/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.6.1.ufo.UNBOUNDED.pals+Problem12_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 01:21:58,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 01:21:58,085 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 01:21:58,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 01:21:58,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 01:21:58,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 01:21:58,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 01:21:58,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 01:21:58,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 01:21:58,114 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 01:21:58,114 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 01:21:58,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 01:21:58,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 01:21:58,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 01:21:58,116 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 01:21:58,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 01:21:58,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 01:21:58,116 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 01:21:58,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 01:21:58,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 01:21:58,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 01:21:58,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 01:21:58,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 01:21:58,117 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 01:21:58,118 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 01:21:58,118 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 01:21:58,118 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 01:21:58,118 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 01:21:58,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 01:21:58,118 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 01:21:58,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 01:21:58,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 01:21:58,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 01:21:58,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 01:21:58,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:21:58,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 01:21:58,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 01:21:58,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 01:21:58,120 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 01:21:58,120 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 01:21:58,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 01:21:58,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 01:21:58,120 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 01:21:58,120 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 01:21:58,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 01:21:58,121 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 01:21:58,121 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 01:21:58,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 01:21:58,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 01:21:58,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 01:21:58,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 01:21:58,337 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 01:21:58,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-22 01:21:59,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 01:21:59,597 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 01:21:59,597 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-22 01:21:59,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86944152/a437a99b2335421f96d80ba26231ebac/FLAG8721db14c [2023-12-22 01:21:59,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86944152/a437a99b2335421f96d80ba26231ebac [2023-12-22 01:21:59,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 01:21:59,643 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 01:21:59,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 01:21:59,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 01:21:59,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 01:21:59,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:21:59" (1/1) ... [2023-12-22 01:21:59,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379124c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:21:59, skipping insertion in model container [2023-12-22 01:21:59,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:21:59" (1/1) ... [2023-12-22 01:21:59,748 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 01:22:00,016 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.6.1.ufo.UNBOUNDED.pals+Problem12_label01.c[15547,15560] [2023-12-22 01:22:00,058 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.6.1.ufo.UNBOUNDED.pals+Problem12_label01.c[21102,21115] [2023-12-22 01:22:00,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:22:00,625 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 01:22:00,662 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.6.1.ufo.UNBOUNDED.pals+Problem12_label01.c[15547,15560] [2023-12-22 01:22:00,667 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.6.1.ufo.UNBOUNDED.pals+Problem12_label01.c[21102,21115] [2023-12-22 01:22:00,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:22:00,992 INFO L206 MainTranslator]: Completed translation [2023-12-22 01:22:00,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00 WrapperNode [2023-12-22 01:22:00,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 01:22:00,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 01:22:00,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 01:22:00,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 01:22:00,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,161 INFO L138 Inliner]: procedures = 39, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5125 [2023-12-22 01:22:01,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 01:22:01,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 01:22:01,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 01:22:01,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 01:22:01,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,260 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 01:22:01,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,334 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 01:22:01,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 01:22:01,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 01:22:01,421 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 01:22:01,422 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (1/1) ... [2023-12-22 01:22:01,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:22:01,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 01:22:01,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 01:22:01,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 01:22:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 01:22:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 01:22:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 01:22:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 01:22:01,552 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 01:22:01,554 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 01:22:25,557 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 01:22:25,598 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 01:22:25,598 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 01:22:25,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:22:25 BoogieIcfgContainer [2023-12-22 01:22:25,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 01:22:25,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 01:22:25,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 01:22:25,602 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 01:22:25,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:21:59" (1/3) ... [2023-12-22 01:22:25,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b9950c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:22:25, skipping insertion in model container [2023-12-22 01:22:25,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:22:00" (2/3) ... [2023-12-22 01:22:25,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b9950c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:22:25, skipping insertion in model container [2023-12-22 01:22:25,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:22:25" (3/3) ... [2023-12-22 01:22:25,604 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-22 01:22:25,615 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 01:22:25,616 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 01:22:25,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 01:22:25,672 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;@2214c442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 01:22:25,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 01:22:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 851 states, 848 states have (on average 1.9728773584905661) internal successors, (1673), 850 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:25,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:22:25,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:25,684 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] [2023-12-22 01:22:25,685 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:25,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:25,688 INFO L85 PathProgramCache]: Analyzing trace with hash -150309200, now seen corresponding path program 1 times [2023-12-22 01:22:25,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:25,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350897328] [2023-12-22 01:22:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:25,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:25,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:25,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:25,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 01:22:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:25,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 01:22:25,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:25,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:25,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:22:25,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:25,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350897328] [2023-12-22 01:22:25,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350897328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:22:25,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:22:25,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:22:25,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618740385] [2023-12-22 01:22:25,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:22:25,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 01:22:25,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:25,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 01:22:25,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:22:25,833 INFO L87 Difference]: Start difference. First operand has 851 states, 848 states have (on average 1.9728773584905661) internal successors, (1673), 850 states have internal predecessors, (1673), 0 states have call successors, (0), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:25,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:25,916 INFO L93 Difference]: Finished difference Result 1657 states and 3259 transitions. [2023-12-22 01:22:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 01:22:25,919 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-12-22 01:22:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:25,942 INFO L225 Difference]: With dead ends: 1657 [2023-12-22 01:22:25,943 INFO L226 Difference]: Without dead ends: 847 [2023-12-22 01:22:25,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:22:25,951 INFO L413 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:25,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1601 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:22:25,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-12-22 01:22:26,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2023-12-22 01:22:26,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 845 states have (on average 1.8958579881656805) internal successors, (1602), 846 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1602 transitions. [2023-12-22 01:22:26,037 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1602 transitions. Word has length 23 [2023-12-22 01:22:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:26,037 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1602 transitions. [2023-12-22 01:22:26,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1602 transitions. [2023-12-22 01:22:26,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:22:26,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:26,039 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] [2023-12-22 01:22:26,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 01:22:26,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:26,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:26,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:26,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1839252942, now seen corresponding path program 1 times [2023-12-22 01:22:26,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:26,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148936717] [2023-12-22 01:22:26,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:26,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:26,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:26,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:26,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 01:22:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:26,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:22:26,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:26,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:22:26,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148936717] [2023-12-22 01:22:26,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148936717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:22:26,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:22:26,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:22:26,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476233837] [2023-12-22 01:22:26,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:22:26,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:22:26,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:22:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:22:26,400 INFO L87 Difference]: Start difference. First operand 847 states and 1602 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:26,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:26,545 INFO L93 Difference]: Finished difference Result 899 states and 1684 transitions. [2023-12-22 01:22:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:22:26,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-12-22 01:22:26,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:26,548 INFO L225 Difference]: With dead ends: 899 [2023-12-22 01:22:26,548 INFO L226 Difference]: Without dead ends: 847 [2023-12-22 01:22:26,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:22:26,550 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:26,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4753 Invalid, 52 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:22:26,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-12-22 01:22:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2023-12-22 01:22:26,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 845 states have (on average 1.8485207100591716) internal successors, (1562), 846 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:26,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1562 transitions. [2023-12-22 01:22:26,574 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1562 transitions. Word has length 23 [2023-12-22 01:22:26,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:26,574 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1562 transitions. [2023-12-22 01:22:26,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1562 transitions. [2023-12-22 01:22:26,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-22 01:22:26,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:26,578 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] [2023-12-22 01:22:26,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 01:22:26,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:26,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:26,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:26,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1370291631, now seen corresponding path program 1 times [2023-12-22 01:22:26,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:26,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384862719] [2023-12-22 01:22:26,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:26,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:26,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:26,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:26,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 01:22:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:26,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:22:26,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:26,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:22:26,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:26,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384862719] [2023-12-22 01:22:26,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384862719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:22:26,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:22:26,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:22:26,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152030380] [2023-12-22 01:22:26,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:22:26,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:22:26,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:26,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:22:26,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:22:26,960 INFO L87 Difference]: Start difference. First operand 847 states and 1562 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:57,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:57,610 INFO L93 Difference]: Finished difference Result 2351 states and 4435 transitions. [2023-12-22 01:22:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:22:57,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-22 01:22:57,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:57,615 INFO L225 Difference]: With dead ends: 2351 [2023-12-22 01:22:57,615 INFO L226 Difference]: Without dead ends: 1598 [2023-12-22 01:22:57,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:22:57,616 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 855 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:57,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 344 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time] [2023-12-22 01:22:57,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2023-12-22 01:22:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1598. [2023-12-22 01:22:57,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1596 states have (on average 1.75) internal successors, (2793), 1597 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:57,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2793 transitions. [2023-12-22 01:22:57,639 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2793 transitions. Word has length 47 [2023-12-22 01:22:57,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:57,640 INFO L495 AbstractCegarLoop]: Abstraction has 1598 states and 2793 transitions. [2023-12-22 01:22:57,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:57,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2793 transitions. [2023-12-22 01:22:57,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 01:22:57,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:57,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:22:57,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 01:22:57,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:57,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:57,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:57,845 INFO L85 PathProgramCache]: Analyzing trace with hash -138573370, now seen corresponding path program 1 times [2023-12-22 01:22:57,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:57,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062697526] [2023-12-22 01:22:57,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:57,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:57,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:57,846 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:57,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 01:22:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:57,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:22:57,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:58,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:22:58,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:58,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062697526] [2023-12-22 01:22:58,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062697526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:22:58,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:22:58,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:22:58,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119759235] [2023-12-22 01:22:58,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:22:58,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:22:58,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:58,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:22:58,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:22:58,733 INFO L87 Difference]: Start difference. First operand 1598 states and 2793 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:58,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:58,984 INFO L93 Difference]: Finished difference Result 1941 states and 3346 transitions. [2023-12-22 01:22:58,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:22:58,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-22 01:22:58,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:58,991 INFO L225 Difference]: With dead ends: 1941 [2023-12-22 01:22:58,992 INFO L226 Difference]: Without dead ends: 1892 [2023-12-22 01:22:58,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:22:58,993 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 3377 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:58,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 2176 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:22:58,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2023-12-22 01:22:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1692. [2023-12-22 01:22:59,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1690 states have (on average 1.7431952662721895) internal successors, (2946), 1691 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:59,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2946 transitions. [2023-12-22 01:22:59,021 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2946 transitions. Word has length 62 [2023-12-22 01:22:59,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:59,023 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 2946 transitions. [2023-12-22 01:22:59,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2946 transitions. [2023-12-22 01:22:59,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 01:22:59,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:59,024 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] [2023-12-22 01:22:59,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 01:22:59,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:59,230 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:59,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash -157853578, now seen corresponding path program 1 times [2023-12-22 01:22:59,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:59,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467542162] [2023-12-22 01:22:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:59,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:59,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:59,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:59,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 01:22:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:59,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:22:59,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:59,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:59,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:22:59,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:59,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467542162] [2023-12-22 01:22:59,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467542162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:22:59,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:22:59,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:22:59,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076001821] [2023-12-22 01:22:59,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:22:59,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:22:59,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:59,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:22:59,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:22:59,383 INFO L87 Difference]: Start difference. First operand 1692 states and 2946 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:59,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:59,415 INFO L93 Difference]: Finished difference Result 1962 states and 3382 transitions. [2023-12-22 01:22:59,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:22:59,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-22 01:22:59,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:59,421 INFO L225 Difference]: With dead ends: 1962 [2023-12-22 01:22:59,421 INFO L226 Difference]: Without dead ends: 1819 [2023-12-22 01:22:59,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:22:59,422 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1490 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:59,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1626 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:22:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2023-12-22 01:22:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1814. [2023-12-22 01:22:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1812 states have (on average 1.7317880794701987) internal successors, (3138), 1813 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:59,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 3138 transitions. [2023-12-22 01:22:59,447 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 3138 transitions. Word has length 64 [2023-12-22 01:22:59,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:59,448 INFO L495 AbstractCegarLoop]: Abstraction has 1814 states and 3138 transitions. [2023-12-22 01:22:59,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:59,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 3138 transitions. [2023-12-22 01:22:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-22 01:22:59,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:59,454 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] [2023-12-22 01:22:59,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 01:22:59,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:59,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:59,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash -660671842, now seen corresponding path program 1 times [2023-12-22 01:22:59,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:59,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557079954] [2023-12-22 01:22:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:59,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:59,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:59,659 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:59,660 