/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:21:54,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:21:54,446 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 02:21:54,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:21:54,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:21:54,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:21:54,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:21:54,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:21:54,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:21:54,474 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:21:54,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:21:54,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:21:54,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:21:54,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:21:54,475 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:21:54,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:21:54,480 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:21:54,480 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:21:54,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:21:54,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:21:54,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:21:54,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:21:54,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:21:54,481 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:21:54,482 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:21:54,482 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:21:54,482 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:21:54,482 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:21:54,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:21:54,483 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:21:54,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:21:54,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:21:54,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:21:54,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:21:54,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:21:54,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:21:54,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:21:54,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:21:54,484 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:21:54,484 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:21:54,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:21:54,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:21:54,485 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:21:54,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:21:54,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:21:54,486 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:21:54,486 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:21:54,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:21:54,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:21:54,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:21:54,642 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:21:54,643 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:21:54,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label08.c [2023-12-22 02:21:55,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:21:56,091 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:21:56,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label08.c [2023-12-22 02:21:56,118 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5583f0a39/c65981bc9ab547d582734c57a1615326/FLAGa4c7f70f8 [2023-12-22 02:21:56,132 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5583f0a39/c65981bc9ab547d582734c57a1615326 [2023-12-22 02:21:56,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:21:56,135 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:21:56,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:21:56,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:21:56,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:21:56,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:21:56" (1/1) ... [2023-12-22 02:21:56,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecaf323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:56, skipping insertion in model container [2023-12-22 02:21:56,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:21:56" (1/1) ... [2023-12-22 02:21:56,269 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:21:56,566 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label08.c[26860,26873] [2023-12-22 02:21:56,591 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label08.c[30367,30380] [2023-12-22 02:21:57,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:21:57,154 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:21:57,197 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label08.c[26860,26873] [2023-12-22 02:21:57,202 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label08.c[30367,30380] [2023-12-22 02:21:57,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:21:57,539 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:21:57,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57 WrapperNode [2023-12-22 02:21:57,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:21:57,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:21:57,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:21:57,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:21:57,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:57,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:57,729 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5251 [2023-12-22 02:21:57,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:21:57,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:21:57,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:21:57,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:21:57,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:57,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:57,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:57,889 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 02:21:57,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:57,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:58,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:58,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:58,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:58,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:58,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:21:58,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:21:58,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:21:58,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:21:58,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (1/1) ... [2023-12-22 02:21:58,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:21:58,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:21:58,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 02:21:58,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 02:21:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:21:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:21:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:21:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:21:58,426 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:21:58,427 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:22:23,884 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:22:23,936 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:22:23,936 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 02:22:23,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:22:23 BoogieIcfgContainer [2023-12-22 02:22:23,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:22:23,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:22:23,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:22:23,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:22:23,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:21:56" (1/3) ... [2023-12-22 02:22:23,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb9a906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:22:23, skipping insertion in model container [2023-12-22 02:22:23,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:57" (2/3) ... [2023-12-22 02:22:23,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb9a906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:22:23, skipping insertion in model container [2023-12-22 02:22:23,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:22:23" (3/3) ... [2023-12-22 02:22:23,979 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label08.c [2023-12-22 02:22:23,991 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:22:23,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:22:24,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:22:24,037 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;@6f844a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:22:24,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:22:24,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 882 states, 879 states have (on average 1.9704209328782707) internal successors, (1732), 881 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:22:24,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-22 02:22:24,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:22:24,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:22:24,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:22:24,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:22:24,057 INFO L85 PathProgramCache]: Analyzing trace with hash -993602638, now seen corresponding path program 1 times [2023-12-22 02:22:24,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:22:24,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199027369] [2023-12-22 02:22:24,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:22:24,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:22:24,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:22:24,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:22:24,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 02:22:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:22:24,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 02:22:24,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:22:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:24,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:22:24,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:22:24,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199027369] [2023-12-22 02:22:24,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199027369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:22:24,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:22:24,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:22:24,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703044285] [2023-12-22 02:22:24,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:22:24,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 02:22:24,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:22:24,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 02:22:24,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 02:22:24,250 INFO L87 Difference]: Start difference. First operand has 882 states, 879 states have (on average 1.9704209328782707) internal successors, (1732), 881 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:22:24,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:22:24,323 INFO L93 Difference]: Finished difference Result 1699 states and 3336 transitions. [2023-12-22 02:22:24,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 02:22:24,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-22 02:22:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:22:24,337 INFO L225 Difference]: With dead ends: 1699 [2023-12-22 02:22:24,337 INFO L226 Difference]: Without dead ends: 878 [2023-12-22 02:22:24,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 02:22:24,344 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:22:24,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1661 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:22:24,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-22 02:22:24,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2023-12-22 02:22:24,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 876 states have (on average 1.8961187214611872) internal successors, (1661), 877 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:22:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1661 transitions. [2023-12-22 02:22:24,399 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1661 transitions. Word has length 27 [2023-12-22 02:22:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:22:24,399 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1661 transitions. [2023-12-22 02:22:24,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:22:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1661 transitions. [2023-12-22 02:22:24,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-22 02:22:24,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:22:24,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:22:24,417 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 [2023-12-22 02:22:24,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:22:24,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:22:24,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:22:24,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1495926324, now seen corresponding path program 1 times [2023-12-22 02:22:24,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:22:24,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233253391] [2023-12-22 02:22:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:22:24,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:22:24,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:22:24,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:22:24,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 02:22:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:22:24,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:22:24,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:22:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:24,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:22:24,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:22:24,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233253391] [2023-12-22 02:22:24,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233253391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:22:24,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:22:24,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:22:24,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367792691] [2023-12-22 02:22:24,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:22:24,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:22:24,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:22:24,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:22:24,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:22:24,735 INFO L87 Difference]: Start difference. First operand 878 states and 1661 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:22:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:22:24,830 INFO L93 Difference]: Finished difference Result 940 states and 1760 transitions. [2023-12-22 02:22:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:22:24,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-22 02:22:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:22:24,834 INFO L225 Difference]: With dead ends: 940 [2023-12-22 02:22:24,834 INFO L226 Difference]: Without dead ends: 878 [2023-12-22 02:22:24,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:22:24,835 INFO L413 NwaCegarLoop]: 1658 mSDtfsCounter, 0 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:22:24,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4909 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:22:24,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-22 02:22:24,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2023-12-22 02:22:24,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 876 states have (on average 1.82648401826484) internal successors, (1600), 877 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:22:24,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1600 transitions. [2023-12-22 02:22:24,850 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1600 transitions. Word has length 27 [2023-12-22 02:22:24,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:22:24,850 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1600 transitions. [2023-12-22 02:22:24,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:22:24,850 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1600 transitions. [2023-12-22 02:22:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-22 02:22:24,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:22:24,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:22:24,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 02:22:25,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:22:25,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:22:25,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:22:25,055 INFO L85 PathProgramCache]: Analyzing trace with hash 493929597, now seen corresponding path program 1 times [2023-12-22 02:22:25,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:22:25,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236608524] [2023-12-22 02:22:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:22:25,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:22:25,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:22:25,066 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:22:25,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 02:22:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:22:25,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:22:25,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:22:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:25,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:22:25,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:22:25,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236608524] [2023-12-22 