/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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:44:27,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:44:27,209 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 09:44:27,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:44:27,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:44:27,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:44:27,242 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:44:27,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:44:27,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:44:27,243 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:44:27,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:44:27,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:44:27,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:44:27,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:44:27,244 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:44:27,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:44:27,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:44:27,245 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:44:27,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:44:27,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:44:27,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:44:27,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:44:27,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:44:27,249 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:44:27,252 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:44:27,252 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:44:27,252 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:44:27,253 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:44:27,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:44:27,253 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:44:27,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:44:27,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:44:27,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:44:27,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:44:27,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:44:27,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:44:27,254 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:44:27,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:44:27,255 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:44:27,255 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:44:27,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:44:27,255 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:44:27,255 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:44:27,255 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:44:27,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:44:27,256 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:44:27,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:44:27,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:44:27,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:44:27,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:44:27,428 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:44:27,428 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:44:27,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:44:28,443 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:44:28,881 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:44:28,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:44:28,923 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb8130d5/5427b37b19684f1ca3071300214b31d4/FLAG20b7f6e89 [2023-12-25 09:44:28,938 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb8130d5/5427b37b19684f1ca3071300214b31d4 [2023-12-25 09:44:28,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:44:28,942 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:44:28,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:44:28,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:44:28,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:44:28,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:44:28" (1/1) ... [2023-12-25 09:44:28,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d89bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:28, skipping insertion in model container [2023-12-25 09:44:28,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:44:28" (1/1) ... [2023-12-25 09:44:29,130 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:44:29,617 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19354,19367] [2023-12-25 09:44:30,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:44:30,492 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:44:30,535 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19354,19367] [2023-12-25 09:44:31,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:44:31,134 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:44:31,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31 WrapperNode [2023-12-25 09:44:31,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:44:31,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:44:31,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:44:31,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:44:31,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,392 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19975 [2023-12-25 09:44:31,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:44:31,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:44:31,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:44:31,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:44:31,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,463 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,659 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 09:44:31,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:44:31,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:44:31,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:44:31,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:44:31,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (1/1) ... [2023-12-25 09:44:31,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:44:31,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:44:32,070 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 09:44:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:44:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:44:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:44:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:44:32,099 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 09:44:32,659 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:44:32,660 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:44:40,001 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:44:40,100 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:44:40,100 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:44:40,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:44:40 BoogieIcfgContainer [2023-12-25 09:44:40,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:44:40,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:44:40,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:44:40,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:44:40,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:44:28" (1/3) ... [2023-12-25 09:44:40,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752e5edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:44:40, skipping insertion in model container [2023-12-25 09:44:40,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:31" (2/3) ... [2023-12-25 09:44:40,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752e5edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:44:40, skipping insertion in model container [2023-12-25 09:44:40,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:44:40" (3/3) ... [2023-12-25 09:44:40,106 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:44:40,119 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:44:40,119 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 09:44:40,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:44:40,199 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;@12ca349a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:44:40,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 09:44:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 2866 states, 2864 states have (on average 1.9095670391061452) internal successors, (5469), 2865 states have internal predecessors, (5469), 0 states have call successors, (0), 0 states 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 09:44:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 09:44:40,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:40,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:40,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:40,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:40,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1129198258, now seen corresponding path program 1 times [2023-12-25 09:44:40,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:40,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921974916] [2023-12-25 09:44:40,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:40,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:40,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:40,251 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 09:44:40,255 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 09:44:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:40,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:40,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:41,211 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 09:44:41,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:41,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:41,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921974916] [2023-12-25 09:44:41,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921974916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:41,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:41,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:41,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669026791] [2023-12-25 09:44:41,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:41,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:41,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:41,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:41,241 INFO L87 Difference]: Start difference. First operand has 2866 states, 2864 states have (on average 1.9095670391061452) internal successors, (5469), 2865 states have internal predecessors, (5469), 0 states have call successors, (0), 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 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:43,225 INFO L93 Difference]: Finished difference Result 4266 states and 8036 transitions. [2023-12-25 09:44:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:43,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-25 09:44:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:43,253 INFO L225 Difference]: With dead ends: 4266 [2023-12-25 09:44:43,254 INFO L226 Difference]: Without dead ends: 2264 [2023-12-25 09:44:43,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:43,265 INFO L413 NwaCegarLoop]: 2656 mSDtfsCounter, 8052 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8052 SdHoareTripleChecker+Valid, 2912 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:43,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8052 Valid, 2912 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 09:44:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2023-12-25 09:44:43,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2262. [2023-12-25 09:44:43,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 2261 states have (on average 1.3060592658115877) internal successors, (2953), 2261 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states 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 09:44:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2953 transitions. [2023-12-25 09:44:43,350 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2953 transitions. Word has length 77 [2023-12-25 09:44:43,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:43,350 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 2953 transitions. [2023-12-25 09:44:43,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:43,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2953 transitions. [2023-12-25 09:44:43,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 09:44:43,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:43,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:43,363 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 09:44:43,559 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 09:44:43,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:43,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:43,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1501345044, now seen corresponding path program 1 times [2023-12-25 09:44:43,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:43,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768844] [2023-12-25 09:44:43,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:43,562 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 09:44:43,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:43,563 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 09:44:43,563 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 09:44:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:44,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:44,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:44,315 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 09:44:44,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:44,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:44,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768844] [2023-12-25 09:44:44,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:44,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:44,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:44,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891418243] [2023-12-25 09:44:44,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:44,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:44,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:44,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:44,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:44,318 INFO L87 Difference]: Start difference. First operand 2262 states and 2953 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:45,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:45,403 INFO L93 Difference]: Finished difference Result 3758 states and 5075 transitions. [2023-12-25 09:44:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:45,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-25 09:44:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:45,410 INFO L225 Difference]: With dead ends: 3758 [2023-12-25 09:44:45,410 INFO L226 Difference]: Without dead ends: 2101 [2023-12-25 09:44:45,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 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 09:44:45,413 INFO L413 NwaCegarLoop]: 1183 mSDtfsCounter, 4137 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:45,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 1398 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 09:44:45,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2023-12-25 09:44:45,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 2099. [2023-12-25 09:44:45,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 2098 states have (on average 1.361296472831268) internal successors, (2856), 2098 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:44:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 2856 transitions. [2023-12-25 09:44:45,463 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 2856 transitions. Word has length 78 [2023-12-25 09:44:45,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:45,464 INFO L495 AbstractCegarLoop]: Abstraction has 2099 states and 2856 transitions. [2023-12-25 09:44:45,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 2856 transitions. [2023-12-25 09:44:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 09:44:45,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:45,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:45,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:45,684 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 09:44:45,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:45,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:45,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1898107735, now seen corresponding path program 1 times [2023-12-25 09:44:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:45,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658769719] [2023-12-25 09:44:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:45,686 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 09:44:45,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:45,697 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 09:44:45,698 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 09:44:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:46,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:46,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:46,443 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 09:44:46,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:46,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:46,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658769719] [2023-12-25 09:44:46,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658769719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:46,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:46,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:46,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518668951] [2023-12-25 09:44:46,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:46,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:46,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:46,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:46,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:46,445 INFO L87 Difference]: Start difference. First operand 2099 states and 2856 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 09:44:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:47,421 INFO L93 Difference]: Finished difference Result 4057 states and 5728 transitions. [2023-12-25 09:44:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:47,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2023-12-25 09:44:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:47,430 INFO L225 Difference]: With dead ends: 4057 [2023-12-25 09:44:47,431 INFO L226 Difference]: Without dead ends: 2403 [2023-12-25 09:44:47,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 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 09:44:47,435 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 4988 