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 (7)] Waiting until timeout for monitored process [2023-12-22 01:22:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:59,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:22:59,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:59,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:22:59,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557079954] [2023-12-22 01:22:59,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557079954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:22:59,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:22:59,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:22:59,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959310544] [2023-12-22 01:22:59,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:22:59,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:22:59,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:59,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:22:59,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:22:59,755 INFO L87 Difference]: Start difference. First operand 1814 states and 3138 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:59,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:59,800 INFO L93 Difference]: Finished difference Result 1828 states and 3155 transitions. [2023-12-22 01:22:59,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:22:59,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-22 01:22:59,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:59,806 INFO L225 Difference]: With dead ends: 1828 [2023-12-22 01:22:59,806 INFO L226 Difference]: Without dead ends: 1826 [2023-12-22 01:22:59,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:22:59,807 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 1 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:59,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4666 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:22:59,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2023-12-22 01:22:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1822. [2023-12-22 01:22:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1820 states have (on average 1.728021978021978) internal successors, (3145), 1821 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 3145 transitions. [2023-12-22 01:22:59,829 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 3145 transitions. Word has length 65 [2023-12-22 01:22:59,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:59,829 INFO L495 AbstractCegarLoop]: Abstraction has 1822 states and 3145 transitions. [2023-12-22 01:22:59,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 3145 transitions. [2023-12-22 01:22:59,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:22:59,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:59,830 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] [2023-12-22 01:22:59,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:00,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:00,036 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:00,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:00,036 INFO L85 PathProgramCache]: Analyzing trace with hash -347652018, now seen corresponding path program 1 times [2023-12-22 01:23:00,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:00,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457427224] [2023-12-22 01:23:00,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:00,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:00,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:00,038 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:00,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 01:23:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:00,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:00,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:00,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:00,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:00,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457427224] [2023-12-22 01:23:00,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457427224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:00,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:00,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:00,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806212511] [2023-12-22 01:23:00,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:00,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:00,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:00,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:00,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:00,181 INFO L87 Difference]: Start difference. First operand 1822 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:00,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:00,217 INFO L93 Difference]: Finished difference Result 2344 states and 3965 transitions. [2023-12-22 01:23:00,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:00,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:23:00,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:00,222 INFO L225 Difference]: With dead ends: 2344 [2023-12-22 01:23:00,222 INFO L226 Difference]: Without dead ends: 2071 [2023-12-22 01:23:00,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:00,224 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1503 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:00,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1691 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:00,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2023-12-22 01:23:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 2069. [2023-12-22 01:23:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2067 states have (on average 1.7063376874697629) internal successors, (3527), 2068 states have internal predecessors, (3527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3527 transitions. [2023-12-22 01:23:00,253 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3527 transitions. Word has length 66 [2023-12-22 01:23:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:00,254 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 3527 transitions. [2023-12-22 01:23:00,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3527 transitions. [2023-12-22 01:23:00,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:00,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:00,255 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] [2023-12-22 01:23:00,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:00,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:00,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:00,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash -307708082, now seen corresponding path program 1 times [2023-12-22 01:23:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:00,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455779237] [2023-12-22 01:23:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:00,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:00,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:00,463 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:00,484 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 (9)] Waiting until timeout for monitored process [2023-12-22 01:23:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:00,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:00,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:00,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:00,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:00,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455779237] [2023-12-22 01:23:00,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455779237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:00,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:00,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:00,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673497641] [2023-12-22 01:23:00,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:00,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:00,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:00,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:00,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:00,591 INFO L87 Difference]: Start difference. First operand 2069 states and 3527 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:00,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:00,621 INFO L93 Difference]: Finished difference Result 3061 states and 5069 transitions. [2023-12-22 01:23:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:00,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:23:00,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:00,627 INFO L225 Difference]: With dead ends: 3061 [2023-12-22 01:23:00,627 INFO L226 Difference]: Without dead ends: 2541 [2023-12-22 01:23:00,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:00,629 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1501 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:00,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:00,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2023-12-22 01:23:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2539. [2023-12-22 01:23:00,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2537 states have (on average 1.6724477729601892) internal successors, (4243), 2538 states have internal predecessors, (4243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 4243 transitions. [2023-12-22 01:23:00,660 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 4243 transitions. Word has length 66 [2023-12-22 01:23:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:00,661 INFO L495 AbstractCegarLoop]: Abstraction has 2539 states and 4243 transitions. [2023-12-22 01:23:00,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:00,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 4243 transitions. [2023-12-22 01:23:00,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:00,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:00,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:00,664 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 01:23:00,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:00,864 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:00,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash -933364146, now seen corresponding path program 1 times [2023-12-22 01:23:00,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:00,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687917405] [2023-12-22 01:23:00,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:00,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:00,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:00,866 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:00,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 01:23:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:00,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:00,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:00,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:00,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:00,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687917405] [2023-12-22 01:23:00,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687917405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:00,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:00,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:00,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270920765] [2023-12-22 01:23:00,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:00,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:00,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:00,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:00,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:00,977 INFO L87 Difference]: Start difference. First operand 2539 states and 4243 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:01,014 INFO L93 Difference]: Finished difference Result 4423 states and 7133 transitions. [2023-12-22 01:23:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:01,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:23:01,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:01,023 INFO L225 Difference]: With dead ends: 4423 [2023-12-22 01:23:01,023 INFO L226 Difference]: Without dead ends: 3433 [2023-12-22 01:23:01,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:01,026 INFO L413 NwaCegarLoop]: 1600 mSDtfsCounter, 1499 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:01,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:01,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2023-12-22 01:23:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3431. [2023-12-22 01:23:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3431 states, 3429 states have (on average 1.6270049577136192) internal successors, (5579), 3430 states have internal predecessors, (5579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 5579 transitions. [2023-12-22 01:23:01,078 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 5579 transitions. Word has length 66 [2023-12-22 01:23:01,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:01,079 INFO L495 AbstractCegarLoop]: Abstraction has 3431 states and 5579 transitions. [2023-12-22 01:23:01,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 5579 transitions. [2023-12-22 01:23:01,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:01,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:01,081 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] [2023-12-22 01:23:01,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-22 01:23:01,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:01,284 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:01,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:01,284 INFO L85 PathProgramCache]: Analyzing trace with hash -44630706, now seen corresponding path program 1 times [2023-12-22 01:23:01,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:01,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143578219] [2023-12-22 01:23:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:01,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:01,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:01,286 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:01,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 01:23:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:01,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:01,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:01,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:01,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:01,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:01,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143578219] [2023-12-22 01:23:01,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143578219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:01,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:01,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:01,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624711405] [2023-12-22 01:23:01,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:01,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:01,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:01,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:01,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:01,402 INFO L87 Difference]: Start difference. First operand 3431 states and 5579 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:01,469 INFO L93 Difference]: Finished difference Result 7003 states and 10973 transitions. [2023-12-22 01:23:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:01,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:23:01,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:01,481 INFO L225 Difference]: With dead ends: 7003 [2023-12-22 01:23:01,481 INFO L226 Difference]: Without dead ends: 5121 [2023-12-22 01:23:01,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:01,483 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1497 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:01,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:01,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5121 states. [2023-12-22 01:23:01,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5121 to 5119. [2023-12-22 01:23:01,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5117 states have (on average 1.5749462575727966) internal successors, (8059), 5118 states have internal predecessors, (8059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 8059 transitions. [2023-12-22 01:23:01,552 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 8059 transitions. Word has length 66 [2023-12-22 01:23:01,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:01,552 INFO L495 AbstractCegarLoop]: Abstraction has 5119 states and 8059 transitions. [2023-12-22 01:23:01,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 8059 transitions. [2023-12-22 01:23:01,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:01,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:01,554 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] [2023-12-22 01:23:01,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:01,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:01,760 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:01,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:01,761 INFO L85 PathProgramCache]: Analyzing trace with hash -79068850, now seen corresponding path program 1 times [2023-12-22 01:23:01,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:01,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168025068] [2023-12-22 01:23:01,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:01,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:01,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:01,762 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:01,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 01:23:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:01,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:01,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:01,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:01,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:01,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168025068] [2023-12-22 01:23:01,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168025068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:01,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:01,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:01,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618886245] [2023-12-22 01:23:01,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:01,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:01,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:01,873 INFO L87 Difference]: Start difference. First operand 5119 states and 8059 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:01,941 INFO L93 Difference]: Finished difference Result 11875 states and 18077 transitions. [2023-12-22 01:23:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:01,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:23:01,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:01,959 INFO L225 Difference]: With dead ends: 11875 [2023-12-22 01:23:01,960 INFO L226 Difference]: Without dead ends: 8305 [2023-12-22 01:23:01,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:01,966 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 1505 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:01,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:01,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8305 states. [2023-12-22 01:23:02,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8305 to 8303. [2023-12-22 01:23:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8303 states, 8301 states have (on average 1.5221057703891097) internal successors, (12635), 8302 states have internal predecessors, (12635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:02,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8303 states to 8303 states and 12635 transitions. [2023-12-22 01:23:02,142 INFO L78 Accepts]: Start accepts. Automaton has 8303 states and 12635 transitions. Word has length 66 [2023-12-22 01:23:02,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:02,142 INFO L495 AbstractCegarLoop]: Abstraction has 8303 states and 12635 transitions. [2023-12-22 01:23:02,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:02,143 INFO L276 IsEmpty]: Start isEmpty. Operand 8303 states and 12635 transitions. [2023-12-22 01:23:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-22 01:23:02,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:02,143 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] [2023-12-22 01:23:02,148 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 01:23:02,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:02,346 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:02,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1522611955, now seen corresponding path program 1 times [2023-12-22 01:23:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:02,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965841113] [2023-12-22 01:23:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:02,347 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 01:23:02,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:02,348 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:02,349 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 (13)] Waiting until timeout for monitored process [2023-12-22 01:23:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:02,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:02,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:02,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:02,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:02,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965841113] [2023-12-22 01:23:02,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965841113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:02,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:02,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:02,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402429350] [2023-12-22 01:23:02,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:02,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:02,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:02,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:02,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:02,474 INFO L87 Difference]: Start difference. First operand 8303 states and 12635 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:02,555 INFO L93 Difference]: Finished difference Result 15222 states and 23009 transitions. [2023-12-22 01:23:02,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:02,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2023-12-22 01:23:02,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:02,570 INFO L225 Difference]: With dead ends: 15222 [2023-12-22 01:23:02,571 INFO L226 Difference]: Without dead ends: 11475 [2023-12-22 01:23:02,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:02,576 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 1504 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:02,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:02,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11475 states. [2023-12-22 01:23:02,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11475 to 11473. [2023-12-22 01:23:02,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11473 states, 11471 states have (on average 1.5033562897742132) internal successors, (17245), 11472 states have internal predecessors, (17245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11473 states to 11473 states and 17245 transitions. [2023-12-22 01:23:02,751 INFO L78 Accepts]: Start accepts. Automaton has 11473 states and 17245 transitions. Word has length 68 [2023-12-22 01:23:02,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:02,751 INFO L495 AbstractCegarLoop]: Abstraction has 11473 states and 17245 transitions. [2023-12-22 01:23:02,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:02,751 INFO L276 IsEmpty]: Start isEmpty. Operand 11473 states and 17245 transitions. [2023-12-22 01:23:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:23:02,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:02,753 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] [2023-12-22 01:23:02,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:02,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:02,956 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:02,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:02,956 INFO L85 PathProgramCache]: Analyzing trace with hash 510998183, now seen corresponding path program 1 times [2023-12-22 01:23:02,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:02,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124841732] [2023-12-22 01:23:02,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:02,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:02,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:02,958 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:02,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 01:23:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:03,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:03,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:03,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:03,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:03,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124841732] [2023-12-22 01:23:03,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124841732] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:03,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:03,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:03,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820849407] [2023-12-22 01:23:03,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:03,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:03,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:03,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:03,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:03,073 INFO L87 Difference]: Start difference. First operand 11473 states and 17245 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:03,189 INFO L93 Difference]: Finished difference Result 18410 states and 27541 transitions. [2023-12-22 01:23:03,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:03,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-22 01:23:03,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:03,201 INFO L225 Difference]: With dead ends: 18410 [2023-12-22 01:23:03,201 INFO L226 Difference]: Without dead ends: 8488 [2023-12-22 01:23:03,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:03,208 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 58 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:03,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3152 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:03,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8488 states. [2023-12-22 01:23:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8488 to 8486. [2023-12-22 01:23:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8486 states, 8484 states have (on average 1.5221593587930222) internal successors, (12914), 8485 states have internal predecessors, (12914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8486 states to 8486 states and 12914 transitions. [2023-12-22 01:23:03,323 INFO L78 Accepts]: Start accepts. Automaton has 8486 states and 12914 transitions. Word has length 86 [2023-12-22 01:23:03,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:03,324 INFO L495 AbstractCegarLoop]: Abstraction has 8486 states and 12914 transitions. [2023-12-22 01:23:03,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:03,324 INFO L276 IsEmpty]: Start isEmpty. Operand 8486 states and 12914 transitions. [2023-12-22 01:23:03,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 01:23:03,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:03,325 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] [2023-12-22 01:23:03,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:03,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:03,528 