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 [2023-12-25 09:19:55,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:55,046 INFO L225 Difference]: With dead ends: 10961 [2023-12-25 09:19:55,046 INFO L226 Difference]: Without dead ends: 7293 [2023-12-25 09:19:55,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:19:55,053 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 491 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:55,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 143 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:19:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7293 states. [2023-12-25 09:19:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7293 to 7291. [2023-12-25 09:19:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7291 states, 7290 states have (on average 1.427434842249657) internal successors, (10406), 7290 states have internal predecessors, (10406), 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) [2023-12-25 09:19:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7291 states to 7291 states and 10406 transitions. [2023-12-25 09:19:55,181 INFO L78 Accepts]: Start accepts. Automaton has 7291 states and 10406 transitions. Word has length 62 [2023-12-25 09:19:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:55,181 INFO L495 AbstractCegarLoop]: Abstraction has 7291 states and 10406 transitions. [2023-12-25 09:19:55,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2023-12-25 09:19:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7291 states and 10406 transitions. [2023-12-25 09:19:55,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 09:19:55,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:55,184 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:19:55,188 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 (12)] Forceful destruction successful, exit code 0 [2023-12-25 09:19:55,387 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 [2023-12-25 09:19:55,388 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:19:55,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:55,388 INFO L85 PathProgramCache]: Analyzing trace with hash -850877101, now seen corresponding path program 1 times [2023-12-25 09:19:55,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:55,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112101658] [2023-12-25 09:19:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:55,389 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 [2023-12-25 09:19:55,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:55,391 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) [2023-12-25 09:19:55,397 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 [2023-12-25 09:19:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:55,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:19:55,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:56,020 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:56,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:19:56,239 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:56,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:56,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112101658] [2023-12-25 09:19:56,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112101658] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:19:56,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:19:56,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:19:56,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352089895] [2023-12-25 09:19:56,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:19:56,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:19:56,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:56,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:19:56,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:19:56,242 INFO L87 Difference]: Start difference. First operand 7291 states and 10406 transitions. Second operand has 16 states, 16 states have (on average 7.25) internal successors, (116), 15 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:02,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:02,275 INFO L93 Difference]: Finished difference Result 46825 states and 65872 transitions. [2023-12-25 09:20:02,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-25 09:20:02,276 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.25) internal successors, (116), 15 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-25 09:20:02,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:02,362 INFO L225 Difference]: With dead ends: 46825 [2023-12-25 09:20:02,362 INFO L226 Difference]: Without dead ends: 39675 [2023-12-25 09:20:02,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4676 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2821, Invalid=10061, Unknown=0, NotChecked=0, Total=12882 [2023-12-25 09:20:02,380 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 2543 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:02,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 2277 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 09:20:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39675 states. [2023-12-25 09:20:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39675 to 8039. [2023-12-25 09:20:02,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8039 states, 8038 states have (on average 1.4172679771087335) internal successors, (11392), 8038 states have internal predecessors, (11392), 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) [2023-12-25 09:20:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8039 states to 8039 states and 11392 transitions. [2023-12-25 09:20:02,694 INFO L78 Accepts]: Start accepts. Automaton has 8039 states and 11392 transitions. Word has length 62 [2023-12-25 09:20:02,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:02,694 INFO L495 AbstractCegarLoop]: Abstraction has 8039 states and 11392 transitions. [2023-12-25 09:20:02,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.25) internal successors, (116), 15 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:02,695 INFO L276 IsEmpty]: Start isEmpty. Operand 8039 states and 11392 transitions. [2023-12-25 09:20:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 09:20:02,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:02,697 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:02,703 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 [2023-12-25 09:20:02,903 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 [2023-12-25 09:20:02,903 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:02,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:02,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1446452374, now seen corresponding path program 1 times [2023-12-25 09:20:02,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:02,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651377047] [2023-12-25 09:20:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:02,904 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 [2023-12-25 09:20:02,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:02,905 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) [2023-12-25 09:20:02,907 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 [2023-12-25 09:20:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:02,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:02,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 09:20:03,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:03,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:03,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651377047] [2023-12-25 09:20:03,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651377047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:03,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:03,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:20:03,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937238342] [2023-12-25 09:20:03,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:03,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:03,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:03,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:03,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:03,123 INFO L87 Difference]: Start difference. First operand 8039 states and 11392 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:03,288 INFO L93 Difference]: Finished difference Result 23860 states and 33855 transitions. [2023-12-25 09:20:03,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:03,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-25 09:20:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:03,320 INFO L225 Difference]: With dead ends: 23860 [2023-12-25 09:20:03,320 INFO L226 Difference]: Without dead ends: 15911 [2023-12-25 09:20:03,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:20:03,336 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 477 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:03,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 151 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:20:03,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15911 states. [2023-12-25 09:20:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15911 to 15909. [2023-12-25 09:20:03,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15909 states, 15908 states have (on average 1.4120568267538345) internal successors, (22463), 15908 states have internal predecessors, (22463), 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) [2023-12-25 09:20:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15909 states to 15909 states and 22463 transitions. [2023-12-25 09:20:03,583 INFO L78 Accepts]: Start accepts. Automaton has 15909 states and 22463 transitions. Word has length 62 [2023-12-25 09:20:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:03,583 INFO L495 AbstractCegarLoop]: Abstraction has 15909 states and 22463 transitions. [2023-12-25 09:20:03,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:03,583 INFO L276 IsEmpty]: Start isEmpty. Operand 15909 states and 22463 transitions. [2023-12-25 09:20:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 09:20:03,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:03,590 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:03,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:03,796 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 [2023-12-25 09:20:03,796 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:03,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1451558991, now seen corresponding path program 1 times [2023-12-25 09:20:03,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:03,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300938898] [2023-12-25 09:20:03,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:03,797 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 [2023-12-25 09:20:03,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:03,799 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) [2023-12-25 09:20:03,803 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 [2023-12-25 09:20:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:03,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:20:03,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:04,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:04,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:04,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300938898] [2023-12-25 09:20:04,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300938898] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:04,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:04,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:20:04,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583668667] [2023-12-25 09:20:04,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:04,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:20:04,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:04,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:20:04,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:20:04,452 INFO L87 Difference]: Start difference. First operand 15909 states and 22463 transitions. Second operand has 16 states, 16 states have (on average 6.75) internal successors, (108), 15 states have internal predecessors, (108), 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) [2023-12-25 09:20:07,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:07,319 INFO L93 Difference]: Finished difference Result 55890 states and 78046 transitions. [2023-12-25 09:20:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-25 09:20:07,320 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.75) internal successors, (108), 15 states have internal predecessors, (108), 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 [2023-12-25 09:20:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:07,375 INFO L225 Difference]: With dead ends: 55890 [2023-12-25 09:20:07,376 INFO L226 Difference]: Without dead ends: 40148 [2023-12-25 09:20:07,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=977, Invalid=3183, Unknown=0, NotChecked=0, Total=4160 [2023-12-25 09:20:07,404 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 2088 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2088 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:07,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2088 Valid, 1589 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:20:07,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40148 states. [2023-12-25 09:20:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40148 to 15795. [2023-12-25 09:20:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15795 states, 15794 states have (on average 1.4061668988223377) internal successors, (22209), 15794 states have internal predecessors, (22209), 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) [2023-12-25 09:20:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 22209 transitions. [2023-12-25 09:20:07,875 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 22209 transitions. Word has length 62 [2023-12-25 09:20:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:07,875 INFO L495 AbstractCegarLoop]: Abstraction has 15795 states and 22209 transitions. [2023-12-25 09:20:07,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.75) internal successors, (108), 15 states have internal predecessors, (108), 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) [2023-12-25 09:20:07,876 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 22209 transitions. [2023-12-25 09:20:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 09:20:07,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:07,878 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:07,884 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 [2023-12-25 09:20:08,081 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 [2023-12-25 09:20:08,082 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:08,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash -875044846, now seen corresponding path program 1 times [2023-12-25 09:20:08,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:08,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738102160] [2023-12-25 09:20:08,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:08,083 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 [2023-12-25 09:20:08,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:08,084 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:08,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 09:20:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:08,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:20:08,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:08,261 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 09:20:08,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:08,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 09:20:08,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:08,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738102160] [2023-12-25 09:20:08,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738102160] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:08,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:08,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 09:20:08,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471149188] [2023-12-25 09:20:08,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:08,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:20:08,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:08,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:20:08,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:20:08,338 INFO L87 Difference]: Start difference. First operand 15795 states and 22209 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:08,525 INFO L93 Difference]: Finished difference Result 51061 states and 71437 transitions. [2023-12-25 09:20:08,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:08,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-25 09:20:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:08,576 INFO L225 Difference]: With dead ends: 51061 [2023-12-25 09:20:08,577 INFO L226 Difference]: Without dead ends: 35433 [2023-12-25 09:20:08,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:20:08,608 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 346 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:08,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 533 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:08,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35433 states. [2023-12-25 09:20:09,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35433 to 35193. [2023-12-25 09:20:09,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35193 states, 35192 states have (on average 1.36661741304842) internal