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4988 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:47,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4988 Valid, 1110 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:44:47,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2023-12-25 09:44:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2401. [2023-12-25 09:44:47,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2401 states, 2400 states have (on average 1.4175) internal successors, (3402), 2400 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states 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 09:44:47,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 3402 transitions. [2023-12-25 09:44:47,486 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 3402 transitions. Word has length 79 [2023-12-25 09:44:47,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:47,486 INFO L495 AbstractCegarLoop]: Abstraction has 2401 states and 3402 transitions. [2023-12-25 09:44:47,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 09:44:47,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 3402 transitions. [2023-12-25 09:44:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 09:44:47,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:47,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:47,517 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 09:44:47,700 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 09:44:47,701 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:47,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:47,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2139077694, now seen corresponding path program 1 times [2023-12-25 09:44:47,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:47,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062773980] [2023-12-25 09:44:47,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:47,703 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 09:44:47,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:47,704 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 09:44:47,753 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 09:44:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:48,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:44:48,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:48,641 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 09:44:48,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:48,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:48,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062773980] [2023-12-25 09:44:48,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062773980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:48,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:48,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:44:48,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056084996] [2023-12-25 09:44:48,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:48,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:44:48,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:48,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:44:48,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:44:48,651 INFO L87 Difference]: Start difference. First operand 2401 states and 3402 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:49,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:49,458 INFO L93 Difference]: Finished difference Result 8170 states and 12056 transitions. [2023-12-25 09:44:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:44:49,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-25 09:44:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:49,483 INFO L225 Difference]: With dead ends: 8170 [2023-12-25 09:44:49,484 INFO L226 Difference]: Without dead ends: 6410 [2023-12-25 09:44:49,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:44:49,491 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 6674 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6674 SdHoareTripleChecker+Valid, 3474 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:49,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6674 Valid, 3474 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:44:49,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6410 states. [2023-12-25 09:44:49,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6410 to 6402. [2023-12-25 09:44:49,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6402 states, 6401 states have (on average 1.460396812997969) internal successors, (9348), 6401 states have internal predecessors, (9348), 0 states have call successors, (0), 0 states 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 09:44:49,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6402 states to 6402 states and 9348 transitions. [2023-12-25 09:44:49,637 INFO L78 Accepts]: Start accepts. Automaton has 6402 states and 9348 transitions. Word has length 80 [2023-12-25 09:44:49,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:49,639 INFO L495 AbstractCegarLoop]: Abstraction has 6402 states and 9348 transitions. [2023-12-25 09:44:49,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:49,640 INFO L276 IsEmpty]: Start isEmpty. Operand 6402 states and 9348 transitions. [2023-12-25 09:44:49,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 09:44:49,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:49,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:49,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 09:44:49,853 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 09:44:49,857 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:49,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:49,857 INFO L85 PathProgramCache]: Analyzing trace with hash 281139180, now seen corresponding path program 1 times [2023-12-25 09:44:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189755547] [2023-12-25 09:44:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:49,858 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 09:44:49,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:49,859 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 09:44:49,863 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 09:44:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:50,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:50,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:50,698 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 09:44:50,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:50,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:50,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189755547] [2023-12-25 09:44:50,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189755547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:50,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:50,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:50,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517140435] [2023-12-25 09:44:50,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:50,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:50,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:50,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:50,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:50,701 INFO L87 Difference]: Start difference. First operand 6402 states and 9348 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:51,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:51,731 INFO L93 Difference]: Finished difference Result 15501 states and 22996 transitions. [2023-12-25 09:44:51,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:51,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-25 09:44:51,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:51,760 INFO L225 Difference]: With dead ends: 15501 [2023-12-25 09:44:51,760 INFO L226 Difference]: Without dead ends: 9886 [2023-12-25 09:44:51,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 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 09:44:51,772 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 4144 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4144 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:51,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4144 Valid, 881 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:44:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9886 states. [2023-12-25 09:44:51,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9886 to 9884. [2023-12-25 09:44:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9884 states, 9883 states have (on average 1.4738439745016696) internal successors, (14566), 9883 states have internal predecessors, (14566), 0 states have call successors, (0), 0 states 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 09:44:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9884 states to 9884 states and 14566 transitions. [2023-12-25 09:44:51,957 INFO L78 Accepts]: Start accepts. Automaton has 9884 states and 14566 transitions. Word has length 80 [2023-12-25 09:44:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:51,957 INFO L495 AbstractCegarLoop]: Abstraction has 9884 states and 14566 transitions. [2023-12-25 09:44:51,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9884 states and 14566 transitions. [2023-12-25 09:44:51,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 09:44:51,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:51,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:51,998 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 09:44:52,183 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 09:44:52,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:52,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:52,184 INFO L85 PathProgramCache]: Analyzing trace with hash -4255159, now seen corresponding path program 1 times [2023-12-25 09:44:52,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:52,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257519032] [2023-12-25 09:44:52,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:52,184 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 09:44:52,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:52,185 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 09:44:52,192 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 09:44:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:52,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:52,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:53,028 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 09:44:53,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:53,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:53,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257519032] [2023-12-25 09:44:53,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257519032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:53,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:53,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:53,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009833243] [2023-12-25 09:44:53,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:53,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:53,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:53,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:53,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:53,030 INFO L87 Difference]: Start difference. First operand 9884 states and 14566 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:53,981 INFO L93 Difference]: Finished difference Result 26389 states and 39425 transitions. [2023-12-25 09:44:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-25 09:44:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:54,017 INFO L225 Difference]: With dead ends: 26389 [2023-12-25 09:44:54,017 INFO L226 Difference]: Without dead ends: 17096 [2023-12-25 09:44:54,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 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 09:44:54,031 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 2467 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:54,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 865 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:44:54,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17096 states. [2023-12-25 09:44:54,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17096 to 17094. [2023-12-25 09:44:54,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17094 states, 17093 states have (on average 1.489323114725326) internal successors, (25457), 17093 states have internal predecessors, (25457), 0 states have call successors, (0), 0 states 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 09:44:54,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17094 states to 17094 states and 25457 transitions. [2023-12-25 09:44:54,257 INFO L78 Accepts]: Start accepts. Automaton has 17094 states and 25457 transitions. Word has length 80 [2023-12-25 09:44:54,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:54,260 INFO L495 AbstractCegarLoop]: Abstraction has 17094 states and 25457 transitions. [2023-12-25 09:44:54,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 17094 states and 25457 transitions. [2023-12-25 09:44:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:44:54,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:54,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:54,275 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 09:44:54,472 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 09:44:54,472 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:54,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:54,473 INFO L85 PathProgramCache]: Analyzing trace with hash -25330714, now seen corresponding path program 1 times [2023-12-25 09:44:54,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:54,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070468542] [2023-12-25 09:44:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:54,474 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 09:44:54,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:54,474 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 09:44:54,475 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 09:44:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:55,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:44:55,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:55,190 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 09:44:55,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:55,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:55,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070468542] [2023-12-25 09:44:55,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070468542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:55,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:55,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:44:55,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32656700] [2023-12-25 09:44:55,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:55,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:44:55,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:55,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:44:55,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:55,192 INFO L87 Difference]: Start difference. First operand 17094 states and 25457 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:44:56,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:56,400 INFO L93 Difference]: Finished difference Result 72360 states and 109445 transitions. [2023-12-25 09:44:56,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:44:56,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-25 09:44:56,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:56,538 INFO L225 Difference]: With dead ends: 72360 [2023-12-25 09:44:56,539 INFO L226 Difference]: Without dead ends: 56548 [2023-12-25 09:44:56,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:44:56,576 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 3150 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:56,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3150 Valid, 1822 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:44:56,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56548 states. [2023-12-25 09:44:57,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56548 to 17030. [2023-12-25 09:44:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17030 states, 17029 states have (on average 1.4817663984966822) internal successors, (25233), 17029 states have internal predecessors, (25233), 0 states have call successors, (0), 0 states 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 09:44:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17030 states to 17030 states and 25233 transitions. [2023-12-25 09:44:57,179 INFO L78 Accepts]: Start accepts. Automaton has 17030 states and 25233 transitions. Word has length 81 [2023-12-25 09:44:57,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:57,179 INFO L495 AbstractCegarLoop]: Abstraction has 17030 states and 25233 transitions. [2023-12-25 09:44:57,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:44:57,180 INFO L276 IsEmpty]: Start isEmpty. Operand 17030 states and 25233 transitions. [2023-12-25 09:44:57,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:44:57,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:57,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:57,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:57,390 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 09:44:57,391 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:57,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:57,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1816946042, now seen corresponding path program 1 times [2023-12-25 09:44:57,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:57,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165313383] [2023-12-25 09:44:57,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:57,392 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 09:44:57,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:57,393 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 09:44:57,396 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 09:44:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:57,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:44:57,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:58,239 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 09:44:58,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:58,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:58,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165313383] [2023-12-25 09:44:58,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165313383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:58,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:58,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:44:58,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127750397] [2023-12-25 