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:03,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:03,529 INFO L85 PathProgramCache]: Analyzing trace with hash 2051734284, now seen corresponding path program 1 times [2023-12-22 01:23:03,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:03,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308288283] [2023-12-22 01:23:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:03,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:03,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:03,531 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:03,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 01:23:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:03,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:23:03,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:04,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:04,779 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:04,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:04,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308288283] [2023-12-22 01:23:04,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308288283] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:04,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:04,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:23:04,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440970987] [2023-12-22 01:23:04,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:04,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:23:04,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:04,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:23:04,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:23:04,781 INFO L87 Difference]: Start difference. First operand 8486 states and 12914 transitions. Second operand has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:06,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:06,954 INFO L93 Difference]: Finished difference Result 26976 states and 39751 transitions. [2023-12-22 01:23:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:23:06,955 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 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 88 [2023-12-22 01:23:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:06,980 INFO L225 Difference]: With dead ends: 26976 [2023-12-22 01:23:06,981 INFO L226 Difference]: Without dead ends: 20062 [2023-12-22 01:23:06,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 01:23:06,986 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 3613 mSDsluCounter, 11082 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3613 SdHoareTripleChecker+Valid, 12672 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3613 Valid, 12672 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 01:23:06,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20062 states. [2023-12-22 01:23:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20062 to 15398. [2023-12-22 01:23:07,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15398 states, 15396 states have (on average 1.493504806443232) internal successors, (22994), 15397 states have internal predecessors, (22994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:07,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15398 states to 15398 states and 22994 transitions. [2023-12-22 01:23:07,337 INFO L78 Accepts]: Start accepts. Automaton has 15398 states and 22994 transitions. Word has length 88 [2023-12-22 01:23:07,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:07,337 INFO L495 AbstractCegarLoop]: Abstraction has 15398 states and 22994 transitions. [2023-12-22 01:23:07,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:07,337 INFO L276 IsEmpty]: Start isEmpty. Operand 15398 states and 22994 transitions. [2023-12-22 01:23:07,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-22 01:23:07,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:07,339 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] [2023-12-22 01:23:07,344 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 01:23:07,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:07,542 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:07,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1066419112, now seen corresponding path program 1 times [2023-12-22 01:23:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:07,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39332848] [2023-12-22 01:23:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:07,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:07,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:07,544 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:07,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 01:23:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:07,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:07,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:07,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:07,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:07,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39332848] [2023-12-22 01:23:07,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39332848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:07,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:07,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:07,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366823258] [2023-12-22 01:23:07,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:07,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:07,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:07,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:07,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:07,664 INFO L87 Difference]: Start difference. First operand 15398 states and 22994 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 01:23:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:07,820 INFO L93 Difference]: Finished difference Result 22314 states and 33124 transitions. [2023-12-22 01:23:07,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:07,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 01:23:07,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:07,832 INFO L225 Difference]: With dead ends: 22314 [2023-12-22 01:23:07,833 INFO L226 Difference]: Without dead ends: 8488 [2023-12-22 01:23:07,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:07,844 INFO L413 NwaCegarLoop]: 1600 mSDtfsCounter, 52 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:07,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3137 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:07,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8488 states. [2023-12-22 01:23:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8488 to 8486. [2023-12-22 01:23:08,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8486 states, 8484 states have (on average 1.505186232909005) internal successors, (12770), 8485 states have internal predecessors, (12770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8486 states to 8486 states and 12770 transitions. [2023-12-22 01:23:08,027 INFO L78 Accepts]: Start accepts. Automaton has 8486 states and 12770 transitions. Word has length 90 [2023-12-22 01:23:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:08,027 INFO L495 AbstractCegarLoop]: Abstraction has 8486 states and 12770 transitions. [2023-12-22 01:23:08,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 01:23:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 8486 states and 12770 transitions. [2023-12-22 01:23:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 01:23:08,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:08,028 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] [2023-12-22 01:23:08,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:08,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:08,232 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:08,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:08,232 INFO L85 PathProgramCache]: Analyzing trace with hash -777056315, now seen corresponding path program 1 times [2023-12-22 01:23:08,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:08,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525465127] [2023-12-22 01:23:08,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:08,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:08,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:08,233 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:08,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 01:23:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:08,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:23:08,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:09,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:09,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:09,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:09,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525465127] [2023-12-22 01:23:09,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525465127] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:09,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:09,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:23:09,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994994984] [2023-12-22 01:23:09,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:09,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:23:09,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:09,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:23:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:23:09,564 INFO L87 Difference]: Start difference. First operand 8486 states and 12770 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:10,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:10,508 INFO L93 Difference]: Finished difference Result 15604 states and 23011 transitions. [2023-12-22 01:23:10,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 01:23:10,509 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 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 01:23:10,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:10,520 INFO L225 Difference]: With dead ends: 15604 [2023-12-22 01:23:10,520 INFO L226 Difference]: Without dead ends: 8690 [2023-12-22 01:23:10,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-22 01:23:10,527 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 3184 mSDsluCounter, 13584 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 15094 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:10,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 15094 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 01:23:10,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2023-12-22 01:23:10,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 8496. [2023-12-22 01:23:10,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8494 states have (on average 1.5048269366611726) internal successors, (12782), 8495 states have internal predecessors, (12782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 12782 transitions. [2023-12-22 01:23:10,695 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 12782 transitions. Word has length 91 [2023-12-22 01:23:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:10,696 INFO L495 AbstractCegarLoop]: Abstraction has 8496 states and 12782 transitions. [2023-12-22 01:23:10,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:10,696 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 12782 transitions. [2023-12-22 01:23:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 01:23:10,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:10,697 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] [2023-12-22 01:23:10,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:10,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:10,901 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:10,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:10,901 INFO L85 PathProgramCache]: Analyzing trace with hash -697975955, now seen corresponding path program 1 times [2023-12-22 01:23:10,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:10,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299392846] [2023-12-22 01:23:10,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:10,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:10,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:10,902 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:10,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 01:23:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:11,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:11,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:11,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:11,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:11,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299392846] [2023-12-22 01:23:11,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299392846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:11,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:11,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:11,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139153525] [2023-12-22 01:23:11,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:11,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:11,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:11,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:11,069 INFO L87 Difference]: Start difference. First operand 8496 states and 12782 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:11,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:11,146 INFO L93 Difference]: Finished difference Result 11956 states and 17800 transitions. [2023-12-22 01:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:11,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-22 01:23:11,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:11,151 INFO L225 Difference]: With dead ends: 11956 [2023-12-22 01:23:11,152 INFO L226 Difference]: Without dead ends: 5042 [2023-12-22 01:23:11,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:11,157 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 48 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:11,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3122 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:11,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2023-12-22 01:23:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 5040. [2023-12-22 01:23:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5040 states, 5038 states have (on average 1.5319571258435887) internal successors, (7718), 5039 states have internal predecessors, (7718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:11,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5040 states to 5040 states and 7718 transitions. [2023-12-22 01:23:11,265 INFO L78 Accepts]: Start accepts. Automaton has 5040 states and 7718 transitions. Word has length 93 [2023-12-22 01:23:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:11,265 INFO L495 AbstractCegarLoop]: Abstraction has 5040 states and 7718 transitions. [2023-12-22 01:23:11,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5040 states and 7718 transitions. [2023-12-22 01:23:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-22 01:23:11,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:11,266 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] [2023-12-22 01:23:11,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:11,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:11,472 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:11,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:11,472 INFO L85 PathProgramCache]: Analyzing trace with hash 92688288, now seen corresponding path program 1 times [2023-12-22 01:23:11,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:11,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625539490] [2023-12-22 01:23:11,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:11,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:11,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:11,474 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:11,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 01:23:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:11,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:23:11,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:12,317 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:12,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:12,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:12,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625539490] [2023-12-22 01:23:12,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625539490] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:12,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:12,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:23:12,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916424702] [2023-12-22 01:23:12,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:12,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:23:12,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:12,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:23:12,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:23:12,711 INFO L87 Difference]: Start difference. First operand 5040 states and 7718 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:14,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:14,237 INFO L93 Difference]: Finished difference Result 14504 states and 21162 transitions. [2023-12-22 01:23:14,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:23:14,238 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 states have internal predecessors, (176), 0 states have call successors, (0), 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 94 [2023-12-22 01:23:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:14,248 INFO L225 Difference]: With dead ends: 14504 [2023-12-22 01:23:14,248 INFO L226 Difference]: Without dead ends: 11046 [2023-12-22 01:23:14,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 172 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 01:23:14,254 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 3430 mSDsluCounter, 12446 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3430 SdHoareTripleChecker+Valid, 14052 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:14,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3430 Valid, 14052 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:23:14,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11046 states. [2023-12-22 01:23:14,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11046 to 8784. [2023-12-22 01:23:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8784 states, 8782 states have (on average 1.4718742883170122) internal successors, (12926), 8783 states have internal predecessors, (12926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8784 states to 8784 states and 12926 transitions. [2023-12-22 01:23:14,432 INFO L78 Accepts]: Start accepts. Automaton has 8784 states and 12926 transitions. Word has length 94 [2023-12-22 01:23:14,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:14,433 INFO L495 AbstractCegarLoop]: Abstraction has 8784 states and 12926 transitions. [2023-12-22 01:23:14,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 8784 states and 12926 transitions. [2023-12-22 01:23:14,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-22 01:23:14,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:14,434 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] [2023-12-22 01:23:14,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-22 01:23:14,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:14,637 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:14,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:14,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1057816364, now seen corresponding path program 1 times [2023-12-22 01:23:14,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:14,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946525619] [2023-12-22 01:23:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:14,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:14,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:14,639 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:14,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 01:23:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:14,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:14,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:14,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:14,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:14,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946525619] [2023-12-22 01:23:14,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946525619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:14,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:14,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:14,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146161657] [2023-12-22 01:23:14,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:14,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:14,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:14,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:14,770 INFO L87 Difference]: Start difference. First operand 8784 states and 12926 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:14,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:14,850 INFO L93 Difference]: Finished difference Result 12388 states and 18016 transitions. [2023-12-22 01:23:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:14,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-22 01:23:14,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:14,855 INFO L225 Difference]: With dead ends: 12388 [2023-12-22 01:23:14,855 INFO L226 Difference]: Without dead ends: 5186 [2023-12-22 01:23:14,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:14,861 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 44 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:14,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3107 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2023-12-22 01:23:14,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5184. [2023-12-22 01:23:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 5182 states have (on average 1.5032805866460826) internal successors, (7790), 5183 states have internal predecessors, (7790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7790 transitions. [2023-12-22 01:23:14,946 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7790 transitions. Word has length 96 [2023-12-22 01:23:14,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:14,946 INFO L495 AbstractCegarLoop]: Abstraction has 5184 states and 7790 transitions. [2023-12-22 01:23:14,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:14,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7790 transitions. [2023-12-22 01:23:14,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-22 01:23:14,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:14,948 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] [2023-12-22 01:23:14,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-22 01:23:15,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:15,149 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:15,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1862481433, now seen corresponding path program 1 times [2023-12-22 01:23:15,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:15,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770210347] [2023-12-22 01:23:15,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:15,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:15,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:15,151 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:15,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 01:23:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:15,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:23:15,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:15,996 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:15,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:16,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:16,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770210347] [2023-12-22 01:23:16,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770210347] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:16,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:16,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:23:16,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406241700] [2023-12-22 01:23:16,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:16,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:23:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:16,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:23:16,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:23:16,335 INFO L87 Difference]: Start difference. First operand 5184 states and 7790 transitions. Second operand has 16 states, 16 states have (on average 11.5) internal successors, (184), 16 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:17,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:17,778 INFO L93 Difference]: Finished difference Result 14648 states and 20898 transitions. [2023-12-22 01:23:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:23:17,778 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.5) internal successors, (184), 16 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-22 01:23:17,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:17,787 INFO L225 Difference]: With dead ends: 14648 [2023-12-22 01:23:17,787 INFO L226 Difference]: Without dead ends: 11046 [2023-12-22 01:23:17,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:23:17,789 INFO L413 NwaCegarLoop]: 1588 mSDtfsCounter, 3458 mSDsluCounter, 12453 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3458 SdHoareTripleChecker+Valid, 14041 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:17,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3458 Valid, 14041 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:23:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11046 states. [2023-12-22 01:23:17,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11046 to 9072. [2023-12-22 01:23:17,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 9070 states have (on average 1.4410143329658214) internal successors, (13070), 9071 states have internal predecessors, (13070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 13070 transitions. [2023-12-22 01:23:17,962 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 13070 transitions. Word has length 97 [2023-12-22 01:23:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:17,963 INFO L495 AbstractCegarLoop]: Abstraction has 9072 states and 13070 transitions. [2023-12-22 01:23:17,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.5) internal successors, (184), 16 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 13070 transitions. [2023-12-22 01:23:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-22 01:23:17,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:17,964 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] [2023-12-22 01:23:17,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:18,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:18,171 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:18,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:18,172 INFO L85 PathProgramCache]: Analyzing trace with hash 118906969, now seen corresponding path program 1 times [2023-12-22 01:23:18,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:18,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310803875] [2023-12-22 01:23:18,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:18,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:18,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:18,173 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:18,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 01:23:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:18,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:18,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:18,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:18,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:18,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310803875] [2023-12-22 