successors, (48094), 35192 states have internal predecessors, (48094), 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) [2023-12-25 09:20:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35193 states to 35193 states and 48094 transitions. [2023-12-25 09:20:09,247 INFO L78 Accepts]: Start accepts. Automaton has 35193 states and 48094 transitions. Word has length 63 [2023-12-25 09:20:09,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:09,247 INFO L495 AbstractCegarLoop]: Abstraction has 35193 states and 48094 transitions. [2023-12-25 09:20:09,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:09,247 INFO L276 IsEmpty]: Start isEmpty. Operand 35193 states and 48094 transitions. [2023-12-25 09:20:09,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 09:20:09,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:09,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:09,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:09,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:09,456 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:09,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:09,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1808848488, now seen corresponding path program 1 times [2023-12-25 09:20:09,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:09,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617215064] [2023-12-25 09:20:09,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:09,457 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 [2023-12-25 09:20:09,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:09,518 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:09,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 09:20:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:09,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:09,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:09,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:09,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:09,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617215064] [2023-12-25 09:20:09,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617215064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:09,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:09,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:09,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678600430] [2023-12-25 09:20:09,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:09,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:09,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:09,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:09,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:09,619 INFO L87 Difference]: Start difference. First operand 35193 states and 48094 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-12-25 09:20:09,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:09,756 INFO L93 Difference]: Finished difference Result 61534 states and 83819 transitions. [2023-12-25 09:20:09,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:09,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-12-25 09:20:09,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:09,803 INFO L225 Difference]: With dead ends: 61534 [2023-12-25 09:20:09,803 INFO L226 Difference]: Without dead ends: 36077 [2023-12-25 09:20:09,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:09,827 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 67 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:09,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 254 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:09,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36077 states. [2023-12-25 09:20:10,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36077 to 33516. [2023-12-25 09:20:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33516 states, 33515 states have (on average 1.3433984782933015) internal successors, (45024), 33515 states have internal predecessors, (45024), 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) [2023-12-25 09:20:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33516 states to 33516 states and 45024 transitions. [2023-12-25 09:20:10,387 INFO L78 Accepts]: Start accepts. Automaton has 33516 states and 45024 transitions. Word has length 63 [2023-12-25 09:20:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:10,387 INFO L495 AbstractCegarLoop]: Abstraction has 33516 states and 45024 transitions. [2023-12-25 09:20:10,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-12-25 09:20:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 33516 states and 45024 transitions. [2023-12-25 09:20:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 09:20:10,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:10,390 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:10,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:10,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:10,591 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:10,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:10,591 INFO L85 PathProgramCache]: Analyzing trace with hash -801985285, now seen corresponding path program 1 times [2023-12-25 09:20:10,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:10,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51518798] [2023-12-25 09:20:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:10,592 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 [2023-12-25 09:20:10,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:10,593 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:10,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 09:20:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:10,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:10,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:10,801 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:10,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:10,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:10,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51518798] [2023-12-25 09:20:10,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51518798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:10,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:10,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:10,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772380520] [2023-12-25 09:20:10,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:10,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:10,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:10,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:10,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:10,802 INFO L87 Difference]: Start difference. First operand 33516 states and 45024 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-12-25 09:20:10,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:10,916 INFO L93 Difference]: Finished difference Result 49625 states and 66172 transitions. [2023-12-25 09:20:10,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:10,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-12-25 09:20:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:10,951 INFO L225 Difference]: With dead ends: 49625 [2023-12-25 09:20:10,951 INFO L226 Difference]: Without dead ends: 28017 [2023-12-25 09:20:10,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:10,975 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 67 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:10,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 261 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28017 states. [2023-12-25 09:20:11,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28017 to 25342. [2023-12-25 09:20:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25342 states, 25341 states have (on average 1.311274219644055) internal successors, (33229), 25341 states have internal predecessors, (33229), 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) [2023-12-25 09:20:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25342 states to 25342 states and 33229 transitions. [2023-12-25 09:20:11,299 INFO L78 Accepts]: Start accepts. Automaton has 25342 states and 33229 transitions. Word has length 63 [2023-12-25 09:20:11,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:11,299 INFO L495 AbstractCegarLoop]: Abstraction has 25342 states and 33229 transitions. [2023-12-25 09:20:11,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-12-25 09:20:11,299 INFO L276 IsEmpty]: Start isEmpty. Operand 25342 states and 33229 transitions. [2023-12-25 09:20:11,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 09:20:11,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:11,301 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:11,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:11,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:11,504 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:11,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:11,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1515736869, now seen corresponding path program 1 times [2023-12-25 09:20:11,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:11,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346327506] [2023-12-25 09:20:11,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:11,505 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 [2023-12-25 09:20:11,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:11,506 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:11,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 09:20:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:11,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:11,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:11,698 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:11,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:11,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:11,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346327506] [2023-12-25 09:20:11,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346327506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:11,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:11,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:11,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873688226] [2023-12-25 09:20:11,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:11,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:11,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:11,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:11,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:11,700 INFO L87 Difference]: Start difference. First operand 25342 states and 33229 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-12-25 09:20:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:11,821 INFO L93 Difference]: Finished difference Result 49307 states and 64621 transitions. [2023-12-25 09:20:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-12-25 09:20:11,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:11,860 INFO L225 Difference]: With dead ends: 49307 [2023-12-25 09:20:11,860 INFO L226 Difference]: Without dead ends: 33498 [2023-12-25 09:20:11,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:11,884 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 62 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:11,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 251 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:11,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33498 states. [2023-12-25 09:20:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33498 to 32366. [2023-12-25 09:20:12,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32366 states, 32365 states have (on average 1.3005716051289973) internal successors, (42093), 32365 states have internal predecessors, (42093), 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) [2023-12-25 09:20:12,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32366 states to 32366 states and 42093 transitions. [2023-12-25 09:20:12,293 INFO L78 Accepts]: Start accepts. Automaton has 32366 states and 42093 transitions. Word has length 63 [2023-12-25 09:20:12,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:12,293 INFO L495 AbstractCegarLoop]: Abstraction has 32366 states and 42093 transitions. [2023-12-25 09:20:12,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-12-25 09:20:12,293 INFO L276 IsEmpty]: Start isEmpty. Operand 32366 states and 42093 transitions. [2023-12-25 09:20:12,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 09:20:12,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:12,295 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:12,298 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 (19)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:12,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:12,496 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:12,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:12,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1537795674, now seen corresponding path program 1 times [2023-12-25 09:20:12,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:12,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583666014] [2023-12-25 09:20:12,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:12,497 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 [2023-12-25 09:20:12,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:12,498 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:12,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 09:20:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:12,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:20:12,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:12,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:12,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:12,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583666014] [2023-12-25 09:20:12,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583666014] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:12,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:12,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:20:12,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887049893] [2023-12-25 09:20:12,754 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:12,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:20:12,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:12,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:20:12,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:20:12,901 INFO L87 Difference]: Start difference. First operand 32366 states and 42093 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:13,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:13,218 INFO L93 Difference]: Finished difference Result 74568 states and 96412 transitions. [2023-12-25 09:20:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:20:13,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-25 09:20:13,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:13,269 INFO L225 Difference]: With dead ends: 74568 [2023-12-25 09:20:13,269 INFO L226 Difference]: Without dead ends: 42292 [2023-12-25 09:20:13,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:20:13,296 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 1063 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:13,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 298 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:20:13,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42292 states. [2023-12-25 09:20:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42292 to 32250. [2023-12-25 09:20:13,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32250 states, 32249 states have (on average 1.274272070451797) internal successors, (41094), 32249 states have internal predecessors, (41094), 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) [2023-12-25 09:20:13,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32250 states to 32250 states and 41094 transitions. [2023-12-25 09:20:13,755 INFO L78 Accepts]: Start accepts. Automaton has 32250 states and 41094 transitions. Word has length 64 [2023-12-25 09:20:13,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:13,755 INFO L495 AbstractCegarLoop]: Abstraction has 32250 states and 41094 transitions. [2023-12-25 09:20:13,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:13,755 INFO L276 IsEmpty]: Start isEmpty. Operand 32250 states and 41094 transitions. [2023-12-25 09:20:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 09:20:13,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:13,757 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:13,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:13,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:13,960 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:13,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1242261041, now seen corresponding path program 1 times [2023-12-25 09:20:13,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:13,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813740692] [2023-12-25 09:20:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:13,961 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 [2023-12-25 09:20:13,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:13,962 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:13,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 09:20:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:14,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:20:14,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:14,157 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:14,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:14,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:14,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813740692] [2023-12-25 