09:44:58,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:58,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:44:58,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:58,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:44:58,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:58,245 INFO L87 Difference]: Start difference. First operand 17030 states and 25233 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:44:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:59,497 INFO L93 Difference]: Finished difference Result 104792 states and 158683 transitions. [2023-12-25 09:44:59,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:44:59,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-25 09:44:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:59,647 INFO L225 Difference]: With dead ends: 104792 [2023-12-25 09:44:59,647 INFO L226 Difference]: Without dead ends: 89830 [2023-12-25 09:44:59,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:44:59,697 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 3406 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3406 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:59,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3406 Valid, 1859 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:44:59,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89830 states. [2023-12-25 09:45:00,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89830 to 16958. [2023-12-25 09:45:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16958 states, 16957 states have (on average 1.467771421831692) internal successors, (24889), 16957 states have internal predecessors, (24889), 0 states have call successors, (0), 0 states 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 09:45:00,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16958 states to 16958 states and 24889 transitions. [2023-12-25 09:45:00,614 INFO L78 Accepts]: Start accepts. Automaton has 16958 states and 24889 transitions. Word has length 81 [2023-12-25 09:45:00,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:00,615 INFO L495 AbstractCegarLoop]: Abstraction has 16958 states and 24889 transitions. [2023-12-25 09:45:00,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 16958 states and 24889 transitions. [2023-12-25 09:45:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:45:00,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:00,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:00,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 09:45:00,829 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 09:45:00,829 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:00,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:00,830 INFO L85 PathProgramCache]: Analyzing trace with hash -679853017, now seen corresponding path program 1 times [2023-12-25 09:45:00,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:00,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409089290] [2023-12-25 09:45:00,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:00,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:00,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:00,832 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 09:45:00,834 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 09:45:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:01,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:45:01,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:01,413 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 09:45:01,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:01,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:01,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409089290] [2023-12-25 09:45:01,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409089290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:01,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:01,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:45:01,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012852549] [2023-12-25 09:45:01,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:01,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:45:01,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:01,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:45:01,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:45:01,415 INFO L87 Difference]: Start difference. First operand 16958 states and 24889 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:01,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:01,565 INFO L93 Difference]: Finished difference Result 26906 states and 39643 transitions. [2023-12-25 09:45:01,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:45:01,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-25 09:45:01,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:01,591 INFO L225 Difference]: With dead ends: 26906 [2023-12-25 09:45:01,591 INFO L226 Difference]: Without dead ends: 19988 [2023-12-25 09:45:01,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 09:45:01,605 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 671 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:01,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1914 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:45:01,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19988 states. [2023-12-25 09:45:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19988 to 19849. [2023-12-25 09:45:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19849 states, 19848 states have (on average 1.4522873841193067) internal successors, (28825), 19848 states have internal predecessors, (28825), 0 states have call successors, (0), 0 states 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 09:45:01,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19849 states to 19849 states and 28825 transitions. [2023-12-25 09:45:01,996 INFO L78 Accepts]: Start accepts. Automaton has 19849 states and 28825 transitions. Word has length 81 [2023-12-25 09:45:01,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:01,996 INFO L495 AbstractCegarLoop]: Abstraction has 19849 states and 28825 transitions. [2023-12-25 09:45:01,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:01,997 INFO L276 IsEmpty]: Start isEmpty. Operand 19849 states and 28825 transitions. [2023-12-25 09:45:02,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:45:02,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:02,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:02,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 09:45:02,210 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 09:45:02,211 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:02,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:02,212 INFO L85 PathProgramCache]: Analyzing trace with hash -743619609, now seen corresponding path program 1 times [2023-12-25 09:45:02,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:02,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715061365] [2023-12-25 09:45:02,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:02,213 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 09:45:02,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:02,215 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 09:45:02,217 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 09:45:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:02,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:45:02,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:03,070 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 09:45:03,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:03,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:03,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715061365] [2023-12-25 09:45:03,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715061365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:03,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:03,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:45:03,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100042542] [2023-12-25 09:45:03,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:03,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:45:03,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:03,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:45:03,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:45:03,072 INFO L87 Difference]: Start difference. First operand 19849 states and 28825 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:04,347 INFO L93 Difference]: Finished difference Result 108659 states and 160355 transitions. [2023-12-25 09:45:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:45:04,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-25 09:45:04,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:04,475 INFO L225 Difference]: With dead ends: 108659 [2023-12-25 09:45:04,475 INFO L226 Difference]: Without dead ends: 91939 [2023-12-25 09:45:04,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:45:04,496 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 4912 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4912 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:04,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4912 Valid, 1853 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:45:04,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91939 states. [2023-12-25 09:45:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91939 to 19954. [2023-12-25 09:45:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19954 states, 19953 states have (on average 1.4377787801333133) internal successors, (28688), 19953 states have internal predecessors, (28688), 0 states have call successors, (0), 0 states 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 09:45:05,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19954 states to 19954 states and 28688 transitions. [2023-12-25 09:45:05,279 INFO L78 Accepts]: Start accepts. Automaton has 19954 states and 28688 transitions. Word has length 81 [2023-12-25 09:45:05,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:05,279 INFO L495 AbstractCegarLoop]: Abstraction has 19954 states and 28688 transitions. [2023-12-25 09:45:05,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand 19954 states and 28688 transitions. [2023-12-25 09:45:05,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:45:05,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:05,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:05,307 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 09:45:05,490 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 09:45:05,491 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:05,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash 253749791, now seen corresponding path program 1 times [2023-12-25 09:45:05,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:05,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691118598] [2023-12-25 09:45:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:05,492 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 09:45:05,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:05,493 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 09:45:05,497 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 09:45:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:05,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:45:05,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:06,020 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 09:45:06,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:06,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:06,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691118598] [2023-12-25 09:45:06,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691118598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:06,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:06,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:45:06,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417771989] [2023-12-25 09:45:06,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:06,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:45:06,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:06,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:45:06,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:45:06,022 INFO L87 Difference]: Start difference. First operand 19954 states and 28688 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:06,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:06,194 INFO L93 Difference]: Finished difference Result 50331 states and 72878 transitions. [2023-12-25 09:45:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:45:06,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-25 09:45:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:06,238 INFO L225 Difference]: With dead ends: 50331 [2023-12-25 09:45:06,239 INFO L226 Difference]: Without dead ends: 33927 [2023-12-25 09:45:06,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 09:45:06,260 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 870 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:06,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 2360 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:45:06,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33927 states. [2023-12-25 09:45:06,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33927 to 33845. [2023-12-25 09:45:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33845 states, 33844 states have (on average 1.4375664815033684) internal successors, (48653), 33844 states have internal predecessors, (48653), 0 states have call successors, (0), 0 states 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 09:45:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33845 states to 33845 states and 48653 transitions. [2023-12-25 09:45:06,696 INFO L78 Accepts]: Start accepts. Automaton has 33845 states and 48653 transitions. Word has length 81 [2023-12-25 09:45:06,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:06,696 INFO L495 AbstractCegarLoop]: Abstraction has 33845 states and 48653 transitions. [2023-12-25 09:45:06,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:06,696 INFO L276 IsEmpty]: Start isEmpty. Operand 33845 states and 48653 transitions. [2023-12-25 09:45:06,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:45:06,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:06,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:06,717 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 09:45:06,906 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 09:45:06,906 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:06,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1674672506, now seen corresponding path program 1 times [2023-12-25 09:45:06,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:06,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110536948] [2023-12-25 09:45:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:06,908 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 09:45:06,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:06,909 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 09:45:06,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 09:45:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:07,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:45:07,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:07,526 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 09:45:07,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:07,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110536948] [2023-12-25 09:45:07,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110536948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:07,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:07,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:45:07,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052837644] [2023-12-25 09:45:07,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:07,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:45:07,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:07,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:45:07,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:45:07,528 INFO L87 Difference]: Start difference. First operand 33845 states and 48653 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:09,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:09,077 INFO L93 Difference]: Finished difference Result 166426 states and 242922 transitions. [2023-12-25 09:45:09,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:45:09,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-25 09:45:09,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:09,477 INFO L225 Difference]: With dead ends: 166426 [2023-12-25 09:45:09,478 INFO L226 Difference]: Without dead ends: 138880 [2023-12-25 09:45:09,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:45:09,504 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 4266 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:09,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4266 Valid, 1852 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:45:09,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138880 states. [2023-12-25 09:45:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138880 to 34599. [2023-12-25 09:45:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34599 states, 34598 states have (on average 1.421382738886641) internal successors, (49177), 34598 states have internal predecessors, (49177), 0 states have call successors, (0), 0 states 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 09:45:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34599 states to 34599 states and 49177 transitions. [2023-12-25 09:45:10,652 INFO L78 Accepts]: Start accepts. Automaton has 34599 states and 49177 transitions. Word has length 81 [2023-12-25 09:45:10,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:10,652 INFO L495 AbstractCegarLoop]: Abstraction has 34599 states and 49177 transitions. [2023-12-25 09:45:10,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 34599 states and 49177 transitions. [2023-12-25 09:45:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:45:10,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:10,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:10,669 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 (13)] Ended with exit code 0 [2023-12-25 09:45:10,864 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 09:45:10,864 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:10,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:10,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1465793063, now seen corresponding path program 1 times [2023-12-25 09:45:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:10,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712966445] [2023-12-25 09:45:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:10,865 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 09:45:10,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:10,866 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 09:45:10,868 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 