01:23:18,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310803875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:18,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:18,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:18,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369053438] [2023-12-22 01:23:18,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:18,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:18,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:18,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:18,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:18,295 INFO L87 Difference]: Start difference. First operand 9072 states and 13070 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:18,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:18,380 INFO L93 Difference]: Finished difference Result 12820 states and 18232 transitions. [2023-12-22 01:23:18,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:18,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-22 01:23:18,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:18,385 INFO L225 Difference]: With dead ends: 12820 [2023-12-22 01:23:18,385 INFO L226 Difference]: Without dead ends: 5330 [2023-12-22 01:23:18,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:18,390 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 40 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:18,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3092 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5330 states. [2023-12-22 01:23:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5330 to 5328. [2023-12-22 01:23:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5326 states have (on average 1.4761547127300036) internal successors, (7862), 5327 states have internal predecessors, (7862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 7862 transitions. [2023-12-22 01:23:18,507 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 7862 transitions. Word has length 99 [2023-12-22 01:23:18,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:18,507 INFO L495 AbstractCegarLoop]: Abstraction has 5328 states and 7862 transitions. [2023-12-22 01:23:18,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:18,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 7862 transitions. [2023-12-22 01:23:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 01:23:18,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:18,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:18,516 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 01:23:18,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:18,712 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:18,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:18,712 INFO L85 PathProgramCache]: Analyzing trace with hash -939456972, now seen corresponding path program 1 times [2023-12-22 01:23:18,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:18,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132136543] [2023-12-22 01:23:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:18,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:18,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:18,713 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:18,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 01:23:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:18,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:23:18,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:19,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:19,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:19,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132136543] [2023-12-22 01:23:19,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132136543] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:19,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:19,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:23:19,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690771793] [2023-12-22 01:23:19,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:19,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:23:19,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:19,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:23:19,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:23:19,940 INFO L87 Difference]: Start difference. First operand 5328 states and 7862 transitions. Second operand has 16 states, 16 states have (on average 12.0) internal successors, (192), 16 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:21,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:21,202 INFO L93 Difference]: Finished difference Result 14792 states and 20634 transitions. [2023-12-22 01:23:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:23:21,204 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.0) internal successors, (192), 16 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-22 01:23:21,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:21,216 INFO L225 Difference]: With dead ends: 14792 [2023-12-22 01:23:21,216 INFO L226 Difference]: Without dead ends: 11046 [2023-12-22 01:23:21,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:23:21,221 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 5037 mSDsluCounter, 9293 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5037 SdHoareTripleChecker+Valid, 10863 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:21,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5037 Valid, 10863 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 01:23:21,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11046 states. [2023-12-22 01:23:21,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11046 to 9360. [2023-12-22 01:23:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9360 states, 9358 states have (on average 1.4120538576618935) internal successors, (13214), 9359 states have internal predecessors, (13214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:21,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9360 states to 9360 states and 13214 transitions. [2023-12-22 01:23:21,416 INFO L78 Accepts]: Start accepts. Automaton has 9360 states and 13214 transitions. Word has length 100 [2023-12-22 01:23:21,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:21,417 INFO L495 AbstractCegarLoop]: Abstraction has 9360 states and 13214 transitions. [2023-12-22 01:23:21,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.0) internal successors, (192), 16 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:21,417 INFO L276 IsEmpty]: Start isEmpty. Operand 9360 states and 13214 transitions. [2023-12-22 01:23:21,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-22 01:23:21,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:21,418 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] [2023-12-22 01:23:21,421 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 01:23:21,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:21,619 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:21,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:21,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1166857216, now seen corresponding path program 1 times [2023-12-22 01:23:21,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:21,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820361883] [2023-12-22 01:23:21,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:21,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:21,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:21,620 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:21,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 01:23:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:21,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:21,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:21,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:21,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:21,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820361883] [2023-12-22 01:23:21,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820361883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:21,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:21,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:21,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105430885] [2023-12-22 01:23:21,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:21,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:21,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:21,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:21,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:21,767 INFO L87 Difference]: Start difference. First operand 9360 states and 13214 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:21,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:21,858 INFO L93 Difference]: Finished difference Result 13252 states and 18424 transitions. [2023-12-22 01:23:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:21,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-22 01:23:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:21,863 INFO L225 Difference]: With dead ends: 13252 [2023-12-22 01:23:21,863 INFO L226 Difference]: Without dead ends: 5474 [2023-12-22 01:23:21,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:21,867 INFO L413 NwaCegarLoop]: 1572 mSDtfsCounter, 36 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:21,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3077 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:23:21,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2023-12-22 01:23:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5472. [2023-12-22 01:23:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5472 states, 5470 states have (on average 1.4460694698354661) internal successors, (7910), 5471 states have internal predecessors, (7910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5472 states to 5472 states and 7910 transitions. [2023-12-22 01:23:21,961 INFO L78 Accepts]: Start accepts. Automaton has 5472 states and 7910 transitions. Word has length 102 [2023-12-22 01:23:21,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:21,961 INFO L495 AbstractCegarLoop]: Abstraction has 5472 states and 7910 transitions. [2023-12-22 01:23:21,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:21,962 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states and 7910 transitions. [2023-12-22 01:23:21,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-22 01:23:21,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:21,962 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:21,966 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 01:23:22,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:22,164 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:22,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:22,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1254707603, now seen corresponding path program 1 times [2023-12-22 01:23:22,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:22,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663854848] [2023-12-22 01:23:22,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:22,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:22,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:22,166 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:22,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 01:23:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:22,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:23:22,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:22,960 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:22,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:23,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:23,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663854848] [2023-12-22 01:23:23,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663854848] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:23,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:23,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:23:23,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867827283] [2023-12-22 01:23:23,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:23,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:23:23,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:23,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:23:23,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:23:23,348 INFO L87 Difference]: Start difference. First operand 5472 states and 7910 transitions. Second operand has 16 states, 16 states have (on average 12.5) internal successors, (200), 16 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:24,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:24,638 INFO L93 Difference]: Finished difference Result 12712 states and 17402 transitions. [2023-12-22 01:23:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 01:23:24,639 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.5) internal successors, (200), 16 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-22 01:23:24,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:24,647 INFO L225 Difference]: With dead ends: 12712 [2023-12-22 01:23:24,647 INFO L226 Difference]: Without dead ends: 8822 [2023-12-22 01:23:24,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 01:23:24,652 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 5007 mSDsluCounter, 10760 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 12312 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:24,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 12312 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:23:24,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8822 states. [2023-12-22 01:23:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8822 to 8256. [2023-12-22 01:23:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8256 states, 8254 states have (on average 1.3905984976980859) internal successors, (11478), 8255 states have internal predecessors, (11478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:24,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8256 states to 8256 states and 11478 transitions. [2023-12-22 01:23:24,851 INFO L78 Accepts]: Start accepts. Automaton has 8256 states and 11478 transitions. Word has length 103 [2023-12-22 01:23:24,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:24,851 INFO L495 AbstractCegarLoop]: Abstraction has 8256 states and 11478 transitions. [2023-12-22 01:23:24,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.5) internal successors, (200), 16 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:24,851 INFO L276 IsEmpty]: Start isEmpty. Operand 8256 states and 11478 transitions. [2023-12-22 01:23:24,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-22 01:23:24,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:24,852 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:24,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-22 01:23:25,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:25,053 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:25,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:25,054 INFO L85 PathProgramCache]: Analyzing trace with hash 192635717, now seen corresponding path program 1 times [2023-12-22 01:23:25,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:25,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575129344] [2023-12-22 01:23:25,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:25,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:25,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:25,055 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:25,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 01:23:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:25,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:23:25,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:23:25,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:25,411 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:23:25,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:25,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575129344] [2023-12-22 01:23:25,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575129344] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:25,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:25,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:23:25,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433010409] [2023-12-22 01:23:25,412 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:25,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 01:23:25,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:25,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 01:23:25,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 01:23:25,413 INFO L87 Difference]: Start difference. First operand 8256 states and 11478 transitions. Second operand has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:25,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:25,904 INFO L93 Difference]: Finished difference Result 27610 states and 36339 transitions. [2023-12-22 01:23:25,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 01:23:25,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-22 01:23:25,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:25,924 INFO L225 Difference]: With dead ends: 27610 [2023-12-22 01:23:25,924 INFO L226 Difference]: Without dead ends: 20936 [2023-12-22 01:23:25,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:23:25,928 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 3079 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3079 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:25,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3079 Valid, 3330 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:23:25,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20936 states. [2023-12-22 01:23:26,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20936 to 20852. [2023-12-22 01:23:26,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20852 states, 20850 states have (on average 1.277314148681055) internal successors, (26632), 20851 states have internal predecessors, (26632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:26,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20852 states to 20852 states and 26632 transitions. [2023-12-22 01:23:26,456 INFO L78 Accepts]: Start accepts. Automaton has 20852 states and 26632 transitions. Word has length 105 [2023-12-22 01:23:26,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:26,457 INFO L495 AbstractCegarLoop]: Abstraction has 20852 states and 26632 transitions. [2023-12-22 01:23:26,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 20852 states and 26632 transitions. [2023-12-22 01:23:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-22 01:23:26,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:26,458 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:26,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-22 01:23:26,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:26,659 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:26,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:26,659 INFO L85 PathProgramCache]: Analyzing trace with hash -302479985, now seen corresponding path program 1 times [2023-12-22 01:23:26,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:26,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942075527] [2023-12-22 01:23:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:26,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:26,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:26,661 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:26,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 01:23:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:26,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:23:26,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:26,943 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:26,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:26,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:26,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942075527] [2023-12-22 01:23:26,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942075527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:26,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:26,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:23:26,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982073634] [2023-12-22 01:23:26,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:26,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:26,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:26,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:26,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:26,945 INFO L87 Difference]: Start difference. First operand 20852 states and 26632 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:00,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:00,187 INFO L93 Difference]: Finished difference Result 23107 states and 30531 transitions. [2023-12-22 01:24:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:00,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-12-22 01:24:00,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:00,206 INFO L225 Difference]: With dead ends: 23107 [2023-12-22 01:24:00,207 INFO L226 Difference]: Without dead ends: 21603 [2023-12-22 01:24:00,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:00,210 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 812 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:00,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 705 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 32.6s Time] [2023-12-22 01:24:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21603 states. [2023-12-22 01:24:00,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21603 to 21603. [2023-12-22 01:24:00,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21603 states, 21601 states have (on average 1.2732280912920697) internal successors, (27503), 21602 states have internal predecessors, (27503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:00,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21603 states to 21603 states and 27503 transitions. [2023-12-22 01:24:00,799 INFO L78 Accepts]: Start accepts. Automaton has 21603 states and 27503 transitions. Word has length 112 [2023-12-22 01:24:00,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:00,799 INFO L495 AbstractCegarLoop]: Abstraction has 21603 states and 27503 transitions. [2023-12-22 01:24:00,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:00,799 INFO L276 IsEmpty]: Start isEmpty. Operand 21603 states and 27503 transitions. [2023-12-22 01:24:00,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-22 01:24:00,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:00,801 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:24:00,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-22 01:24:01,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:01,005 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:01,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1888775033, now seen corresponding path program 1 times [2023-12-22 01:24:01,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:01,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028128437] [2023-12-22 01:24:01,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:01,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:01,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:01,007 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:24:01,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 01:24:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:01,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:01,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-22 01:24:01,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:01,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:01,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028128437] [2023-12-22 01:24:01,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028128437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:01,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:01,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:24:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096795506] [2023-12-22 01:24:01,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:01,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:01,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:01,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:01,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:01,233 INFO L87 Difference]: Start difference. First operand 21603 states and 27503 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:42,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:42,259 INFO L93 Difference]: Finished difference Result 26111 states and 34580 transitions. [2023-12-22 01:24:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:42,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-22 01:24:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:42,283 INFO L225 Difference]: With dead ends: 26111 [2023-12-22 01:24:42,283 INFO L226 Difference]: Without dead ends: 23856 [2023-12-22 01:24:42,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:42,289 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 820 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 3030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:42,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 765 Invalid, 3030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 40.4s Time] [2023-12-22 01:24:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23856 states. [2023-12-22 01:24:42,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23856 to 23856. [2023-12-22 01:24:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23856 states, 23854 states have (on average 1.2695564685168106) internal successors, (30284), 23855 states have internal predecessors, (30284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:42,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23856 states to 23856 states and 30284 transitions. [2023-12-22 01:24:42,935 INFO L78 Accepts]: Start accepts. Automaton has 23856 states and 30284 transitions. Word has length 113 [2023-12-22 01:24:42,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:42,935 INFO L495 AbstractCegarLoop]: Abstraction has 23856 states and 30284 transitions. [2023-12-22 01:24:42,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:42,935 INFO L276 IsEmpty]: Start isEmpty. Operand 23856 states and 30284 transitions. [2023-12-22 01:24:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 01:24:42,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:42,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:24:42,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-22 01:24:43,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:43,141 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:43,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:43,141 INFO L85 PathProgramCache]: Analyzing trace with hash 20858654, now seen corresponding path program 1 times [2023-12-22 01:24:43,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:43,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055278782] [2023-12-22 01:24:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:43,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:43,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:43,143 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:24:43,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 01:24:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:43,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:24:43,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 33 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:24:43,650 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 33 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:24:44,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:44,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055278782] [2023-12-22 01:24:44,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055278782] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:44,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:44,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:24:44,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846445045] [2023-12-22 01:24:44,084 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:44,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:24:44,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:44,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:24:44,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:24:44,085 