09:20:14,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813740692] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:14,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:14,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:20:14,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330814242] [2023-12-25 09:20:14,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:14,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:20:14,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:14,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:20:14,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:20:14,394 INFO L87 Difference]: Start difference. First operand 32250 states and 41094 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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) [2023-12-25 09:20:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:14,686 INFO L93 Difference]: Finished difference Result 71419 states and 90693 transitions. [2023-12-25 09:20:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:20:14,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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 64 [2023-12-25 09:20:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:14,734 INFO L225 Difference]: With dead ends: 71419 [2023-12-25 09:20:14,735 INFO L226 Difference]: Without dead ends: 39196 [2023-12-25 09:20:14,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:20:14,761 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 789 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:14,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 379 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:20:14,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39196 states. [2023-12-25 09:20:15,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39196 to 32969. [2023-12-25 09:20:15,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32969 states, 32968 states have (on average 1.2530939092453288) internal successors, (41312), 32968 states have internal predecessors, (41312), 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) [2023-12-25 09:20:15,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32969 states to 32969 states and 41312 transitions. [2023-12-25 09:20:15,256 INFO L78 Accepts]: Start accepts. Automaton has 32969 states and 41312 transitions. Word has length 64 [2023-12-25 09:20:15,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:15,256 INFO L495 AbstractCegarLoop]: Abstraction has 32969 states and 41312 transitions. [2023-12-25 09:20:15,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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) [2023-12-25 09:20:15,256 INFO L276 IsEmpty]: Start isEmpty. Operand 32969 states and 41312 transitions. [2023-12-25 09:20:15,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 09:20:15,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:15,259 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:15,265 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:15,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:15,462 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:15,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:15,462 INFO L85 PathProgramCache]: Analyzing trace with hash -516796684, now seen corresponding path program 1 times [2023-12-25 09:20:15,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300727785] [2023-12-25 09:20:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:15,463 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 [2023-12-25 09:20:15,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:15,464 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:15,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 09:20:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:15,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:20:15,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:15,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:15,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:15,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300727785] [2023-12-25 09:20:15,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300727785] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:15,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:15,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:20:15,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989096369] [2023-12-25 09:20:15,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:15,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:20:15,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:15,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:20:15,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:20:15,863 INFO L87 Difference]: Start difference. First operand 32969 states and 41312 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:16,231 INFO L93 Difference]: Finished difference Result 85266 states and 106563 transitions. [2023-12-25 09:20:16,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:20:16,231 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-25 09:20:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:16,296 INFO L225 Difference]: With dead ends: 85266 [2023-12-25 09:20:16,296 INFO L226 Difference]: Without dead ends: 52353 [2023-12-25 09:20:16,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:20:16,324 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 679 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:16,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 387 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:20:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52353 states. [2023-12-25 09:20:16,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52353 to 36977. [2023-12-25 09:20:16,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36977 states, 36976 states have (on average 1.2368022501081783) internal successors, (45732), 36976 states have internal predecessors, (45732), 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) [2023-12-25 09:20:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36977 states to 36977 states and 45732 transitions. [2023-12-25 09:20:16,862 INFO L78 Accepts]: Start accepts. Automaton has 36977 states and 45732 transitions. Word has length 64 [2023-12-25 09:20:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:16,862 INFO L495 AbstractCegarLoop]: Abstraction has 36977 states and 45732 transitions. [2023-12-25 09:20:16,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 36977 states and 45732 transitions. [2023-12-25 09:20:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:20:16,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:16,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:16,871 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 (22)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:17,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:17,069 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:17,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:17,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1776221123, now seen corresponding path program 1 times [2023-12-25 09:20:17,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:17,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283123483] [2023-12-25 09:20:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:17,069 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 [2023-12-25 09:20:17,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:17,070 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:17,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 09:20:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:17,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:17,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 09:20:17,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:17,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:17,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283123483] [2023-12-25 09:20:17,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283123483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:17,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:17,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:17,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479533306] [2023-12-25 09:20:17,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:17,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:17,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:17,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:17,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:17,493 INFO L87 Difference]: Start difference. First operand 36977 states and 45732 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2023-12-25 09:20:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:17,647 INFO L93 Difference]: Finished difference Result 64394 states and 80228 transitions. [2023-12-25 09:20:17,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:17,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 66 [2023-12-25 09:20:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:17,715 INFO L225 Difference]: With dead ends: 64394 [2023-12-25 09:20:17,715 INFO L226 Difference]: Without dead ends: 51316 [2023-12-25 09:20:17,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:17,738 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 264 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:17,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 459 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:17,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51316 states. [2023-12-25 09:20:18,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51316 to 44621. [2023-12-25 09:20:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44621 states, 44620 states have (on average 1.2284625728372927) internal successors, (54814), 44620 states have internal predecessors, (54814), 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) [2023-12-25 09:20:18,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44621 states to 44621 states and 54814 transitions. [2023-12-25 09:20:18,481 INFO L78 Accepts]: Start accepts. Automaton has 44621 states and 54814 transitions. Word has length 66 [2023-12-25 09:20:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:18,481 INFO L495 AbstractCegarLoop]: Abstraction has 44621 states and 54814 transitions. [2023-12-25 09:20:18,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2023-12-25 09:20:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 44621 states and 54814 transitions. [2023-12-25 09:20:18,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:20:18,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:18,484 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:18,488 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 (23)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:18,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:18,687 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:18,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2143216620, now seen corresponding path program 1 times [2023-12-25 09:20:18,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:18,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182457721] [2023-12-25 09:20:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:18,688 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 [2023-12-25 09:20:18,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:18,690 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:18,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 09:20:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:18,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:18,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 09:20:18,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:18,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:18,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182457721] [2023-12-25 09:20:18,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182457721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:18,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:18,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:18,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010273006] [2023-12-25 09:20:18,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:18,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:18,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:18,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:18,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:18,926 INFO L87 Difference]: Start difference. First operand 44621 states and 54814 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2023-12-25 09:20:19,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:19,110 INFO L93 Difference]: Finished difference Result 77486 states and 96193 transitions. [2023-12-25 09:20:19,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:19,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 66 [2023-12-25 09:20:19,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:19,180 INFO L225 Difference]: With dead ends: 77486 [2023-12-25 09:20:19,180 INFO L226 Difference]: Without dead ends: 55393 [2023-12-25 09:20:19,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:19,207 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 266 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:19,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 454 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:19,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55393 states. [2023-12-25 09:20:19,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55393 to 46954. [2023-12-25 09:20:19,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46954 states, 46953 states have (on average 1.2123825953613188) internal successors, (56925), 46953 states have internal predecessors, (56925), 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) [2023-12-25 09:20:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46954 states to 46954 states and 56925 transitions. [2023-12-25 09:20:19,895 INFO L78 Accepts]: Start accepts. Automaton has 46954 states and 56925 transitions. Word has length 66 [2023-12-25 09:20:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:19,895 INFO L495 AbstractCegarLoop]: Abstraction has 46954 states and 56925 transitions. [2023-12-25 09:20:19,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2023-12-25 09:20:19,895 INFO L276 IsEmpty]: Start isEmpty. Operand 46954 states and 56925 transitions. [2023-12-25 09:20:19,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:20:19,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:19,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:19,900 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 (24)] Ended with exit code 0 [2023-12-25 09:20:20,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:20,098 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:20,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:20,099 INFO L85 PathProgramCache]: Analyzing trace with hash -973353882, now seen corresponding path program 1 times [2023-12-25 09:20:20,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:20,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319808272] [2023-12-25 09:20:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:20,099 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 [2023-12-25 09:20:20,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:20,100 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:20,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 09:20:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:20,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:20,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:20:20,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:20,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:20,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319808272] [2023-12-25 09:20:20,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319808272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:20,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:20,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:20,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695223208] [2023-12-25 09:20:20,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:20,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:20,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:20,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:20,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:20,408 INFO L87 Difference]: Start difference. First operand 46954 states and 56925 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2023-12-25 09:20:20,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:20,626 INFO L93 Difference]: Finished difference Result 68401 states and 83891 transitions. [2023-12-25 09:20:20,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:20,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 66 [2023-12-25 09:20:20,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:20,716 INFO L225 Difference]: With dead ends: 68401 [2023-12-25 09:20:20,716 INFO L226 Difference]: Without dead ends: 59110 [2023-12-25 09:20:20,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:20,746 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 214 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:20,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 515 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:20,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59110 states. [2023-12-25 09:20:21,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59110 to 51047. [2023-12-25 09:20:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51047 states, 51046 states have (on average 1.2087137092034634) internal successors, (61700), 51046 states have internal predecessors, (61700), 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) [2023-12-25 