09:45:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:11,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:45:11,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:11,591 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 09:45:11,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:11,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:11,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712966445] [2023-12-25 09:45:11,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712966445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:11,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:11,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:45:11,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125689276] [2023-12-25 09:45:11,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:11,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:45:11,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:11,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:45:11,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:45:11,594 INFO L87 Difference]: Start difference. First operand 34599 states and 49177 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:11,852 INFO L93 Difference]: Finished difference Result 65119 states and 93046 transitions. [2023-12-25 09:45:11,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:45:11,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-25 09:45:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:11,914 INFO L225 Difference]: With dead ends: 65119 [2023-12-25 09:45:11,914 INFO L226 Difference]: Without dead ends: 42336 [2023-12-25 09:45:11,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 09:45:11,944 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 836 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:11,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 2358 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:45:11,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42336 states. [2023-12-25 09:45:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42336 to 42062. [2023-12-25 09:45:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42062 states, 42061 states have (on average 1.404674163714605) internal successors, (59082), 42061 states have internal predecessors, (59082), 0 states have call successors, (0), 0 states 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 09:45:12,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42062 states to 42062 states and 59082 transitions. [2023-12-25 09:45:12,595 INFO L78 Accepts]: Start accepts. Automaton has 42062 states and 59082 transitions. Word has length 81 [2023-12-25 09:45:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:12,596 INFO L495 AbstractCegarLoop]: Abstraction has 42062 states and 59082 transitions. [2023-12-25 09:45:12,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 42062 states and 59082 transitions. [2023-12-25 09:45:12,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:45:12,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:12,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:12,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-25 09:45:12,816 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 09:45:12,816 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:12,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:12,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1638530638, now seen corresponding path program 1 times [2023-12-25 09:45:12,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:12,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121860450] [2023-12-25 09:45:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:12,818 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 09:45:12,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:12,818 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 09:45:12,820 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 09:45:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:13,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:45:13,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:13,402 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 09:45:13,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:13,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:13,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121860450] [2023-12-25 09:45:13,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121860450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:13,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:13,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:45:13,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216204379] [2023-12-25 09:45:13,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:13,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:45:13,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:13,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:45:13,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:45:13,404 INFO L87 Difference]: Start difference. First operand 42062 states and 59082 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:13,869 INFO L93 Difference]: Finished difference Result 86866 states and 122688 transitions. [2023-12-25 09:45:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:45:13,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-25 09:45:13,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:13,936 INFO L225 Difference]: With dead ends: 86866 [2023-12-25 09:45:13,937 INFO L226 Difference]: Without dead ends: 52616 [2023-12-25 09:45:13,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 09:45:13,955 INFO L413 NwaCegarLoop]: 1468 mSDtfsCounter, 857 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:13,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 2297 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:45:13,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52616 states. [2023-12-25 09:45:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52616 to 52358. [2023-12-25 09:45:14,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52358 states, 52357 states have (on average 1.385564489944038) internal successors, (72544), 52357 states have internal predecessors, (72544), 0 states have call successors, (0), 0 states 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 09:45:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52358 states to 52358 states and 72544 transitions. [2023-12-25 09:45:14,814 INFO L78 Accepts]: Start accepts. Automaton has 52358 states and 72544 transitions. Word has length 81 [2023-12-25 09:45:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:14,815 INFO L495 AbstractCegarLoop]: Abstraction has 52358 states and 72544 transitions. [2023-12-25 09:45:14,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:45:14,815 INFO L276 IsEmpty]: Start isEmpty. Operand 52358 states and 72544 transitions. [2023-12-25 09:45:14,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:45:14,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:14,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:14,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-25 09:45:15,039 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 09:45:15,040 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:15,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:15,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1821473687, now seen corresponding path program 1 times [2023-12-25 09:45:15,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:15,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392050901] [2023-12-25 09:45:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:15,041 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 09:45:15,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:15,042 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 09:45:15,043 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 09:45:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:15,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:45:15,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:15,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:45:15,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:15,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:15,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392050901] [2023-12-25 09:45:15,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392050901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:15,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:15,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:45:15,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664898742] [2023-12-25 09:45:15,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:15,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:45:15,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:15,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:45:15,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:45:15,607 INFO L87 Difference]: Start difference. First operand 52358 states and 72544 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 09:45:16,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:16,075 INFO L93 Difference]: Finished difference Result 71555 states and 99103 transitions. [2023-12-25 09:45:16,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:45:16,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2023-12-25 09:45:16,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:16,140 INFO L225 Difference]: With dead ends: 71555 [2023-12-25 09:45:16,140 INFO L226 Difference]: Without dead ends: 54011 [2023-12-25 09:45:16,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 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 09:45:16,161 INFO L413 NwaCegarLoop]: 1247 mSDtfsCounter, 619 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:16,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 2040 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:45:16,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54011 states. [2023-12-25 09:45:16,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54011 to 49579. [2023-12-25 09:45:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49579 states, 49578 states have (on average 1.35568195570616) internal successors, (67212), 49578 states have internal predecessors, (67212), 0 states have call successors, (0), 0 states 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 09:45:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49579 states to 49579 states and 67212 transitions. [2023-12-25 09:45:16,904 INFO L78 Accepts]: Start accepts. Automaton has 49579 states and 67212 transitions. Word has length 82 [2023-12-25 09:45:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:16,905 INFO L495 AbstractCegarLoop]: Abstraction has 49579 states and 67212 transitions. [2023-12-25 09:45:16,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 09:45:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 49579 states and 67212 transitions. [2023-12-25 09:45:16,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:45:16,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:16,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:16,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 09:45:17,125 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 09:45:17,125 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:17,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:17,126 INFO L85 PathProgramCache]: Analyzing trace with hash -549007950, now seen corresponding path program 1 times [2023-12-25 09:45:17,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:17,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582497992] [2023-12-25 09:45:17,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:17,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:17,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:17,128 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 09:45:17,130 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 09:45:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:17,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:45:17,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:18,280 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 09:45:18,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:18,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582497992] [2023-12-25 09:45:18,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582497992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:18,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:18,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:18,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666759280] [2023-12-25 09:45:18,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:18,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:45:18,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:18,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:45:18,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:45:18,282 INFO L87 Difference]: Start difference. First operand 49579 states and 67212 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 09:45:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:21,014 INFO L93 Difference]: Finished difference Result 120255 states and 166666 transitions. [2023-12-25 09:45:21,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:45:21,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2023-12-25 09:45:21,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:21,124 INFO L225 Difference]: With dead ends: 120255 [2023-12-25 09:45:21,124 INFO L226 Difference]: Without dead ends: 84320 [2023-12-25 09:45:21,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:45:21,169 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 4743 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:21,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 2950 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 09:45:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84320 states. [2023-12-25 09:45:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84320 to 49087. [2023-12-25 09:45:22,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49087 states, 49086 states have (on average 1.356354153933912) internal successors, (66578), 49086 states have internal predecessors, (66578), 0 states have call successors, (0), 0 states 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 09:45:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49087 states to 49087 states and 66578 transitions. [2023-12-25 09:45:22,098 INFO L78 Accepts]: Start accepts. Automaton has 49087 states and 66578 transitions. Word has length 82 [2023-12-25 09:45:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:22,099 INFO L495 AbstractCegarLoop]: Abstraction has 49087 states and 66578 transitions. [2023-12-25 09:45:22,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 09:45:22,099 INFO L276 IsEmpty]: Start isEmpty. Operand 49087 states and 66578 transitions. [2023-12-25 09:45:22,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 09:45:22,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:22,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:22,132 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 09:45:22,320 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 09:45:22,321 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:22,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:22,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1566606395, now seen corresponding path program 1 times [2023-12-25 09:45:22,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:22,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147079007] [2023-12-25 09:45:22,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:22,322 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 09:45:22,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:22,323 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 09:45:22,324 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 09:45:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:22,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:45:22,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:23,109 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 09:45:23,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:23,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:23,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147079007] [2023-12-25 09:45:23,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147079007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:23,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:23,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:45:23,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568266204] [2023-12-25 09:45:23,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:23,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:45:23,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:23,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:45:23,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:45:23,111 INFO L87 Difference]: Start difference. First operand 49087 states and 66578 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:25,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:25,578 INFO L93 Difference]: Finished difference Result 62016 states and 84550 transitions. [2023-12-25 09:45:25,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:45:25,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-25 09:45:25,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:25,655 INFO L225 Difference]: With dead ends: 62016 [2023-12-25 09:45:25,655 INFO L226 Difference]: Without dead ends: 52255 [2023-12-25 09:45:25,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 09:45:25,684 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3129 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:25,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3129 Valid, 2147 Invalid, 1748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 09:45:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52255 states. [2023-12-25 09:45:26,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52255 to 47821. [2023-12-25 09:45:26,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47821 states, 47820 states have (on average 1.3572563780844835) internal successors, (64904), 47820 states have internal predecessors, (64904), 0 states have call successors, (0), 0 states 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 09:45:26,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47821 states to 47821 states and 64904 transitions. [2023-12-25 09:45:26,550 INFO L78 Accepts]: Start accepts. Automaton has 47821 states and 64904 transitions. Word has length 83 [2023-12-25 09:45:26,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:26,550 INFO L495 AbstractCegarLoop]: Abstraction has 47821 states and 64904 transitions. [2023-12-25 09:45:26,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:26,550 INFO L276 IsEmpty]: Start isEmpty. Operand 47821 states and 64904 transitions. [2023-12-25 09:45:26,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 09:45:26,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:26,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:26,578 