INFO L87 Difference]: Start difference. First operand 23856 states and 30284 transitions. Second operand has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:20,645 INFO L93 Difference]: Finished difference Result 36698 states and 49562 transitions. [2023-12-22 01:26:20,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 01:26:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:26:20,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:20,733 INFO L225 Difference]: With dead ends: 36698 [2023-12-22 01:26:20,733 INFO L226 Difference]: Without dead ends: 32190 [2023-12-22 01:26:20,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 01:26:20,738 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 5302 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 8398 mSolverCounterSat, 3364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5302 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 11762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3364 IncrementalHoareTripleChecker+Valid, 8398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:20,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5302 Valid, 479 Invalid, 11762 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3364 Valid, 8398 Invalid, 0 Unknown, 0 Unchecked, 95.5s Time] [2023-12-22 01:26:20,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32190 states. [2023-12-22 01:26:21,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32190 to 30615. [2023-12-22 01:26:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30615 states, 30613 states have (on average 1.260216247999216) internal successors, (38579), 30614 states have internal predecessors, (38579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30615 states to 30615 states and 38579 transitions. [2023-12-22 01:26:21,421 INFO L78 Accepts]: Start accepts. Automaton has 30615 states and 38579 transitions. Word has length 118 [2023-12-22 01:26:21,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:21,421 INFO L495 AbstractCegarLoop]: Abstraction has 30615 states and 38579 transitions. [2023-12-22 01:26:21,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand 30615 states and 38579 transitions. [2023-12-22 01:26:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 01:26:21,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:21,427 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:21,432 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 (29)] Ended with exit code 0 [2023-12-22 01:26:21,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:21,630 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:21,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:21,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1558706169, now seen corresponding path program 1 times [2023-12-22 01:26:21,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:21,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215857054] [2023-12-22 01:26:21,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:21,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:21,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:21,632 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:21,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 01:26:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:21,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:26:21,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:23,092 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 54 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:23,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 54 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:23,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:23,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215857054] [2023-12-22 01:26:23,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215857054] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:23,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:23,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:26:23,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99264014] [2023-12-22 01:26:23,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:23,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:23,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:23,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:23,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:23,729 INFO L87 Difference]: Start difference. First operand 30615 states and 38579 transitions. Second operand has 26 states, 26 states have (on average 11.076923076923077) internal successors, (288), 25 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:26,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:26,004 INFO L93 Difference]: Finished difference Result 43655 states and 54883 transitions. [2023-12-22 01:26:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 01:26:26,005 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.076923076923077) internal successors, (288), 25 states have internal predecessors, (288), 0 states have call successors, (0), 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 158 [2023-12-22 01:26:26,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:26,040 INFO L225 Difference]: With dead ends: 43655 [2023-12-22 01:26:26,040 INFO L226 Difference]: Without dead ends: 30845 [2023-12-22 01:26:26,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 01:26:26,053 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 18176 mSDsluCounter, 7960 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18176 SdHoareTripleChecker+Valid, 9506 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:26,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18176 Valid, 9506 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:26:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30845 states. [2023-12-22 01:26:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30845 to 30615. [2023-12-22 01:26:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30615 states, 30613 states have (on average 1.252899095155653) internal successors, (38355), 30614 states have internal predecessors, (38355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:26,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30615 states to 30615 states and 38355 transitions. [2023-12-22 01:26:26,909 INFO L78 Accepts]: Start accepts. Automaton has 30615 states and 38355 transitions. Word has length 158 [2023-12-22 01:26:26,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:26,909 INFO L495 AbstractCegarLoop]: Abstraction has 30615 states and 38355 transitions. [2023-12-22 01:26:26,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.076923076923077) internal successors, (288), 25 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:26,909 INFO L276 IsEmpty]: Start isEmpty. Operand 30615 states and 38355 transitions. [2023-12-22 01:26:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:26:26,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:26,915 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:26,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-12-22 01:26:27,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:27,115 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:27,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash -918033510, now seen corresponding path program 1 times [2023-12-22 01:26:27,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:27,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331209146] [2023-12-22 01:26:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:27,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:27,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:27,117 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:27,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 01:26:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:27,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:26:27,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 46 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:28,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 46 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:28,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:28,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331209146] [2023-12-22 01:26:28,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331209146] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:28,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:28,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:26:28,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264549409] [2023-12-22 01:26:28,880 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:28,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:28,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:28,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:28,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:28,882 INFO L87 Difference]: Start difference. First operand 30615 states and 38355 transitions. Second operand has 26 states, 26 states have (on average 11.307692307692308) internal successors, (294), 25 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:31,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:31,343 INFO L93 Difference]: Finished difference Result 47755 states and 59542 transitions. [2023-12-22 01:26:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 01:26:31,344 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.307692307692308) internal successors, (294), 25 states have internal predecessors, (294), 0 states have call successors, (0), 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 159 [2023-12-22 01:26:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:31,375 INFO L225 Difference]: With dead ends: 47755 [2023-12-22 01:26:31,375 INFO L226 Difference]: Without dead ends: 30617 [2023-12-22 01:26:31,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 01:26:31,386 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 13726 mSDsluCounter, 6605 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13726 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:31,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13726 Valid, 8151 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:26:31,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30617 states. [2023-12-22 01:26:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30617 to 30615. [2023-12-22 01:26:32,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30615 states, 30613 states have (on average 1.24610459608663) internal successors, (38147), 30614 states have internal predecessors, (38147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30615 states to 30615 states and 38147 transitions. [2023-12-22 01:26:32,263 INFO L78 Accepts]: Start accepts. Automaton has 30615 states and 38147 transitions. Word has length 159 [2023-12-22 01:26:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:32,263 INFO L495 AbstractCegarLoop]: Abstraction has 30615 states and 38147 transitions. [2023-12-22 01:26:32,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.307692307692308) internal successors, (294), 25 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:32,263 INFO L276 IsEmpty]: Start isEmpty. Operand 30615 states and 38147 transitions. [2023-12-22 01:26:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-22 01:26:32,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:32,268 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:32,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-22 01:26:32,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:32,468 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:32,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:32,469 INFO L85 PathProgramCache]: Analyzing trace with hash 488318889, now seen corresponding path program 1 times [2023-12-22 01:26:32,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:32,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105771781] [2023-12-22 01:26:32,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:32,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:32,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:32,470 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:32,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 01:26:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:32,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:26:32,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 38 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:34,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 38 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:34,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:34,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105771781] [2023-12-22 01:26:34,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105771781] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:34,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:34,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:26:34,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395052551] [2023-12-22 01:26:34,527 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:34,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:34,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:34,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:34,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:34,528 INFO L87 Difference]: Start difference. First operand 30615 states and 38147 transitions. Second operand has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 25 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:41,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:41,034 INFO L93 Difference]: Finished difference Result 99003 states and 123216 transitions. [2023-12-22 01:26:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 01:26:41,035 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 25 states have internal predecessors, (300), 0 states have call successors, (0), 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 160 [2023-12-22 01:26:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:41,129 INFO L225 Difference]: With dead ends: 99003 [2023-12-22 01:26:41,129 INFO L226 Difference]: Without dead ends: 90777 [2023-12-22 01:26:41,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 01:26:41,145 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 14861 mSDsluCounter, 9973 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14861 SdHoareTripleChecker+Valid, 11519 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:41,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14861 Valid, 11519 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-22 01:26:41,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90777 states. [2023-12-22 01:26:42,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90777 to 30615. [2023-12-22 01:26:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30615 states, 30613 states have (on average 1.2424460196648484) internal successors, (38035), 30614 states have internal predecessors, (38035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:42,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30615 states to 30615 states and 38035 transitions. [2023-12-22 01:26:42,650 INFO L78 Accepts]: Start accepts. Automaton has 30615 states and 38035 transitions. Word has length 160 [2023-12-22 01:26:42,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:42,651 INFO L495 AbstractCegarLoop]: Abstraction has 30615 states and 38035 transitions. [2023-12-22 01:26:42,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 25 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:42,651 INFO L276 IsEmpty]: Start isEmpty. Operand 30615 states and 38035 transitions. [2023-12-22 01:26:42,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-22 01:26:42,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:42,656 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:42,659 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 01:26:42,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:42,860 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:42,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1848668426, now seen corresponding path program 1 times [2023-12-22 01:26:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:42,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180857236] [2023-12-22 01:26:42,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:42,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:42,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:42,862 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:42,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 01:26:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:42,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:26:42,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:44,504 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 30 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:44,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 30 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:44,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:44,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180857236] [2023-12-22 01:26:44,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180857236] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:44,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:44,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:26:44,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419506354] [2023-12-22 01:26:44,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:44,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:44,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:44,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:44,994 INFO L87 Difference]: Start difference. First operand 30615 states and 38035 transitions. Second operand has 26 states, 26 states have (on average 11.76923076923077) internal successors, (306), 25 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:47,634 INFO L93 Difference]: Finished difference Result 40767 states and 50519 transitions. [2023-12-22 01:26:47,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:26:47,635 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.76923076923077) internal successors, (306), 25 states have internal predecessors, (306), 0 states have call successors, (0), 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 161 [2023-12-22 01:26:47,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:47,669 INFO L225 Difference]: With dead ends: 40767 [2023-12-22 01:26:47,669 INFO L226 Difference]: Without dead ends: 32829 [2023-12-22 01:26:47,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:26:47,682 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 15234 mSDsluCounter, 6544 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15234 SdHoareTripleChecker+Valid, 8090 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:47,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15234 Valid, 8090 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:26:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32829 states. [2023-12-22 01:26:48,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32829 to 30615. [2023-12-22 01:26:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30615 states, 30613 states have (on average 1.2387874432430668) internal successors, (37923), 30614 states have internal predecessors, (37923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30615 states to 30615 states and 37923 transitions. [2023-12-22 01:26:48,892 INFO L78 Accepts]: Start accepts. Automaton has 30615 states and 37923 transitions. Word has length 161 [2023-12-22 01:26:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:48,892 INFO L495 AbstractCegarLoop]: Abstraction has 30615 states and 37923 transitions. [2023-12-22 01:26:48,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.76923076923077) internal successors, (306), 25 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:48,893 INFO L276 IsEmpty]: Start isEmpty. Operand 30615 states and 37923 transitions. [2023-12-22 01:26:48,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 01:26:48,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:48,898 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:48,901 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 01:26:49,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:49,099 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:49,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:49,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1040867495, now seen corresponding path program 1 times [2023-12-22 01:26:49,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:49,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717167627] [2023-12-22 01:26:49,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:49,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:49,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:49,101 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:49,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 01:26:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:49,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:26:49,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:50,533 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 22 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:50,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:51,060 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 22 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:51,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:51,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717167627] [2023-12-22 01:26:51,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717167627] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:51,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:51,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:26:51,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003674869] [2023-12-22 01:26:51,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:51,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:51,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:51,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:51,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:51,062 INFO L87 Difference]: Start difference. First operand 30615 states and 37923 transitions. Second operand has 26 states, 26 states have (on average 12.0) internal successors, (312), 25 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:53,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:53,701 INFO L93 Difference]: Finished difference Result 39471 states and 48711 transitions. [2023-12-22 01:26:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:26:53,702 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.0) internal successors, (312), 25 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2023-12-22 01:26:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:53,735 INFO L225 Difference]: With dead ends: 39471 [2023-12-22 01:26:53,735 INFO L226 Difference]: Without dead ends: 31821 [2023-12-22 01:26:53,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:26:53,746 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 15084 mSDsluCounter, 6594 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15084 SdHoareTripleChecker+Valid, 8140 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:53,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15084 Valid, 8140 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:26:53,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31821 states. [2023-12-22 01:26:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31821 to 30615. [2023-12-22 01:26:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30615 states, 30613 states have (on average 1.235128866821285) internal successors, (37811), 30614 states have internal predecessors, (37811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:54,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30615 states to 30615 states and 37811 transitions. [2023-12-22 01:26:54,852 INFO L78 Accepts]: Start accepts. Automaton has 30615 states and 37811 transitions. Word has length 162 [2023-12-22 01:26:54,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:54,852 INFO L495 AbstractCegarLoop]: Abstraction has 30615 states and 37811 transitions. [2023-12-22 01:26:54,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.0) internal successors, (312), 25 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:54,853 INFO L276 IsEmpty]: Start isEmpty. Operand 30615 states and 37811 transitions. [2023-12-22 01:26:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:26:54,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:54,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:54,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-22 01:26:55,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:55,060 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:55,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:55,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1947979386, now seen corresponding path program 1 times [2023-12-22 01:26:55,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:55,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702058456] [2023-12-22 01:26:55,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:55,062 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:55,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:55,063 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:55,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 01:26:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:55,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:26:55,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 13 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:56,930 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:57,627 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 13 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:57,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:57,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702058456] [2023-12-22 01:26:57,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702058456] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:57,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:57,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:26:57,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022076620] [2023-12-22 01:26:57,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:57,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:57,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:57,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:57,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:57,629 INFO L87 Difference]: Start difference. First operand 30615 states and 37811 transitions. Second operand has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 26 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:04,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:04,465 INFO L93 Difference]: Finished difference Result 43577 states and 53184 transitions. [2023-12-22 01:27:04,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 01:27:04,466 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 26 states have internal predecessors, (320), 0 states have call successors, (0), 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 163 [2023-12-22 01:27:04,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:04,499 INFO L225 Difference]: With dead ends: 43577 [2023-12-22 01:27:04,500 INFO L226 Difference]: Without dead ends: 34663 [2023-12-22 01:27:04,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 01:27:04,513 INFO L413 NwaCegarLoop]: 1641 mSDtfsCounter, 5310 mSDsluCounter, 25431 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5310 SdHoareTripleChecker+Valid, 27072 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:04,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5310 Valid, 27072 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-22 01:27:04,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34663 states. [2023-12-22 01:27:05,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34663 to 23327. [2023-12-22 01:27:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23327 states, 23325 states have (on average 1.2444587352625938) internal successors, (29027), 23326 states have internal predecessors, (29027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23327 