09:20:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51047 states to 51047 states and 61700 transitions. [2023-12-25 09:20:21,676 INFO L78 Accepts]: Start accepts. Automaton has 51047 states and 61700 transitions. Word has length 66 [2023-12-25 09:20:21,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:21,676 INFO L495 AbstractCegarLoop]: Abstraction has 51047 states and 61700 transitions. [2023-12-25 09:20:21,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2023-12-25 09:20:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 51047 states and 61700 transitions. [2023-12-25 09:20:21,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 09:20:21,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:21,679 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:21,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:21,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:21,882 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:21,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:21,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1577076904, now seen corresponding path program 1 times [2023-12-25 09:20:21,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:21,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315966181] [2023-12-25 09:20:21,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:21,883 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 [2023-12-25 09:20:21,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:21,884 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:21,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 09:20:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:21,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:21,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:21,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:21,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:21,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315966181] [2023-12-25 09:20:21,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315966181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:21,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:21,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:21,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151446302] [2023-12-25 09:20:21,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:21,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:21,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:21,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:21,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:21,970 INFO L87 Difference]: Start difference. First operand 51047 states and 61700 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-12-25 09:20:22,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:22,106 INFO L93 Difference]: Finished difference Result 67308 states and 81529 transitions. [2023-12-25 09:20:22,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:22,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2023-12-25 09:20:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:22,159 INFO L225 Difference]: With dead ends: 67308 [2023-12-25 09:20:22,160 INFO L226 Difference]: Without dead ends: 47834 [2023-12-25 09:20:22,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:22,184 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 53 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:22,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 262 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:22,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47834 states. [2023-12-25 09:20:22,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47834 to 47832. [2023-12-25 09:20:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47832 states, 47831 states have (on average 1.1996194936338358) internal successors, (57379), 47831 states have internal predecessors, (57379), 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) [2023-12-25 09:20:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47832 states to 47832 states and 57379 transitions. [2023-12-25 09:20:22,991 INFO L78 Accepts]: Start accepts. Automaton has 47832 states and 57379 transitions. Word has length 71 [2023-12-25 09:20:22,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:22,991 INFO L495 AbstractCegarLoop]: Abstraction has 47832 states and 57379 transitions. [2023-12-25 09:20:22,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-12-25 09:20:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 47832 states and 57379 transitions. [2023-12-25 09:20:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 09:20:22,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:22,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:23,000 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 (26)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:23,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:23,197 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:23,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:23,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1594549393, now seen corresponding path program 1 times [2023-12-25 09:20:23,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:23,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819854227] [2023-12-25 09:20:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:23,198 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 [2023-12-25 09:20:23,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:23,199 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:23,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 09:20:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:23,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:23,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:23,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:23,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:23,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819854227] [2023-12-25 09:20:23,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819854227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:23,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:23,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:23,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890823285] [2023-12-25 09:20:23,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:23,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:23,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:23,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:23,310 INFO L87 Difference]: Start difference. First operand 47832 states and 57379 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-12-25 09:20:23,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:23,423 INFO L93 Difference]: Finished difference Result 56639 states and 67699 transitions. [2023-12-25 09:20:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:23,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2023-12-25 09:20:23,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:23,459 INFO L225 Difference]: With dead ends: 56639 [2023-12-25 09:20:23,460 INFO L226 Difference]: Without dead ends: 37254 [2023-12-25 09:20:23,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:23,478 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 53 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:23,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 238 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:23,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37254 states. [2023-12-25 09:20:23,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37254 to 37252. [2023-12-25 09:20:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37252 states, 37251 states have (on average 1.1828675740248584) internal successors, (44063), 37251 states have internal predecessors, (44063), 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) [2023-12-25 09:20:23,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37252 states to 37252 states and 44063 transitions. [2023-12-25 09:20:23,987 INFO L78 Accepts]: Start accepts. Automaton has 37252 states and 44063 transitions. Word has length 71 [2023-12-25 09:20:23,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:23,987 INFO L495 AbstractCegarLoop]: Abstraction has 37252 states and 44063 transitions. [2023-12-25 09:20:23,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-12-25 09:20:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 37252 states and 44063 transitions. [2023-12-25 09:20:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 09:20:23,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:23,990 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:23,992 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 (27)] Ended with exit code 0 [2023-12-25 09:20:24,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:24,191 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:24,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:24,191 INFO L85 PathProgramCache]: Analyzing trace with hash 383821522, now seen corresponding path program 1 times [2023-12-25 09:20:24,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:24,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751611715] [2023-12-25 09:20:24,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:24,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:24,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:24,192 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:24,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 09:20:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:24,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 09:20:24,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:25,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:26,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:26,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751611715] [2023-12-25 09:20:26,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751611715] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:26,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:26,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 35 [2023-12-25 09:20:26,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346018663] [2023-12-25 09:20:26,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:26,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-25 09:20:26,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:26,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-25 09:20:26,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2023-12-25 09:20:26,569 INFO L87 Difference]: Start difference. First operand 37252 states and 44063 transitions. Second operand has 35 states, 35 states have (on average 3.857142857142857) internal successors, (135), 35 states have internal predecessors, (135), 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) [2023-12-25 09:20:46,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:46,784 INFO L93 Difference]: Finished difference Result 161258 states and 189886 transitions. [2023-12-25 09:20:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2023-12-25 09:20:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.857142857142857) internal successors, (135), 35 states have internal predecessors, (135), 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 72 [2023-12-25 09:20:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:46,922 INFO L225 Difference]: With dead ends: 161258 [2023-12-25 09:20:46,922 INFO L226 Difference]: Without dead ends: 126593 [2023-12-25 09:20:46,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25822 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=8956, Invalid=50824, Unknown=0, NotChecked=0, Total=59780 [2023-12-25 09:20:46,950 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 6384 mSDsluCounter, 6697 mSDsCounter, 0 mSdLazyCounter, 4799 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6384 SdHoareTripleChecker+Valid, 7114 SdHoareTripleChecker+Invalid, 4988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 4799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:46,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6384 Valid, 7114 Invalid, 4988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 4799 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-25 09:20:47,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126593 states. [2023-12-25 09:20:47,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126593 to 45959. [2023-12-25 09:20:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45959 states, 45958 states have (on average 1.1778580443013187) internal successors, (54132), 45958 states have internal predecessors, (54132), 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) [2023-12-25 09:20:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45959 states to 45959 states and 54132 transitions. [2023-12-25 09:20:47,703 INFO L78 Accepts]: Start accepts. Automaton has 45959 states and 54132 transitions. Word has length 72 [2023-12-25 09:20:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:47,703 INFO L495 AbstractCegarLoop]: Abstraction has 45959 states and 54132 transitions. [2023-12-25 09:20:47,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.857142857142857) internal successors, (135), 35 states have internal predecessors, (135), 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) [2023-12-25 09:20:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 45959 states and 54132 transitions. [2023-12-25 09:20:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:20:47,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:47,715 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:47,717 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 (28)] Ended with exit code 0 [2023-12-25 09:20:47,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:47,915 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:47,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:47,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1424208836, now seen corresponding path program 1 times [2023-12-25 09:20:47,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:47,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766752112] [2023-12-25 09:20:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:47,916 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 [2023-12-25 09:20:47,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:47,917 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:47,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 09:20:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:47,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:20:47,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 48 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 09:20:48,619 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 48 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 09:20:48,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:48,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766752112] [2023-12-25 09:20:48,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766752112] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:48,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:48,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 09:20:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167120355] [2023-12-25 09:20:48,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:48,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:20:48,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:48,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:20:48,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:20:48,838 INFO L87 Difference]: Start difference. First operand 45959 states and 54132 transitions. Second operand has 18 states, 18 states have (on average 11.11111111111111) internal successors, (200), 17 states have internal predecessors, (200), 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) [2023-12-25 09:20:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:52,335 INFO L93 Difference]: Finished difference Result 92498 states and 108019 transitions. [2023-12-25 09:20:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 09:20:52,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.11111111111111) internal successors, (200), 17 states have internal predecessors, (200), 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 118 [2023-12-25 09:20:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:52,422 INFO L225 Difference]: With dead ends: 92498 [2023-12-25 09:20:52,422 INFO L226 Difference]: Without dead ends: 74264 [2023-12-25 09:20:52,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1019, Invalid=2763, Unknown=0, NotChecked=0, Total=3782 [2023-12-25 09:20:52,449 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1669 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:52,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1669 Valid, 1904 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 09:20:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74264 states. [2023-12-25 09:20:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74264 to 38251. [2023-12-25 09:20:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38251 states, 38250 states have (on average 1.1729934640522877) internal successors, (44867), 38250 states have internal predecessors, (44867), 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) [2023-12-25 09:20:52,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38251 states to 38251 states and 44867 transitions. [2023-12-25 09:20:52,989 INFO L78 Accepts]: Start accepts. Automaton has 38251 states and 44867 transitions. Word has length 118 [2023-12-25 09:20:52,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:52,989 INFO L495 AbstractCegarLoop]: Abstraction has 38251 states and 44867 transitions. [2023-12-25 09:20:52,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.11111111111111) internal