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 09:45:26,775 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 09:45:26,775 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:26,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:26,776 INFO L85 PathProgramCache]: Analyzing trace with hash 387359865, now seen corresponding path program 1 times [2023-12-25 09:45:26,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:26,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148238103] [2023-12-25 09:45:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:26,776 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 09:45:26,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:26,778 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 09:45:26,779 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 09:45:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:27,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:45:27,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:27,815 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 09:45:27,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:27,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:27,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148238103] [2023-12-25 09:45:27,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148238103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:27,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:27,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:27,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780843180] [2023-12-25 09:45:27,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:27,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:45:27,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:27,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:45:27,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:45:27,817 INFO L87 Difference]: Start difference. First operand 47821 states and 64904 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:31,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:31,328 INFO L93 Difference]: Finished difference Result 81024 states and 111690 transitions. [2023-12-25 09:45:31,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:45:31,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-25 09:45:31,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:31,410 INFO L225 Difference]: With dead ends: 81024 [2023-12-25 09:45:31,410 INFO L226 Difference]: Without dead ends: 64603 [2023-12-25 09:45:31,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:45:31,439 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 3069 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:31,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3069 Valid, 3153 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 09:45:31,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64603 states. [2023-12-25 09:45:32,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64603 to 47797. [2023-12-25 09:45:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47797 states, 47796 states have (on average 1.3569964013724998) internal successors, (64859), 47796 states have internal predecessors, (64859), 0 states have call successors, (0), 0 states 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 09:45:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47797 states to 47797 states and 64859 transitions. [2023-12-25 09:45:32,148 INFO L78 Accepts]: Start accepts. Automaton has 47797 states and 64859 transitions. Word has length 83 [2023-12-25 09:45:32,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:32,148 INFO L495 AbstractCegarLoop]: Abstraction has 47797 states and 64859 transitions. [2023-12-25 09:45:32,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:32,148 INFO L276 IsEmpty]: Start isEmpty. Operand 47797 states and 64859 transitions. [2023-12-25 09:45:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 09:45:32,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:32,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:32,169 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 09:45:32,364 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 09:45:32,365 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:32,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash -311508338, now seen corresponding path program 1 times [2023-12-25 09:45:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:32,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130614013] [2023-12-25 09:45:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:32,366 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 09:45:32,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:32,367 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 09:45:32,368 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 09:45:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:33,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:45:33,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:33,167 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 09:45:33,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:33,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:33,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130614013] [2023-12-25 09:45:33,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130614013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:33,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:33,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:45:33,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512906604] [2023-12-25 09:45:33,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:33,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:45:33,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:33,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:45:33,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:45:33,180 INFO L87 Difference]: Start difference. First operand 47797 states and 64859 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:34,741 INFO L93 Difference]: Finished difference Result 197389 states and 272206 transitions. [2023-12-25 09:45:34,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:45:34,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-25 09:45:34,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:35,054 INFO L225 Difference]: With dead ends: 197389 [2023-12-25 09:45:35,054 INFO L226 Difference]: Without dead ends: 162250 [2023-12-25 09:45:35,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:45:35,130 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 2732 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:35,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 2088 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:45:35,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162250 states. [2023-12-25 09:45:36,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162250 to 47865. [2023-12-25 09:45:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47865 states, 47864 states have (on average 1.3491977268928632) internal successors, (64578), 47864 states have internal predecessors, (64578), 0 states have call successors, (0), 0 states 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 09:45:36,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47865 states to 47865 states and 64578 transitions. [2023-12-25 09:45:36,726 INFO L78 Accepts]: Start accepts. Automaton has 47865 states and 64578 transitions. Word has length 83 [2023-12-25 09:45:36,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:36,727 INFO L495 AbstractCegarLoop]: Abstraction has 47865 states and 64578 transitions. [2023-12-25 09:45:36,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:36,727 INFO L276 IsEmpty]: Start isEmpty. Operand 47865 states and 64578 transitions. [2023-12-25 09:45:36,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 09:45:36,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:36,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:36,750 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 (20)] Ended with exit code 0 [2023-12-25 09:45:36,944 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 09:45:36,944 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:36,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:36,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1964622793, now seen corresponding path program 1 times [2023-12-25 09:45:36,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:36,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534859821] [2023-12-25 09:45:36,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:36,945 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 09:45:36,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:36,946 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 09:45:36,947 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 09:45:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:37,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:45:37,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:38,011 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 09:45:38,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:38,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:38,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534859821] [2023-12-25 09:45:38,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534859821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:38,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:38,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:38,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45351978] [2023-12-25 09:45:38,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:38,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:45:38,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:38,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:45:38,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:45:38,012 INFO L87 Difference]: Start difference. First operand 47865 states and 64578 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:40,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:40,936 INFO L93 Difference]: Finished difference Result 98426 states and 135382 transitions. [2023-12-25 09:45:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:45:40,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-25 09:45:40,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:41,030 INFO L225 Difference]: With dead ends: 98426 [2023-12-25 09:45:41,031 INFO L226 Difference]: Without dead ends: 73361 [2023-12-25 09:45:41,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:45:41,068 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 4510 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4510 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:41,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4510 Valid, 3044 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 09:45:41,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73361 states. [2023-12-25 09:45:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73361 to 47806. [2023-12-25 09:45:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47806 states, 47805 states have (on average 1.3490639054492208) internal successors, (64492), 47805 states have internal predecessors, (64492), 0 states have call successors, (0), 0 states 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 09:45:41,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47806 states to 47806 states and 64492 transitions. [2023-12-25 09:45:41,844 INFO L78 Accepts]: Start accepts. Automaton has 47806 states and 64492 transitions. Word has length 83 [2023-12-25 09:45:41,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:41,844 INFO L495 AbstractCegarLoop]: Abstraction has 47806 states and 64492 transitions. [2023-12-25 09:45:41,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:41,845 INFO L276 IsEmpty]: Start isEmpty. Operand 47806 states and 64492 transitions. [2023-12-25 09:45:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 09:45:41,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:41,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:41,864 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 09:45:42,060 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 09:45:42,060 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:42,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:42,061 INFO L85 PathProgramCache]: Analyzing trace with hash -6255838, now seen corresponding path program 1 times [2023-12-25 09:45:42,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:42,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237351427] [2023-12-25 09:45:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:42,061 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 09:45:42,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:42,062 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 09:45:42,063 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 09:45:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:42,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:45:42,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:43,063 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 09:45:43,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:43,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:43,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237351427] [2023-12-25 09:45:43,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237351427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:43,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:43,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:43,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536237682] [2023-12-25 09:45:43,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:43,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:45:43,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:45:43,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:45:43,071 INFO L87 Difference]: Start difference. First operand 47806 states and 64492 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:46,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:46,228 INFO L93 Difference]: Finished difference Result 109796 states and 151264 transitions. [2023-12-25 09:45:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:45:46,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-25 09:45:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:46,326 INFO L225 Difference]: With dead ends: 109796 [2023-12-25 09:45:46,326 INFO L226 Difference]: Without dead ends: 78873 [2023-12-25 09:45:46,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:45:46,353 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 3419 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3419 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:46,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3419 Valid, 3203 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 09:45:46,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78873 states. [2023-12-25 09:45:47,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78873 to 47718. [2023-12-25 09:45:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47718 states, 47717 states have (on average 1.34899511704424) internal successors, (64370), 47717 states have internal predecessors, (64370), 0 states have call successors, (0), 0 states 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 09:45:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47718 states to 47718 states and 64370 transitions. [2023-12-25 09:45:47,129 INFO L78 Accepts]: Start accepts. Automaton has 47718 states and 64370 transitions. Word has length 83 [2023-12-25 09:45:47,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:47,129 INFO L495 AbstractCegarLoop]: Abstraction has 47718 states and 64370 transitions. [2023-12-25 09:45:47,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 47718 states and 64370 transitions. [2023-12-25 09:45:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 09:45:47,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:47,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:47,153 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 09:45:47,347 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 09:45:47,347 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:47,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:47,348 INFO L85 PathProgramCache]: Analyzing trace with hash -430941920, now seen corresponding path program 1 times [2023-12-25 09:45:47,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:47,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841738455] [2023-12-25 09:45:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:47,349 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 09:45:47,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:47,350 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 09:45:47,350 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 09:45:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:47,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:45:47,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:48,432 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 09:45:48,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:48,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:48,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841738455] [2023-12-25 09:45:48,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841738455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:48,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:48,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:48,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336377452] [2023-12-25 09:45:48,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:48,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:45:48,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:48,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:45:48,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:45:48,434 INFO L87 Difference]: Start difference. First operand 47718 states and 64370 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:51,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:51,351 INFO L93 Difference]: Finished difference Result 110029 states and 151524 transitions. [2023-12-25 09:45:51,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:45:51,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-25 09:45:51,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:51,489 INFO L225 Difference]: With dead ends: 110029 [2023-12-25 09:45:51,489 INFO L226 Difference]: Without dead ends: 78464 [2023-12-25 09:45:51,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:45:51,533 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 3405 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3405 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:51,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3405 Valid, 3217 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2063 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 