states to 23327 states and 29027 transitions. [2023-12-22 01:27:05,371 INFO L78 Accepts]: Start accepts. Automaton has 23327 states and 29027 transitions. Word has length 163 [2023-12-22 01:27:05,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:05,372 INFO L495 AbstractCegarLoop]: Abstraction has 23327 states and 29027 transitions. [2023-12-22 01:27:05,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 26 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 23327 states and 29027 transitions. [2023-12-22 01:27:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:05,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:05,375 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:27:05,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-12-22 01:27:05,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:05,575 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:05,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:05,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1992282338, now seen corresponding path program 1 times [2023-12-22 01:27:05,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:05,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322639510] [2023-12-22 01:27:05,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:05,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:05,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:05,577 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:27:05,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 01:27:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:05,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:05,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 22 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:07,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 22 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:07,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:07,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322639510] [2023-12-22 01:27:07,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322639510] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:07,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:07,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598995408] [2023-12-22 01:27:07,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:07,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:07,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:07,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:07,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:07,964 INFO L87 Difference]: Start difference. First operand 23327 states and 29027 transitions. Second operand has 26 states, 26 states have (on average 12.115384615384615) internal successors, (315), 26 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:14,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:14,473 INFO L93 Difference]: Finished difference Result 32813 states and 40366 transitions. [2023-12-22 01:27:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:27:14,474 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.115384615384615) internal successors, (315), 26 states have internal predecessors, (315), 0 states have call successors, (0), 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 163 [2023-12-22 01:27:14,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:14,504 INFO L225 Difference]: With dead ends: 32813 [2023-12-22 01:27:14,504 INFO L226 Difference]: Without dead ends: 30219 [2023-12-22 01:27:14,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:27:14,515 INFO L413 NwaCegarLoop]: 1655 mSDtfsCounter, 5433 mSDsluCounter, 23932 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5433 SdHoareTripleChecker+Valid, 25587 SdHoareTripleChecker+Invalid, 2487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:14,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5433 Valid, 25587 Invalid, 2487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 01:27:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30219 states. [2023-12-22 01:27:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30219 to 27099. [2023-12-22 01:27:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27099 states, 27097 states have (on average 1.2369265970402628) internal successors, (33517), 27098 states have internal predecessors, (33517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27099 states to 27099 states and 33517 transitions. [2023-12-22 01:27:15,610 INFO L78 Accepts]: Start accepts. Automaton has 27099 states and 33517 transitions. Word has length 163 [2023-12-22 01:27:15,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:15,610 INFO L495 AbstractCegarLoop]: Abstraction has 27099 states and 33517 transitions. [2023-12-22 01:27:15,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.115384615384615) internal successors, (315), 26 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:15,610 INFO L276 IsEmpty]: Start isEmpty. Operand 27099 states and 33517 transitions. [2023-12-22 01:27:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:15,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:15,614 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:27:15,617 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 (36)] Ended with exit code 0 [2023-12-22 01:27:15,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:15,814 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:15,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash -206400262, now seen corresponding path program 1 times [2023-12-22 01:27:15,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:15,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275262553] [2023-12-22 01:27:15,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:15,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:15,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:15,816 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:27:15,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 01:27:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:15,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:15,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:17,486 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 31 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:17,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 31 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:18,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:18,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275262553] [2023-12-22 01:27:18,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275262553] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:18,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:18,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:18,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907222939] [2023-12-22 01:27:18,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:18,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:18,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:18,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:18,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:18,093 INFO L87 Difference]: Start difference. First operand 27099 states and 33517 transitions. Second operand has 26 states, 26 states have (on average 11.923076923076923) internal successors, (310), 26 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:24,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:24,292 INFO L93 Difference]: Finished difference Result 39966 states and 48878 transitions. [2023-12-22 01:27:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:27:24,292 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.923076923076923) internal successors, (310), 26 states have internal predecessors, (310), 0 states have call successors, (0), 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 163 [2023-12-22 01:27:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:24,329 INFO L225 Difference]: With dead ends: 39966 [2023-12-22 01:27:24,329 INFO L226 Difference]: Without dead ends: 36460 [2023-12-22 01:27:24,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:27:24,338 INFO L413 NwaCegarLoop]: 1669 mSDtfsCounter, 2168 mSDsluCounter, 19519 mSDsCounter, 0 mSdLazyCounter, 2323 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 21188 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:24,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2168 Valid, 21188 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2323 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 01:27:24,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36460 states. [2023-12-22 01:27:25,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36460 to 31830. [2023-12-22 01:27:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31830 states, 31828 states have (on average 1.2297662435591303) internal successors, (39141), 31829 states have internal predecessors, (39141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31830 states to 31830 states and 39141 transitions. [2023-12-22 01:27:25,767 INFO L78 Accepts]: Start accepts. Automaton has 31830 states and 39141 transitions. Word has length 163 [2023-12-22 01:27:25,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:25,768 INFO L495 AbstractCegarLoop]: Abstraction has 31830 states and 39141 transitions. [2023-12-22 01:27:25,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.923076923076923) internal successors, (310), 26 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 31830 states and 39141 transitions. [2023-12-22 01:27:25,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:25,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:25,772 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:27:25,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-22 01:27:25,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:25,972 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:25,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash 291600542, now seen corresponding path program 1 times [2023-12-22 01:27:25,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:25,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149344520] [2023-12-22 01:27:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:25,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:25,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:25,974 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:27:25,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-22 01:27:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:26,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:26,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 40 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:27,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 40 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:28,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:28,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149344520] [2023-12-22 01:27:28,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149344520] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:28,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:28,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:28,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542323004] [2023-12-22 01:27:28,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:28,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:28,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:28,121 INFO L87 Difference]: Start difference. First operand 31830 states and 39141 transitions. Second operand has 26 states, 26 states have (on average 11.73076923076923) internal successors, (305), 26 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:32,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:32,910 INFO L93 Difference]: Finished difference Result 50858 states and 62127 transitions. [2023-12-22 01:27:32,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-22 01:27:32,911 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.73076923076923) internal successors, (305), 26 states have internal predecessors, (305), 0 states have call successors, (0), 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 163 [2023-12-22 01:27:32,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:32,951 INFO L225 Difference]: With dead ends: 50858 [2023-12-22 01:27:32,952 INFO L226 Difference]: Without dead ends: 46100 [2023-12-22 01:27:32,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2023-12-22 01:27:32,961 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1995 mSDsluCounter, 25200 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 26787 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:32,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 26787 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 01:27:32,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46100 states. [2023-12-22 01:27:35,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46100 to 43372. [2023-12-22 01:27:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43372 states, 43370 states have (on average 1.2194604565367766) internal successors, (52888), 43371 states have internal predecessors, (52888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43372 states to 43372 states and 52888 transitions. [2023-12-22 01:27:35,150 INFO L78 Accepts]: Start accepts. Automaton has 43372 states and 52888 transitions. Word has length 163 [2023-12-22 01:27:35,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:35,150 INFO L495 AbstractCegarLoop]: Abstraction has 43372 states and 52888 transitions. [2023-12-22 01:27:35,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.73076923076923) internal successors, (305), 26 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 43372 states and 52888 transitions. [2023-12-22 01:27:35,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:35,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:35,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:27:35,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-22 01:27:35,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:35,432 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:35,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:35,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1000129670, now seen corresponding path program 1 times [2023-12-22 01:27:35,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:35,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140393204] [2023-12-22 01:27:35,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:35,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:35,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:35,434 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:27:35,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-22 01:27:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:35,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:35,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 49 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:36,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 49 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:37,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:37,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140393204] [2023-12-22 01:27:37,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140393204] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:37,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:37,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:37,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874401764] [2023-12-22 01:27:37,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:37,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:37,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:37,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:37,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:37,438 INFO L87 Difference]: Start difference. First operand 43372 states and 52888 transitions. Second operand has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 26 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:46,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:46,411 INFO L93 Difference]: Finished difference Result 70927 states and 85987 transitions. [2023-12-22 01:27:46,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:27:46,412 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 26 states have internal predecessors, (300), 0 states have call successors, (0), 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 163 [2023-12-22 01:27:46,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:46,472 INFO L225 Difference]: With dead ends: 70927 [2023-12-22 01:27:46,472 INFO L226 Difference]: Without dead ends: 57675 [2023-12-22 01:27:46,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:27:46,482 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 2104 mSDsluCounter, 24481 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 26165 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:46,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 26165 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-22 01:27:46,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57675 states. [2023-12-22 01:27:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57675 to 50538. [2023-12-22 01:27:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50538 states, 50536 states have (on average 1.2102659490264367) internal successors, (61162), 50537 states have internal predecessors, (61162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:49,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50538 states to 50538 states and 61162 transitions. [2023-12-22 01:27:49,458 INFO L78 Accepts]: Start accepts. Automaton has 50538 states and 61162 transitions. Word has length 163 [2023-12-22 01:27:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:49,458 INFO L495 AbstractCegarLoop]: Abstraction has 50538 states and 61162 transitions. [2023-12-22 01:27:49,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 26 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 50538 states and 61162 transitions. [2023-12-22 01:27:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:49,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:49,462 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:27:49,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-12-22 01:27:49,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:49,663 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:49,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1301602846, now seen corresponding path program 1 times [2023-12-22 01:27:49,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:49,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770779201] [2023-12-22 01:27:49,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:49,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:49,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:49,665 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:27:49,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-22 01:27:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:49,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:49,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 58 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:51,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 58 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:52,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:52,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770779201] [2023-12-22 01:27:52,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770779201] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:52,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:52,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:52,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609174669] [2023-12-22 01:27:52,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:52,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:52,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:52,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:52,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:52,097 INFO L87 Difference]: Start difference. First operand 50538 states and 61162 transitions. Second operand has 26 states, 26 states have (on average 11.346153846153847) internal successors, (295), 26 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:04,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:04,963 INFO L93 Difference]: Finished difference Result 127913 states and 151889 transitions. [2023-12-22 01:28:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 01:28:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.346153846153847) internal successors, (295), 26 states have internal predecessors, (295), 0 states have call successors, (0), 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 163 [2023-12-22 01:28:04,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:05,086 INFO L225 Difference]: With dead ends: 127913 [2023-12-22 01:28:05,087 INFO L226 Difference]: Without dead ends: 114485 [2023-12-22 01:28:05,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 01:28:05,101 INFO L413 NwaCegarLoop]: 1701 mSDtfsCounter, 5529 mSDsluCounter, 22956 mSDsCounter, 0 mSdLazyCounter, 2951 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5529 SdHoareTripleChecker+Valid, 24657 SdHoareTripleChecker+Invalid, 2974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:05,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5529 Valid, 24657 Invalid, 2974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2951 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-22 01:28:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114485 states. [2023-12-22 01:28:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114485 to 86113. [2023-12-22 01:28:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86113 states, 86111 states have (on average 1.1923796030704557) internal successors, (102677), 86112 states have internal predecessors, (102677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86113 states to 86113 states and 102677 transitions. [2023-12-22 01:28:11,199 INFO L78 Accepts]: Start accepts. Automaton has 86113 states and 102677 transitions. Word has length 163 [2023-12-22 01:28:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:11,199 INFO L495 AbstractCegarLoop]: Abstraction has 86113 states and 102677 transitions. [2023-12-22 01:28:11,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.346153846153847) internal successors, (295), 26 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 86113 states and 102677 transitions. [2023-12-22 01:28:11,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:28:11,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:11,229 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:28:11,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-22 01:28:11,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:11,431 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:11,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash -242608889, now seen corresponding path program 2 times [2023-12-22 01:28:11,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:11,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211656172] [2023-12-22 01:28:11,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:28:11,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:11,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:11,433 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:28:11,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-22 01:28:11,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:28:11,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:28:11,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:28:11,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2023-12-22 01:28:13,760 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:13,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:13,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211656172] [2023-12-22 01:28:13,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211656172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:13,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:13,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:28:13,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828200402] [2023-12-22 01:28:13,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:13,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:28:13,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:13,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:28:13,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:28:13,761 INFO L87 Difference]: Start difference. First operand 86113 states and 102677 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:20,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:20,575 INFO L93 Difference]: Finished difference Result 123736 states and 148901 transitions. [2023-12-22 01:28:20,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:28:20,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 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 223 [2023-12-22 01:28:20,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:20,701 INFO L225 Difference]: With dead ends: 123736 [2023-12-22 01:28:20,701 INFO L226 Difference]: Without dead ends: 108161 [2023-12-22 01:28:20,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:28:20,727 INFO L413 NwaCegarLoop]: 1613 mSDtfsCounter, 3328 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:20,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 3500 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:28:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108161 states. [2023-12-22 01:28:26,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108161 to 85905. [2023-12-22 01:28:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85905 states, 85903 states have (on average 1.186943412919223) internal successors, (101962), 85904 states have internal predecessors, (101962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85905 states to 85905 states and 101962 transitions. [2023-12-22 01:28:27,137 INFO L78 Accepts]: Start accepts. Automaton has 85905 states and 101962 transitions. Word has length 223 [2023-12-22 01:28:27,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:27,138 INFO L495 AbstractCegarLoop]: Abstraction has 85905 states and 101962 transitions. [2023-12-22 01:28:27,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:27,138 INFO L276 IsEmpty]: Start isEmpty. Operand 85905 states and 101962 transitions. [2023-12-22 01:28:27,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:28:27,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:27,165 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:28:27,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:27,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:27,368 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:27,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:27,368 INFO L85 PathProgramCache]: Analyzing trace with hash 112096683, now seen corresponding path program 2 times [2023-12-22 01:28:27,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:27,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531065820] [2023-12-22 01:28:27,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:28:27,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:27,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:27,369 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:28:27,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 01:28:27,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:28:27,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:28:27,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:28:27,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2023-12-22 01:28:29,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:29,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:29,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531065820] [2023-12-22 01:28:29,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531065820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:29,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:29,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:28:29,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013046158] [2023-12-22 01:28:29,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:29,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:28:29,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:29,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:28:29,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:28:29,647 