02:22:25,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236608524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:22:25,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:22:25,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:22:25,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408097346] [2023-12-22 02:22:25,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:22:25,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:22:25,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:22:25,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:22:25,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:22:25,192 INFO L87 Difference]: Start difference. First operand 878 states and 1600 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:03,698 INFO L93 Difference]: Finished difference Result 2382 states and 4473 transitions. [2023-12-22 02:23:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:03,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2023-12-22 02:23:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:03,703 INFO L225 Difference]: With dead ends: 2382 [2023-12-22 02:23:03,703 INFO L226 Difference]: Without dead ends: 1629 [2023-12-22 02:23:03,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:03,705 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 928 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:03,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 705 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 38.3s Time] [2023-12-22 02:23:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2023-12-22 02:23:03,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1629. [2023-12-22 02:23:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1627 states have (on average 1.5408727719729565) internal successors, (2507), 1628 states have internal predecessors, (2507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2507 transitions. [2023-12-22 02:23:03,745 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2507 transitions. Word has length 29 [2023-12-22 02:23:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:03,745 INFO L495 AbstractCegarLoop]: Abstraction has 1629 states and 2507 transitions. [2023-12-22 02:23:03,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:03,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2507 transitions. [2023-12-22 02:23:03,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 02:23:03,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:03,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:03,751 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 [2023-12-22 02:23:03,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:03,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:03,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:03,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1969993060, now seen corresponding path program 1 times [2023-12-22 02:23:03,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:03,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622259967] [2023-12-22 02:23:03,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:03,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:03,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:03,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:03,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 02:23:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:04,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:23:04,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:06,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:06,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:06,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622259967] [2023-12-22 02:23:06,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622259967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:06,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:06,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-22 02:23:06,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136763720] [2023-12-22 02:23:06,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:06,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 02:23:06,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:06,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 02:23:06,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-22 02:23:06,007 INFO L87 Difference]: Start difference. First operand 1629 states and 2507 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:06,444 INFO L93 Difference]: Finished difference Result 2160 states and 3371 transitions. [2023-12-22 02:23:06,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 02:23:06,446 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-22 02:23:06,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:06,452 INFO L225 Difference]: With dead ends: 2160 [2023-12-22 02:23:06,452 INFO L226 Difference]: Without dead ends: 2101 [2023-12-22 02:23:06,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-22 02:23:06,455 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 6783 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6783 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:06,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6783 Valid, 2712 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:23:06,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2023-12-22 02:23:06,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 1743. [2023-12-22 02:23:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1741 states have (on average 1.5473865594485927) internal successors, (2694), 1742 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:06,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2694 transitions. [2023-12-22 02:23:06,514 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2694 transitions. Word has length 87 [2023-12-22 02:23:06,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:06,515 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2694 transitions. [2023-12-22 02:23:06,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:06,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2694 transitions. [2023-12-22 02:23:06,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-22 02:23:06,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:06,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:06,531 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 [2023-12-22 02:23:06,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:06,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:06,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:06,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1057453068, now seen corresponding path program 1 times [2023-12-22 02:23:06,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:06,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528584083] [2023-12-22 02:23:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:06,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:06,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:06,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:06,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 02:23:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:06,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:06,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:07,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:07,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:07,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528584083] [2023-12-22 02:23:07,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528584083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:07,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:07,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:07,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065011205] [2023-12-22 02:23:07,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:07,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:07,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:07,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:07,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:07,225 INFO L87 Difference]: Start difference. First operand 1743 states and 2694 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:07,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:07,276 INFO L93 Difference]: Finished difference Result 2073 states and 3232 transitions. [2023-12-22 02:23:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:07,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-22 02:23:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:07,282 INFO L225 Difference]: With dead ends: 2073 [2023-12-22 02:23:07,283 INFO L226 Difference]: Without dead ends: 1900 [2023-12-22 02:23:07,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:07,284 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1504 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:07,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1686 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2023-12-22 02:23:07,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1898. [2023-12-22 02:23:07,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1896 states have (on average 1.5522151898734178) internal successors, (2943), 1897 states have internal predecessors, (2943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2943 transitions. [2023-12-22 02:23:07,316 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2943 transitions. Word has length 89 [2023-12-22 02:23:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:07,318 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2943 transitions. [2023-12-22 02:23:07,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:07,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2943 transitions. [2023-12-22 02:23:07,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-22 02:23:07,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:07,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:07,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 02:23:07,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:07,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:07,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:07,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1516284571, now seen corresponding path program 1 times [2023-12-22 02:23:07,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:07,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121310463] [2023-12-22 02:23:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:07,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:07,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:07,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:07,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 02:23:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:07,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:23:07,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:07,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:07,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:07,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121310463] [2023-12-22 02:23:07,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121310463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:07,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:07,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:23:07,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352357887] [2023-12-22 02:23:07,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:07,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:23:07,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:07,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:23:07,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:23:07,708 INFO L87 Difference]: Start difference. First operand 1898 states and 2943 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:07,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:07,790 INFO L93 Difference]: Finished difference Result 1912 states and 2960 transitions. [2023-12-22 02:23:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:23:07,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-22 02:23:07,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:07,798 INFO L225 Difference]: With dead ends: 1912 [2023-12-22 02:23:07,798 INFO L226 Difference]: Without dead ends: 1910 [2023-12-22 02:23:07,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:23:07,800 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:07,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4780 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:23:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2023-12-22 02:23:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1906. [2023-12-22 02:23:07,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1906 states, 1904 states have (on average 1.5493697478991597) internal successors, (2950), 1905 states have internal predecessors, (2950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:07,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2950 transitions. [2023-12-22 02:23:07,834 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2950 transitions. Word has length 90 [2023-12-22 02:23:07,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:07,835 INFO L495 AbstractCegarLoop]: Abstraction has 1906 states and 2950 transitions. [2023-12-22 02:23:07,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:07,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2950 transitions. [2023-12-22 02:23:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:23:07,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:07,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:07,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-22 02:23:08,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:08,045 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:08,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:08,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1732737108, now seen corresponding path program 1 times [2023-12-22 02:23:08,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:08,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911869965] [2023-12-22 02:23:08,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:08,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:08,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:08,047 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:08,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 02:23:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:08,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:08,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:08,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:08,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911869965] [2023-12-22 02:23:08,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911869965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:08,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:08,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:08,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131708147] [2023-12-22 02:23:08,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:08,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:08,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:08,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:08,350 INFO L87 Difference]: Start difference. First operand 1906 states and 2950 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:08,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:08,398 INFO L93 Difference]: Finished difference Result 2254 states and 3510 transitions. [2023-12-22 02:23:08,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:08,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-22 02:23:08,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:08,404 INFO L225 Difference]: With dead ends: 2254 [2023-12-22 02:23:08,405 INFO L226 Difference]: Without dead ends: 2075 [2023-12-22 02:23:08,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:08,406 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 1524 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:08,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1773 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:08,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2023-12-22 02:23:08,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2073. [2023-12-22 02:23:08,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2071 states have (on average 1.5528730082085949) internal successors, (3216), 2072 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:08,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3216 transitions. [2023-12-22 02:23:08,444 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3216 transitions. Word has length 91 [2023-12-22 02:23:08,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:08,444 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 3216 transitions. [2023-12-22 02:23:08,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:08,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3216 transitions. [2023-12-22 02:23:08,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:23:08,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:08,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:08,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-22 02:23:08,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:08,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:08,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:08,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1658124628, now seen corresponding path program 1 times [2023-12-22 02:23:08,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:08,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338794402] [2023-12-22 