09:45:51,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78464 states. [2023-12-25 09:45:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78464 to 47309. [2023-12-25 09:45:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47309 states, 47308 states have (on average 1.3495814661368055) internal successors, (63846), 47308 states have internal predecessors, (63846), 0 states have call successors, (0), 0 states 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 09:45:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47309 states to 47309 states and 63846 transitions. [2023-12-25 09:45:52,319 INFO L78 Accepts]: Start accepts. Automaton has 47309 states and 63846 transitions. Word has length 83 [2023-12-25 09:45:52,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:52,319 INFO L495 AbstractCegarLoop]: Abstraction has 47309 states and 63846 transitions. [2023-12-25 09:45:52,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 09:45:52,319 INFO L276 IsEmpty]: Start isEmpty. Operand 47309 states and 63846 transitions. [2023-12-25 09:45:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:45:52,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:52,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:52,338 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 09:45:52,534 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 09:45:52,534 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:52,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:52,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2041320560, now seen corresponding path program 1 times [2023-12-25 09:45:52,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:52,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773121366] [2023-12-25 09:45:52,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:52,535 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 09:45:52,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:52,536 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 09:45:52,538 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 09:45:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:53,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:45:53,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:53,719 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 09:45:53,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:53,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:53,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773121366] [2023-12-25 09:45:53,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773121366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:53,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:53,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 09:45:53,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352663397] [2023-12-25 09:45:53,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:53,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:45:53,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:53,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:45:53,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:45:53,720 INFO L87 Difference]: Start difference. First operand 47309 states and 63846 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:45:55,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:55,918 INFO L93 Difference]: Finished difference Result 161919 states and 223889 transitions. [2023-12-25 09:45:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:45:55,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-25 09:45:55,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:56,120 INFO L225 Difference]: With dead ends: 161919 [2023-12-25 09:45:56,120 INFO L226 Difference]: Without dead ends: 124930 [2023-12-25 09:45:56,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:45:56,151 INFO L413 NwaCegarLoop]: 1139 mSDtfsCounter, 4504 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4504 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:56,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4504 Valid, 5538 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:45:56,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124930 states. [2023-12-25 09:45:57,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124930 to 62673. [2023-12-25 09:45:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62673 states, 62672 states have (on average 1.3660326780699514) internal successors, (85612), 62672 states have internal predecessors, (85612), 0 states have call successors, (0), 0 states 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 09:45:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62673 states to 62673 states and 85612 transitions. [2023-12-25 09:45:57,486 INFO L78 Accepts]: Start accepts. Automaton has 62673 states and 85612 transitions. Word has length 84 [2023-12-25 09:45:57,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:57,486 INFO L495 AbstractCegarLoop]: Abstraction has 62673 states and 85612 transitions. [2023-12-25 09:45:57,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:45:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 62673 states and 85612 transitions. [2023-12-25 09:45:57,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:45:57,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:57,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:57,505 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 09:45:57,700 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 09:45:57,700 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:57,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2002596814, now seen corresponding path program 1 times [2023-12-25 09:45:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:57,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465938230] [2023-12-25 09:45:57,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:57,701 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 09:45:57,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:57,703 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 09:45:57,704 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 09:45:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:58,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:45:58,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:58,888 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 09:45:58,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:58,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:58,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465938230] [2023-12-25 09:45:58,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465938230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:58,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:58,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:58,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803672362] [2023-12-25 09:45:58,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:58,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:45:58,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:58,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:45:58,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:45:58,891 INFO L87 Difference]: Start difference. First operand 62673 states and 85612 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:02,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:02,279 INFO L93 Difference]: Finished difference Result 145697 states and 202183 transitions. [2023-12-25 09:46:02,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:46:02,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-25 09:46:02,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:02,421 INFO L225 Difference]: With dead ends: 145697 [2023-12-25 09:46:02,421 INFO L226 Difference]: Without dead ends: 103988 [2023-12-25 09:46:02,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:46:02,462 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 4214 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:02,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 3185 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 09:46:02,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103988 states. [2023-12-25 09:46:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103988 to 62421. [2023-12-25 09:46:03,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62421 states, 62420 states have (on average 1.3662127523229735) internal successors, (85279), 62420 states have internal predecessors, (85279), 0 states have call successors, (0), 0 states 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 09:46:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62421 states to 62421 states and 85279 transitions. [2023-12-25 09:46:03,740 INFO L78 Accepts]: Start accepts. Automaton has 62421 states and 85279 transitions. Word has length 84 [2023-12-25 09:46:03,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:03,740 INFO L495 AbstractCegarLoop]: Abstraction has 62421 states and 85279 transitions. [2023-12-25 09:46:03,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 62421 states and 85279 transitions. [2023-12-25 09:46:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:46:03,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:03,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:03,759 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 (25)] Ended with exit code 0 [2023-12-25 09:46:03,953 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 09:46:03,954 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:03,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:03,954 INFO L85 PathProgramCache]: Analyzing trace with hash -2066696383, now seen corresponding path program 1 times [2023-12-25 09:46:03,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:03,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008661381] [2023-12-25 09:46:03,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:03,955 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 09:46:03,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:03,956 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 09:46:03,958 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 09:46:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:04,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:46:04,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:05,891 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 09:46:05,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:05,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:05,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008661381] [2023-12-25 09:46:05,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008661381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:05,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:05,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-25 09:46:05,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761958826] [2023-12-25 09:46:05,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:05,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 09:46:05,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:05,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 09:46:05,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 09:46:05,893 INFO L87 Difference]: Start difference. First operand 62421 states and 85279 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:08,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:08,888 INFO L93 Difference]: Finished difference Result 171567 states and 237720 transitions. [2023-12-25 09:46:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 09:46:08,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-25 09:46:08,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:09,055 INFO L225 Difference]: With dead ends: 171567 [2023-12-25 09:46:09,056 INFO L226 Difference]: Without dead ends: 117449 [2023-12-25 09:46:09,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:46:09,119 INFO L413 NwaCegarLoop]: 1085 mSDtfsCounter, 5495 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5495 SdHoareTripleChecker+Valid, 6537 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:09,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5495 Valid, 6537 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 09:46:09,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117449 states. [2023-12-25 09:46:10,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117449 to 92550. [2023-12-25 09:46:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92550 states, 92549 states have (on average 1.38153842829204) internal successors, (127860), 92549 states have internal predecessors, (127860), 0 states have call successors, (0), 0 states 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 09:46:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92550 states to 92550 states and 127860 transitions. [2023-12-25 09:46:10,583 INFO L78 Accepts]: Start accepts. Automaton has 92550 states and 127860 transitions. Word has length 84 [2023-12-25 09:46:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:10,583 INFO L495 AbstractCegarLoop]: Abstraction has 92550 states and 127860 transitions. [2023-12-25 09:46:10,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 92550 states and 127860 transitions. [2023-12-25 09:46:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:46:10,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:10,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:10,600 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 09:46:10,800 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 09:46:10,801 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:10,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:10,802 INFO L85 PathProgramCache]: Analyzing trace with hash 149419378, now seen corresponding path program 1 times [2023-12-25 09:46:10,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:10,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191652297] [2023-12-25 09:46:10,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:10,803 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 09:46:10,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:10,804 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 09:46:10,805 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 09:46:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:11,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:46:11,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:11,436 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 09:46:11,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:11,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:11,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191652297] [2023-12-25 09:46:11,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191652297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:11,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:11,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:46:11,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26872994] [2023-12-25 09:46:11,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:11,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:46:11,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:11,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:46:11,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:46:11,438 INFO L87 Difference]: Start difference. First operand 92550 states and 127860 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:13,826 INFO L93 Difference]: Finished difference Result 458937 states and 631532 transitions. [2023-12-25 09:46:13,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:46:13,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-25 09:46:13,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:14,930 INFO L225 Difference]: With dead ends: 458937 [2023-12-25 09:46:14,931 INFO L226 Difference]: Without dead ends: 426171 [2023-12-25 09:46:14,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:46:15,000 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 3646 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:15,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 1959 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:46:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426171 states. [2023-12-25 09:46:18,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426171 to 92540. [2023-12-25 09:46:18,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92540 states, 92539 states have (on average 1.3815148207782664) internal successors, (127844), 92539 states have internal predecessors, (127844), 0 states have call successors, (0), 0 states 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 09:46:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92540 states to 92540 states and 127844 transitions. [2023-12-25 09:46:19,045 INFO L78 Accepts]: Start accepts. Automaton has 92540 states and 127844 transitions. Word has length 84 [2023-12-25 09:46:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:19,046 INFO L495 AbstractCegarLoop]: Abstraction has 92540 states and 127844 transitions. [2023-12-25 09:46:19,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 92540 states and 127844 transitions. [2023-12-25 09:46:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:46:19,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:19,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:19,069 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 (27)] Forceful destruction successful, exit code 0 [2023-12-25 09:46:19,264 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 09:46:19,265 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:19,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash -129808984, now seen corresponding path program 1 times [2023-12-25 09:46:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:19,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708835441] [2023-12-25 09:46:19,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:19,267 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 09:46:19,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:19,268 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 09:46:19,269 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 09:46:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:19,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:46:19,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:19,972 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 09:46:19,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:19,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:19,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708835441] [2023-12-25 09:46:19,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708835441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:19,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:19,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:46:19,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131503413] [2023-12-25 09:46:19,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:19,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:46:19,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:19,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:46:19,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:46:19,974 