successors, (200), 17 states have internal predecessors, (200), 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) [2023-12-25 09:20:52,989 INFO L276 IsEmpty]: Start isEmpty. Operand 38251 states and 44867 transitions. [2023-12-25 09:20:52,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:20:52,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:52,999 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:53,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:53,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:53,199 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:20:53,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash -787646921, now seen corresponding path program 1 times [2023-12-25 09:20:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:53,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581481389] [2023-12-25 09:20:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:53,200 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 [2023-12-25 09:20:53,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:53,201 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:20:53,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 09:20:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:53,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:20:53,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:54,105 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 29 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:54,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 40 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:54,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:54,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581481389] [2023-12-25 09:20:54,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581481389] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:54,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:54,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2023-12-25 09:20:54,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734831451] [2023-12-25 09:20:54,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:54,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-25 09:20:54,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:54,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-25 09:20:54,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:20:54,420 INFO L87 Difference]: Start difference. First operand 38251 states and 44867 transitions. Second operand has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 23 states have internal predecessors, (222), 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) [2023-12-25 09:20:59,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:59,899 INFO L93 Difference]: Finished difference Result 97872 states and 113836 transitions. [2023-12-25 09:20:59,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-12-25 09:20:59,899 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 23 states have internal predecessors, (222), 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 118 [2023-12-25 09:20:59,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:59,994 INFO L225 Difference]: With dead ends: 97872 [2023-12-25 09:20:59,994 INFO L226 Difference]: Without dead ends: 88959 [2023-12-25 09:21:00,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4149 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2096, Invalid=10786, Unknown=0, NotChecked=0, Total=12882 [2023-12-25 09:21:00,023 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 2820 mSDsluCounter, 6765 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2820 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:00,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2820 Valid, 7133 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:21:00,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88959 states. [2023-12-25 09:21:00,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88959 to 57159. [2023-12-25 09:21:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57159 states, 57158 states have (on average 1.1660484971482556) internal successors, (66649), 57158 states have internal predecessors, (66649), 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) [2023-12-25 09:21:00,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57159 states to 57159 states and 66649 transitions. [2023-12-25 09:21:00,716 INFO L78 Accepts]: Start accepts. Automaton has 57159 states and 66649 transitions. Word has length 118 [2023-12-25 09:21:00,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:00,716 INFO L495 AbstractCegarLoop]: Abstraction has 57159 states and 66649 transitions. [2023-12-25 09:21:00,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 23 states have internal predecessors, (222), 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) [2023-12-25 09:21:00,717 INFO L276 IsEmpty]: Start isEmpty. Operand 57159 states and 66649 transitions. [2023-12-25 09:21:00,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:21:00,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:00,726 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:00,729 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:00,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:00,927 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:00,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:00,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1008162051, now seen corresponding path program 2 times [2023-12-25 09:21:00,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:00,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987043808] [2023-12-25 09:21:00,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 09:21:00,928 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 [2023-12-25 09:21:00,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:00,929 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:00,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 09:21:01,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 09:21:01,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 09:21:01,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 09:21:01,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 31 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:01,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:01,921 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 40 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:01,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:01,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987043808] [2023-12-25 09:21:01,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987043808] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:01,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:01,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2023-12-25 09:21:01,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174604514] [2023-12-25 09:21:01,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:01,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 09:21:01,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:01,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 09:21:01,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2023-12-25 09:21:01,922 INFO L87 Difference]: Start difference. First operand 57159 states and 66649 transitions. Second operand has 21 states, 21 states have (on average 10.380952380952381) internal successors, (218), 21 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:03,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:03,624 INFO L93 Difference]: Finished difference Result 102240 states and 118796 transitions. [2023-12-25 09:21:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-25 09:21:03,625 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.380952380952381) internal successors, (218), 21 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-25 09:21:03,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:03,717 INFO L225 Difference]: With dead ends: 102240 [2023-12-25 09:21:03,717 INFO L226 Difference]: Without dead ends: 79773 [2023-12-25 09:21:03,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=536, Invalid=2326, Unknown=0, NotChecked=0, Total=2862 [2023-12-25 09:21:03,746 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1960 mSDsluCounter, 4732 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1960 SdHoareTripleChecker+Valid, 5117 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:03,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1960 Valid, 5117 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:21:03,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79773 states. [2023-12-25 09:21:04,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79773 to 63113. [2023-12-25 09:21:04,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63113 states, 63112 states have (on average 1.163502978831284) internal successors, (73431), 63112 states have internal predecessors, (73431), 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) [2023-12-25 09:21:04,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63113 states to 63113 states and 73431 transitions. [2023-12-25 09:21:04,492 INFO L78 Accepts]: Start accepts. Automaton has 63113 states and 73431 transitions. Word has length 118 [2023-12-25 09:21:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:04,493 INFO L495 AbstractCegarLoop]: Abstraction has 63113 states and 73431 transitions. [2023-12-25 09:21:04,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.380952380952381) internal successors, (218), 21 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand 63113 states and 73431 transitions. [2023-12-25 09:21:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:21:04,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:04,504 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:04,506 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:04,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:04,705 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:04,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:04,705 INFO L85 PathProgramCache]: Analyzing trace with hash -438312218, now seen corresponding path program 1 times [2023-12-25 09:21:04,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:04,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185703830] [2023-12-25 09:21:04,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:04,706 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 [2023-12-25 09:21:04,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:04,707 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:04,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-25 09:21:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:05,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:21:05,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 09:21:05,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 62 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 09:21:05,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:05,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185703830] [2023-12-25 09:21:05,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185703830] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:05,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:05,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2023-12-25 09:21:05,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637935125] [2023-12-25 09:21:05,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:05,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-25 09:21:05,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:05,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-25 09:21:05,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:21:05,806 INFO L87 Difference]: Start difference. First operand 63113 states and 73431 transitions. Second operand has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 23 states have internal predecessors, (211), 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) [2023-12-25 09:21:08,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:08,592 INFO L93 Difference]: Finished difference Result 147568 states and 171457 transitions. [2023-12-25 09:21:08,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-25 09:21:08,593 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 23 states have internal predecessors, (211), 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 118 [2023-12-25 09:21:08,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:08,747 INFO L225 Difference]: With dead ends: 147568 [2023-12-25 09:21:08,747 INFO L226 Difference]: Without dead ends: 128726 [2023-12-25 09:21:08,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1097 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=912, Invalid=3510, Unknown=0, NotChecked=0, Total=4422 [2023-12-25 09:21:08,776 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 2137 mSDsluCounter, 4468 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 4836 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:08,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 4836 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:21:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128726 states. [2023-12-25 09:21:09,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128726 to 87617. [2023-12-25 09:21:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87617 states, 87616 states have (on average 1.1646160518626736) internal successors, (102039), 87616 states have internal predecessors, (102039), 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) [2023-12-25 09:21:10,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87617 states to 87617 states and 102039 transitions. [2023-12-25 09:21:10,003 INFO L78 Accepts]: Start accepts. Automaton has 87617 states and 102039 transitions. Word has length 118 [2023-12-25 09:21:10,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:10,003 INFO L495 AbstractCegarLoop]: Abstraction has 87617 states and 102039 transitions. [2023-12-25 09:21:10,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 23 states have internal predecessors, (211), 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) [2023-12-25 09:21:10,004 INFO L276 IsEmpty]: Start isEmpty. Operand 87617 states and 102039 transitions. [2023-12-25 09:21:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:21:10,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:10,013 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:10,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:10,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:10,215 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:10,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:10,216 INFO L85 PathProgramCache]: Analyzing trace with hash 323758244, now seen corresponding path program 1 times [2023-12-25 09:21:10,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:10,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035038819] [2023-12-25 09:21:10,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:10,216 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 [2023-12-25 09:21:10,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:10,217 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:10,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-25 09:21:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:10,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:10,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 09:21:10,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 09:21:11,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:11,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035038819] [2023-12-25 09:21:11,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035038819] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:11,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:11,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 09:21:11,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018860238] [2023-12-25 09:21:11,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:11,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:21:11,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:11,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:21:11,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:21:11,180 INFO L87 Difference]: Start difference. First operand 87617 states and 102039 transitions. Second operand has 18 states, 18 states have (on average 10.222222222222221) internal successors, (184), 17 states have internal predecessors, (184), 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) [2023-12-25 09:21:13,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:13,862 INFO L93 Difference]: Finished difference Result 153583 states and 178477 transitions. [2023-12-25 09:21:13,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-25 09:21:13,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.222222222222221) internal successors, (184), 17 states have internal predecessors, (184), 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 118 [2023-12-25 09:21:13,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:14,087 INFO L225 Difference]: With dead ends: 153583 [2023-12-25 09:21:14,087 INFO L226 Difference]: Without dead ends: 95812 [2023-12-25 09:21:14,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=734, Invalid=2022, Unknown=0, NotChecked=0, Total=2756 [2023-12-25 09:21:14,120 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1393 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:14,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 1531 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:21:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95812 states. [2023-12-25 09:21:14,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95812 to 67846. [2023-12-25 09:21:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67846 states, 67845 states have (on average 