02:23:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:08,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:08,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:08,652 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:08,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 02:23:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:08,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:08,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:08,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:08,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:08,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338794402] [2023-12-22 02:23:08,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338794402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:08,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:08,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:08,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332767374] [2023-12-22 02:23:08,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:08,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:08,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:08,892 INFO L87 Difference]: Start difference. First operand 2073 states and 3216 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:08,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:08,934 INFO L93 Difference]: Finished difference Result 3039 states and 4759 transitions. [2023-12-22 02:23:08,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:08,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-22 02:23:08,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:08,941 INFO L225 Difference]: With dead ends: 3039 [2023-12-22 02:23:08,941 INFO L226 Difference]: Without dead ends: 2538 [2023-12-22 02:23:08,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:08,943 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 1522 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:08,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:08,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2023-12-22 02:23:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2536. [2023-12-22 02:23:08,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2534 states have (on average 1.5572217837411209) internal successors, (3946), 2535 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:08,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3946 transitions. [2023-12-22 02:23:08,984 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3946 transitions. Word has length 91 [2023-12-22 02:23:08,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:08,984 INFO L495 AbstractCegarLoop]: Abstraction has 2536 states and 3946 transitions. [2023-12-22 02:23:08,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:08,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3946 transitions. [2023-12-22 02:23:08,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:23:08,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:08,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:08,989 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 [2023-12-22 02:23:09,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:09,190 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:09,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:09,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1313127252, now seen corresponding path program 1 times [2023-12-22 02:23:09,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:09,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227738448] [2023-12-22 02:23:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:09,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:09,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:09,192 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:09,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 02:23:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:09,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:09,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:09,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:09,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:09,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227738448] [2023-12-22 02:23:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227738448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:09,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:09,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:09,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648188123] [2023-12-22 02:23:09,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:09,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:09,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:09,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:09,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:09,393 INFO L87 Difference]: Start difference. First operand 2536 states and 3946 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:09,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:09,441 INFO L93 Difference]: Finished difference Result 4392 states and 6886 transitions. [2023-12-22 02:23:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:09,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-22 02:23:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:09,451 INFO L225 Difference]: With dead ends: 4392 [2023-12-22 02:23:09,451 INFO L226 Difference]: Without dead ends: 3428 [2023-12-22 02:23:09,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:09,454 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 1518 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:09,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1775 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:09,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2023-12-22 02:23:09,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 3426. [2023-12-22 02:23:09,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3424 states have (on average 1.5578271028037383) internal successors, (5334), 3425 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:09,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 5334 transitions. [2023-12-22 02:23:09,513 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 5334 transitions. Word has length 91 [2023-12-22 02:23:09,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:09,513 INFO L495 AbstractCegarLoop]: Abstraction has 3426 states and 5334 transitions. [2023-12-22 02:23:09,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:09,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 5334 transitions. [2023-12-22 02:23:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:23:09,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:09,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:09,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-22 02:23:09,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:09,718 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:09,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1581710420, now seen corresponding path program 1 times [2023-12-22 02:23:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:09,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114517008] [2023-12-22 02:23:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:09,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:09,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:09,720 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:09,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 02:23:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:09,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:09,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:09,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:09,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:09,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:09,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114517008] [2023-12-22 02:23:09,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114517008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:09,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:09,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:09,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587330950] [2023-12-22 02:23:09,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:09,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:09,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:09,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:09,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:09,952 INFO L87 Difference]: Start difference. First operand 3426 states and 5334 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:10,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:10,018 INFO L93 Difference]: Finished difference Result 6990 states and 10924 transitions. [2023-12-22 02:23:10,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:10,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-22 02:23:10,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:10,035 INFO L225 Difference]: With dead ends: 6990 [2023-12-22 02:23:10,035 INFO L226 Difference]: Without dead ends: 5136 [2023-12-22 02:23:10,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:10,040 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 1516 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:10,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1777 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:10,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2023-12-22 02:23:10,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 5134. [2023-12-22 02:23:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5134 states, 5132 states have (on average 1.5522213561964147) internal successors, (7966), 5133 states have internal predecessors, (7966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5134 states to 5134 states and 7966 transitions. [2023-12-22 02:23:10,149 INFO L78 Accepts]: Start accepts. Automaton has 5134 states and 7966 transitions. Word has length 91 [2023-12-22 02:23:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:10,149 INFO L495 AbstractCegarLoop]: Abstraction has 5134 states and 7966 transitions. [2023-12-22 02:23:10,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:10,150 INFO L276 IsEmpty]: Start isEmpty. Operand 5134 states and 7966 transitions. [2023-12-22 02:23:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:23:10,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:10,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:10,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 02:23:10,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:10,355 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:10,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:10,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1541766484, now seen corresponding path program 1 times [2023-12-22 02:23:10,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:10,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957354986] [2023-12-22 02:23:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:10,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:10,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:10,358 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:10,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 02:23:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:10,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:10,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:10,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:10,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957354986] [2023-12-22 02:23:10,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957354986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:10,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:10,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:10,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922368320] [2023-12-22 02:23:10,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:10,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:10,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:10,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:10,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:10,606 INFO L87 Difference]: Start difference. First operand 5134 states and 7966 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:10,693 INFO L93 Difference]: Finished difference Result 11970 states and 18568 transitions. [2023-12-22 02:23:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:10,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-22 02:23:10,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:10,713 INFO L225 Difference]: With dead ends: 11970 [2023-12-22 02:23:10,713 INFO L226 Difference]: Without dead ends: 8408 [2023-12-22 02:23:10,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:10,722 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 1514 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:10,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:10,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8408 states. [2023-12-22 02:23:10,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8408 to 8406. [2023-12-22 02:23:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8406 states, 8404 states have (on average 1.53998096144693) internal successors, (12942), 8405 states have internal predecessors, (12942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8406 states to 8406 states and 12942 transitions. [2023-12-22 02:23:10,864 INFO L78 Accepts]: Start accepts. Automaton has 8406 states and 12942 transitions. Word has length 91 [2023-12-22 02:23:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:10,864 INFO L495 AbstractCegarLoop]: Abstraction has 8406 states and 12942 transitions. [2023-12-22 02:23:10,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 8406 states and 12942 transitions. [2023-12-22 02:23:10,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:23:10,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:10,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:10,896 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 [2023-12-22 02:23:11,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:11,070 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:11,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:11,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2127544748, now seen corresponding path program 1 times [2023-12-22 02:23:11,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:11,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003821498] [2023-12-22 02:23:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:11,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:11,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:11,072 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:11,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 02:23:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:11,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:11,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:11,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:11,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:11,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003821498] [2023-12-22 02:23:11,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003821498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:11,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:11,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:11,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773757651] [2023-12-22 02:23:11,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:11,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:11,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:11,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:11,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:11,267 INFO L87 Difference]: Start difference. First operand 8406 states and 12942 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:11,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:11,442 INFO L93 Difference]: Finished difference Result 21498 states and 32992 transitions. [2023-12-22 02:23:11,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:11,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-22 02:23:11,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:11,464 INFO L225 Difference]: With dead ends: 21498 [2023-12-22 02:23:11,464 INFO L226 Difference]: Without dead ends: 14664 [2023-12-22 02:23:11,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:11,471 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1512 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:11,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1781 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:11,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14664 states. [2023-12-22 02:23:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14664 to 14662. [2023-12-22 02:23:11,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14662 states, 14660 states have (on average 1.5223738062755798) internal successors, (22318), 14661 states have internal predecessors, (22318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14662 states to 14662 states and 22318 transitions. [2023-12-22 02:23:11,689 INFO L78 Accepts]: Start accepts. Automaton has 14662 states and 22318 transitions. Word has length 91 [2023-12-22 02:23:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:11,689 INFO L495 AbstractCegarLoop]: Abstraction has 14662 states and 22318 transitions. [2023-12-22 02:23:11,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 14662 states and 22318 transitions. [2023-12-22 02:23:11,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:23:11,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:11,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:11,694 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 [2023-12-22 02:23:11,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:11,894 