INFO L87 Difference]: Start difference. First operand 92540 states and 127844 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:22,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:22,625 INFO L93 Difference]: Finished difference Result 401397 states and 553062 transitions. [2023-12-25 09:46:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:46:22,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-25 09:46:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:23,610 INFO L225 Difference]: With dead ends: 401397 [2023-12-25 09:46:23,611 INFO L226 Difference]: Without dead ends: 365012 [2023-12-25 09:46:23,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:46:23,661 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 2242 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:23,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 1945 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 09:46:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365012 states. [2023-12-25 09:46:26,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365012 to 92339. [2023-12-25 09:46:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92339 states, 92338 states have (on average 1.3815980419762177) internal successors, (127574), 92338 states have internal predecessors, (127574), 0 states have call successors, (0), 0 states 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 09:46:26,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92339 states to 92339 states and 127574 transitions. [2023-12-25 09:46:26,863 INFO L78 Accepts]: Start accepts. Automaton has 92339 states and 127574 transitions. Word has length 84 [2023-12-25 09:46:26,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:26,864 INFO L495 AbstractCegarLoop]: Abstraction has 92339 states and 127574 transitions. [2023-12-25 09:46:26,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:26,864 INFO L276 IsEmpty]: Start isEmpty. Operand 92339 states and 127574 transitions. [2023-12-25 09:46:26,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:46:26,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:26,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:26,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 09:46:27,075 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 09:46:27,076 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:27,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1802094322, now seen corresponding path program 1 times [2023-12-25 09:46:27,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:27,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481738285] [2023-12-25 09:46:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:27,077 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 09:46:27,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:27,078 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 09:46:27,080 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 09:46:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:27,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 09:46:27,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:28,743 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 09:46:28,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:28,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:28,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481738285] [2023-12-25 09:46:28,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481738285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:28,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:28,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 09:46:28,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216218060] [2023-12-25 09:46:28,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:28,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 09:46:28,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:28,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 09:46:28,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:46:28,745 INFO L87 Difference]: Start difference. First operand 92339 states and 127574 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:31,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:31,685 INFO L93 Difference]: Finished difference Result 277540 states and 387908 transitions. [2023-12-25 09:46:31,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:46:31,686 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-25 09:46:31,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:32,177 INFO L225 Difference]: With dead ends: 277540 [2023-12-25 09:46:32,177 INFO L226 Difference]: Without dead ends: 187380 [2023-12-25 09:46:32,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:46:32,237 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 3269 mSDsluCounter, 2965 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 3597 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:32,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3269 Valid, 3597 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 09:46:32,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187380 states. [2023-12-25 09:46:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187380 to 135970. [2023-12-25 09:46:34,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135970 states, 135969 states have (on average 1.3978333296560246) internal successors, (190062), 135969 states have internal predecessors, (190062), 0 states have call successors, (0), 0 states 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 09:46:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135970 states to 135970 states and 190062 transitions. [2023-12-25 09:46:34,338 INFO L78 Accepts]: Start accepts. Automaton has 135970 states and 190062 transitions. Word has length 84 [2023-12-25 09:46:34,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:34,338 INFO L495 AbstractCegarLoop]: Abstraction has 135970 states and 190062 transitions. [2023-12-25 09:46:34,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:34,339 INFO L276 IsEmpty]: Start isEmpty. Operand 135970 states and 190062 transitions. [2023-12-25 09:46:34,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:46:34,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:34,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:34,355 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 09:46:34,548 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 09:46:34,548 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:34,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:34,549 INFO L85 PathProgramCache]: Analyzing trace with hash -3353923, now seen corresponding path program 1 times [2023-12-25 09:46:34,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:34,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999895156] [2023-12-25 09:46:34,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:34,550 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 09:46:34,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:34,551 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 09:46:34,552 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 09:46:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:35,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:46:35,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:36,635 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 09:46:36,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:36,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:36,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999895156] [2023-12-25 09:46:36,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999895156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:36,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:36,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-25 09:46:36,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385388274] [2023-12-25 09:46:36,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:36,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 09:46:36,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:36,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 09:46:36,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 09:46:36,637 INFO L87 Difference]: Start difference. First operand 135970 states and 190062 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:39,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:39,718 INFO L93 Difference]: Finished difference Result 357126 states and 501127 transitions. [2023-12-25 09:46:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 09:46:39,718 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-25 09:46:39,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:40,419 INFO L225 Difference]: With dead ends: 357126 [2023-12-25 09:46:40,419 INFO L226 Difference]: Without dead ends: 227862 [2023-12-25 09:46:40,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:46:40,480 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2636 mSDsluCounter, 3908 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2636 SdHoareTripleChecker+Valid, 4515 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:40,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2636 Valid, 4515 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 09:46:40,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227862 states. [2023-12-25 09:46:43,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227862 to 190807. [2023-12-25 09:46:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190807 states, 190806 states have (on average 1.4023930065092294) internal successors, (267585), 190806 states have internal predecessors, (267585), 0 states have call successors, (0), 0 states 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 09:46:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190807 states to 190807 states and 267585 transitions. [2023-12-25 09:46:43,736 INFO L78 Accepts]: Start accepts. Automaton has 190807 states and 267585 transitions. Word has length 84 [2023-12-25 09:46:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:43,737 INFO L495 AbstractCegarLoop]: Abstraction has 190807 states and 267585 transitions. [2023-12-25 09:46:43,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 190807 states and 267585 transitions. [2023-12-25 09:46:43,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:46:43,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:43,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:43,752 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 09:46:43,946 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 09:46:43,947 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:43,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:43,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1757562269, now seen corresponding path program 1 times [2023-12-25 09:46:43,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:43,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39762061] [2023-12-25 09:46:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:43,948 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 09:46:43,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:43,949 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 09:46:43,950 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 09:46:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:44,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 09:46:44,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:45,700 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 09:46:45,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:45,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:45,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39762061] [2023-12-25 09:46:45,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39762061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:45,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:45,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 09:46:45,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924410080] [2023-12-25 09:46:45,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:45,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 09:46:45,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:45,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 09:46:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:46:45,702 INFO L87 Difference]: Start difference. First operand 190807 states and 267585 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:47,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:47,856 INFO L93 Difference]: Finished difference Result 362056 states and 507098 transitions. [2023-12-25 09:46:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:46:47,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-25 09:46:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:48,326 INFO L225 Difference]: With dead ends: 362056 [2023-12-25 09:46:48,326 INFO L226 Difference]: Without dead ends: 244635 [2023-12-25 09:46:48,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:46:48,435 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 3109 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3109 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:48,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3109 Valid, 2610 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:46:48,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244635 states. [2023-12-25 09:46:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244635 to 203358. [2023-12-25 09:46:51,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203358 states, 203357 states have (on average 1.4023171073530787) internal successors, (285171), 203357 states have internal predecessors, (285171), 0 states have call successors, (0), 0 states 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 09:46:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203358 states to 203358 states and 285171 transitions. [2023-12-25 09:46:52,217 INFO L78 Accepts]: Start accepts. Automaton has 203358 states and 285171 transitions. Word has length 84 [2023-12-25 09:46:52,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:52,217 INFO L495 AbstractCegarLoop]: Abstraction has 203358 states and 285171 transitions. [2023-12-25 09:46:52,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 09:46:52,218 INFO L276 IsEmpty]: Start isEmpty. Operand 203358 states and 285171 transitions. [2023-12-25 09:46:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 09:46:52,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:52,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:52,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-25 09:46:52,809 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 09:46:52,809 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:52,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:52,811 INFO L85 PathProgramCache]: Analyzing trace with hash -711704820, now seen corresponding path program 1 times [2023-12-25 09:46:52,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:52,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789087798] [2023-12-25 09:46:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:52,811 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 09:46:52,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:52,814 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 09:46:52,816 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 09:46:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:53,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:46:53,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:53,810 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 09:46:53,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:53,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:53,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789087798] [2023-12-25 09:46:53,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789087798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:53,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:53,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:46:53,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431596556] [2023-12-25 09:46:53,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:53,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:46:53,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:53,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:46:53,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:46:53,812 INFO L87 Difference]: Start difference. First operand 203358 states and 285171 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 09:46:56,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:56,643 INFO L93 Difference]: Finished difference Result 409154 states and 573989 transitions. [2023-12-25 09:46:56,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:46:56,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-25 09:46:56,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:57,121 INFO L225 Difference]: With dead ends: 409154 [2023-12-25 09:46:57,121 INFO L226 Difference]: Without dead ends: 241619 [2023-12-25 09:46:57,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:46:57,233 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 2268 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:57,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 1727 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 09:46:57,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241619 states. [2023-12-25 09:47:00,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241619 to 188828. [2023-12-25 09:47:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188828 states, 188827 states have (on average 1.4012879514052545) internal successors, (264601), 188827 states have internal predecessors, (264601), 0 states have call successors, (0), 0 states 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 09:47:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188828 states to 188828 states and 264601 transitions. [2023-12-25 09:47:00,602 INFO L78 Accepts]: Start accepts. Automaton has 188828 states and 264601 transitions. Word has length 103 [2023-12-25 09:47:00,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:47:00,602 INFO L495 AbstractCegarLoop]: Abstraction has 188828 states and 264601 transitions. [2023-12-25 09:47:00,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 09:47:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 188828 states and 264601 transitions. [2023-12-25 09:47:00,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 09:47:00,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:47:00,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:47:00,666 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 09:47:00,865 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 09:47:00,866 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:47:00,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:47:00,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1389174741, now seen corresponding path