1.156990198246002) internal successors, (78496), 67845 states have internal predecessors, (78496), 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) [2023-12-25 09:21:14,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67846 states to 67846 states and 78496 transitions. [2023-12-25 09:21:14,965 INFO L78 Accepts]: Start accepts. Automaton has 67846 states and 78496 transitions. Word has length 118 [2023-12-25 09:21:14,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:14,965 INFO L495 AbstractCegarLoop]: Abstraction has 67846 states and 78496 transitions. [2023-12-25 09:21:14,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.222222222222221) internal successors, (184), 17 states have internal predecessors, (184), 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) [2023-12-25 09:21:14,965 INFO L276 IsEmpty]: Start isEmpty. Operand 67846 states and 78496 transitions. [2023-12-25 09:21:14,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:21:14,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:14,974 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:14,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:15,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:15,174 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:15,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:15,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1386308922, now seen corresponding path program 2 times [2023-12-25 09:21:15,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:15,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588772849] [2023-12-25 09:21:15,176 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 09:21:15,176 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 [2023-12-25 09:21:15,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:15,177 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:15,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-25 09:21:15,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 09:21:15,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 09:21:15,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:21:15,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 09:21:16,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 62 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 09:21:16,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:16,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588772849] [2023-12-25 09:21:16,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588772849] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:16,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:16,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2023-12-25 09:21:16,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700436364] [2023-12-25 09:21:16,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:16,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-25 09:21:16,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:16,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-25 09:21:16,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:21:16,299 INFO L87 Difference]: Start difference. First operand 67846 states and 78496 transitions. Second operand has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 23 states have internal predecessors, (211), 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) [2023-12-25 09:21:19,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:19,121 INFO L93 Difference]: Finished difference Result 144675 states and 166960 transitions. [2023-12-25 09:21:19,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 09:21:19,122 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 23 states have internal predecessors, (211), 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 118 [2023-12-25 09:21:19,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:19,396 INFO L225 Difference]: With dead ends: 144675 [2023-12-25 09:21:19,396 INFO L226 Difference]: Without dead ends: 114354 [2023-12-25 09:21:19,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=892, Invalid=3398, Unknown=0, NotChecked=0, Total=4290 [2023-12-25 09:21:19,424 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 2310 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 3882 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:19,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 3882 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:21:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114354 states. [2023-12-25 09:21:20,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114354 to 77464. [2023-12-25 09:21:20,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77464 states, 77463 states have (on average 1.155532318655358) internal successors, (89511), 77463 states have internal predecessors, (89511), 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) [2023-12-25 09:21:20,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77464 states to 77464 states and 89511 transitions. [2023-12-25 09:21:20,606 INFO L78 Accepts]: Start accepts. Automaton has 77464 states and 89511 transitions. Word has length 118 [2023-12-25 09:21:20,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:20,606 INFO L495 AbstractCegarLoop]: Abstraction has 77464 states and 89511 transitions. [2023-12-25 09:21:20,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 23 states have internal predecessors, (211), 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) [2023-12-25 09:21:20,606 INFO L276 IsEmpty]: Start isEmpty. Operand 77464 states and 89511 transitions. [2023-12-25 09:21:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:21:20,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:20,614 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:20,616 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 (34)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:20,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:20,814 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:20,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:20,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1014721764, now seen corresponding path program 1 times [2023-12-25 09:21:20,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:20,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376393015] [2023-12-25 09:21:20,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:20,815 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 [2023-12-25 09:21:20,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:20,816 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:20,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-25 09:21:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:20,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:21:20,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:21,822 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 27 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:21,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:22,201 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 40 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:22,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:22,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376393015] [2023-12-25 09:21:22,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376393015] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:22,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:22,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2023-12-25 09:21:22,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254074400] [2023-12-25 09:21:22,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:22,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-25 09:21:22,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:22,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-25 09:21:22,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:21:22,202 INFO L87 Difference]: Start difference. First operand 77464 states and 89511 transitions. Second operand has 23 states, 23 states have (on average 9.695652173913043) internal successors, (223), 23 states have internal predecessors, (223), 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) [2023-12-25 09:21:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:26,463 INFO L93 Difference]: Finished difference Result 210828 states and 241555 transitions. [2023-12-25 09:21:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-25 09:21:26,464 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.695652173913043) internal successors, (223), 23 states have internal predecessors, (223), 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 118 [2023-12-25 09:21:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:26,686 INFO L225 Difference]: With dead ends: 210828 [2023-12-25 09:21:26,686 INFO L226 Difference]: Without dead ends: 176039 [2023-12-25 09:21:26,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2149 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1538, Invalid=5944, Unknown=0, NotChecked=0, Total=7482 [2023-12-25 09:21:26,734 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 2196 mSDsluCounter, 5554 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 5951 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:26,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 5951 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:21:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176039 states. [2023-12-25 09:21:28,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176039 to 120201. [2023-12-25 09:21:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120201 states, 120200 states have (on average 1.146738768718802) internal successors, (137838), 120200 states have internal predecessors, (137838), 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) [2023-12-25 09:21:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120201 states to 120201 states and 137838 transitions. [2023-12-25 09:21:28,538 INFO L78 Accepts]: Start accepts. Automaton has 120201 states and 137838 transitions. Word has length 118 [2023-12-25 09:21:28,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:28,539 INFO L495 AbstractCegarLoop]: Abstraction has 120201 states and 137838 transitions. [2023-12-25 09:21:28,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.695652173913043) internal successors, (223), 23 states have internal predecessors, (223), 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) [2023-12-25 09:21:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 120201 states and 137838 transitions. [2023-12-25 09:21:28,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:21:28,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:28,547 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:28,549 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 (35)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:28,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:28,749 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:28,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:28,749 INFO L85 PathProgramCache]: Analyzing trace with hash -136855640, now seen corresponding path program 2 times [2023-12-25 09:21:28,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:28,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333531570] [2023-12-25 09:21:28,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 09:21:28,750 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 [2023-12-25 09:21:28,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:28,751 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:28,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-25 09:21:28,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 09:21:28,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 09:21:28,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:21:28,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:29,860 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 27 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:29,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 40 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:30,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:30,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333531570] [2023-12-25 09:21:30,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333531570] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:30,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:30,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2023-12-25 09:21:30,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543874349] [2023-12-25 09:21:30,213 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:30,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-25 09:21:30,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-25 09:21:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:21:30,214 INFO L87 Difference]: Start difference. First operand 120201 states and 137838 transitions. Second operand has 23 states, 23 states have (on average 9.695652173913043) internal successors, (223), 23 states have internal predecessors, (223), 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) [2023-12-25 09:21:34,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:34,797 INFO L93 Difference]: Finished difference Result 259285 states and 295508 transitions. [2023-12-25 09:21:34,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-25 09:21:34,797 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.695652173913043) internal successors, (223), 23 states have internal predecessors, (223), 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 118 [2023-12-25 09:21:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:34,995 INFO L225 Difference]: With dead ends: 259285 [2023-12-25 09:21:34,996 INFO L226 Difference]: Without dead ends: 182249 [2023-12-25 09:21:35,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2028 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1482, Invalid=5658, Unknown=0, NotChecked=0, Total=7140 [2023-12-25 09:21:35,061 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 2178 mSDsluCounter, 5084 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 5454 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:35,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 5454 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 09:21:35,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182249 states. [2023-12-25 09:21:36,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182249 to 128391. [2023-12-25 09:21:36,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128391 states, 128390 states have (on average 1.14184126489602) internal successors, (146601), 128390 states have internal predecessors, (146601), 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) [2023-12-25 09:21:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128391 states to 128391 states and 146601 transitions. [2023-12-25 09:21:37,149 INFO L78 Accepts]: Start accepts. Automaton has 128391 states and 146601 transitions. Word has length 118 [2023-12-25 09:21:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:37,149 INFO L495 AbstractCegarLoop]: Abstraction has 128391 states and 146601 transitions. [2023-12-25 09:21:37,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.695652173913043) internal successors, (223), 23 states have internal predecessors, (223), 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) [2023-12-25 09:21:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 128391 states and 146601 transitions. [2023-12-25 09:21:37,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 09:21:37,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:37,158 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:37,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:37,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:37,362 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:37,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:37,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2057090917, now seen corresponding path program 1 times [2023-12-25 09:21:37,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:37,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521643730] [2023-12-25 09:21:37,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:37,363 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 [2023-12-25 09:21:37,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:37,365 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:37,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-25 09:21:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:37,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:37,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 09:21:37,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:38,051 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 09:21:38,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:38,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521643730] [2023-12-25 09:21:38,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521643730] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:38,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:38,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2023-12-25 09:21:38,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699760575] [2023-12-25 09:21:38,052 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:38,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 09:21:38,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:38,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 09:21:38,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:21:38,053 INFO L87 Difference]: Start difference. First operand 128391 states and 146601 transitions. Second operand has 17 states, 17 states have (on average 9.117647058823529) internal successors, (155), 17 states have internal predecessors, (155), 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) [2023-12-25 