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:11,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:11,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1278689108, now seen corresponding path program 1 times [2023-12-22 02:23:11,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:11,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727551960] [2023-12-22 02:23:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:11,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:11,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:11,896 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:11,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 02:23:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:12,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:12,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:12,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:12,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:12,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727551960] [2023-12-22 02:23:12,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727551960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:12,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:12,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:12,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750365331] [2023-12-22 02:23:12,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:12,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:12,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:12,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:12,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:12,093 INFO L87 Difference]: Start difference. First operand 14662 states and 22318 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:12,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:12,344 INFO L93 Difference]: Finished difference Result 39690 states and 60112 transitions. [2023-12-22 02:23:12,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:12,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-22 02:23:12,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:12,381 INFO L225 Difference]: With dead ends: 39690 [2023-12-22 02:23:12,381 INFO L226 Difference]: Without dead ends: 26600 [2023-12-22 02:23:12,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:12,398 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 1510 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:12,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1783 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:12,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26600 states. [2023-12-22 02:23:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26600 to 26598. [2023-12-22 02:23:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26598 states, 26596 states have (on average 1.5009023913370432) internal successors, (39918), 26597 states have internal predecessors, (39918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26598 states to 26598 states and 39918 transitions. [2023-12-22 02:23:12,853 INFO L78 Accepts]: Start accepts. Automaton has 26598 states and 39918 transitions. Word has length 91 [2023-12-22 02:23:12,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:12,853 INFO L495 AbstractCegarLoop]: Abstraction has 26598 states and 39918 transitions. [2023-12-22 02:23:12,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 26598 states and 39918 transitions. [2023-12-22 02:23:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:23:12,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:12,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:12,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 02:23:13,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:13,059 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:13,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:13,060 INFO L85 PathProgramCache]: Analyzing trace with hash -902740564, now seen corresponding path program 1 times [2023-12-22 02:23:13,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:13,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269177175] [2023-12-22 02:23:13,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:13,061 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 [2023-12-22 02:23:13,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:13,070 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:13,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 02:23:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:13,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:13,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:13,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:13,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:13,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269177175] [2023-12-22 02:23:13,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269177175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:13,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:13,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:23:13,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873388522] [2023-12-22 02:23:13,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:13,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:13,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:13,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:13,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:13,332 INFO L87 Difference]: Start difference. First operand 26598 states and 39918 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:13,806 INFO L93 Difference]: Finished difference Result 74346 states and 110896 transitions. [2023-12-22 02:23:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:13,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-22 02:23:13,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:13,947 INFO L225 Difference]: With dead ends: 74346 [2023-12-22 02:23:13,947 INFO L226 Difference]: Without dead ends: 49320 [2023-12-22 02:23:13,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:13,968 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 1520 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:13,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1781 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:23:13,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49320 states. [2023-12-22 02:23:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49320 to 49318. [2023-12-22 02:23:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49318 states, 49316 states have (on average 1.4764782220780275) internal successors, (72814), 49317 states have internal predecessors, (72814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49318 states to 49318 states and 72814 transitions. [2023-12-22 02:23:14,951 INFO L78 Accepts]: Start accepts. Automaton has 49318 states and 72814 transitions. Word has length 91 [2023-12-22 02:23:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:14,951 INFO L495 AbstractCegarLoop]: Abstraction has 49318 states and 72814 transitions. [2023-12-22 02:23:14,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 49318 states and 72814 transitions. [2023-12-22 02:23:14,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 02:23:14,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:14,952 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:14,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 02:23:15,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:15,158 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:15,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash 287782797, now seen corresponding path program 1 times [2023-12-22 02:23:15,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:15,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955185751] [2023-12-22 02:23:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:15,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:15,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:15,160 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:15,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 02:23:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:15,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:15,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:15,504 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-22 02:23:15,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:15,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:15,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955185751] [2023-12-22 02:23:15,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955185751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:15,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:15,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:23:15,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182028884] [2023-12-22 02:23:15,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:15,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:15,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:15,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:15,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:15,506 INFO L87 Difference]: Start difference. First operand 49318 states and 72814 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:51,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:51,632 INFO L93 Difference]: Finished difference Result 52324 states and 77501 transitions. [2023-12-22 02:23:51,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:23:51,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-22 02:23:51,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:51,695 INFO L225 Difference]: With dead ends: 52324 [2023-12-22 02:23:51,696 INFO L226 Difference]: Without dead ends: 50820 [2023-12-22 02:23:51,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:51,708 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 887 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:51,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 633 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 35.3s Time] [2023-12-22 02:23:51,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50820 states. [2023-12-22 02:23:52,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50820 to 50820. [2023-12-22 02:23:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50820 states, 50818 states have (on average 1.467826360738321) internal successors, (74592), 50819 states have internal predecessors, (74592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:52,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50820 states to 50820 states and 74592 transitions. [2023-12-22 02:23:52,813 INFO L78 Accepts]: Start accepts. Automaton has 50820 states and 74592 transitions. Word has length 100 [2023-12-22 02:23:52,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:52,813 INFO L495 AbstractCegarLoop]: Abstraction has 50820 states and 74592 transitions. [2023-12-22 02:23:52,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:52,813 INFO L276 IsEmpty]: Start isEmpty. Operand 50820 states and 74592 transitions. [2023-12-22 02:23:52,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-22 02:23:52,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:52,814 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:52,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 02:23:53,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:53,017 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:53,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:53,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1137388100, now seen corresponding path program 1 times [2023-12-22 02:23:53,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:53,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947255977] [2023-12-22 02:23:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:53,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:23:53,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:53,020 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:23:53,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 02:23:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:53,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:23:53,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:53,249 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:53,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:23:53,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:53,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947255977] [2023-12-22 02:23:53,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947255977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:23:53,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:23:53,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:23:53,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007001205] [2023-12-22 02:23:53,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:23:53,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:23:53,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:53,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:23:53,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:23:53,250 INFO L87 Difference]: Start difference. First operand 50820 states and 74592 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:24:35,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:24:35,141 INFO L93 Difference]: Finished difference Result 56830 states and 82835 transitions. [2023-12-22 02:24:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:24:35,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2023-12-22 02:24:35,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:24:35,203 INFO L225 Difference]: With dead ends: 56830 [2023-12-22 02:24:35,203 INFO L226 Difference]: Without dead ends: 53824 [2023-12-22 02:24:35,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:24:35,217 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 844 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:24:35,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 838 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [587 Valid, 2469 Invalid, 0 Unknown, 0 Unchecked, 41.1s Time] [2023-12-22 02:24:35,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53824 states. [2023-12-22 02:24:36,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53824 to 53824. [2023-12-22 02:24:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53824 states, 53822 states have (on average 1.4505220913381145) internal successors, (78070), 53823 states have internal predecessors, (78070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:24:36,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53824 states to 53824 states and 78070 transitions. [2023-12-22 02:24:36,234 INFO L78 Accepts]: Start accepts. Automaton has 53824 states and 78070 transitions. Word has length 106 [2023-12-22 02:24:36,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:24:36,234 INFO L495 AbstractCegarLoop]: Abstraction has 53824 states and 78070 transitions. [2023-12-22 02:24:36,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:24:36,235 INFO L276 IsEmpty]: Start isEmpty. Operand 53824 states and 78070 transitions. [2023-12-22 02:24:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-22 02:24:36,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:24:36,239 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:24:36,258 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 (17)] Ended with exit code 0 [2023-12-22 02:24:36,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:24:36,452 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:24:36,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:24:36,453 INFO L85 PathProgramCache]: Analyzing trace with hash 727146630, now seen corresponding path program 1 times [2023-12-22 02:24:36,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:24:36,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022002418] [2023-12-22 02:24:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:24:36,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:24:36,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:24:36,456 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:24:36,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 02:24:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:24:36,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 02:24:36,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:24:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:24:37,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:24:37,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:24:37,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022002418] [2023-12-22 02:24:37,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022002418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:24:37,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:24:37,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:24:37,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979835258] [2023-12-22 02:24:37,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:24:37,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:24:37,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:24:37,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:24:37,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:24:37,070 INFO L87 Difference]: Start difference. First operand 53824 states and 78070 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:11,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:11,237 INFO L93 Difference]: Finished difference Result 62838 states and 89148 transitions. [2023-12-22 02:25:11,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:25:11,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-22 02:25:11,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:11,308 INFO L225 Difference]: With dead ends: 62838 [2023-12-22 02:25:11,308 INFO L226 Difference]: Without dead ends: 56828 [2023-12-22 02:25:11,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:11,320 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 833 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:11,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 850 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 33.5s Time] [2023-12-22 02:25:11,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56828 states. [2023-12-22 02:25:12,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56828 to 56828. [2023-12-22 02:25:12,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56828 states, 56826 states have (on average 1.4314574314574315) internal successors, (81344), 56827 states have internal predecessors, (81344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56828 states to 56828 states and 81344 transitions. [2023-12-22 02:25:12,391 INFO L78 Accepts]: Start accepts. Automaton has 56828 states and 81344 transitions. Word has length 110 [2023-12-22 02:25:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:12,391 INFO L495 AbstractCegarLoop]: Abstraction has 56828 states and 81344 transitions. [2023-12-22 02:25:12,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 56828 states and 81344 transitions. [2023-12-22 02:25:12,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-22 02:25:12,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:12,413 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:12,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 02:25:12,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:12,623 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:12,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:12,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1211234986, now seen corresponding path program 1 times [2023-12-22 02:25:12,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:12,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403047101] [2023-12-22 02:25:12,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:12,625 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:12,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:12,626 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:12,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 02:25:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:12,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:25:12,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:13,734 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:13,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:25:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:14,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:14,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403047101] [2023-12-22 02:25:14,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403047101] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:25:14,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:25:14,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:25:14,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690262473] [2023-12-22 02:25:14,130 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:25:14,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:25:14,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:25:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:25:14,131 INFO L87 Difference]: Start difference. First operand 56828 states and 81344 transitions. Second operand has 16 states, 16 states have (on average 13.125) internal successors, (210), 16 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:18,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:18,206 INFO L93 Difference]: Finished difference Result 161414 states and 234309 transitions. [2023-12-22 02:25:18,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:25:18,206 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.125) internal successors, (210), 16 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-22 02:25:18,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:18,401 INFO L225 Difference]: With dead ends: 161414 [2023-12-22 02:25:18,402 INFO L226 Difference]: Without dead ends: 128388 [2023-12-22 02:25:18,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 02:25:18,433 INFO L413 NwaCegarLoop]: 1615 mSDtfsCounter, 2523 mSDsluCounter, 12887 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 14502 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:18,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 14502 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-22 02:25:18,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128388 states. [2023-12-22 02:25:20,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128388 to 104572. [2023-12-22 02:25:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104572 states, 104570 states have (on average 1.4474514679162285) internal successors, (151360), 104571 states have internal predecessors, (151360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:21,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104572 states to 104572 states and 151360 transitions. [2023-12-22 02:25:21,153 INFO L78 Accepts]: Start accepts. Automaton has 104572 states and 151360 transitions. Word has length 115 [2023-12-22 02:25:21,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:21,153 INFO L495 AbstractCegarLoop]: Abstraction has 104572 states and 151360 transitions. [2023-12-22 02:25:21,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.125) internal successors, (210), 16 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 104572 states and 151360 transitions. [2023-12-22 02:25:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-22 02:25:21,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:21,303 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:21,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-22 02:25:21,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:21,504 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:21,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:21,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1136622506, now seen corresponding path program 1 times [2023-12-22 02:25:21,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:21,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220518162] [2023-12-22 02:25:21,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:21,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:21,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:21,508 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:21,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 02:25:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:21,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:25:21,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:21,722 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:21,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:25:21,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:21,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220518162] [2023-12-22 02:25:21,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220518162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:25:21,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:25:21,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:25:21,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085144275] [2023-12-22 02:25:21,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:25:21,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:25:21,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:21,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:25:21,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:21,724 INFO L87 Difference]: Start difference. First operand 104572 states and 151360 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:23,175 INFO L93 Difference]: Finished difference Result 170648 states and 249307 transitions. [2023-12-22 02:25:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:25:23,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2023-12-22 02:25:23,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:23,274 INFO L225 Difference]: With dead ends: 170648 [2023-12-22 02:25:23,274 INFO L226 Difference]: Without dead ends: 75158 [2023-12-22 02:25:23,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:23,319 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 71 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:23,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 3247 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:25:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75158 states. [2023-12-22 02:25:24,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75158 to 75151. [2023-12-22 02:25:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75151 states, 75149 states have (on average 1.4386751653381948) internal successors, (108115), 75150 states have internal predecessors, (108115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75151 states to 75151 states and 108115 transitions. [2023-12-22 02:25:25,155 INFO L78 Accepts]: Start accepts. Automaton has 75151 states and 108115 transitions. Word has length 115 [2023-12-22 02:25:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:25,155 INFO L495 AbstractCegarLoop]: Abstraction has 75151 states and 108115 transitions. [2023-12-22 02:25:25,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:25,155 INFO L276 IsEmpty]: Start isEmpty. Operand 75151 states and 108115 transitions. [2023-12-22 02:25:25,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-22 02:25:25,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:25,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:25,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 02:25:25,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:25,363 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:25,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash -781735622, now seen corresponding path program 1 times [2023-12-22 02:25:25,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:25,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639185291] [2023-12-22 02:25:25,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:25,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:25,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:25,365 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:25,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 02:25:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:25,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:25:25,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:25,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:25:25,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:25,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639185291] [2023-12-22 02:25:25,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639185291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:25:25,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:25:25,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:25:25,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140617785] [2023-12-22 02:25:25,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:25:25,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:25:25,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:25,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:25:25,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:25,539 INFO L87 Difference]: Start difference. First operand 75151 states and 108115 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:26,366 INFO L93 Difference]: Finished difference Result 108179 states and 156693 transitions. [2023-12-22 02:25:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:25:26,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-22 02:25:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:26,414 INFO L225 Difference]: With dead ends: 108179 [2023-12-22 02:25:26,414 INFO L226 Difference]: Without dead ends: 42129 [2023-12-22 02:25:26,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:26,433 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 67 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 3232 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:26,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 3232 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:25:26,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42129 states. [2023-12-22 02:25:27,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42129 to 42127. [2023-12-22 02:25:27,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42127 states, 42125 states have (on average 1.4042729970326409) internal successors, (59155), 42126 states have internal predecessors, (59155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:27,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42127 states to 42127 states and 59155 transitions. [2023-12-22 02:25:27,206 INFO L78 Accepts]: Start accepts. Automaton has 42127 states and 59155 transitions. Word has length 117 [2023-12-22 02:25:27,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:27,207 INFO L495 AbstractCegarLoop]: Abstraction has 42127 states and 59155 transitions. [2023-12-22 02:25:27,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:27,207 INFO L276 IsEmpty]: Start isEmpty. Operand 42127 states and 59155 transitions. [2023-12-22 02:25:27,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 02:25:27,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:27,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:27,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-22 02:25:27,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:27,413 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:27,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:27,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1714461230, now seen corresponding path program 1 times [2023-12-22 02:25:27,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:27,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767601670] [2023-12-22 02:25:27,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:27,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:27,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:27,415 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:27,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 02:25:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:27,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:25:27,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:28,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:25:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:29,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:29,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767601670] [2023-12-22 02:25:29,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767601670] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:25:29,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:25:29,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:25:29,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743914312] [2023-12-22 02:25:29,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:25:29,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:25:29,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:29,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:25:29,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:25:29,148 INFO L87 Difference]: Start difference. First operand 42127 states and 59155 transitions. Second operand has 16 states, 16 states have (on average 13.625) internal successors, (218), 16 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:32,407 INFO L93 Difference]: Finished difference Result 136983 states and 196631 transitions. [2023-12-22 02:25:32,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:25:32,408 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.625) internal successors, (218), 16 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-22 02:25:32,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:32,537 INFO L225 Difference]: With dead ends: 136983 [2023-12-22 02:25:32,538 INFO L226 Difference]: Without dead ends: 103957 [2023-12-22 02:25:32,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:25:32,557 INFO L413 NwaCegarLoop]: 1687 mSDtfsCounter, 3729 mSDsluCounter, 14491 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 16178 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:32,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3729 Valid, 16178 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-22 02:25:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103957 states. [2023-12-22 02:25:34,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103957 to 77455. [2023-12-22 02:25:34,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77455 states, 77453 states have (on average 1.4107523272177966) internal successors, (109267), 77454 states have internal predecessors, (109267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77455 states to 77455 states and 109267 transitions. [2023-12-22 02:25:34,523 INFO L78 Accepts]: Start accepts. Automaton has 77455 states and 109267 transitions. Word has length 118 [2023-12-22 02:25:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:34,524 INFO L495 AbstractCegarLoop]: Abstraction has 77455 states and 109267 transitions. [2023-12-22 02:25:34,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.625) internal successors, (218), 16 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 77455 states and 109267 transitions. [2023-12-22 02:25:34,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-22 02:25:34,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:34,527 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:34,531 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 [2023-12-22 02:25:34,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:34,731 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:34,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:34,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1171484834, now seen corresponding path program 1 times [2023-12-22 02:25:34,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:34,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152143347] [2023-12-22 02:25:34,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:34,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:34,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:34,733 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:34,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 02:25:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:34,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:25:34,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:34,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:25:34,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:34,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152143347] [2023-12-22 02:25:34,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152143347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:25:34,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:25:34,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:25:34,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222114952] [2023-12-22 02:25:34,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:25:34,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:25:34,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:34,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:25:34,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:34,926 INFO L87 Difference]: Start difference. First operand 77455 states and 109267 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:35,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:35,872 INFO L93 Difference]: Finished difference Result 111635 states and 158421 transitions. [2023-12-22 02:25:35,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:25:35,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-22 02:25:35,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:35,925 INFO L225 Difference]: With dead ends: 111635 [2023-12-22 02:25:35,925 INFO L226 Difference]: Without dead ends: 43281 [2023-12-22 02:25:35,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:35,963 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 63 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:35,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3217 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:25:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43281 states. [2023-12-22 02:25:36,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43281 to 43279. [2023-12-22 02:25:36,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43279 states, 43277 states have (on average 1.380201954848996) internal successors, (59731), 43278 states have internal predecessors, (59731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43279 states to 43279 states and 59731 transitions. [2023-12-22 02:25:36,976 INFO L78 Accepts]: Start accepts. Automaton has 43279 states and 59731 transitions. Word has length 120 [2023-12-22 02:25:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:36,985 INFO L495 AbstractCegarLoop]: Abstraction has 43279 states and 59731 transitions. [2023-12-22 02:25:36,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 43279 states and 59731 transitions. [2023-12-22 02:25:36,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:25:36,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:36,989 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:36,993 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 [2023-12-22 02:25:37,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:37,193 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:37,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:37,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1022445686, now seen corresponding path program 1 times [2023-12-22 02:25:37,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:37,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871049831] [2023-12-22 02:25:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:37,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:37,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:37,195 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:37,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 02:25:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:37,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:25:37,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:38,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:25:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:38,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:38,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871049831] [2023-12-22 02:25:38,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871049831] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:25:38,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:25:38,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:25:38,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267742614] [2023-12-22 02:25:38,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:25:38,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:25:38,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:25:38,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:25:38,752 INFO L87 Difference]: Start difference. First operand 43279 states and 59731 transitions. Second operand has 16 states, 16 states have (on average 14.125) internal successors, (226), 16 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:42,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:42,483 INFO L93 Difference]: Finished difference Result 138135 states and 194519 transitions. [2023-12-22 02:25:42,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:25:42,483 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.125) internal successors, (226), 16 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-22 02:25:42,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:42,630 INFO L225 Difference]: With dead ends: 138135 [2023-12-22 02:25:42,631 INFO L226 Difference]: Without dead ends: 103957 [2023-12-22 02:25:42,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:25:42,655 INFO L413 NwaCegarLoop]: 1669 mSDtfsCounter, 6947 mSDsluCounter, 12808 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6947 SdHoareTripleChecker+Valid, 14477 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:42,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6947 Valid, 14477 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-22 02:25:42,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103957 states. [2023-12-22 02:25:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103957 to 79759. [2023-12-22 02:25:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79759 states, 79757 states have (on average 1.3844427448374437) internal successors, (110419), 79758 states have internal predecessors, (110419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:44,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79759 states to 79759 states and 110419 transitions. [2023-12-22 02:25:44,843 INFO L78 Accepts]: Start accepts. Automaton has 79759 states and 110419 transitions. Word has length 121 [2023-12-22 02:25:44,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:44,843 INFO L495 AbstractCegarLoop]: Abstraction has 79759 states and 110419 transitions. [2023-12-22 02:25:44,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.125) internal successors, (226), 16 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:44,844 INFO L276 IsEmpty]: Start isEmpty. Operand 79759 states and 110419 transitions. [2023-12-22 02:25:44,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-22 02:25:44,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:44,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:44,853 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 [2023-12-22 02:25:45,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:45,054 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:45,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:45,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1709592582, now seen corresponding path program 1 times [2023-12-22 02:25:45,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:45,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042323035] [2023-12-22 02:25:45,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:45,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:45,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:45,056 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:45,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 02:25:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:45,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:25:45,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:45,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:25:45,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:45,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042323035] [2023-12-22 02:25:45,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042323035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:25:45,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:25:45,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:25:45,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603388132] [2023-12-22 02:25:45,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:25:45,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:25:45,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:45,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:25:45,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:45,290 INFO L87 Difference]: Start difference. First operand 79759 states and 110419 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:46,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:46,168 INFO L93 Difference]: Finished difference Result 115091 states and 160149 transitions. [2023-12-22 02:25:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:25:46,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-22 02:25:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:46,367 INFO L225 Difference]: With dead ends: 115091 [2023-12-22 02:25:46,367 INFO L226 Difference]: Without dead ends: 44433 [2023-12-22 02:25:46,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:46,392 INFO L413 NwaCegarLoop]: 1640 mSDtfsCounter, 59 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:46,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3202 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:25:46,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44433 states. [2023-12-22 02:25:47,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44433 to 44431. [2023-12-22 02:25:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44431 states, 44429 states have (on average 1.3573791892682707) internal successors, (60307), 44430 states have internal predecessors, (60307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:47,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44431 states to 44431 states and 60307 transitions. [2023-12-22 02:25:47,365 INFO L78 Accepts]: Start accepts. Automaton has 44431 states and 60307 transitions. Word has length 123 [2023-12-22 02:25:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:47,365 INFO L495 AbstractCegarLoop]: Abstraction has 44431 states and 60307 transitions. [2023-12-22 02:25:47,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:47,365 INFO L276 IsEmpty]: Start isEmpty. Operand 44431 states and 60307 transitions. [2023-12-22 02:25:47,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-22 02:25:47,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:47,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:47,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-22 02:25:47,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:47,572 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:47,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:47,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1981221602, now seen corresponding path program 1 times [2023-12-22 02:25:47,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:47,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269232751] [2023-12-22 02:25:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:47,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:47,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:47,574 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:47,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 02:25:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:47,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:25:47,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:48,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:25:48,905 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:48,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:48,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269232751] [2023-12-22 02:25:48,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269232751] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:25:48,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:25:48,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:25:48,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722565929] [2023-12-22 02:25:48,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:25:48,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:25:48,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:48,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:25:48,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:25:48,907 INFO L87 Difference]: Start difference. First operand 44431 states and 60307 transitions. Second operand has 16 states, 16 states have (on average 14.625) internal successors, (234), 16 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:52,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:52,111 INFO L93 Difference]: Finished difference Result 139287 states and 192407 transitions. [2023-12-22 02:25:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:25:52,111 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.625) internal successors, (234), 16 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2023-12-22 02:25:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:52,229 INFO L225 Difference]: With dead ends: 139287 [2023-12-22 02:25:52,229 INFO L226 Difference]: Without dead ends: 103957 [2023-12-22 02:25:52,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:25:52,253 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 2527 mSDsluCounter, 8105 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 9756 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:52,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2527 Valid, 9756 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 02:25:52,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103957 states. [2023-12-22 02:25:54,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103957 to 82063. [2023-12-22 02:25:54,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82063 states, 82061 states have (on average 1.3596105336274236) internal successors, (111571), 82062 states have internal predecessors, (111571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82063 states to 82063 states and 111571 transitions. [2023-12-22 02:25:54,484 INFO L78 Accepts]: Start accepts. Automaton has 82063 states and 111571 transitions. Word has length 124 [2023-12-22 02:25:54,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:54,484 INFO L495 AbstractCegarLoop]: Abstraction has 82063 states and 111571 transitions. [2023-12-22 02:25:54,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.625) internal successors, (234), 16 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 82063 states and 111571 transitions. [2023-12-22 02:25:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-22 02:25:54,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:54,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:54,494 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 [2023-12-22 02:25:54,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:54,692 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:54,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:54,693 INFO L85 PathProgramCache]: Analyzing trace with hash 4905642, now seen corresponding path program 1 times [2023-12-22 02:25:54,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:54,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983708065] [2023-12-22 02:25:54,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:54,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:54,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:54,695 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:54,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 02:25:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:54,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:25:54,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:54,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:25:54,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:54,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983708065] [2023-12-22 02:25:54,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983708065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:25:54,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:25:54,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:25:54,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223495757] [2023-12-22 02:25:54,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:25:54,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:25:54,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:54,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:25:54,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:54,879 INFO L87 Difference]: Start difference. First operand 82063 states and 111571 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:56,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:56,154 INFO L93 Difference]: Finished difference Result 118547 states and 161877 transitions. [2023-12-22 02:25:56,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:25:56,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2023-12-22 02:25:56,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:56,212 INFO L225 Difference]: With dead ends: 118547 [2023-12-22 02:25:56,212 INFO L226 Difference]: Without dead ends: 45585 [2023-12-22 02:25:56,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:25:56,241 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 55 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:56,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3187 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:25:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45585 states. [2023-12-22 02:25:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45585 to 45583. [2023-12-22 02:25:57,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45583 states, 45581 states have (on average 1.335710054628025) internal successors, (60883), 45582 states have internal predecessors, (60883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45583 states to 45583 states and 60883 transitions. [2023-12-22 02:25:57,437 INFO L78 Accepts]: Start accepts. Automaton has 45583 states and 60883 transitions. Word has length 126 [2023-12-22 02:25:57,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:57,437 INFO L495 AbstractCegarLoop]: Abstraction has 45583 states and 60883 transitions. [2023-12-22 02:25:57,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:25:57,438 INFO L276 IsEmpty]: Start isEmpty. Operand 45583 states and 60883 transitions. [2023-12-22 02:25:57,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-22 02:25:57,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:57,440 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:57,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-22 02:25:57,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:57,649 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:57,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:57,649 INFO L85 PathProgramCache]: Analyzing trace with hash 406950846, now seen corresponding path program 1 times [2023-12-22 02:25:57,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:57,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217179959] [2023-12-22 02:25:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:57,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:25:57,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:57,651 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:25:57,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 02:25:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:57,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:25:57,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:58,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:25:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:59,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217179959] [2023-12-22 02:25:59,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217179959] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:25:59,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:25:59,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:25:59,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117958796] [2023-12-22 02:25:59,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:25:59,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:25:59,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:25:59,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:25:59,502 INFO L87 Difference]: Start difference. First operand 45583 states and 60883 transitions. Second operand has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:03,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:26:03,460 INFO L93 Difference]: Finished difference Result 140439 states and 190295 transitions. [2023-12-22 02:26:03,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:26:03,461 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 0 states have call successors, (0), 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 127 [2023-12-22 02:26:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:26:03,587 INFO L225 Difference]: With dead ends: 140439 [2023-12-22 02:26:03,587 INFO L226 Difference]: Without dead ends: 103957 [2023-12-22 02:26:03,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:26:03,608 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 2294 mSDsluCounter, 12843 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 14476 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:26:03,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2294 Valid, 14476 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-22 02:26:03,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103957 states. [2023-12-22 02:26:05,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103957 to 84367. [2023-12-22 02:26:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84367 states, 84365 states have (on average 1.3361346529959106) internal successors, (112723), 84366 states have internal predecessors, (112723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84367 states to 84367 states and 112723 transitions. [2023-12-22 02:26:06,010 INFO L78 Accepts]: Start accepts. Automaton has 84367 states and 112723 transitions. Word has length 127 [2023-12-22 02:26:06,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:26:06,011 INFO L495 AbstractCegarLoop]: Abstraction has 84367 states and 112723 transitions. [2023-12-22 02:26:06,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 84367 states and 112723 transitions. [2023-12-22 02:26:06,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-22 02:26:06,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:26:06,016 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:26:06,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-22 02:26:06,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:06,223 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:26:06,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:26:06,223 INFO L85 PathProgramCache]: Analyzing trace with hash 293416146, now seen corresponding path program 1 times [2023-12-22 02:26:06,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:26:06,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617437215] [2023-12-22 02:26:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:26:06,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:06,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:26:06,225 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:26:06,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 02:26:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:26:06,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:26:06,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:26:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:06,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:26:06,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:26:06,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617437215] [2023-12-22 02:26:06,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617437215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:26:06,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:26:06,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:26:06,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016036834] [2023-12-22 02:26:06,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:26:06,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:26:06,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:26:06,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:26:06,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:26:06,417 INFO L87 Difference]: Start difference. First operand 84367 states and 112723 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:07,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:26:07,446 INFO L93 Difference]: Finished difference Result 122003 states and 163605 transitions. [2023-12-22 02:26:07,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:26:07,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2023-12-22 02:26:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:26:07,503 INFO L225 Difference]: With dead ends: 122003 [2023-12-22 02:26:07,504 INFO L226 Difference]: Without dead ends: 46737 [2023-12-22 02:26:07,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:26:07,544 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 51 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3172 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:26:07,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3172 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:26:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46737 states. [2023-12-22 02:26:08,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46737 to 46735. [2023-12-22 02:26:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46735 states, 46733 states have (on average 1.3151092375837203) internal successors, (61459), 46734 states have internal predecessors, (61459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:08,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46735 states to 46735 states and 61459 transitions. [2023-12-22 02:26:08,896 INFO L78 Accepts]: Start accepts. Automaton has 46735 states and 61459 transitions. Word has length 129 [2023-12-22 02:26:08,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:26:08,897 INFO L495 AbstractCegarLoop]: Abstraction has 46735 states and 61459 transitions. [2023-12-22 02:26:08,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:08,897 INFO L276 IsEmpty]: Start isEmpty. Operand 46735 states and 61459 transitions. [2023-12-22 02:26:08,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 02:26:08,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:26:08,900 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:26:08,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-22 02:26:09,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:09,104 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:26:09,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:26:09,104 INFO L85 PathProgramCache]: Analyzing trace with hash 800785814, now seen corresponding path program 1 times [2023-12-22 02:26:09,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:26:09,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024529306] [2023-12-22 02:26:09,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:26:09,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:09,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:26:09,106 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:26:09,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 02:26:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:26:09,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:26:09,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:26:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:10,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:26:10,625 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:10,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:26:10,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024529306] [2023-12-22 02:26:10,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024529306] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:26:10,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:26:10,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:26:10,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266580458] [2023-12-22 02:26:10,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:26:10,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:26:10,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:26:10,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:26:10,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:26:10,627 INFO L87 Difference]: Start difference. First operand 46735 states and 61459 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:14,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:26:14,625 INFO L93 Difference]: Finished difference Result 141591 states and 188183 transitions. [2023-12-22 02:26:14,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:26:14,626 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-22 02:26:14,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:26:14,756 INFO L225 Difference]: With dead ends: 141591 [2023-12-22 02:26:14,756 INFO L226 Difference]: Without dead ends: 103957 [2023-12-22 02:26:14,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:26:14,785 INFO L413 NwaCegarLoop]: 1615 mSDtfsCounter, 6631 mSDsluCounter, 12616 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6631 SdHoareTripleChecker+Valid, 14231 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:26:14,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6631 Valid, 14231 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 02:26:14,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103957 states. [2023-12-22 02:26:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103957 to 86671. [2023-12-22 02:26:17,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86671 states, 86669 states have (on average 1.3139069332748734) internal successors, (113875), 86670 states have internal predecessors, (113875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86671 states to 86671 states and 113875 transitions. [2023-12-22 02:26:17,438 INFO L78 Accepts]: Start accepts. Automaton has 86671 states and 113875 transitions. Word has length 130 [2023-12-22 02:26:17,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:26:17,438 INFO L495 AbstractCegarLoop]: Abstraction has 86671 states and 113875 transitions. [2023-12-22 02:26:17,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:17,438 INFO L276 IsEmpty]: Start isEmpty. Operand 86671 states and 113875 transitions. [2023-12-22 02:26:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-22 02:26:17,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:26:17,443 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:26:17,447 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 [2023-12-22 02:26:17,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:17,647 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:26:17,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:26:17,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2024258550, now seen corresponding path program 1 times [2023-12-22 02:26:17,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:26:17,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383480868] [2023-12-22 02:26:17,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:26:17,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:17,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:26:17,649 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:26:17,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 02:26:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:26:17,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:26:17,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:26:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:17,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:26:17,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:26:17,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383480868] [2023-12-22 02:26:17,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383480868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:26:17,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:26:17,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:26:17,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677073398] [2023-12-22 02:26:17,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:26:17,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:26:17,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:26:17,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:26:17,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:26:17,874 INFO L87 Difference]: Start difference. First operand 86671 states and 113875 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:19,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:26:19,023 INFO L93 Difference]: Finished difference Result 125459 states and 165333 transitions. [2023-12-22 02:26:19,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:26:19,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2023-12-22 02:26:19,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:26:19,083 INFO L225 Difference]: With dead ends: 125459 [2023-12-22 02:26:19,083 INFO L226 Difference]: Without dead ends: 47889 [2023-12-22 02:26:19,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:26:19,126 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 47 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:26:19,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3157 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:26:19,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47889 states. [2023-12-22 02:26:20,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47889 to 47887. [2023-12-22 02:26:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47887 states, 47885 states have (on average 1.295499634541088) internal successors, (62035), 47886 states have internal predecessors, (62035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:20,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47887 states to 47887 states and 62035 transitions. [2023-12-22 02:26:20,550 INFO L78 Accepts]: Start accepts. Automaton has 47887 states and 62035 transitions. Word has length 132 [2023-12-22 02:26:20,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:26:20,552 INFO L495 AbstractCegarLoop]: Abstraction has 47887 states and 62035 transitions. [2023-12-22 02:26:20,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:20,552 INFO L276 IsEmpty]: Start isEmpty. Operand 47887 states and 62035 transitions. [2023-12-22 02:26:20,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 02:26:20,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:26:20,556 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:26:20,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-22 02:26:20,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:20,760 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:26:20,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:26:20,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2003330574, now seen corresponding path program 1 times [2023-12-22 02:26:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:26:20,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283452411] [2023-12-22 02:26:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:26:20,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:20,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:26:20,769 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:26:20,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 02:26:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:26:20,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:26:20,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:26:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:22,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:26:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:22,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:26:22,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283452411] [2023-12-22 02:26:22,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283452411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:26:22,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:26:22,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:26:22,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676296343] [2023-12-22 02:26:22,632 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:26:22,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:26:22,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:26:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:26:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:26:22,633 INFO L87 Difference]: Start difference. First operand 47887 states and 62035 transitions. Second operand has 16 states, 16 states have (on average 16.125) internal successors, (258), 16 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:26,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:26:26,722 INFO L93 Difference]: Finished difference Result 142743 states and 186071 transitions. [2023-12-22 02:26:26,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:26:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.125) internal successors, (258), 16 states have internal predecessors, (258), 0 states have call successors, (0), 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 133 [2023-12-22 02:26:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:26:26,850 INFO L225 Difference]: With dead ends: 142743 [2023-12-22 02:26:26,850 INFO L226 Difference]: Without dead ends: 103957 [2023-12-22 02:26:26,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:26:26,871 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 6709 mSDsluCounter, 12580 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6709 SdHoareTripleChecker+Valid, 14177 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:26:26,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6709 Valid, 14177 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 02:26:26,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103957 states. [2023-12-22 02:26:29,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103957 to 88975. [2023-12-22 02:26:29,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88975 states, 88973 states have (on average 1.2928304092252705) internal successors, (115027), 88974 states have internal predecessors, (115027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:29,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88975 states to 88975 states and 115027 transitions. [2023-12-22 02:26:29,832 INFO L78 Accepts]: Start accepts. Automaton has 88975 states and 115027 transitions. Word has length 133 [2023-12-22 02:26:29,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:26:29,833 INFO L495 AbstractCegarLoop]: Abstraction has 88975 states and 115027 transitions. [2023-12-22 02:26:29,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.125) internal successors, (258), 16 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:29,833 INFO L276 IsEmpty]: Start isEmpty. Operand 88975 states and 115027 transitions. [2023-12-22 02:26:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 02:26:29,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:26:29,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:26:29,841 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 (32)] Ended with exit code 0 [2023-12-22 02:26:30,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:30,041 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:26:30,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:26:30,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1354547298, now seen corresponding path program 1 times [2023-12-22 02:26:30,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:26:30,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830862949] [2023-12-22 02:26:30,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:26:30,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:30,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:26:30,156 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:26:30,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 02:26:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:26:30,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:26:30,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:26:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:30,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:26:30,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:26:30,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830862949] [2023-12-22 02:26:30,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830862949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:26:30,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:26:30,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:26:30,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814447597] [2023-12-22 02:26:30,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:26:30,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:26:30,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:26:30,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:26:30,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:26:30,378 INFO L87 Difference]: Start difference. First operand 88975 states and 115027 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:26:31,810 INFO L93 Difference]: Finished difference Result 128793 states and 166718 transitions. [2023-12-22 02:26:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:26:31,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-22 02:26:31,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:26:31,869 INFO L225 Difference]: With dead ends: 128793 [2023-12-22 02:26:31,869 INFO L226 Difference]: Without dead ends: 48919 [2023-12-22 02:26:31,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:26:31,895 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 43 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:26:31,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3142 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:26:31,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48919 states. [2023-12-22 02:26:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48919 to 48917. [2023-12-22 02:26:33,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48917 states, 48915 states have (on average 1.2730041909434733) internal successors, (62269), 48916 states have internal predecessors, (62269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:33,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48917 states to 48917 states and 62269 transitions. [2023-12-22 02:26:33,417 INFO L78 Accepts]: Start accepts. Automaton has 48917 states and 62269 transitions. Word has length 135 [2023-12-22 02:26:33,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:26:33,417 INFO L495 AbstractCegarLoop]: Abstraction has 48917 states and 62269 transitions. [2023-12-22 02:26:33,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand 48917 states and 62269 transitions. [2023-12-22 02:26:33,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 02:26:33,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:26:33,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:26:33,430 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 (33)] Ended with exit code 0 [2023-12-22 02:26:33,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:33,626 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:26:33,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:26:33,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1516603978, now seen corresponding path program 1 times [2023-12-22 02:26:33,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:26:33,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551886264] [2023-12-22 02:26:33,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:26:33,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:33,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:26:33,628 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:26:33,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 02:26:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:26:33,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:26:33,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:26:34,757 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:34,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:26:35,197 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:26:35,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:26:35,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551886264] [2023-12-22 02:26:35,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551886264] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:26:35,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:26:35,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:26:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710694399] [2023-12-22 02:26:35,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:26:35,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:26:35,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:26:35,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:26:35,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:26:35,199 INFO L87 Difference]: Start difference. First operand 48917 states and 62269 transitions. Second operand has 16 states, 16 states have (on average 16.625) internal successors, (266), 16 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:38,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:26:38,551 INFO L93 Difference]: Finished difference Result 121759 states and 155336 transitions. [2023-12-22 02:26:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 02:26:38,552 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.625) internal successors, (266), 16 states have internal predecessors, (266), 0 states have call successors, (0), 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 136 [2023-12-22 02:26:38,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:26:38,649 INFO L225 Difference]: With dead ends: 121759 [2023-12-22 02:26:38,649 INFO L226 Difference]: Without dead ends: 81943 [2023-12-22 02:26:38,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 02:26:38,671 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 6717 mSDsluCounter, 7854 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6717 SdHoareTripleChecker+Valid, 9433 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:26:38,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6717 Valid, 9433 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:26:38,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81943 states. [2023-12-22 02:26:40,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81943 to 76949. [2023-12-22 02:26:41,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76949 states, 76947 states have (on average 1.2663521644768476) internal successors, (97442), 76948 states have internal predecessors, (97442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76949 states to 76949 states and 97442 transitions. [2023-12-22 02:26:41,134 INFO L78 Accepts]: Start accepts. Automaton has 76949 states and 97442 transitions. Word has length 136 [2023-12-22 02:26:41,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:26:41,135 INFO L495 AbstractCegarLoop]: Abstraction has 76949 states and 97442 transitions. [2023-12-22 02:26:41,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.625) internal successors, (266), 16 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:41,135 INFO L276 IsEmpty]: Start isEmpty. Operand 76949 states and 97442 transitions. [2023-12-22 02:26:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 02:26:41,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:26:41,141 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:26:41,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-22 02:26:41,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:41,346 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:26:41,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:26:41,346 INFO L85 PathProgramCache]: Analyzing trace with hash 535966530, now seen corresponding path program 1 times [2023-12-22 02:26:41,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:26:41,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394880962] [2023-12-22 02:26:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:26:41,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:41,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:26:41,348 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:26:41,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 02:26:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:26:41,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 02:26:41,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:26:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:26:41,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:26:42,144 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:26:42,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:26:42,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394880962] [2023-12-22 02:26:42,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394880962] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:26:42,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:26:42,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 02:26:42,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381388872] [2023-12-22 02:26:42,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:26:42,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:26:42,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:26:42,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:26:42,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:26:42,145 INFO L87 Difference]: Start difference. First operand 76949 states and 97442 transitions. Second operand has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:48,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:26:48,077 INFO L93 Difference]: Finished difference Result 271349 states and 341386 transitions. [2023-12-22 02:26:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:26:48,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 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 138 [2023-12-22 02:26:48,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:26:48,380 INFO L225 Difference]: With dead ends: 271349 [2023-12-22 02:26:48,380 INFO L226 Difference]: Without dead ends: 203501 [2023-12-22 02:26:48,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:26:48,441 INFO L413 NwaCegarLoop]: 1615 mSDtfsCounter, 1638 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:26:48,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 3473 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:26:48,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203501 states. [2023-12-22 02:26:55,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203501 to 200055. [2023-12-22 02:26:55,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200055 states, 200053 states have (on average 1.226994846365713) internal successors, (245464), 200054 states have internal predecessors, (245464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:56,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200055 states to 200055 states and 245464 transitions. [2023-12-22 02:26:56,148 INFO L78 Accepts]: Start accepts. Automaton has 200055 states and 245464 transitions. Word has length 138 [2023-12-22 02:26:56,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:26:56,148 INFO L495 AbstractCegarLoop]: Abstraction has 200055 states and 245464 transitions. [2023-12-22 02:26:56,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:26:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand 200055 states and 245464 transitions. [2023-12-22 02:26:56,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-22 02:26:56,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:26:56,169 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:26:56,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-12-22 02:26:56,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:56,392 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:26:56,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:26:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1098310329, now seen corresponding path program 1 times [2023-12-22 02:26:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:26:56,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233794405] [2023-12-22 02:26:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:26:56,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:26:56,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:26:56,413 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:26:56,428 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