INFO L87 Difference]: Start difference. First operand 85905 states and 101962 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:36,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:36,746 INFO L93 Difference]: Finished difference Result 116270 states and 139542 transitions. [2023-12-22 01:28:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:28:36,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2023-12-22 01:28:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:36,877 INFO L225 Difference]: With dead ends: 116270 [2023-12-22 01:28:36,877 INFO L226 Difference]: Without dead ends: 109868 [2023-12-22 01:28:36,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:28:36,901 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 4774 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:36,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 3565 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:28:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109868 states. [2023-12-22 01:28:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109868 to 91181. [2023-12-22 01:28:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91181 states, 91179 states have (on average 1.184505204049178) internal successors, (108002), 91180 states have internal predecessors, (108002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91181 states to 91181 states and 108002 transitions. [2023-12-22 01:28:43,726 INFO L78 Accepts]: Start accepts. Automaton has 91181 states and 108002 transitions. Word has length 223 [2023-12-22 01:28:43,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:43,726 INFO L495 AbstractCegarLoop]: Abstraction has 91181 states and 108002 transitions. [2023-12-22 01:28:43,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 91181 states and 108002 transitions. [2023-12-22 01:28:43,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:28:43,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:43,751 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:28:43,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:43,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:43,954 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:43,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:43,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1897978759, now seen corresponding path program 2 times [2023-12-22 01:28:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:43,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653316940] [2023-12-22 01:28:43,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:28:43,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:43,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:43,956 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:28:43,957 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 (43)] Waiting until timeout for monitored process [2023-12-22 01:28:44,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:28:44,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:28:44,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:28:44,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-12-22 01:28:46,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:46,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:46,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653316940] [2023-12-22 01:28:46,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653316940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:46,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:46,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:28:46,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850597488] [2023-12-22 01:28:46,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:46,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:28:46,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:28:46,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:28:46,270 INFO L87 Difference]: Start difference. First operand 91181 states and 108002 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:53,531 INFO L93 Difference]: Finished difference Result 119832 states and 143456 transitions. [2023-12-22 01:28:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:28:53,532 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 223 [2023-12-22 01:28:53,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:53,664 INFO L225 Difference]: With dead ends: 119832 [2023-12-22 01:28:53,665 INFO L226 Difference]: Without dead ends: 112862 [2023-12-22 01:28:53,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:28:53,690 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 3276 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3276 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:53,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3276 Valid, 3601 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:28:53,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112862 states. [2023-12-22 01:29:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112862 to 97251. [2023-12-22 01:29:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97251 states, 97249 states have (on average 1.1820892759822723) internal successors, (114957), 97250 states have internal predecessors, (114957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:00,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97251 states to 97251 states and 114957 transitions. [2023-12-22 01:29:00,797 INFO L78 Accepts]: Start accepts. Automaton has 97251 states and 114957 transitions. Word has length 223 [2023-12-22 01:29:00,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:00,797 INFO L495 AbstractCegarLoop]: Abstraction has 97251 states and 114957 transitions. [2023-12-22 01:29:00,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:00,797 INFO L276 IsEmpty]: Start isEmpty. Operand 97251 states and 114957 transitions. [2023-12-22 01:29:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:29:00,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:00,824 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:29:00,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-22 01:29:01,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:01,024 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:01,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:01,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1898987733, now seen corresponding path program 2 times [2023-12-22 01:29:01,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:01,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670676210] [2023-12-22 01:29:01,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:29:01,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:01,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:01,026 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:29:01,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-22 01:29:01,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:29:01,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:29:01,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:29:01,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-12-22 01:29:03,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:29:03,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:03,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670676210] [2023-12-22 01:29:03,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670676210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:29:03,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:29:03,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:29:03,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285491416] [2023-12-22 01:29:03,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:29:03,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:29:03,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:03,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:29:03,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:03,473 INFO L87 Difference]: Start difference. First operand 97251 states and 114957 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:11,088 INFO L93 Difference]: Finished difference Result 127438 states and 152295 transitions. [2023-12-22 01:29:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:29:11,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2023-12-22 01:29:11,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:11,240 INFO L225 Difference]: With dead ends: 127438 [2023-12-22 01:29:11,240 INFO L226 Difference]: Without dead ends: 118146 [2023-12-22 01:29:11,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:11,269 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 4735 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 3597 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:29:11,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4735 Valid, 3597 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:29:11,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118146 states. [2023-12-22 01:29:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118146 to 104938. [2023-12-22 01:29:19,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104938 states, 104936 states have (on average 1.178909049325303) internal successors, (123710), 104937 states have internal predecessors, (123710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104938 states to 104938 states and 123710 transitions. [2023-12-22 01:29:19,433 INFO L78 Accepts]: Start accepts. Automaton has 104938 states and 123710 transitions. Word has length 223 [2023-12-22 01:29:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:19,434 INFO L495 AbstractCegarLoop]: Abstraction has 104938 states and 123710 transitions. [2023-12-22 01:29:19,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 104938 states and 123710 transitions. [2023-12-22 01:29:19,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:29:19,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:19,463 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:29:19,468 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 (44)] Ended with exit code 0 [2023-12-22 01:29:19,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:19,664 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:19,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:19,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1104249351, now seen corresponding path program 2 times [2023-12-22 01:29:19,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:19,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537602451] [2023-12-22 01:29:19,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:29:19,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:19,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:19,666 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:29:19,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 01:29:19,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:29:19,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:29:19,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:29:19,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-12-22 01:29:21,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:29:21,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:21,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537602451] [2023-12-22 01:29:21,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537602451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:29:21,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:29:21,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:29:21,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403222875] [2023-12-22 01:29:21,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:29:21,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:29:21,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:21,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:29:21,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:21,978 INFO L87 Difference]: Start difference. First operand 104938 states and 123710 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:30,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:30,403 INFO L93 Difference]: Finished difference Result 136699 states and 162970 transitions. [2023-12-22 01:29:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:29:30,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2023-12-22 01:29:30,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:30,540 INFO L225 Difference]: With dead ends: 136699 [2023-12-22 01:29:30,540 INFO L226 Difference]: Without dead ends: 126343 [2023-12-22 01:29:30,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:30,562 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 3305 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:29:30,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 3578 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:29:30,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126343 states. [2023-12-22 01:29:39,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126343 to 114855. [2023-12-22 01:29:39,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114855 states, 114853 states have (on average 1.176956631520291) internal successors, (135177), 114854 states have internal predecessors, (135177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114855 states to 114855 states and 135177 transitions. [2023-12-22 01:29:39,471 INFO L78 Accepts]: Start accepts. Automaton has 114855 states and 135177 transitions. Word has length 223 [2023-12-22 01:29:39,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:39,471 INFO L495 AbstractCegarLoop]: Abstraction has 114855 states and 135177 transitions. [2023-12-22 01:29:39,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:39,471 INFO L276 IsEmpty]: Start isEmpty. Operand 114855 states and 135177 transitions. [2023-12-22 01:29:39,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:29:39,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:39,495 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:29:39,500 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 (45)] Ended with exit code 0 [2023-12-22 01:29:39,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:39,696 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:39,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash -888985429, now seen corresponding path program 2 times [2023-12-22 01:29:39,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:39,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880445677] [2023-12-22 01:29:39,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:29:39,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:39,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:39,698 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:29:39,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-22 01:29:39,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:29:39,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:29:39,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:29:39,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2023-12-22 01:29:42,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:29:42,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:42,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880445677] [2023-12-22 01:29:42,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880445677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:29:42,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:29:42,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:29:42,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148023888] [2023-12-22 01:29:42,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:29:42,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:29:42,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:29:42,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:42,144 INFO L87 Difference]: Start difference. First operand 114855 states and 135177 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:50,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:50,818 INFO L93 Difference]: Finished difference Result 143572 states and 170702 transitions. [2023-12-22 01:29:50,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:29:50,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 0 states have call successors, (0), 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 223 [2023-12-22 01:29:50,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:50,955 INFO L225 Difference]: With dead ends: 143572 [2023-12-22 01:29:50,955 INFO L226 Difference]: Without dead ends: 135558 [2023-12-22 01:29:50,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:50,972 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 4811 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4811 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:29:50,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4811 Valid, 3566 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:29:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135558 states. [2023-12-22 01:30:00,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135558 to 123191. [2023-12-22 01:30:00,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123191 states, 123189 states have (on average 1.1760303273831267) internal successors, (144874), 123190 states have internal predecessors, (144874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123191 states to 123191 states and 144874 transitions. [2023-12-22 01:30:00,357 INFO L78 Accepts]: Start accepts. Automaton has 123191 states and 144874 transitions. Word has length 223 [2023-12-22 01:30:00,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:00,358 INFO L495 AbstractCegarLoop]: Abstraction has 123191 states and 144874 transitions. [2023-12-22 01:30:00,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:00,358 INFO L276 IsEmpty]: Start isEmpty. Operand 123191 states and 144874 transitions. [2023-12-22 01:30:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:30:00,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:00,385 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:30:00,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-22 01:30:00,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:30:00,586 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:00,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:00,586 INFO L85 PathProgramCache]: Analyzing trace with hash 463732578, now seen corresponding path program 1 times [2023-12-22 01:30:00,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:00,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257453716] [2023-12-22 01:30:00,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:30:00,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:30:00,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:00,587 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:30:00,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-22 01:30:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:30:00,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:30:00,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:03,558 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 38 proven. 302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:03,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:30:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 38 proven. 302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:04,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:04,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257453716] [2023-12-22 01:30:04,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257453716] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:30:04,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:30:04,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:30:04,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442094788] [2023-12-22 01:30:04,654 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:30:04,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:30:04,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:04,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:30:04,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:30:04,655 INFO L87 Difference]: Start difference. First operand 123191 states and 144874 transitions. Second operand has 36 states, 36 states have (on average 12.11111111111111) internal successors, (436), 36 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:29,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:29,952 INFO L93 Difference]: Finished difference Result 158602 states and 186057 transitions. [2023-12-22 01:30:29,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:30:29,952 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 12.11111111111111) internal successors, (436), 36 states have internal predecessors, (436), 0 states have call successors, (0), 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 224 [2023-12-22 01:30:29,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:30,120 INFO L225 Difference]: With dead ends: 158602 [2023-12-22 01:30:30,121 INFO L226 Difference]: Without dead ends: 146404 [2023-12-22 01:30:30,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4412 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:30:30,140 INFO L413 NwaCegarLoop]: 1790 mSDtfsCounter, 4254 mSDsluCounter, 34853 mSDsCounter, 0 mSdLazyCounter, 7215 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4254 SdHoareTripleChecker+Valid, 36643 SdHoareTripleChecker+Invalid, 7239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 7215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:30,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4254 Valid, 36643 Invalid, 7239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 7215 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-12-22 01:30:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146404 states. [2023-12-22 01:30:36,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146404 to 73538. [2023-12-22 01:30:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73538 states, 73536 states have (on average 1.1851746083550914) internal successors, (87153), 73537 states have internal predecessors, (87153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:36,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73538 states to 73538 states and 87153 transitions. [2023-12-22 01:30:36,399 INFO L78 Accepts]: Start accepts. Automaton has 73538 states and 87153 transitions. Word has length 224 [2023-12-22 01:30:36,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:36,399 INFO L495 AbstractCegarLoop]: Abstraction has 73538 states and 87153 transitions. [2023-12-22 01:30:36,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 12.11111111111111) internal successors, (436), 36 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:36,399 INFO L276 IsEmpty]: Start isEmpty. Operand 73538 states and 87153 transitions. [2023-12-22 01:30:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:30:36,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:36,414 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:30:36,418 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 (47)] Ended with exit code 0 [2023-12-22 01:30:36,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:30:36,615 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:36,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:36,615 INFO L85 PathProgramCache]: Analyzing trace with hash -8497914, now seen corresponding path program 1 times [2023-12-22 01:30:36,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:36,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415778238] [2023-12-22 01:30:36,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:30:36,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:30:36,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:36,617 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:30:36,617 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 (48)] Waiting until timeout for monitored process [2023-12-22 01:30:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:30:36,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:30:36,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 54 proven. 286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:39,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:30:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 54 proven. 