09:21:39,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:39,225 INFO L93 Difference]: Finished difference Result 180818 states and 207083 transitions. [2023-12-25 09:21:39,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 09:21:39,226 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.117647058823529) internal successors, (155), 17 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-25 09:21:39,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:39,368 INFO L225 Difference]: With dead ends: 180818 [2023-12-25 09:21:39,369 INFO L226 Difference]: Without dead ends: 131766 [2023-12-25 09:21:39,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2023-12-25 09:21:39,416 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1191 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:39,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 2241 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:21:39,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131766 states. [2023-12-25 09:21:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131766 to 125995. [2023-12-25 09:21:40,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125995 states, 125994 states have (on average 1.141855961394987) internal successors, (143867), 125994 states have internal predecessors, (143867), 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) [2023-12-25 09:21:41,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125995 states to 125995 states and 143867 transitions. [2023-12-25 09:21:41,055 INFO L78 Accepts]: Start accepts. Automaton has 125995 states and 143867 transitions. Word has length 119 [2023-12-25 09:21:41,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:41,056 INFO L495 AbstractCegarLoop]: Abstraction has 125995 states and 143867 transitions. [2023-12-25 09:21:41,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.117647058823529) internal successors, (155), 17 states have internal predecessors, (155), 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) [2023-12-25 09:21:41,056 INFO L276 IsEmpty]: Start isEmpty. Operand 125995 states and 143867 transitions. [2023-12-25 09:21:41,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 09:21:41,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:41,066 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:41,069 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 (37)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:41,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:41,270 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:41,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:41,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1864460538, now seen corresponding path program 1 times [2023-12-25 09:21:41,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:41,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095953672] [2023-12-25 09:21:41,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:41,270 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 [2023-12-25 09:21:41,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:41,271 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:41,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-25 09:21:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:41,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:41,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 09:21:41,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 09:21:42,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095953672] [2023-12-25 09:21:42,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095953672] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:42,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2023-12-25 09:21:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638556754] [2023-12-25 09:21:42,064 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:42,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:21:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:42,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:21:42,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:21:42,066 INFO L87 Difference]: Start difference. First operand 125995 states and 143867 transitions. Second operand has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 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) [2023-12-25 09:21:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:43,593 INFO L93 Difference]: Finished difference Result 200227 states and 228907 transitions. [2023-12-25 09:21:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 09:21:43,593 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-25 09:21:43,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:43,790 INFO L225 Difference]: With dead ends: 200227 [2023-12-25 09:21:43,791 INFO L226 Difference]: Without dead ends: 173955 [2023-12-25 09:21:43,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=274, Invalid=782, Unknown=0, NotChecked=0, Total=1056 [2023-12-25 09:21:43,834 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1241 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:43,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 1543 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:21:43,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173955 states. [2023-12-25 09:21:45,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173955 to 128573. [2023-12-25 09:21:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128573 states, 128572 states have (on average 1.1395638241607815) internal successors, (146516), 128572 states have internal predecessors, (146516), 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) [2023-12-25 09:21:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128573 states to 128573 states and 146516 transitions. [2023-12-25 09:21:45,629 INFO L78 Accepts]: Start accepts. Automaton has 128573 states and 146516 transitions. Word has length 119 [2023-12-25 09:21:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:45,629 INFO L495 AbstractCegarLoop]: Abstraction has 128573 states and 146516 transitions. [2023-12-25 09:21:45,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 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) [2023-12-25 09:21:45,629 INFO L276 IsEmpty]: Start isEmpty. Operand 128573 states and 146516 transitions. [2023-12-25 09:21:45,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 09:21:45,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:45,635 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:45,637 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 (38)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:45,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:45,835 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:45,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:45,836 INFO L85 PathProgramCache]: Analyzing trace with hash -494799792, now seen corresponding path program 1 times [2023-12-25 09:21:45,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:45,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894962352] [2023-12-25 09:21:45,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:45,837 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 [2023-12-25 09:21:45,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:45,837 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:45,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-25 09:21:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:45,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:45,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 62 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 09:21:46,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 62 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 09:21:46,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:46,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894962352] [2023-12-25 09:21:46,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894962352] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:46,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:46,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2023-12-25 09:21:46,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664855290] [2023-12-25 09:21:46,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:46,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 09:21:46,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:46,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 09:21:46,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:21:46,737 INFO L87 Difference]: Start difference. First operand 128573 states and 146516 transitions. Second operand has 17 states, 17 states have (on average 9.470588235294118) internal successors, (161), 17 states have internal predecessors, (161), 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) [2023-12-25 09:21:48,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:48,576 INFO L93 Difference]: Finished difference Result 250260 states and 285417 transitions. [2023-12-25 09:21:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-25 09:21:48,576 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.470588235294118) internal successors, (161), 17 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-25 09:21:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:48,780 INFO L225 Difference]: With dead ends: 250260 [2023-12-25 09:21:48,781 INFO L226 Difference]: Without dead ends: 190924 [2023-12-25 09:21:48,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=334, Invalid=926, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 09:21:48,835 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 866 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:48,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 2543 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:21:48,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190924 states. [2023-12-25 09:21:50,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190924 to 132438. [2023-12-25 09:21:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132438 states, 132437 states have (on average 1.1390396943452359) internal successors, (150851), 132437 states have internal predecessors, (150851), 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) [2023-12-25 09:21:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132438 states to 132438 states and 150851 transitions. [2023-12-25 09:21:50,686 INFO L78 Accepts]: Start accepts. Automaton has 132438 states and 150851 transitions. Word has length 119 [2023-12-25 09:21:50,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:50,686 INFO L495 AbstractCegarLoop]: Abstraction has 132438 states and 150851 transitions. [2023-12-25 09:21:50,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.470588235294118) internal successors, (161), 17 states have internal predecessors, (161), 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) [2023-12-25 09:21:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 132438 states and 150851 transitions. [2023-12-25 09:21:50,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 09:21:50,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:50,693 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:50,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-12-25 09:21:50,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:50,894 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:21:50,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:50,895 INFO L85 PathProgramCache]: Analyzing trace with hash 443830802, now seen corresponding path program 1 times [2023-12-25 09:21:50,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:50,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080624916] [2023-12-25 09:21:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:50,895 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 [2023-12-25 09:21:50,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:50,896 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:50,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-25 09:21:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:50,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-25 09:21:50,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:53,486 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 33 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:53,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 13 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:54,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:54,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080624916] [2023-12-25 09:21:54,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080624916] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:54,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:54,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 42 [2023-12-25 09:21:54,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543266560] [2023-12-25 09:21:54,754 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:54,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-25 09:21:54,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:54,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-25 09:21:54,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1519, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 09:21:54,756 INFO L87 Difference]: Start difference. First operand 132438 states and 150851 transitions. Second operand has 42 states, 42 states have (on average 5.642857142857143) internal successors, (237), 42 states have internal predecessors, (237), 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) [2023-12-25 09:26:18,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:26:18,484 INFO L93 Difference]: Finished difference Result 434521 states and 490772 transitions. [2023-12-25 09:26:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1048 states. [2023-12-25 09:26:18,485 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.642857142857143) internal successors, (237), 42 states have internal predecessors, (237), 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 123 [2023-12-25 09:26:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:26:18,939 INFO L225 Difference]: With dead ends: 434521 [2023-12-25 09:26:18,940 INFO L226 Difference]: Without dead ends: 357339 [2023-12-25 09:26:19,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1290 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1083 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569428 ImplicationChecksByTransitivity, 241.8s TimeCoverageRelationStatistics Valid=76718, Invalid=1099422, Unknown=0, NotChecked=0, Total=1176140 [2023-12-25 09:26:19,313 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 13927 mSDsluCounter, 16435 mSDsCounter, 0 mSdLazyCounter, 12509 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13927 SdHoareTripleChecker+Valid, 17257 SdHoareTripleChecker+Invalid, 12751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 12509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:26:19,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13927 Valid, 17257 Invalid, 12751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [242 Valid, 12509 Invalid, 0 Unknown, 0 Unchecked, 20.3s Time] [2023-12-25 09:26:19,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357339 states. [2023-12-25 09:26:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357339 to 151305. [2023-12-25 09:26:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151305 states, 151304 states have (on average 1.1386215830381219) internal successors, (172278), 151304 states have internal predecessors, (172278), 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) [2023-12-25 09:26:21,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151305 states to 151305 states and 172278 transitions. [2023-12-25 09:26:21,946 INFO L78 Accepts]: Start accepts. Automaton has 151305 states and 172278 transitions. Word has length 123 [2023-12-25 09:26:21,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:26:21,946 INFO L495 AbstractCegarLoop]: Abstraction has 151305 states and 172278 transitions. [2023-12-25 09:26:21,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.642857142857143) internal successors, (237), 42 states have internal predecessors, (237), 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) [2023-12-25 09:26:21,946 INFO L276 IsEmpty]: Start isEmpty. Operand 151305 states and 172278 transitions. [2023-12-25 09:26:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 09:26:22,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:26:22,243 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:26:22,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-25 09:26:22,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:26:22,443 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:26:22,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:26:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1091801696, now seen corresponding path program 1 times [2023-12-25 09:26:22,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:26:22,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108523470] [2023-12-25 09:26:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:26:22,444 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 [2023-12-25 09:26:22,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:26:22,445 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:26:22,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-25 09:26:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:26:22,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-25 09:26:22,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:26:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 24 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:26:25,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:26:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 13 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:26:26,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:26:26,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108523470] [2023-12-25 09:26:26,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108523470] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:26:26,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:26:26,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20] total 43 [2023-12-25 09:26:26,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946500690] [2023-12-25 09:26:26,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:26:26,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-25 09:26:26,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:26:26,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-25 09:26:26,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1596, Unknown=0, NotChecked=0, Total=1806 [2023-12-25 09:26:26,632 INFO L87 Difference]: Start difference. First operand 151305 states and 172278 transitions. Second operand has 43 states, 43 states have (on average 5.558139534883721) internal successors, (239), 43 states have internal predecessors, (239), 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) [2023-12-25 09:29:06,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:29:06,428 INFO L93 Difference]: Finished difference Result 384931 states and 436275 transitions. [2023-12-25 09:29:06,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 703 states. [2023-12-25 09:29:06,429 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.558139534883721) internal successors, (239), 43 states have internal predecessors, (239), 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 124 [2023-12-25 09:29:06,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:29:06,815 INFO L225 Difference]: With dead ends: 384931 [2023-12-25 09:29:06,815 INFO L226 Difference]: Without dead ends: 289153 [2023-12-25 09:29:06,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 946 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 738 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259525 ImplicationChecksByTransitivity, 144.0s TimeCoverageRelationStatistics Valid=44303, Invalid=502557, Unknown=0, NotChecked=0, Total=546860 [2023-12-25 09:29:06,927 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 12090 mSDsluCounter, 14130 mSDsCounter, 0 mSdLazyCounter, 9127 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12090 SdHoareTripleChecker+Valid, 14706 SdHoareTripleChecker+Invalid, 9380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 9127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:29:06,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12090 Valid, 14706 Invalid, 9380 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [253 Valid, 9127 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2023-12-25 09:29:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289153 states. [2023-12-25 09:29:09,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289153 to 168439. [2023-12-25 09:29:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168439 states, 168438 states have (on average 1.139250050463672) internal successors, (191893), 168438 states have internal predecessors, (191893), 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) [2023-12-25 09:29:10,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168439 states to 168439 states and 191893 transitions. [2023-12-25 09:29:10,271 INFO L78 Accepts]: Start accepts. Automaton has 168439 states and 191893 transitions. Word has length 124 [2023-12-25 09:29:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:29:10,271 INFO L495 AbstractCegarLoop]: Abstraction has 168439 states and 191893 transitions. [2023-12-25 09:29:10,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.558139534883721) internal successors, (239), 43 states have internal predecessors, (239), 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) [2023-12-25 09:29:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 168439 states and 191893 transitions. [2023-12-25 09:29:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 09:29:10,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:29:10,278 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:29:10,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-25 09:29:10,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:29:10,482 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:29:10,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:29:10,482 INFO L85 PathProgramCache]: Analyzing trace with hash -883965824, now seen corresponding path program 1 times [2023-12-25 09:29:10,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:29:10,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802555931] [2023-12-25 09:29:10,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:29:10,483 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 [2023-12-25 09:29:10,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:29:10,484 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:29:10,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-25 09:29:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:29:10,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-25 09:29:10,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:29:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 34 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:29:13,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:29:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 23 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:29:16,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:29:16,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802555931] [2023-12-25 09:29:16,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802555931] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:29:16,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:29:16,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28] total 55 [2023-12-25 09:29:16,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995437743] [2023-12-25 09:29:16,000 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:29:16,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-12-25 09:29:16,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:29:16,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-12-25 09:29:16,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=2635, Unknown=0, NotChecked=0, Total=2970 [2023-12-25 09:29:16,002 INFO L87 Difference]: Start difference. First operand 168439 states and 191893 transitions. Second operand has 55 states, 55 states have (on average 4.236363636363636) internal successors, (233), 55 states have internal predecessors, (233), 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) [2023-12-25 09:33:18,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:33:18,464 INFO L93 Difference]: Finished difference Result 405289 states and 459704 transitions. [2023-12-25 09:33:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 937 states. [2023-12-25 09:33:18,465 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 4.236363636363636) internal successors, (233), 55 states have internal predecessors, (233), 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 124 [2023-12-25 09:33:18,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:33:19,686 INFO L225 Difference]: With dead ends: 405289 [2023-12-25 09:33:19,686 INFO L226 Difference]: Without dead ends: 313510 [2023-12-25 09:33:19,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1178 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 982 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462477 ImplicationChecksByTransitivity, 219.7s TimeCoverageRelationStatistics Valid=73917, Invalid=893355, Unknown=0, NotChecked=0, Total=967272 [2023-12-25 09:33:19,907 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 17581 mSDsluCounter, 16569 mSDsCounter, 0 mSdLazyCounter, 12997 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17581 SdHoareTripleChecker+Valid, 17005 SdHoareTripleChecker+Invalid, 13443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 12997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:33:19,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17581 Valid, 17005 Invalid, 13443 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [446 Valid, 12997 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time] [2023-12-25 09:33:20,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313510 states. [2023-12-25 09:33:22,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313510 to 175208. [2023-12-25 09:33:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175208 states, 175207 states have (on average 1.1386474284703236) internal successors, (199499), 175207 states have internal predecessors, (199499), 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) [2023-12-25 09:33:23,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175208 states to 175208 states and 199499 transitions. [2023-12-25 09:33:23,316 INFO L78 Accepts]: Start accepts. Automaton has 175208 states and 199499 transitions. Word has length 124 [2023-12-25 09:33:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:33:23,317 INFO L495 AbstractCegarLoop]: Abstraction has 175208 states and 199499 transitions. [2023-12-25 09:33:23,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 4.236363636363636) internal successors, (233), 55 states have internal predecessors, (233), 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) [2023-12-25 09:33:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand 175208 states and 199499 transitions. [2023-12-25 09:33:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 09:33:23,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:33:23,336 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:33:23,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2023-12-25 09:33:23,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:33:23,539 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:33:23,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:33:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1341104403, now seen corresponding path program 2 times [2023-12-25 09:33:23,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:33:23,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193601586] [2023-12-25 09:33:23,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 09:33:23,543 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 [2023-12-25 09:33:23,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:33:23,545 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:33:23,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-25 09:33:23,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 09:33:23,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 09:33:23,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:33:23,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:33:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-12-25 09:33:23,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:33:23,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:33:23,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193601586] [2023-12-25 09:33:23,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193601586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:33:23,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:33:23,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:33:23,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253624135] [2023-12-25 09:33:23,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:33:23,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:33:23,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:33:23,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:33:23,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:33:23,661 INFO L87 Difference]: Start difference. First operand 175208 states and 199499 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-12-25 09:33:24,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:33:24,541 INFO L93 Difference]: Finished difference Result 236513 states and 268825 transitions. [2023-12-25 09:33:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:33:24,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 145 [2023-12-25 09:33:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:33:24,645 INFO L225 Difference]: With dead ends: 236513 [2023-12-25 09:33:24,645 INFO L226 Difference]: Without dead ends: 64050 [2023-12-25 09:33:24,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:33:24,705 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 34 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:33:24,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 190 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:33:24,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64050 states. Received shutdown request... [2023-12-25 09:33:24,877 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 09:33:24,880 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 (43)] Forceful destruction successful, exit code 0 [2023-12-25 09:33:24,895 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 [2023-12-25 09:33:24,895 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 (43)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 09:33:25,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:33:25,078 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-25 09:33:25,088 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:33:25,092 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 09:33:25,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 09:33:25 BoogieIcfgContainer [2023-12-25 09:33:25,097 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 09:33:25,098 INFO L158 Benchmark]: Toolchain (without parser) took 822453.46ms. Allocated memory was 324.0MB in the beginning and 7.7GB in the end (delta: 7.4GB). Free memory was 273.2MB in the beginning and 6.0GB in the end (delta: -5.8GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-25 09:33:25,098 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 182.5MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 09:33:25,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.86ms. Allocated memory is still 324.0MB. Free memory was 272.9MB in the beginning and 256.5MB in the end (delta: 16.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-25 09:33:25,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.68ms. Allocated memory is still 324.0MB. Free memory was 256.5MB in the beginning and 254.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 09:33:25,098 INFO L158 Benchmark]: Boogie Preprocessor took 73.24ms. Allocated memory is still 324.0MB. Free memory was 254.3MB in the beginning and 251.6MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-25 09:33:25,098 INFO L158 Benchmark]: RCFGBuilder took 703.66ms. Allocated memory is still 324.0MB. Free memory was 251.2MB in the beginning and 291.0MB in the end (delta: -39.8MB). Peak memory consumption was 29.9MB. Max. memory is 8.0GB. [2023-12-25 09:33:25,099 INFO L158 Benchmark]: TraceAbstraction took 821304.25ms. Allocated memory was 324.0MB in the beginning and 7.7GB in the end (delta: 7.4GB). Free memory was 290.5MB in the beginning and 6.0GB in the end (delta: -5.8GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-25 09:33:25,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 182.5MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 319.86ms. Allocated memory is still 324.0MB. Free memory was 272.9MB in the beginning and 256.5MB in the end (delta: 16.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.68ms. Allocated memory is still 324.0MB. Free memory was 256.5MB in the beginning and 254.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.24ms. Allocated memory is still 324.0MB. Free memory was 254.3MB in the beginning and 251.6MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 703.66ms. Allocated memory is still 324.0MB. Free memory was 251.2MB in the beginning and 291.0MB in the end (delta: -39.8MB). Peak memory consumption was 29.9MB. Max. memory is 8.0GB. * TraceAbstraction took 821304.25ms. Allocated memory was 324.0MB in the beginning and 7.7GB in the end (delta: 7.4GB). Free memory was 290.5MB in the beginning and 6.0GB in the end (delta: -5.8GB). Peak memory consumption was 1.7GB. 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: 214]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 214). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 821.2s, OverallIterations: 42, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 743.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84296 SdHoareTripleChecker+Valid, 79.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84296 mSDsluCounter, 111437 SdHoareTripleChecker+Invalid, 72.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101833 mSDsCounter, 1486 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56187 IncrementalHoareTripleChecker+Invalid, 57673 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1486 mSolverCounterUnsat, 9604 mSDtfsCounter, 56187 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9217 GetRequests, 5181 SyntacticMatches, 0 SemanticMatches, 4036 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1337973 ImplicationChecksByTransitivity, 648.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175208occurred in iteration=41, InterpolantAutomatonStates: 3745, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 33.7s AutomataMinimizationTime, 42 MinimizatonAttempts, 1095010 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 3366 NumberOfCodeBlocks, 3366 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 5487 ConstructedInterpolants, 1268 QuantifiedInterpolants, 59964 SizeOfPredicates, 180 NumberOfNonLiveVariables, 6648 ConjunctsInSsa, 339 ConjunctsInUnsatCore, 64 InterpolantComputations, 20 PerfectInterpolantSequences, 1845/2983 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