program 1 times [2023-12-25 09:47:00,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:47:00,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632784660] [2023-12-25 09:47:00,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:47:00,867 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 09:47:00,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:47:00,869 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 09:47:00,902 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 09:47:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:47:01,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:47:01,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:47:02,027 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 09:47:02,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:47:02,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:47:02,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632784660] [2023-12-25 09:47:02,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632784660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:47:02,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:47:02,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:47:02,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130219905] [2023-12-25 09:47:02,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:47:02,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:47:02,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:47:02,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:47:02,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:47:02,029 INFO L87 Difference]: Start difference. First operand 188828 states and 264601 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 09:47:04,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:47:04,236 INFO L93 Difference]: Finished difference Result 324126 states and 454296 transitions. [2023-12-25 09:47:04,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:47:04,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-25 09:47:04,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:47:04,948 INFO L225 Difference]: With dead ends: 324126 [2023-12-25 09:47:04,948 INFO L226 Difference]: Without dead ends: 215177 [2023-12-25 09:47:05,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:47:05,026 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 1607 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:47:05,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 1779 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 09:47:05,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215177 states. [2023-12-25 09:47:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215177 to 188712. [2023-12-25 09:47:07,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188712 states, 188711 states have (on average 1.4008987287439525) internal successors, (264365), 188711 states have internal predecessors, (264365), 0 states have call successors, (0), 0 states 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 09:47:07,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188712 states to 188712 states and 264365 transitions. [2023-12-25 09:47:07,885 INFO L78 Accepts]: Start accepts. Automaton has 188712 states and 264365 transitions. Word has length 103 [2023-12-25 09:47:07,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:47:07,886 INFO L495 AbstractCegarLoop]: Abstraction has 188712 states and 264365 transitions. [2023-12-25 09:47:07,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 09:47:07,886 INFO L276 IsEmpty]: Start isEmpty. Operand 188712 states and 264365 transitions. [2023-12-25 09:47:07,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 09:47:07,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:47:07,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:47:07,952 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 09:47:08,147 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 09:47:08,147 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:47:08,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:47:08,148 INFO L85 PathProgramCache]: Analyzing trace with hash -593174658, now seen corresponding path program 1 times [2023-12-25 09:47:08,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:47:08,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386872432] [2023-12-25 09:47:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:47:08,149 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 09:47:08,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:47:08,150 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 09:47:08,150 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 09:47:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:47:08,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:47:08,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:47:09,331 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 09:47:09,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:47:09,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:47:09,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386872432] [2023-12-25 09:47:09,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386872432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:47:09,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:47:09,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:47:09,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612357459] [2023-12-25 09:47:09,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:47:09,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:47:09,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:47:09,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:47:09,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:47:09,332 INFO L87 Difference]: Start difference. First operand 188712 states and 264365 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 09:47:12,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:47:12,109 INFO L93 Difference]: Finished difference Result 430707 states and 603512 transitions. [2023-12-25 09:47:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:47:12,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-25 09:47:12,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:47:12,735 INFO L225 Difference]: With dead ends: 430707 [2023-12-25 09:47:12,735 INFO L226 Difference]: Without dead ends: 254199 [2023-12-25 09:47:12,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:47:12,867 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 2317 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:47:12,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 1734 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:47:13,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254199 states. [2023-12-25 09:47:15,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254199 to 188415. [2023-12-25 09:47:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188415 states, 188414 states have (on average 1.4010742301527488) internal successors, (263982), 188414 states have internal predecessors, (263982), 0 states have call successors, (0), 0 states 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 09:47:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188415 states to 188415 states and 263982 transitions. [2023-12-25 09:47:16,286 INFO L78 Accepts]: Start accepts. Automaton has 188415 states and 263982 transitions. Word has length 103 [2023-12-25 09:47:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:47:16,287 INFO L495 AbstractCegarLoop]: Abstraction has 188415 states and 263982 transitions. [2023-12-25 09:47:16,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 09:47:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 188415 states and 263982 transitions. [2023-12-25 09:47:16,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 09:47:16,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:47:16,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:47:16,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-25 09:47:16,542 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 09:47:16,543 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:47:16,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:47:16,543 INFO L85 PathProgramCache]: Analyzing trace with hash 561374260, now seen corresponding path program 1 times [2023-12-25 09:47:16,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:47:16,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729391518] [2023-12-25 09:47:16,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:47:16,544 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 09:47:16,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:47:16,545 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 09:47:16,547 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 09:47:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:47:17,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:47:17,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:47:17,693 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 09:47:17,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:47:17,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:47:17,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729391518] [2023-12-25 09:47:17,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729391518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:47:17,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:47:17,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:47:17,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18134552] [2023-12-25 09:47:17,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:47:17,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:47:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:47:17,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:47:17,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:47:17,695 INFO L87 Difference]: Start difference. First operand 188415 states and 263982 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 09:47:20,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:47:20,656 INFO L93 Difference]: Finished difference Result 444366 states and 622392 transitions. [2023-12-25 09:47:20,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:47:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-25 09:47:20,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:47:21,152 INFO L225 Difference]: With dead ends: 444366 [2023-12-25 09:47:21,152 INFO L226 Difference]: Without dead ends: 258652 [2023-12-25 09:47:21,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:47:21,271 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 1731 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:47:21,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1731 Valid, 1758 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:47:21,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258652 states. [2023-12-25 09:47:24,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258652 to 188131. [2023-12-25 09:47:24,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188131 states, 188130 states have (on average 1.401344814755754) internal successors, (263635), 188130 states have internal predecessors, (263635), 0 states have call successors, (0), 0 states 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 09:47:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188131 states to 188131 states and 263635 transitions. [2023-12-25 09:47:25,058 INFO L78 Accepts]: Start accepts. Automaton has 188131 states and 263635 transitions. Word has length 103 [2023-12-25 09:47:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:47:25,058 INFO L495 AbstractCegarLoop]: Abstraction has 188131 states and 263635 transitions. [2023-12-25 09:47:25,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 09:47:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 188131 states and 263635 transitions. [2023-12-25 09:47:25,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 09:47:25,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:47:25,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:47:25,176 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 09:47:25,343 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 09:47:25,343 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:47:25,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:47:25,344 INFO L85 PathProgramCache]: Analyzing trace with hash -869038857, now seen corresponding path program 1 times [2023-12-25 09:47:25,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:47:25,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702787480] [2023-12-25 09:47:25,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:47:25,345 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 09:47:25,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:47:25,346 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 09:47:25,347 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 09:47:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:47:25,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:47:25,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:47:25,876 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 09:47:25,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:47:25,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:47:25,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702787480] [2023-12-25 09:47:25,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702787480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:47:25,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:47:25,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:47:25,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600082945] [2023-12-25 09:47:25,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:47:25,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:47:25,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:47:25,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:47:25,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:47:25,878 INFO L87 Difference]: Start difference. First operand 188131 states and 263635 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:47:27,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:47:27,852 INFO L93 Difference]: Finished difference Result 526904 states and 741328 transitions. [2023-12-25 09:47:27,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:47:27,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-25 09:47:27,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:47:28,526 INFO L225 Difference]: With dead ends: 526904 [2023-12-25 09:47:28,526 INFO L226 Difference]: Without dead ends: 342379 [2023-12-25 09:47:28,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:47:28,637 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 192 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:47:28,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1028 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:47:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342379 states. [2023-12-25 09:47:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342379 to 338545. [2023-12-25 09:47:33,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338545 states, 338544 states have (on average 1.3985626683680703) internal successors, (473475), 338544 states have internal predecessors, (473475), 0 states have call successors, (0), 0 states 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 09:47:34,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338545 states to 338545 states and 473475 transitions. [2023-12-25 09:47:34,091 INFO L78 Accepts]: Start accepts. Automaton has 338545 states and 473475 transitions. Word has length 104 [2023-12-25 09:47:34,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:47:34,091 INFO L495 AbstractCegarLoop]: Abstraction has 338545 states and 473475 transitions. [2023-12-25 09:47:34,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:47:34,092 INFO L276 IsEmpty]: Start isEmpty. Operand 338545 states and 473475 transitions. [2023-12-25 09:47:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 09:47:34,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:47:34,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:47:34,512 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 09:47:34,697 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 09:47:34,697 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:47:34,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:47:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash 181635140, now seen corresponding path program 1 times [2023-12-25 09:47:34,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:47:34,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437428625] [2023-12-25 09:47:34,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:47:34,699 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 09:47:34,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:47:34,700 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 09:47:34,700 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 09:47:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:47:35,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:47:35,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:47:35,218 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 09:47:35,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:47:35,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:47:35,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437428625] [2023-12-25 09:47:35,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437428625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:47:35,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:47:35,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:47:35,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272281583] [2023-12-25 09:47:35,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:47:35,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:47:35,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:47:35,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:47:35,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:47:35,220 INFO L87 Difference]: Start difference. First operand 338545 states and 473475 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 09:47:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:47:38,622 INFO L93 Difference]: Finished difference Result 934907 states and 1311085 transitions. [2023-12-25 09:47:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:47:38,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-25 09:47:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:47:39,856 INFO L225 Difference]: With dead ends: 934907 [2023-12-25 09:47:39,856 INFO L226 Difference]: Without dead ends: 599968 [2023-12-25 09:47:40,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 09:47:40,052 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 204 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:47:40,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 993 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:47:40,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599968 states.