286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:40,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:40,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415778238] [2023-12-22 01:30:40,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415778238] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:30:40,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:30:40,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:30:40,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035149806] [2023-12-22 01:30:40,355 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:30:40,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:30:40,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:40,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:30:40,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:30:40,356 INFO L87 Difference]: Start difference. First operand 73538 states and 87153 transitions. Second operand has 36 states, 36 states have (on average 11.972222222222221) internal successors, (431), 36 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:56,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:56,682 INFO L93 Difference]: Finished difference Result 108860 states and 128405 transitions. [2023-12-22 01:30:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-22 01:30:56,683 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.972222222222221) internal successors, (431), 36 states have internal predecessors, (431), 0 states have call successors, (0), 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 224 [2023-12-22 01:30:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:56,771 INFO L225 Difference]: With dead ends: 108860 [2023-12-22 01:30:56,771 INFO L226 Difference]: Without dead ends: 95499 [2023-12-22 01:30:56,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=960, Invalid=7412, Unknown=0, NotChecked=0, Total=8372 [2023-12-22 01:30:56,787 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 5050 mSDsluCounter, 39769 mSDsCounter, 0 mSdLazyCounter, 5651 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5050 SdHoareTripleChecker+Valid, 41467 SdHoareTripleChecker+Invalid, 5668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 5651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:56,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5050 Valid, 41467 Invalid, 5668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 5651 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-22 01:30:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95499 states. [2023-12-22 01:31:03,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95499 to 83306. [2023-12-22 01:31:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83306 states, 83304 states have (on average 1.1824522231825603) internal successors, (98503), 83305 states have internal predecessors, (98503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:31:03,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83306 states to 83306 states and 98503 transitions. [2023-12-22 01:31:03,736 INFO L78 Accepts]: Start accepts. Automaton has 83306 states and 98503 transitions. Word has length 224 [2023-12-22 01:31:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:03,736 INFO L495 AbstractCegarLoop]: Abstraction has 83306 states and 98503 transitions. [2023-12-22 01:31:03,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.972222222222221) internal successors, (431), 36 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:31:03,737 INFO L276 IsEmpty]: Start isEmpty. Operand 83306 states and 98503 transitions. [2023-12-22 01:31:03,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:31:03,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:03,751 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:31:03,755 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 (48)] Ended with exit code 0 [2023-12-22 01:31:03,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:31:03,951 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:03,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:03,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1750342174, now seen corresponding path program 1 times [2023-12-22 01:31:03,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:03,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172842233] [2023-12-22 01:31:03,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:03,952 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 01:31:03,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:03,953 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:31:03,954 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 (49)] Waiting until timeout for monitored process [2023-12-22 01:31:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:04,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:31:04,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 70 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:06,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 70 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:07,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:07,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172842233] [2023-12-22 01:31:07,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172842233] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:07,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:07,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:31:07,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284574386] [2023-12-22 01:31:07,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:07,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:31:07,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:07,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:31:07,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:31:07,841 INFO L87 Difference]: Start difference. First operand 83306 states and 98503 transitions. Second operand has 36 states, 36 states have (on average 11.833333333333334) internal successors, (426), 36 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:31:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:31:31,021 INFO L93 Difference]: Finished difference Result 126551 states and 149155 transitions. [2023-12-22 01:31:31,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:31:31,021 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.833333333333334) internal successors, (426), 36 states have internal predecessors, (426), 0 states have call successors, (0), 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 224 [2023-12-22 01:31:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:31:31,149 INFO L225 Difference]: With dead ends: 126551 [2023-12-22 01:31:31,149 INFO L226 Difference]: Without dead ends: 109122 [2023-12-22 01:31:31,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4427 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=2311, Invalid=14719, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:31:31,175 INFO L413 NwaCegarLoop]: 1802 mSDtfsCounter, 5597 mSDsluCounter, 32582 mSDsCounter, 0 mSdLazyCounter, 6135 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5597 SdHoareTripleChecker+Valid, 34384 SdHoareTripleChecker+Invalid, 6162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:31:31,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5597 Valid, 34384 Invalid, 6162 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 6135 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-22 01:31:31,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109122 states. [2023-12-22 01:31:38,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109122 to 92725. [2023-12-22 01:31:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92725 states, 92723 states have (on average 1.1817779838874929) internal successors, (109578), 92724 states have internal predecessors, (109578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:31:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92725 states to 92725 states and 109578 transitions. [2023-12-22 01:31:39,029 INFO L78 Accepts]: Start accepts. Automaton has 92725 states and 109578 transitions. Word has length 224 [2023-12-22 01:31:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:39,030 INFO L495 AbstractCegarLoop]: Abstraction has 92725 states and 109578 transitions. [2023-12-22 01:31:39,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.833333333333334) internal successors, (426), 36 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:31:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 92725 states and 109578 transitions. [2023-12-22 01:31:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:31:39,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:39,044 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:31:39,048 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 (49)] Ended with exit code 0 [2023-12-22 01:31:39,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:31:39,245 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:39,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:39,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1155694214, now seen corresponding path program 1 times [2023-12-22 01:31:39,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:39,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095660377] [2023-12-22 01:31:39,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:39,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:31:39,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:39,247 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:31:39,247 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 (50)] Waiting until timeout for monitored process [2023-12-22 01:31:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:39,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:31:39,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 86 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:41,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 86 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:42,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:42,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095660377] [2023-12-22 01:31:42,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095660377] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:42,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:42,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:31:42,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201719395] [2023-12-22 01:31:42,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:42,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:31:42,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:42,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:31:42,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:31:42,897 INFO L87 Difference]: Start difference. First operand 92725 states and 109578 transitions. Second operand has 36 states, 36 states have (on average 11.694444444444445) internal successors, (421), 36 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:32:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:32:11,821 INFO L93 Difference]: Finished difference Result 138133 states and 162230 transitions. [2023-12-22 01:32:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-22 01:32:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.694444444444445) internal successors, (421), 36 states have internal predecessors, (421), 0 states have call successors, (0), 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 224 [2023-12-22 01:32:11,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:32:11,964 INFO L225 Difference]: With dead ends: 138133 [2023-12-22 01:32:11,965 INFO L226 Difference]: Without dead ends: 115964 [2023-12-22 01:32:11,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5611 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=2694, Invalid=17612, Unknown=0, NotChecked=0, Total=20306 [2023-12-22 01:32:11,994 INFO L413 NwaCegarLoop]: 1827 mSDtfsCounter, 5918 mSDsluCounter, 36433 mSDsCounter, 0 mSdLazyCounter, 7393 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5918 SdHoareTripleChecker+Valid, 38260 SdHoareTripleChecker+Invalid, 7427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 7393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:32:11,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5918 Valid, 38260 Invalid, 7427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 7393 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-12-22 01:32:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115964 states. [2023-12-22 01:32:20,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115964 to 94328. [2023-12-22 01:32:20,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94328 states, 94326 states have (on average 1.1785403812310498) internal successors, (111167), 94327 states have internal predecessors, (111167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:32:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94328 states to 94328 states and 111167 transitions. [2023-12-22 01:32:20,996 INFO L78 Accepts]: Start accepts. Automaton has 94328 states and 111167 transitions. Word has length 224 [2023-12-22 01:32:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:32:20,996 INFO L495 AbstractCegarLoop]: Abstraction has 94328 states and 111167 transitions. [2023-12-22 01:32:20,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.694444444444445) internal successors, (421), 36 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:32:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 94328 states and 111167 transitions. [2023-12-22 01:32:21,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:32:21,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:32:21,009 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:32:21,012 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 (50)] Forceful destruction successful, exit code 0 [2023-12-22 01:32:21,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:32:21,210 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:32:21,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:32:21,210 INFO L85 PathProgramCache]: Analyzing trace with hash -505041822, now seen corresponding path program 1 times [2023-12-22 01:32:21,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:32:21,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499838519] [2023-12-22 01:32:21,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:32:21,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:32:21,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:32:21,212 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:32:21,213 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 (51)] Waiting until timeout for monitored process [2023-12-22 01:32:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:32:21,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:32:21,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:32:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 102 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:32:24,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:32:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 102 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:32:25,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:32:25,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499838519] [2023-12-22 01:32:25,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499838519] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:32:25,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:32:25,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:32:25,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297324933] [2023-12-22 01:32:25,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:32:25,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:32:25,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:32:25,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:32:25,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:32:25,188 INFO L87 Difference]: Start difference. First operand 94328 states and 111167 transitions. Second operand has 36 states, 36 states have (on average 11.555555555555555) internal successors, (416), 36 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:32:58,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:32:58,083 INFO L93 Difference]: Finished difference Result 138199 states and 162120 transitions. [2023-12-22 01:32:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 01:32:58,083 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.555555555555555) internal successors, (416), 36 states have internal predecessors, (416), 0 states have call successors, (0), 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 224 [2023-12-22 01:32:58,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:32:58,225 INFO L225 Difference]: With dead ends: 138199 [2023-12-22 01:32:58,225 INFO L226 Difference]: Without dead ends: 115931 [2023-12-22 01:32:58,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6979 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 01:32:58,253 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 5907 mSDsluCounter, 34956 mSDsCounter, 0 mSdLazyCounter, 7716 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5907 SdHoareTripleChecker+Valid, 36799 SdHoareTripleChecker+Invalid, 7746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 7716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:32:58,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5907 Valid, 36799 Invalid, 7746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 7716 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-22 01:32:58,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115931 states. [2023-12-22 01:33:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115931 to 93160. [2023-12-22 01:33:07,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93160 states, 93158 states have (on average 1.1755512140664248) internal successors, (109512), 93159 states have internal predecessors, (109512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:33:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93160 states to 93160 states and 109512 transitions. [2023-12-22 01:33:07,724 INFO L78 Accepts]: Start accepts. Automaton has 93160 states and 109512 transitions. Word has length 224 [2023-12-22 01:33:07,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:33:07,724 INFO L495 AbstractCegarLoop]: Abstraction has 93160 states and 109512 transitions. [2023-12-22 01:33:07,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.555555555555555) internal successors, (416), 36 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:33:07,724 INFO L276 IsEmpty]: Start isEmpty. Operand 93160 states and 109512 transitions. [2023-12-22 01:33:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-22 01:33:07,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:33:07,736 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:33:07,740 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 (51)] Ended with exit code 0 [2023-12-22 01:33:07,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:33:07,937 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:33:07,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:33:07,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1349594577, now seen corresponding path program 1 times [2023-12-22 01:33:07,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:33:07,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594870237] [2023-12-22 01:33:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:33:07,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:33:07,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:33:07,939 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:33:07,945 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 (52)] Waiting until timeout for monitored process [2023-12-22 01:33:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:33:08,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:33:08,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:33:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 32 proven. 318 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:33:11,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:33:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 32 proven. 318 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:33:12,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:33:12,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594870237] [2023-12-22 01:33:12,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594870237] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:33:12,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:33:12,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:33:12,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248039788] [2023-12-22 01:33:12,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:33:12,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:33:12,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:33:12,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:33:12,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:33:12,223 INFO L87 Difference]: Start difference. First operand 93160 states and 109512 transitions. Second operand has 36 states, 36 states have (on average 12.277777777777779) internal successors, (442), 36 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:33:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:33:50,251 INFO L93 Difference]: Finished difference Result 209264 states and 243317 transitions. [2023-12-22 01:33:50,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 01:33:50,252 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 12.277777777777779) internal successors, (442), 36 states have internal predecessors, (442), 0 states have call successors, (0), 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 225 [2023-12-22 01:33:50,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:33:50,492 INFO L225 Difference]: With dead ends: 209264 [2023-12-22 01:33:50,492 INFO L226 Difference]: Without dead ends: 194909 [2023-12-22 01:33:50,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 01:33:50,529 INFO L413 NwaCegarLoop]: 1774 mSDtfsCounter, 5487 mSDsluCounter, 35619 mSDsCounter, 0 mSdLazyCounter, 6572 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5487 SdHoareTripleChecker+Valid, 37393 SdHoareTripleChecker+Invalid, 6593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 6572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:33:50,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5487 Valid, 37393 Invalid, 6593 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 6572 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-12-22 01:33:50,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194909 states. [2023-12-22 01:34:10,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194909 to 176465. [2023-12-22 01:34:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176465 states, 176463 states have (on average 1.1654511143979192) internal successors, (205659), 176464 states have internal predecessors, (205659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:34:10,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176465 states to 176465 states and 205659 transitions. [2023-12-22 01:34:10,558 INFO L78 Accepts]: Start accepts. Automaton has 176465 states and 205659 transitions. Word has length 225 [2023-12-22 01:34:10,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:34:10,558 INFO L495 AbstractCegarLoop]: Abstraction has 176465 states and 205659 transitions. [2023-12-22 01:34:10,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 12.277777777777779) internal successors, (442), 36 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:34:10,559 INFO L276 IsEmpty]: Start isEmpty. Operand 176465 states and 205659 transitions. [2023-12-22 01:34:10,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-22 01:34:10,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:34:10,626 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:34:10,631 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 (52)] Ended with exit code 0 [2023-12-22 01:34:10,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:34:10,827 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:34:10,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:34:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash 677049956, now seen corresponding path program 1 times [2023-12-22 01:34:10,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:34:10,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384675743] [2023-12-22 01:34:10,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:34:10,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:34:10,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:34:10,829 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:34:10,830 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 (53)] Waiting until timeout for monitored process [2023-12-22 01:34:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:34:10,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:34:10,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:34:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 89 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:34:11,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:34:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:34:11,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:34:11,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384675743] [2023-12-22 01:34:11,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384675743] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 01:34:11,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 01:34:11,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 01:34:11,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078384380] [2023-12-22 01:34:11,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:34:11,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:34:11,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:34:11,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:34:11,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 01:34:11,543 INFO L87 Difference]: Start difference. First operand 176465 states and 205659 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:34:14,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 01:34:27,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 01:35:10,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 01:36:01,354 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 01:36:01,355 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 01:36:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:36:01,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 01:36:01,356 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 848 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:36:01,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 273 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 92.0s Time] [2023-12-22 01:36:01,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 01:36:01,362 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 (53)] Ended with exit code 0 [2023-12-22 01:36:01,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:36:01,563 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (176465states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (180656 states constructed, input type IntersectNwa). [2023-12-22 01:36:01,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 01:36:01,582 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:36:01,584 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 01:36:01,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:36:01 BoogieIcfgContainer [2023-12-22 01:36:01,585 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 01:36:01,585 INFO L158 Benchmark]: Toolchain (without parser) took 841942.61ms. Allocated memory was 209.7MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 144.6MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 5.6GB. Max. memory is 8.0GB. [2023-12-22 01:36:01,586 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 209.7MB. Free memory is still 159.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 01:36:01,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1347.37ms. Allocated memory was 209.7MB in the beginning and 265.3MB in the end (delta: 55.6MB). Free memory was 144.6MB in the beginning and 183.8MB in the end (delta: -39.2MB). Peak memory consumption was 136.4MB. Max. memory is 8.0GB. [2023-12-22 01:36:01,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.82ms. Allocated memory is still 265.3MB. Free memory was 183.8MB in the beginning and 178.6MB in the end (delta: 5.2MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. [2023-12-22 01:36:01,587 INFO L158 Benchmark]: Boogie Preprocessor took 256.89ms. Allocated memory is still 265.3MB. Free memory was 178.6MB in the beginning and 139.8MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-22 01:36:01,587 INFO L158 Benchmark]: RCFGBuilder took 24177.74ms. Allocated memory was 265.3MB in the beginning and 431.0MB in the end (delta: 165.7MB). Free memory was 139.8MB in the beginning and 211.1MB in the end (delta: -71.3MB). Peak memory consumption was 155.2MB. Max. memory is 8.0GB. [2023-12-22 01:36:01,592 INFO L158 Benchmark]: TraceAbstraction took 815985.14ms. Allocated memory was 431.0MB in the beginning and 6.5GB in the end (delta: 6.0GB). Free memory was 210.5MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 5.5GB. Max. memory is 8.0GB. [2023-12-22 01:36:01,592 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 209.7MB. Free memory is still 159.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1347.37ms. Allocated memory was 209.7MB in the beginning and 265.3MB in the end (delta: 55.6MB). Free memory was 144.6MB in the beginning and 183.8MB in the end (delta: -39.2MB). Peak memory consumption was 136.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 168.82ms. Allocated memory is still 265.3MB. Free memory was 183.8MB in the beginning and 178.6MB in the end (delta: 5.2MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 256.89ms. Allocated memory is still 265.3MB. Free memory was 178.6MB in the beginning and 139.8MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 24177.74ms. Allocated memory was 265.3MB in the beginning and 431.0MB in the end (delta: 165.7MB). Free memory was 139.8MB in the beginning and 211.1MB in the end (delta: -71.3MB). Peak memory consumption was 155.2MB. Max. memory is 8.0GB. * TraceAbstraction took 815985.14ms. Allocated memory was 431.0MB in the beginning and 6.5GB in the end (delta: 6.0GB). Free memory was 210.5MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 5.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 675). Cancelled while NwaCegarLoop was constructing difference of abstraction (176465states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (180656 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 516]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 516). Cancelled while NwaCegarLoop was constructing difference of abstraction (176465states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (180656 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 851 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 815.9s, OverallIterations: 52, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 598.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205662 SdHoareTripleChecker+Valid, 359.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 205662 mSDsluCounter, 571825 SdHoareTripleChecker+Invalid, 314.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 493431 mSDsCounter, 6059 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83987 IncrementalHoareTripleChecker+Invalid, 90046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6059 mSolverCounterUnsat, 78394 mSDtfsCounter, 83987 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12124 GetRequests, 10465 SyntacticMatches, 0 SemanticMatches, 1659 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38023 ImplicationChecksByTransitivity, 95.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176465occurred in iteration=51, InterpolantAutomatonStates: 1259, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 131.7s AutomataMinimizationTime, 51 MinimizatonAttempts, 392299 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 69.7s InterpolantComputationTime, 6990 NumberOfCodeBlocks, 6150 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 11091 ConstructedInterpolants, 3008 QuantifiedInterpolants, 147543 SizeOfPredicates, 255 NumberOfNonLiveVariables, 14154 ConjunctsInSsa, 424 ConjunctsInUnsatCore, 78 InterpolantComputations, 27 PerfectInterpolantSequences, 4237/9756 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown