/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_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 01:23:23,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 01:23:23,396 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 01:23:23,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 01:23:23,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 01:23:23,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 01:23:23,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 01:23:23,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 01:23:23,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 01:23:23,427 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 01:23:23,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 01:23:23,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 01:23:23,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 01:23:23,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 01:23:23,428 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 01:23:23,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 01:23:23,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 01:23:23,429 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 01:23:23,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 01:23:23,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 01:23:23,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 01:23:23,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 01:23:23,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 01:23:23,430 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 01:23:23,430 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 01:23:23,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 01:23:23,430 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 01:23:23,430 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 01:23:23,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 01:23:23,431 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 01:23:23,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:23:23,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 01:23:23,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 01:23:23,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 01:23:23,433 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 01:23:23,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 01:23:23,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 01:23:23,433 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 01:23:23,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 01:23:23,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 01:23:23,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 01:23:23,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 01:23:23,640 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 01:23:23,641 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 01:23:23,642 INFO L431 ainManager$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_label09.c [2023-12-22 01:23:24,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 01:23:24,959 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 01:23:24,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2023-12-22 01:23:24,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84084836c/c0225740147c4142ba4370937150a3bd/FLAG7551655ca [2023-12-22 01:23:25,001 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84084836c/c0225740147c4142ba4370937150a3bd [2023-12-22 01:23:25,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 01:23:25,004 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 01:23:25,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 01:23:25,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 01:23:25,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 01:23:25,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:23:25" (1/1) ... [2023-12-22 01:23:25,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e00fa90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:25, skipping insertion in model container [2023-12-22 01:23:25,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:23:25" (1/1) ... [2023-12-22 01:23:25,121 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 01:23:25,328 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_label09.c[15547,15560] [2023-12-22 01:23:25,380 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_label09.c[23295,23308] [2023-12-22 01:23:25,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:23:25,919 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 01:23:25,962 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_label09.c[15547,15560] [2023-12-22 01:23:25,970 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_label09.c[23295,23308] [2023-12-22 01:23:26,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:23:26,392 INFO L206 MainTranslator]: Completed translation [2023-12-22 01:23:26,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26 WrapperNode [2023-12-22 01:23:26,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 01:23:26,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 01:23:26,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 01:23:26,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 01:23:26,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,544 INFO L138 Inliner]: procedures = 39, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5125 [2023-12-22 01:23:26,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 01:23:26,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 01:23:26,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 01:23:26,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 01:23:26,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,642 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 01:23:26,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 01:23:26,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 01:23:26,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 01:23:26,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 01:23:26,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (1/1) ... [2023-12-22 01:23:26,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:23:26,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 01:23:26,830 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 01:23:26,840 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 01:23:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 01:23:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 01:23:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 01:23:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 01:23:26,941 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 01:23:26,943 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 01:23:53,619 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 01:23:53,666 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 01:23:53,666 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 01:23:53,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:23:53 BoogieIcfgContainer [2023-12-22 01:23:53,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 01:23:53,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 01:23:53,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 01:23:53,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 01:23:53,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:23:25" (1/3) ... [2023-12-22 01:23:53,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297f64a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:23:53, skipping insertion in model container [2023-12-22 01:23:53,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:23:26" (2/3) ... [2023-12-22 01:23:53,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297f64a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:23:53, skipping insertion in model container [2023-12-22 01:23:53,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:23:53" (3/3) ... [2023-12-22 01:23:53,673 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2023-12-22 01:23:53,686 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 01:23:53,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 01:23:53,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 01:23:53,739 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;@1e448979, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 01:23:53,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 01:23:53,747 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 01:23:53,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:23:53,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:53,754 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 01:23:53,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:53,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:53,758 INFO L85 PathProgramCache]: Analyzing trace with hash -150309200, now seen corresponding path program 1 times [2023-12-22 01:23:53,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:53,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314955334] [2023-12-22 01:23:53,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:53,768 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 01:23:53,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:53,771 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 01:23:53,775 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 01:23:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:53,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 01:23:53,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:53,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:53,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:53,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314955334] [2023-12-22 01:23:53,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314955334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:53,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:53,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:23:53,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494205299] [2023-12-22 01:23:53,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:53,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 01:23:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:53,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 01:23:53,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:23:53,914 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 01:23:53,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:53,989 INFO L93 Difference]: Finished difference Result 1657 states and 3259 transitions. [2023-12-22 01:23:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 01:23:53,993 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 01:23:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:54,006 INFO L225 Difference]: With dead ends: 1657 [2023-12-22 01:23:54,006 INFO L226 Difference]: Without dead ends: 847 [2023-12-22 01:23:54,011 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 01:23:54,013 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 01:23:54,014 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 01:23:54,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-12-22 01:23:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2023-12-22 01:23:54,081 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 01:23:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1602 transitions. [2023-12-22 01:23:54,085 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1602 transitions. Word has length 23 [2023-12-22 01:23:54,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:54,086 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1602 transitions. [2023-12-22 01:23:54,086 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 01:23:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1602 transitions. [2023-12-22 01:23:54,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:23:54,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:54,087 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 01:23:54,100 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 01:23:54,300 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 01:23:54,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:54,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:54,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1839252942, now seen corresponding path program 1 times [2023-12-22 01:23:54,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:54,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218558822] [2023-12-22 01:23:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:54,302 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 01:23:54,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:54,303 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 01:23:54,307 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 01:23:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:54,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:23:54,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:54,408 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 01:23:54,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:54,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:54,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218558822] [2023-12-22 01:23:54,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218558822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:54,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:54,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:23:54,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125840484] [2023-12-22 01:23:54,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:54,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:23:54,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:54,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:23:54,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:23:54,412 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 01:23:54,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:54,504 INFO L93 Difference]: Finished difference Result 899 states and 1684 transitions. [2023-12-22 01:23:54,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:23:54,505 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 01:23:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:54,510 INFO L225 Difference]: With dead ends: 899 [2023-12-22 01:23:54,510 INFO L226 Difference]: Without dead ends: 847 [2023-12-22 01:23:54,510 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 01:23:54,511 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:54,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4753 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:23:54,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-12-22 01:23:54,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2023-12-22 01:23:54,531 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 01:23:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1562 transitions. [2023-12-22 01:23:54,534 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1562 transitions. Word has length 23 [2023-12-22 01:23:54,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:54,534 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1562 transitions. [2023-12-22 01:23:54,534 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 01:23:54,534 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1562 transitions. [2023-12-22 01:23:54,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 01:23:54,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:54,540 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 01:23:54,548 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 01:23:54,743 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 01:23:54,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:54,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:54,745 INFO L85 PathProgramCache]: Analyzing trace with hash -138573370, now seen corresponding path program 1 times [2023-12-22 01:23:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:54,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410645979] [2023-12-22 01:23:54,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:54,746 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 01:23:54,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:54,747 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 01:23:54,781 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 01:23:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:54,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:23:54,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:55,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:55,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:55,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:55,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410645979] [2023-12-22 01:23:55,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410645979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:55,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:55,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:23:55,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880825489] [2023-12-22 01:23:55,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:55,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:23:55,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:55,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:23:55,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:23:55,890 INFO L87 Difference]: Start difference. First operand 847 states and 1562 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 01:23:56,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:56,190 INFO L93 Difference]: Finished difference Result 1190 states and 2115 transitions. [2023-12-22 01:23:56,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:23:56,192 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 01:23:56,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:56,196 INFO L225 Difference]: With dead ends: 1190 [2023-12-22 01:23:56,196 INFO L226 Difference]: Without dead ends: 1141 [2023-12-22 01:23:56,196 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 01:23:56,197 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 4943 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4943 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:56,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4943 Valid, 2073 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:23:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2023-12-22 01:23:56,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 941. [2023-12-22 01:23:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 939 states have (on average 1.8264110756123535) internal successors, (1715), 940 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1715 transitions. [2023-12-22 01:23:56,215 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1715 transitions. Word has length 62 [2023-12-22 01:23:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:56,215 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1715 transitions. [2023-12-22 01:23:56,215 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 01:23:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1715 transitions. [2023-12-22 01:23:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 01:23:56,216 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:56,216 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 01:23:56,222 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 01:23:56,419 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 01:23:56,421 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:56,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:56,421 INFO L85 PathProgramCache]: Analyzing trace with hash -157853578, now seen corresponding path program 1 times [2023-12-22 01:23:56,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:56,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865180105] [2023-12-22 01:23:56,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:56,422 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 01:23:56,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:56,425 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 01:23:56,426 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 01:23:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:56,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:56,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:56,653 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 01:23:56,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:56,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:56,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865180105] [2023-12-22 01:23:56,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865180105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:56,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:56,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:56,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146148307] [2023-12-22 01:23:56,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:56,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:56,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:56,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:56,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:56,656 INFO L87 Difference]: Start difference. First operand 941 states and 1715 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 01:23:56,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:56,702 INFO L93 Difference]: Finished difference Result 1211 states and 2151 transitions. [2023-12-22 01:23:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:56,703 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 01:23:56,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:56,706 INFO L225 Difference]: With dead ends: 1211 [2023-12-22 01:23:56,707 INFO L226 Difference]: Without dead ends: 1068 [2023-12-22 01:23:56,708 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 01:23:56,710 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 01:23:56,711 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 01:23:56,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-12-22 01:23:56,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1063. [2023-12-22 01:23:56,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 1061 states have (on average 1.7973609802073516) internal successors, (1907), 1062 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:56,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1907 transitions. [2023-12-22 01:23:56,733 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1907 transitions. Word has length 64 [2023-12-22 01:23:56,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:56,734 INFO L495 AbstractCegarLoop]: Abstraction has 1063 states and 1907 transitions. [2023-12-22 01:23:56,734 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 01:23:56,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1907 transitions. [2023-12-22 01:23:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-22 01:23:56,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:56,735 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 01:23:56,757 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 01:23:56,959 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 01:23:56,960 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:56,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:56,960 INFO L85 PathProgramCache]: Analyzing trace with hash -660671842, now seen corresponding path program 1 times [2023-12-22 01:23:56,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:56,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746683177] [2023-12-22 01:23:56,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:56,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:56,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:56,962 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 01:23:56,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 01:23:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:57,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:23:57,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:57,074 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 01:23:57,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:57,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:57,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746683177] [2023-12-22 01:23:57,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746683177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:57,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:57,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:23:57,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546207837] [2023-12-22 01:23:57,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:57,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:23:57,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:57,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:23:57,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:23:57,075 INFO L87 Difference]: Start difference. First operand 1063 states and 1907 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 01:23:57,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:57,130 INFO L93 Difference]: Finished difference Result 1077 states and 1924 transitions. [2023-12-22 01:23:57,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:23:57,131 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 01:23:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:57,135 INFO L225 Difference]: With dead ends: 1077 [2023-12-22 01:23:57,136 INFO L226 Difference]: Without dead ends: 1075 [2023-12-22 01:23:57,136 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 01:23:57,136 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 01:23:57,137 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 01:23:57,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2023-12-22 01:23:57,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1071. [2023-12-22 01:23:57,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1069 states have (on average 1.7904583723105707) internal successors, (1914), 1070 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:57,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1914 transitions. [2023-12-22 01:23:57,155 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1914 transitions. Word has length 65 [2023-12-22 01:23:57,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:57,155 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1914 transitions. [2023-12-22 01:23:57,155 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 01:23:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1914 transitions. [2023-12-22 01:23:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:57,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:57,156 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 01:23:57,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:57,360 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 01:23:57,361 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:57,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:57,361 INFO L85 PathProgramCache]: Analyzing trace with hash -347652018, now seen corresponding path program 1 times [2023-12-22 01:23:57,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:57,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440343637] [2023-12-22 01:23:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:57,362 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 01:23:57,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:57,363 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 01:23:57,387 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 01:23:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:57,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:57,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:57,564 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 01:23:57,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:57,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:57,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440343637] [2023-12-22 01:23:57,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440343637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:57,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:57,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:57,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957126246] [2023-12-22 01:23:57,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:57,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:57,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:57,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:57,566 INFO L87 Difference]: Start difference. First operand 1071 states and 1914 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 01:23:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:57,615 INFO L93 Difference]: Finished difference Result 1593 states and 2734 transitions. [2023-12-22 01:23:57,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:57,616 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 01:23:57,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:57,620 INFO L225 Difference]: With dead ends: 1593 [2023-12-22 01:23:57,620 INFO L226 Difference]: Without dead ends: 1320 [2023-12-22 01:23:57,621 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 01:23:57,621 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 01:23:57,621 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 01:23:57,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2023-12-22 01:23:57,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1318. [2023-12-22 01:23:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 1316 states have (on average 1.7446808510638299) internal successors, (2296), 1317 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 2296 transitions. [2023-12-22 01:23:57,646 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 2296 transitions. Word has length 66 [2023-12-22 01:23:57,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:57,647 INFO L495 AbstractCegarLoop]: Abstraction has 1318 states and 2296 transitions. [2023-12-22 01:23:57,648 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 01:23:57,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 2296 transitions. [2023-12-22 01:23:57,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:57,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:57,648 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 01:23:57,652 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 01:23:57,851 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 01:23:57,852 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:57,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:57,852 INFO L85 PathProgramCache]: Analyzing trace with hash -307708082, now seen corresponding path program 1 times [2023-12-22 01:23:57,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:57,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429923227] [2023-12-22 01:23:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:57,853 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 01:23:57,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:57,854 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 01:23:57,885 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 01:23:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:57,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:57,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:58,001 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 01:23:58,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:58,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:58,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429923227] [2023-12-22 01:23:58,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429923227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:58,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:58,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:58,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245611241] [2023-12-22 01:23:58,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:58,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:58,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:58,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:58,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:58,003 INFO L87 Difference]: Start difference. First operand 1318 states and 2296 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 01:23:58,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:58,045 INFO L93 Difference]: Finished difference Result 2310 states and 3838 transitions. [2023-12-22 01:23:58,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:58,045 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 01:23:58,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:58,051 INFO L225 Difference]: With dead ends: 2310 [2023-12-22 01:23:58,051 INFO L226 Difference]: Without dead ends: 1790 [2023-12-22 01:23:58,052 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 01:23:58,053 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 01:23:58,053 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 01:23:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2023-12-22 01:23:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1788. [2023-12-22 01:23:58,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1786 states have (on average 1.6864501679731243) internal successors, (3012), 1787 states have internal predecessors, (3012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:58,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 3012 transitions. [2023-12-22 01:23:58,141 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 3012 transitions. Word has length 66 [2023-12-22 01:23:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:58,142 INFO L495 AbstractCegarLoop]: Abstraction has 1788 states and 3012 transitions. [2023-12-22 01:23:58,142 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 01:23:58,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 3012 transitions. [2023-12-22 01:23:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:58,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:58,144 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 01:23:58,159 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 01:23:58,346 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 01:23:58,349 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:58,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:58,349 INFO L85 PathProgramCache]: Analyzing trace with hash -933364146, now seen corresponding path program 1 times [2023-12-22 01:23:58,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:58,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105095277] [2023-12-22 01:23:58,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:58,350 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 01:23:58,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:58,351 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 01:23:58,353 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 01:23:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:58,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:58,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:58,478 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 01:23:58,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:58,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:58,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105095277] [2023-12-22 01:23:58,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105095277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:58,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:58,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:58,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580309302] [2023-12-22 01:23:58,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:58,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:58,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:58,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:58,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:58,480 INFO L87 Difference]: Start difference. First operand 1788 states and 3012 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 01:23:58,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:58,523 INFO L93 Difference]: Finished difference Result 3672 states and 5902 transitions. [2023-12-22 01:23:58,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:58,524 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 01:23:58,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:58,530 INFO L225 Difference]: With dead ends: 3672 [2023-12-22 01:23:58,531 INFO L226 Difference]: Without dead ends: 2682 [2023-12-22 01:23:58,532 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 01:23:58,532 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 01:23:58,532 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 01:23:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2023-12-22 01:23:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2680. [2023-12-22 01:23:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2678 states have (on average 1.6235997012696042) internal successors, (4348), 2679 states have internal predecessors, (4348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 4348 transitions. [2023-12-22 01:23:58,574 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 4348 transitions. Word has length 66 [2023-12-22 01:23:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:58,575 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 4348 transitions. [2023-12-22 01:23:58,575 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 01:23:58,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 4348 transitions. [2023-12-22 01:23:58,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:58,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:58,575 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 01:23:58,580 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 01:23:58,778 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 01:23:58,779 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:58,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:58,779 INFO L85 PathProgramCache]: Analyzing trace with hash -44630706, now seen corresponding path program 1 times [2023-12-22 01:23:58,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:58,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397482268] [2023-12-22 01:23:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:58,780 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 01:23:58,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:58,781 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 01:23:58,810 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 01:23:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:58,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:58,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:58,899 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 01:23:58,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:58,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:58,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397482268] [2023-12-22 01:23:58,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397482268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:58,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:58,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:58,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549421836] [2023-12-22 01:23:58,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:58,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:58,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:58,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:58,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:58,901 INFO L87 Difference]: Start difference. First operand 2680 states and 4348 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 01:23:58,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:58,953 INFO L93 Difference]: Finished difference Result 6252 states and 9742 transitions. [2023-12-22 01:23:58,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:58,953 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 01:23:58,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:58,964 INFO L225 Difference]: With dead ends: 6252 [2023-12-22 01:23:58,964 INFO L226 Difference]: Without dead ends: 4370 [2023-12-22 01:23:58,967 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 01:23:58,968 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 01:23:58,968 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 01:23:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2023-12-22 01:23:59,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 4368. [2023-12-22 01:23:59,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4368 states, 4366 states have (on average 1.5639028859367843) internal successors, (6828), 4367 states have internal predecessors, (6828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 6828 transitions. [2023-12-22 01:23:59,038 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 6828 transitions. Word has length 66 [2023-12-22 01:23:59,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:59,038 INFO L495 AbstractCegarLoop]: Abstraction has 4368 states and 6828 transitions. [2023-12-22 01:23:59,038 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 01:23:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 6828 transitions. [2023-12-22 01:23:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:59,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:59,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:59,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:59,242 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 01:23:59,242 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:59,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:59,242 INFO L85 PathProgramCache]: Analyzing trace with hash -79068850, now seen corresponding path program 1 times [2023-12-22 01:23:59,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:59,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077067801] [2023-12-22 01:23:59,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:59,243 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 01:23:59,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:59,244 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 01:23:59,248 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 (11)] Waiting until timeout for monitored process [2023-12-22 01:23:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:59,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:59,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:59,377 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 01:23:59,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:59,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:59,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077067801] [2023-12-22 01:23:59,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077067801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:59,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:59,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:23:59,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054636016] [2023-12-22 01:23:59,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:59,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:59,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:59,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:23:59,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:23:59,379 INFO L87 Difference]: Start difference. First operand 4368 states and 6828 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 01:23:59,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:59,448 INFO L93 Difference]: Finished difference Result 11124 states and 16846 transitions. [2023-12-22 01:23:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:23:59,449 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 01:23:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:59,467 INFO L225 Difference]: With dead ends: 11124 [2023-12-22 01:23:59,468 INFO L226 Difference]: Without dead ends: 7554 [2023-12-22 01:23:59,473 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 01:23:59,473 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 01:23:59,474 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 01:23:59,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7554 states. [2023-12-22 01:23:59,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7554 to 7552. [2023-12-22 01:23:59,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7552 states, 7550 states have (on average 1.5104635761589404) internal successors, (11404), 7551 states have internal predecessors, (11404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7552 states to 7552 states and 11404 transitions. [2023-12-22 01:23:59,653 INFO L78 Accepts]: Start accepts. Automaton has 7552 states and 11404 transitions. Word has length 66 [2023-12-22 01:23:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:59,653 INFO L495 AbstractCegarLoop]: Abstraction has 7552 states and 11404 transitions. [2023-12-22 01:23:59,653 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 01:23:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7552 states and 11404 transitions. [2023-12-22 01:23:59,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:23:59,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:59,656 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 01:23:59,663 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 01:23:59,859 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 01:23:59,859 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:59,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:59,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1661618325, now seen corresponding path program 1 times [2023-12-22 01:23:59,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:59,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556079987] [2023-12-22 01:23:59,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:59,860 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 01:23:59,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:59,861 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 01:23:59,865 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 01:23:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:59,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:23:59,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:59,998 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 01:23:59,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:23:59,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:59,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556079987] [2023-12-22 01:23:59,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556079987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:23:59,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:23:59,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:23:59,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512147366] [2023-12-22 01:23:59,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:23:59,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:23:59,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:59,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:00,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:00,000 INFO L87 Difference]: Start difference. First operand 7552 states and 11404 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 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 01:24:34,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:34,547 INFO L93 Difference]: Finished difference Result 9056 states and 14277 transitions. [2023-12-22 01:24:34,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:34,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 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 01:24:34,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:34,567 INFO L225 Difference]: With dead ends: 9056 [2023-12-22 01:24:34,568 INFO L226 Difference]: Without dead ends: 8303 [2023-12-22 01:24:34,572 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 01:24:34,572 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 875 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:34,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 548 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 34.4s Time] [2023-12-22 01:24:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8303 states. [2023-12-22 01:24:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8303 to 8303. [2023-12-22 01:24:34,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8303 states, 8301 states have (on average 1.497530418021925) internal successors, (12431), 8302 states have internal predecessors, (12431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8303 states to 8303 states and 12431 transitions. [2023-12-22 01:24:34,756 INFO L78 Accepts]: Start accepts. Automaton has 8303 states and 12431 transitions. Word has length 66 [2023-12-22 01:24:34,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:34,756 INFO L495 AbstractCegarLoop]: Abstraction has 8303 states and 12431 transitions. [2023-12-22 01:24:34,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 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 01:24:34,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8303 states and 12431 transitions. [2023-12-22 01:24:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-22 01:24:34,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:34,757 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 01:24:34,760 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 01:24:34,960 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 01:24:34,960 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:34,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:34,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1522611955, now seen corresponding path program 1 times [2023-12-22 01:24:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:34,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204045454] [2023-12-22 01:24:34,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:34,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:34,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:34,962 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 01:24:34,966 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 01:24:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:35,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:35,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:35,112 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 01:24:35,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:35,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:35,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204045454] [2023-12-22 01:24:35,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204045454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:35,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:35,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:24:35,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491929855] [2023-12-22 01:24:35,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:35,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:35,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:35,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:35,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:35,114 INFO L87 Difference]: Start difference. First operand 8303 states and 12431 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 01:24:35,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:35,201 INFO L93 Difference]: Finished difference Result 15222 states and 22805 transitions. [2023-12-22 01:24:35,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:35,201 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 01:24:35,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:35,226 INFO L225 Difference]: With dead ends: 15222 [2023-12-22 01:24:35,226 INFO L226 Difference]: Without dead ends: 11475 [2023-12-22 01:24:35,233 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 01:24:35,234 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 01:24:35,234 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 01:24:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11475 states. [2023-12-22 01:24:35,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11475 to 11473. [2023-12-22 01:24:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11473 states, 11471 states have (on average 1.4855723127887717) internal successors, (17041), 11472 states have internal predecessors, (17041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11473 states to 11473 states and 17041 transitions. [2023-12-22 01:24:35,426 INFO L78 Accepts]: Start accepts. Automaton has 11473 states and 17041 transitions. Word has length 68 [2023-12-22 01:24:35,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:35,426 INFO L495 AbstractCegarLoop]: Abstraction has 11473 states and 17041 transitions. [2023-12-22 01:24:35,426 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 01:24:35,426 INFO L276 IsEmpty]: Start isEmpty. Operand 11473 states and 17041 transitions. [2023-12-22 01:24:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:24:35,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:35,428 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 01:24:35,433 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 01:24:35,631 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 01:24:35,631 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:35,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:35,631 INFO L85 PathProgramCache]: Analyzing trace with hash 510998183, now seen corresponding path program 1 times [2023-12-22 01:24:35,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:35,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261264238] [2023-12-22 01:24:35,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:35,632 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 01:24:35,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:35,633 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 01:24:35,633 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 (14)] Waiting until timeout for monitored process [2023-12-22 01:24:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:35,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:35,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:35,777 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 01:24:35,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:35,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:35,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261264238] [2023-12-22 01:24:35,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261264238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:35,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:35,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:24:35,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157001568] [2023-12-22 01:24:35,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:35,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:35,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:35,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:35,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:35,779 INFO L87 Difference]: Start difference. First operand 11473 states and 17041 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 01:24:35,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:35,867 INFO L93 Difference]: Finished difference Result 18410 states and 27337 transitions. [2023-12-22 01:24:35,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:35,868 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 01:24:35,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:35,881 INFO L225 Difference]: With dead ends: 18410 [2023-12-22 01:24:35,881 INFO L226 Difference]: Without dead ends: 8488 [2023-12-22 01:24:35,891 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 01:24:35,892 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 01:24:35,893 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 01:24:35,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8488 states. [2023-12-22 01:24:35,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8488 to 8486. [2023-12-22 01:24:36,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8486 states, 8484 states have (on average 1.4981140971239981) internal successors, (12710), 8485 states have internal predecessors, (12710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8486 states to 8486 states and 12710 transitions. [2023-12-22 01:24:36,016 INFO L78 Accepts]: Start accepts. Automaton has 8486 states and 12710 transitions. Word has length 86 [2023-12-22 01:24:36,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:36,016 INFO L495 AbstractCegarLoop]: Abstraction has 8486 states and 12710 transitions. [2023-12-22 01:24:36,016 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 01:24:36,017 INFO L276 IsEmpty]: Start isEmpty. Operand 8486 states and 12710 transitions. [2023-12-22 01:24:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 01:24:36,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:36,019 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 01:24:36,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-22 01:24:36,221 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 01:24:36,222 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:36,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:36,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2051734284, now seen corresponding path program 1 times [2023-12-22 01:24:36,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:36,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161394199] [2023-12-22 01:24:36,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:36,223 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 01:24:36,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:36,225 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 01:24:36,225 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 01:24:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:36,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:24:36,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:37,363 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 01:24:37,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:37,741 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 01:24:37,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:37,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161394199] [2023-12-22 01:24:37,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161394199] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:37,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:37,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:24:37,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539226512] [2023-12-22 01:24:37,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:37,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:24:37,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:37,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:24:37,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:24:37,743 INFO L87 Difference]: Start difference. First operand 8486 states and 12710 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 01:24:39,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:39,938 INFO L93 Difference]: Finished difference Result 26976 states and 39547 transitions. [2023-12-22 01:24:39,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:24:39,939 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 01:24:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:39,965 INFO L225 Difference]: With dead ends: 26976 [2023-12-22 01:24:39,965 INFO L226 Difference]: Without dead ends: 20062 [2023-12-22 01:24:39,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 01:24:39,974 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 3760 mSDsluCounter, 12656 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3760 SdHoareTripleChecker+Valid, 14246 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:39,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3760 Valid, 14246 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 01:24:39,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20062 states. [2023-12-22 01:24:40,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20062 to 15398. [2023-12-22 01:24:40,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15398 states, 15396 states have (on average 1.4802546115874253) internal successors, (22790), 15397 states have internal predecessors, (22790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15398 states to 15398 states and 22790 transitions. [2023-12-22 01:24:40,310 INFO L78 Accepts]: Start accepts. Automaton has 15398 states and 22790 transitions. Word has length 88 [2023-12-22 01:24:40,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:40,310 INFO L495 AbstractCegarLoop]: Abstraction has 15398 states and 22790 transitions. [2023-12-22 01:24:40,310 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 01:24:40,310 INFO L276 IsEmpty]: Start isEmpty. Operand 15398 states and 22790 transitions. [2023-12-22 01:24:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-22 01:24:40,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:40,312 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 01:24:40,317 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 01:24:40,515 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 01:24:40,515 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:40,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:40,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1066419112, now seen corresponding path program 1 times [2023-12-22 01:24:40,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:40,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198261875] [2023-12-22 01:24:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:40,516 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 01:24:40,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:40,517 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 01:24:40,518 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 01:24:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:40,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:40,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:40,624 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 01:24:40,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:40,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:40,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198261875] [2023-12-22 01:24:40,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198261875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:40,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:40,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:24:40,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774014140] [2023-12-22 01:24:40,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:40,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:40,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:40,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:40,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:40,625 INFO L87 Difference]: Start difference. First operand 15398 states and 22790 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 01:24:40,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:40,741 INFO L93 Difference]: Finished difference Result 22314 states and 32920 transitions. [2023-12-22 01:24:40,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:40,742 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 01:24:40,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:40,753 INFO L225 Difference]: With dead ends: 22314 [2023-12-22 01:24:40,753 INFO L226 Difference]: Without dead ends: 8488 [2023-12-22 01:24:40,765 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 01:24:40,766 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 01:24:40,766 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 01:24:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8488 states. [2023-12-22 01:24:40,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8488 to 8486. [2023-12-22 01:24:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8486 states, 8484 states have (on average 1.4811409712399812) internal successors, (12566), 8485 states have internal predecessors, (12566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8486 states to 8486 states and 12566 transitions. [2023-12-22 01:24:40,988 INFO L78 Accepts]: Start accepts. Automaton has 8486 states and 12566 transitions. Word has length 90 [2023-12-22 01:24:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:40,988 INFO L495 AbstractCegarLoop]: Abstraction has 8486 states and 12566 transitions. [2023-12-22 01:24:40,988 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 01:24:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 8486 states and 12566 transitions. [2023-12-22 01:24:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 01:24:40,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:40,990 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 01:24:40,995 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 01:24:41,192 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 01:24:41,193 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:41,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:41,193 INFO L85 PathProgramCache]: Analyzing trace with hash -777056315, now seen corresponding path program 1 times [2023-12-22 01:24:41,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:41,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074925513] [2023-12-22 01:24:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:41,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:41,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:41,195 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 01:24:41,196 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 01:24:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:41,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:24:41,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:42,000 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 01:24:42,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:42,290 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 01:24:42,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:42,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074925513] [2023-12-22 01:24:42,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074925513] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:42,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:42,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:24:42,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144977430] [2023-12-22 01:24:42,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:42,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:24:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:42,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:24:42,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:24:42,292 INFO L87 Difference]: Start difference. First operand 8486 states and 12566 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 01:24:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:43,266 INFO L93 Difference]: Finished difference Result 15604 states and 22807 transitions. [2023-12-22 01:24:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 01:24:43,267 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 01:24:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:43,277 INFO L225 Difference]: With dead ends: 15604 [2023-12-22 01:24:43,277 INFO L226 Difference]: Without dead ends: 8690 [2023-12-22 01:24:43,284 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 01:24:43,284 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 6126 mSDsluCounter, 13584 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6126 SdHoareTripleChecker+Valid, 15094 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:43,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6126 Valid, 15094 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 01:24:43,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2023-12-22 01:24:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 8496. [2023-12-22 01:24:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8494 states have (on average 1.4808099835177773) internal successors, (12578), 8495 states have internal predecessors, (12578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:43,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 12578 transitions. [2023-12-22 01:24:43,459 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 12578 transitions. Word has length 91 [2023-12-22 01:24:43,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:43,460 INFO L495 AbstractCegarLoop]: Abstraction has 8496 states and 12578 transitions. [2023-12-22 01:24:43,460 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 01:24:43,460 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 12578 transitions. [2023-12-22 01:24:43,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 01:24:43,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:43,461 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 01:24:43,467 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 01:24:43,661 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 01:24:43,662 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:43,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:43,662 INFO L85 PathProgramCache]: Analyzing trace with hash -697975955, now seen corresponding path program 1 times [2023-12-22 01:24:43,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:43,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416661258] [2023-12-22 01:24:43,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:43,663 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 01:24:43,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:43,664 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 01:24:43,676 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 01:24:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:43,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:43,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:43,796 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 01:24:43,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:43,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416661258] [2023-12-22 01:24:43,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416661258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:43,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:43,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:24:43,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62782134] [2023-12-22 01:24:43,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:43,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:43,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:43,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:43,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:43,800 INFO L87 Difference]: Start difference. First operand 8496 states and 12578 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 01:24:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:43,868 INFO L93 Difference]: Finished difference Result 11956 states and 17596 transitions. [2023-12-22 01:24:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:43,868 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 01:24:43,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:43,873 INFO L225 Difference]: With dead ends: 11956 [2023-12-22 01:24:43,874 INFO L226 Difference]: Without dead ends: 5042 [2023-12-22 01:24:43,879 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 01:24:43,884 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 01:24:43,885 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 01:24:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2023-12-22 01:24:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 5040. [2023-12-22 01:24:43,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5040 states, 5038 states have (on average 1.4914648670107185) internal successors, (7514), 5039 states have internal predecessors, (7514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:43,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5040 states to 5040 states and 7514 transitions. [2023-12-22 01:24:43,959 INFO L78 Accepts]: Start accepts. Automaton has 5040 states and 7514 transitions. Word has length 93 [2023-12-22 01:24:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:43,960 INFO L495 AbstractCegarLoop]: Abstraction has 5040 states and 7514 transitions. [2023-12-22 01:24:43,960 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 01:24:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5040 states and 7514 transitions. [2023-12-22 01:24:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-22 01:24:43,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:43,961 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 01:24:43,969 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 (18)] Ended with exit code 0 [2023-12-22 01:24:44,164 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 01:24:44,165 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:44,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:44,165 INFO L85 PathProgramCache]: Analyzing trace with hash 92688288, now seen corresponding path program 1 times [2023-12-22 01:24:44,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:44,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646137592] [2023-12-22 01:24:44,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:44,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:44,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:44,167 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 01:24:44,168 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 01:24:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:44,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:24:44,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:45,027 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 01:24:45,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:45,377 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 01:24:45,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:45,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646137592] [2023-12-22 01:24:45,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646137592] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:45,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:45,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:24:45,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187570904] [2023-12-22 01:24:45,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:45,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:24:45,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:45,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:24:45,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:24:45,379 INFO L87 Difference]: Start difference. First operand 5040 states and 7514 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 01:24:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:46,951 INFO L93 Difference]: Finished difference Result 14504 states and 20958 transitions. [2023-12-22 01:24:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:24:46,952 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 01:24:46,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:46,961 INFO L225 Difference]: With dead ends: 14504 [2023-12-22 01:24:46,961 INFO L226 Difference]: Without dead ends: 11046 [2023-12-22 01:24:46,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 172 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 01:24:46,965 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 5099 mSDsluCounter, 14069 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 15675 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:46,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 15675 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:24:46,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11046 states. [2023-12-22 01:24:47,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11046 to 8784. [2023-12-22 01:24:47,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8784 states, 8782 states have (on average 1.4486449555909815) internal successors, (12722), 8783 states have internal predecessors, (12722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8784 states to 8784 states and 12722 transitions. [2023-12-22 01:24:47,109 INFO L78 Accepts]: Start accepts. Automaton has 8784 states and 12722 transitions. Word has length 94 [2023-12-22 01:24:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:47,109 INFO L495 AbstractCegarLoop]: Abstraction has 8784 states and 12722 transitions. [2023-12-22 01:24:47,109 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 01:24:47,109 INFO L276 IsEmpty]: Start isEmpty. Operand 8784 states and 12722 transitions. [2023-12-22 01:24:47,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-22 01:24:47,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:47,110 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 01:24:47,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 01:24:47,313 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 01:24:47,314 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:47,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:47,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1057816364, now seen corresponding path program 1 times [2023-12-22 01:24:47,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169729415] [2023-12-22 01:24:47,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:47,315 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 01:24:47,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:47,316 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 01:24:47,318 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 01:24:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:47,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:47,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:47,441 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 01:24:47,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:47,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:47,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169729415] [2023-12-22 01:24:47,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169729415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:47,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:47,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:24:47,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404752090] [2023-12-22 01:24:47,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:47,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:47,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:47,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:47,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:47,444 INFO L87 Difference]: Start difference. First operand 8784 states and 12722 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 01:24:47,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:47,543 INFO L93 Difference]: Finished difference Result 12388 states and 17812 transitions. [2023-12-22 01:24:47,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:47,543 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 01:24:47,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:47,547 INFO L225 Difference]: With dead ends: 12388 [2023-12-22 01:24:47,547 INFO L226 Difference]: Without dead ends: 5186 [2023-12-22 01:24:47,552 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 01:24:47,552 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 01:24:47,552 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 01:24:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2023-12-22 01:24:47,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5184. [2023-12-22 01:24:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 5182 states have (on average 1.4639135468930915) internal successors, (7586), 5183 states have internal predecessors, (7586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7586 transitions. [2023-12-22 01:24:47,624 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7586 transitions. Word has length 96 [2023-12-22 01:24:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:47,624 INFO L495 AbstractCegarLoop]: Abstraction has 5184 states and 7586 transitions. [2023-12-22 01:24:47,624 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 01:24:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7586 transitions. [2023-12-22 01:24:47,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-22 01:24:47,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:47,625 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 01:24:47,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 01:24:47,828 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 01:24:47,828 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:47,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:47,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1862481433, now seen corresponding path program 1 times [2023-12-22 01:24:47,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:47,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332317803] [2023-12-22 01:24:47,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:47,829 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 01:24:47,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:47,830 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 01:24:47,830 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 (21)] Waiting until timeout for monitored process [2023-12-22 01:24:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:47,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:24:47,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:48,550 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 01:24:48,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:48,860 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 01:24:48,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:48,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332317803] [2023-12-22 01:24:48,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332317803] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:48,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:48,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:24:48,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815656341] [2023-12-22 01:24:48,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:48,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:24:48,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:48,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:24:48,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:24:48,861 INFO L87 Difference]: Start difference. First operand 5184 states and 7586 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 01:24:50,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:50,272 INFO L93 Difference]: Finished difference Result 14648 states and 20694 transitions. [2023-12-22 01:24:50,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:24:50,272 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 01:24:50,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:50,280 INFO L225 Difference]: With dead ends: 14648 [2023-12-22 01:24:50,280 INFO L226 Difference]: Without dead ends: 11046 [2023-12-22 01:24:50,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:24:50,283 INFO L413 NwaCegarLoop]: 1588 mSDtfsCounter, 4909 mSDsluCounter, 15487 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4909 SdHoareTripleChecker+Valid, 17075 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:50,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4909 Valid, 17075 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:24:50,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11046 states. [2023-12-22 01:24:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11046 to 9072. [2023-12-22 01:24:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 9070 states have (on average 1.4185226019845645) internal successors, (12866), 9071 states have internal predecessors, (12866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:50,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 12866 transitions. [2023-12-22 01:24:50,492 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 12866 transitions. Word has length 97 [2023-12-22 01:24:50,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:50,492 INFO L495 AbstractCegarLoop]: Abstraction has 9072 states and 12866 transitions. [2023-12-22 01:24:50,492 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 01:24:50,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 12866 transitions. [2023-12-22 01:24:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-22 01:24:50,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:50,493 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 01:24:50,499 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 01:24:50,696 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 01:24:50,697 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:50,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash 118906969, now seen corresponding path program 1 times [2023-12-22 01:24:50,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:50,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394938183] [2023-12-22 01:24:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:50,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:50,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:50,699 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 01:24:50,699 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 01:24:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:50,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:50,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:50,815 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 01:24:50,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:50,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:50,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394938183] [2023-12-22 01:24:50,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394938183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:50,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:50,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:24:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123138793] [2023-12-22 01:24:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:50,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:50,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:50,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:50,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:50,816 INFO L87 Difference]: Start difference. First operand 9072 states and 12866 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 01:24:50,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:50,899 INFO L93 Difference]: Finished difference Result 12820 states and 18028 transitions. [2023-12-22 01:24:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:50,899 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 01:24:50,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:50,904 INFO L225 Difference]: With dead ends: 12820 [2023-12-22 01:24:50,904 INFO L226 Difference]: Without dead ends: 5330 [2023-12-22 01:24:50,907 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 01:24:50,908 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 01:24:50,908 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 01:24:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5330 states. [2023-12-22 01:24:50,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5330 to 5328. [2023-12-22 01:24:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5326 states have (on average 1.4378520465640254) internal successors, (7658), 5327 states have internal predecessors, (7658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:50,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 7658 transitions. [2023-12-22 01:24:50,989 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 7658 transitions. Word has length 99 [2023-12-22 01:24:50,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:50,989 INFO L495 AbstractCegarLoop]: Abstraction has 5328 states and 7658 transitions. [2023-12-22 01:24:50,989 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 01:24:50,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 7658 transitions. [2023-12-22 01:24:50,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 01:24:50,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:50,990 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 01:24:50,995 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 01:24:51,193 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 01:24:51,193 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:51,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:51,194 INFO L85 PathProgramCache]: Analyzing trace with hash -939456972, now seen corresponding path program 1 times [2023-12-22 01:24:51,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:51,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290744141] [2023-12-22 01:24:51,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:51,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:51,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:51,195 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 01:24:51,199 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 01:24:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:51,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:24:51,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:51,965 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 01:24:51,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:52,275 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 01:24:52,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:52,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290744141] [2023-12-22 01:24:52,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290744141] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:52,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:52,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:24:52,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217908170] [2023-12-22 01:24:52,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:52,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:24:52,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:52,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:24:52,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:24:52,277 INFO L87 Difference]: Start difference. First operand 5328 states and 7658 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 01:24:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:53,551 INFO L93 Difference]: Finished difference Result 14792 states and 20430 transitions. [2023-12-22 01:24:53,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:24:53,552 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 01:24:53,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:53,562 INFO L225 Difference]: With dead ends: 14792 [2023-12-22 01:24:53,562 INFO L226 Difference]: Without dead ends: 11046 [2023-12-22 01:24:53,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:24:53,567 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 3479 mSDsluCounter, 12399 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3479 SdHoareTripleChecker+Valid, 13969 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:53,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3479 Valid, 13969 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:24:53,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11046 states. [2023-12-22 01:24:53,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11046 to 9360. [2023-12-22 01:24:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9360 states, 9358 states have (on average 1.3902543278478308) internal successors, (13010), 9359 states have internal predecessors, (13010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:53,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9360 states to 9360 states and 13010 transitions. [2023-12-22 01:24:53,818 INFO L78 Accepts]: Start accepts. Automaton has 9360 states and 13010 transitions. Word has length 100 [2023-12-22 01:24:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:53,818 INFO L495 AbstractCegarLoop]: Abstraction has 9360 states and 13010 transitions. [2023-12-22 01:24:53,818 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 01:24:53,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9360 states and 13010 transitions. [2023-12-22 01:24:53,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-22 01:24:53,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:53,820 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 01:24:53,825 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 01:24:54,022 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 01:24:54,023 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:54,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:54,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1166857216, now seen corresponding path program 1 times [2023-12-22 01:24:54,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:54,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698039842] [2023-12-22 01:24:54,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:54,024 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 01:24:54,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:54,025 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 01:24:54,026 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 01:24:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:54,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:54,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:54,156 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 01:24:54,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:54,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:54,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698039842] [2023-12-22 01:24:54,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698039842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:54,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:54,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:24:54,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717351167] [2023-12-22 01:24:54,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:54,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:54,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:54,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:54,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:54,158 INFO L87 Difference]: Start difference. First operand 9360 states and 13010 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 01:24:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:54,250 INFO L93 Difference]: Finished difference Result 13252 states and 18220 transitions. [2023-12-22 01:24:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:24:54,251 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 01:24:54,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:54,255 INFO L225 Difference]: With dead ends: 13252 [2023-12-22 01:24:54,255 INFO L226 Difference]: Without dead ends: 5474 [2023-12-22 01:24:54,259 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 01:24:54,259 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 01:24:54,259 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 01:24:54,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2023-12-22 01:24:54,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5472. [2023-12-22 01:24:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5472 states, 5470 states have (on average 1.4087751371115174) internal successors, (7706), 5471 states have internal predecessors, (7706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5472 states to 5472 states and 7706 transitions. [2023-12-22 01:24:54,352 INFO L78 Accepts]: Start accepts. Automaton has 5472 states and 7706 transitions. Word has length 102 [2023-12-22 01:24:54,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:54,352 INFO L495 AbstractCegarLoop]: Abstraction has 5472 states and 7706 transitions. [2023-12-22 01:24:54,352 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 01:24:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states and 7706 transitions. [2023-12-22 01:24:54,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-22 01:24:54,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:54,353 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 01:24:54,358 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 (24)] Forceful destruction successful, exit code 0 [2023-12-22 01:24:54,556 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 01:24:54,556 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:54,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1254707603, now seen corresponding path program 1 times [2023-12-22 01:24:54,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:54,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926987406] [2023-12-22 01:24:54,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:54,557 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 01:24:54,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:54,558 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 01:24:54,558 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 01:24:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:54,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:24:54,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:55,491 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 01:24:55,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:55,897 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 01:24:55,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:55,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926987406] [2023-12-22 01:24:55,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926987406] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:55,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:55,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:24:55,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295434781] [2023-12-22 01:24:55,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:55,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:24:55,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:55,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:24:55,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:24:55,899 INFO L87 Difference]: Start difference. First operand 5472 states and 7706 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 01:24:57,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:57,295 INFO L93 Difference]: Finished difference Result 12712 states and 17198 transitions. [2023-12-22 01:24:57,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 01:24:57,295 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 01:24:57,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:57,303 INFO L225 Difference]: With dead ends: 12712 [2023-12-22 01:24:57,304 INFO L226 Difference]: Without dead ends: 8822 [2023-12-22 01:24:57,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 01:24:57,307 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 5109 mSDsluCounter, 10780 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 12332 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:57,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5109 Valid, 12332 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:24:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8822 states. [2023-12-22 01:24:57,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8822 to 8256. [2023-12-22 01:24:57,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8256 states, 8254 states have (on average 1.365883208141507) internal successors, (11274), 8255 states have internal predecessors, (11274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:57,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8256 states to 8256 states and 11274 transitions. [2023-12-22 01:24:57,475 INFO L78 Accepts]: Start accepts. Automaton has 8256 states and 11274 transitions. Word has length 103 [2023-12-22 01:24:57,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:57,475 INFO L495 AbstractCegarLoop]: Abstraction has 8256 states and 11274 transitions. [2023-12-22 01:24:57,475 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 01:24:57,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8256 states and 11274 transitions. [2023-12-22 01:24:57,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-22 01:24:57,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:57,476 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 01:24:57,482 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 01:24:57,678 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 01:24:57,679 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:57,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:57,679 INFO L85 PathProgramCache]: Analyzing trace with hash 192635717, now seen corresponding path program 1 times [2023-12-22 01:24:57,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:57,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973789826] [2023-12-22 01:24:57,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:57,680 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 01:24:57,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:57,680 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 01:24:57,682 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 01:24:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:57,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:24:57,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:57,910 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 01:24:57,910 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:58,059 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 01:24:58,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:58,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973789826] [2023-12-22 01:24:58,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973789826] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:58,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:58,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:24:58,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710046289] [2023-12-22 01:24:58,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:58,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 01:24:58,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:58,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 01:24:58,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 01:24:58,078 INFO L87 Difference]: Start difference. First operand 8256 states and 11274 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 01:24:58,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:58,548 INFO L93 Difference]: Finished difference Result 27610 states and 36135 transitions. [2023-12-22 01:24:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 01:24:58,548 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 01:24:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:58,566 INFO L225 Difference]: With dead ends: 27610 [2023-12-22 01:24:58,566 INFO L226 Difference]: Without dead ends: 20936 [2023-12-22 01:24:58,569 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 01:24:58,569 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 3040 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:58,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 3332 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:24:58,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20936 states. [2023-12-22 01:24:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20936 to 20852. [2023-12-22 01:24:59,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20852 states, 20850 states have (on average 1.2675299760191847) internal successors, (26428), 20851 states have internal predecessors, (26428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20852 states to 20852 states and 26428 transitions. [2023-12-22 01:24:59,127 INFO L78 Accepts]: Start accepts. Automaton has 20852 states and 26428 transitions. Word has length 105 [2023-12-22 01:24:59,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:59,128 INFO L495 AbstractCegarLoop]: Abstraction has 20852 states and 26428 transitions. [2023-12-22 01:24:59,128 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 01:24:59,128 INFO L276 IsEmpty]: Start isEmpty. Operand 20852 states and 26428 transitions. [2023-12-22 01:24:59,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 01:24:59,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:59,130 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, 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] [2023-12-22 01:24:59,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 01:24:59,334 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 01:24:59,334 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:59,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash -783860631, now seen corresponding path program 1 times [2023-12-22 01:24:59,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:59,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699579534] [2023-12-22 01:24:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:59,335 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 01:24:59,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:59,336 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 01:24:59,337 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 01:24:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:59,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:24:59,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:24:59,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:25:00,426 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:25:00,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:25:00,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699579534] [2023-12-22 01:25:00,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699579534] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:25:00,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:25:00,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:25:00,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332094193] [2023-12-22 01:25:00,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:25:00,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:25:00,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:25:00,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:25:00,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:25:00,428 INFO L87 Difference]: Start difference. First operand 20852 states and 26428 transitions. Second operand has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:43,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:43,421 INFO L93 Difference]: Finished difference Result 27686 states and 37790 transitions. [2023-12-22 01:26:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 01:26:43,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 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 137 [2023-12-22 01:26:43,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:43,449 INFO L225 Difference]: With dead ends: 27686 [2023-12-22 01:26:43,449 INFO L226 Difference]: Without dead ends: 26182 [2023-12-22 01:26:43,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 01:26:43,457 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 5214 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 9153 mSolverCounterSat, 2977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 12130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2977 IncrementalHoareTripleChecker+Valid, 9153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:43,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5214 Valid, 833 Invalid, 12130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2977 Valid, 9153 Invalid, 0 Unknown, 0 Unchecked, 101.9s Time] [2023-12-22 01:26:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26182 states. [2023-12-22 01:26:44,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26182 to 25358. [2023-12-22 01:26:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25358 states, 25356 states have (on average 1.2585581321975075) internal successors, (31912), 25357 states have internal predecessors, (31912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25358 states to 25358 states and 31912 transitions. [2023-12-22 01:26:44,111 INFO L78 Accepts]: Start accepts. Automaton has 25358 states and 31912 transitions. Word has length 137 [2023-12-22 01:26:44,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:44,111 INFO L495 AbstractCegarLoop]: Abstraction has 25358 states and 31912 transitions. [2023-12-22 01:26:44,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:44,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25358 states and 31912 transitions. [2023-12-22 01:26:44,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 01:26:44,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:44,117 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 01:26:44,120 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 01:26:44,318 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 01:26:44,318 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:44,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:44,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1558706169, now seen corresponding path program 1 times [2023-12-22 01:26:44,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:44,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521967202] [2023-12-22 01:26:44,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:44,319 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 01:26:44,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:44,320 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 01:26:44,321 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 01:26:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:44,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:26:44,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:45,735 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 01:26:45,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:46,340 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 01:26:46,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:46,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521967202] [2023-12-22 01:26:46,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521967202] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:46,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:46,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:26:46,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207393404] [2023-12-22 01:26:46,341 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:46,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:46,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:46,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:46,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:46,342 INFO L87 Difference]: Start difference. First operand 25358 states and 31912 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 01:26:48,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:48,714 INFO L93 Difference]: Finished difference Result 38398 states and 48216 transitions. [2023-12-22 01:26:48,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 01:26:48,715 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 01:26:48,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:48,740 INFO L225 Difference]: With dead ends: 38398 [2023-12-22 01:26:48,740 INFO L226 Difference]: Without dead ends: 25588 [2023-12-22 01:26:48,747 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 01:26:48,747 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 15257 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15257 SdHoareTripleChecker+Valid, 8082 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:48,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15257 Valid, 8082 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:26:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25588 states. [2023-12-22 01:26:49,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25588 to 25358. [2023-12-22 01:26:49,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25358 states, 25356 states have (on average 1.2497239312194353) internal successors, (31688), 25357 states have internal predecessors, (31688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:49,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25358 states to 25358 states and 31688 transitions. [2023-12-22 01:26:49,525 INFO L78 Accepts]: Start accepts. Automaton has 25358 states and 31688 transitions. Word has length 158 [2023-12-22 01:26:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:49,525 INFO L495 AbstractCegarLoop]: Abstraction has 25358 states and 31688 transitions. [2023-12-22 01:26:49,526 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 01:26:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 25358 states and 31688 transitions. [2023-12-22 01:26:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:26:49,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:49,531 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 01:26:49,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-22 01:26:49,731 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 01:26:49,731 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:49,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -918033510, now seen corresponding path program 1 times [2023-12-22 01:26:49,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:49,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302078462] [2023-12-22 01:26:49,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:49,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:49,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:49,733 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 01:26:49,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 01:26:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:49,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:26:49,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:51,319 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 01:26:51,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:51,861 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 01:26:51,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:51,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302078462] [2023-12-22 01:26:51,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302078462] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:51,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:51,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:26:51,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936713795] [2023-12-22 01:26:51,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:51,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:51,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:51,863 INFO L87 Difference]: Start difference. First operand 25358 states and 31688 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 01:26:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:54,207 INFO L93 Difference]: Finished difference Result 42498 states and 52875 transitions. [2023-12-22 01:26:54,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 01:26:54,207 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 01:26:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:54,237 INFO L225 Difference]: With dead ends: 42498 [2023-12-22 01:26:54,238 INFO L226 Difference]: Without dead ends: 25360 [2023-12-22 01:26:54,248 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 01:26:54,248 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 19614 mSDsluCounter, 7954 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19614 SdHoareTripleChecker+Valid, 9500 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:54,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19614 Valid, 9500 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:26:54,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25360 states. [2023-12-22 01:26:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25360 to 25358. [2023-12-22 01:26:55,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25358 states, 25356 states have (on average 1.2415207445969396) internal successors, (31480), 25357 states have internal predecessors, (31480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25358 states to 25358 states and 31480 transitions. [2023-12-22 01:26:55,094 INFO L78 Accepts]: Start accepts. Automaton has 25358 states and 31480 transitions. Word has length 159 [2023-12-22 01:26:55,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:55,094 INFO L495 AbstractCegarLoop]: Abstraction has 25358 states and 31480 transitions. [2023-12-22 01:26:55,094 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 01:26:55,094 INFO L276 IsEmpty]: Start isEmpty. Operand 25358 states and 31480 transitions. [2023-12-22 01:26:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-22 01:26:55,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:55,100 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 01:26:55,105 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 01:26:55,300 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 01:26:55,300 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:55,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash 488318889, now seen corresponding path program 1 times [2023-12-22 01:26:55,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:55,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929372873] [2023-12-22 01:26:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:55,301 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 01:26:55,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:55,302 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 01:26:55,303 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 01:26:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:55,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:26:55,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:57,026 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 01:26:57,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:57,452 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 01:26:57,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:57,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929372873] [2023-12-22 01:26:57,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929372873] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:57,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:57,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:26:57,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207310721] [2023-12-22 01:26:57,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:57,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:26:57,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:57,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:26:57,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:26:57,454 INFO L87 Difference]: Start difference. First operand 25358 states and 31480 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 01:27:04,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:04,178 INFO L93 Difference]: Finished difference Result 93746 states and 116549 transitions. [2023-12-22 01:27:04,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 01:27:04,178 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 01:27:04,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:04,270 INFO L225 Difference]: With dead ends: 93746 [2023-12-22 01:27:04,270 INFO L226 Difference]: Without dead ends: 85520 [2023-12-22 01:27:04,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 01:27:04,285 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 18357 mSDsluCounter, 9900 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18357 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:04,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18357 Valid, 11446 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-22 01:27:04,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85520 states. [2023-12-22 01:27:05,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85520 to 25358. [2023-12-22 01:27:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25358 states, 25356 states have (on average 1.2371036441079035) internal successors, (31368), 25357 states have internal predecessors, (31368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:05,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25358 states to 25358 states and 31368 transitions. [2023-12-22 01:27:05,676 INFO L78 Accepts]: Start accepts. Automaton has 25358 states and 31368 transitions. Word has length 160 [2023-12-22 01:27:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:05,676 INFO L495 AbstractCegarLoop]: Abstraction has 25358 states and 31368 transitions. [2023-12-22 01:27:05,676 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 01:27:05,676 INFO L276 IsEmpty]: Start isEmpty. Operand 25358 states and 31368 transitions. [2023-12-22 01:27:05,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-22 01:27:05,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:05,681 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 01:27:05,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-22 01:27:05,881 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 01:27:05,882 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:05,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1848668426, now seen corresponding path program 1 times [2023-12-22 01:27:05,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:05,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961895749] [2023-12-22 01:27:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:05,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:05,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:05,884 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 01:27:05,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 01:27:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:05,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:27:06,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:07,626 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 01:27:07,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:08,181 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 01:27:08,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:08,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961895749] [2023-12-22 01:27:08,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961895749] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:08,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:08,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:27:08,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381736448] [2023-12-22 01:27:08,182 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:08,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:08,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:08,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:08,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:08,183 INFO L87 Difference]: Start difference. First operand 25358 states and 31368 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 01:27:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:11,541 INFO L93 Difference]: Finished difference Result 35510 states and 43852 transitions. [2023-12-22 01:27:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:27:11,542 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 01:27:11,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:11,574 INFO L225 Difference]: With dead ends: 35510 [2023-12-22 01:27:11,574 INFO L226 Difference]: Without dead ends: 27572 [2023-12-22 01:27:11,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:27:11,585 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 15482 mSDsluCounter, 8162 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15482 SdHoareTripleChecker+Valid, 9708 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:11,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15482 Valid, 9708 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 01:27:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27572 states. [2023-12-22 01:27:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27572 to 25358. [2023-12-22 01:27:12,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25358 states, 25356 states have (on average 1.2326865436188674) internal successors, (31256), 25357 states have internal predecessors, (31256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:12,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25358 states to 25358 states and 31256 transitions. [2023-12-22 01:27:12,661 INFO L78 Accepts]: Start accepts. Automaton has 25358 states and 31256 transitions. Word has length 161 [2023-12-22 01:27:12,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:12,661 INFO L495 AbstractCegarLoop]: Abstraction has 25358 states and 31256 transitions. [2023-12-22 01:27:12,661 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 01:27:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 25358 states and 31256 transitions. [2023-12-22 01:27:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 01:27:12,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:12,666 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 01:27:12,670 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 01:27:12,866 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 01:27:12,867 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:12,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:12,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1040867495, now seen corresponding path program 1 times [2023-12-22 01:27:12,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:12,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517268102] [2023-12-22 01:27:12,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:12,868 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 01:27:12,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:12,869 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 01:27:12,870 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 01:27:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:12,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:27:12,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:14,559 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 01:27:14,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:15,124 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 01:27:15,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:15,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517268102] [2023-12-22 01:27:15,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517268102] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:15,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:15,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:27:15,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497267043] [2023-12-22 01:27:15,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:15,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:15,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:15,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:15,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:15,126 INFO L87 Difference]: Start difference. First operand 25358 states and 31256 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 01:27:17,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:17,724 INFO L93 Difference]: Finished difference Result 34214 states and 42044 transitions. [2023-12-22 01:27:17,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:27:17,725 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 01:27:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:17,756 INFO L225 Difference]: With dead ends: 34214 [2023-12-22 01:27:17,756 INFO L226 Difference]: Without dead ends: 26564 [2023-12-22 01:27:17,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:27:17,767 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 21480 mSDsluCounter, 6396 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21480 SdHoareTripleChecker+Valid, 7942 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:17,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21480 Valid, 7942 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:27:17,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26564 states. [2023-12-22 01:27:18,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26564 to 25358. [2023-12-22 01:27:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25358 states, 25356 states have (on average 1.228269443129831) internal successors, (31144), 25357 states have internal predecessors, (31144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:18,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25358 states to 25358 states and 31144 transitions. [2023-12-22 01:27:18,895 INFO L78 Accepts]: Start accepts. Automaton has 25358 states and 31144 transitions. Word has length 162 [2023-12-22 01:27:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:18,896 INFO L495 AbstractCegarLoop]: Abstraction has 25358 states and 31144 transitions. [2023-12-22 01:27:18,896 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 01:27:18,896 INFO L276 IsEmpty]: Start isEmpty. Operand 25358 states and 31144 transitions. [2023-12-22 01:27:18,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:18,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:18,902 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 01:27:18,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-22 01:27:19,106 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 01:27:19,106 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:19,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1947979386, now seen corresponding path program 1 times [2023-12-22 01:27:19,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:19,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909199062] [2023-12-22 01:27:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:19,107 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 01:27:19,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:19,109 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 01:27:19,109 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 01:27:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:19,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:19,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:21,172 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 01:27:21,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:21,983 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 01:27:21,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:21,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909199062] [2023-12-22 01:27:21,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909199062] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:21,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:21,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:21,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880869719] [2023-12-22 01:27:21,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:21,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:21,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:21,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:21,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:21,985 INFO L87 Difference]: Start difference. First operand 25358 states and 31144 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 01:27:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:28,955 INFO L93 Difference]: Finished difference Result 38320 states and 46517 transitions. [2023-12-22 01:27:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 01:27:28,956 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 01:27:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:28,988 INFO L225 Difference]: With dead ends: 38320 [2023-12-22 01:27:28,988 INFO L226 Difference]: Without dead ends: 29406 [2023-12-22 01:27:28,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 01:27:28,996 INFO L413 NwaCegarLoop]: 1641 mSDtfsCounter, 4059 mSDsluCounter, 22255 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4059 SdHoareTripleChecker+Valid, 23896 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:28,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4059 Valid, 23896 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 01:27:29,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29406 states. [2023-12-22 01:27:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29406 to 18070. [2023-12-22 01:27:29,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18070 states, 18068 states have (on average 1.237547044498561) internal successors, (22360), 18069 states have internal predecessors, (22360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18070 states to 18070 states and 22360 transitions. [2023-12-22 01:27:29,836 INFO L78 Accepts]: Start accepts. Automaton has 18070 states and 22360 transitions. Word has length 163 [2023-12-22 01:27:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:29,836 INFO L495 AbstractCegarLoop]: Abstraction has 18070 states and 22360 transitions. [2023-12-22 01:27:29,836 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 01:27:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 18070 states and 22360 transitions. [2023-12-22 01:27:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:29,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:29,839 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 01:27:29,843 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 01:27:30,040 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 01:27:30,040 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:30,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:30,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1992282338, now seen corresponding path program 1 times [2023-12-22 01:27:30,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:30,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288247320] [2023-12-22 01:27:30,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:30,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:30,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:30,042 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 01:27:30,042 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 (34)] Waiting until timeout for monitored process [2023-12-22 01:27:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:30,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:30,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:31,818 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 01:27:31,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:32,548 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 01:27:32,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:32,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288247320] [2023-12-22 01:27:32,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288247320] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:32,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:32,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:32,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459382159] [2023-12-22 01:27:32,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:32,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:32,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:32,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:32,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:32,550 INFO L87 Difference]: Start difference. First operand 18070 states and 22360 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 01:27:38,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:38,405 INFO L93 Difference]: Finished difference Result 27556 states and 33699 transitions. [2023-12-22 01:27:38,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:27:38,405 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 01:27:38,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:38,433 INFO L225 Difference]: With dead ends: 27556 [2023-12-22 01:27:38,433 INFO L226 Difference]: Without dead ends: 24962 [2023-12-22 01:27:38,439 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 01:27:38,439 INFO L413 NwaCegarLoop]: 1655 mSDtfsCounter, 5310 mSDsluCounter, 20827 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5310 SdHoareTripleChecker+Valid, 22482 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:38,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5310 Valid, 22482 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 01:27:38,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24962 states. [2023-12-22 01:27:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24962 to 21842. [2023-12-22 01:27:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21842 states, 21840 states have (on average 1.2293956043956045) internal successors, (26850), 21841 states have internal predecessors, (26850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21842 states to 21842 states and 26850 transitions. [2023-12-22 01:27:39,410 INFO L78 Accepts]: Start accepts. Automaton has 21842 states and 26850 transitions. Word has length 163 [2023-12-22 01:27:39,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:39,411 INFO L495 AbstractCegarLoop]: Abstraction has 21842 states and 26850 transitions. [2023-12-22 01:27:39,411 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 01:27:39,411 INFO L276 IsEmpty]: Start isEmpty. Operand 21842 states and 26850 transitions. [2023-12-22 01:27:39,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:39,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:39,414 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 01:27:39,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-22 01:27:39,614 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 01:27:39,615 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:39,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:39,615 INFO L85 PathProgramCache]: Analyzing trace with hash -206400262, now seen corresponding path program 1 times [2023-12-22 01:27:39,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:39,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383170263] [2023-12-22 01:27:39,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:39,616 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 01:27:39,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:39,617 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 01:27:39,621 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 (35)] Waiting until timeout for monitored process [2023-12-22 01:27:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:39,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:39,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:41,250 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 01:27:41,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:41,879 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 01:27:41,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:41,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383170263] [2023-12-22 01:27:41,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383170263] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:41,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:41,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:41,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099641553] [2023-12-22 01:27:41,880 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:41,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:41,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:41,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:41,881 INFO L87 Difference]: Start difference. First operand 21842 states and 26850 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 01:27:49,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:49,046 INFO L93 Difference]: Finished difference Result 34709 states and 42211 transitions. [2023-12-22 01:27:49,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:27:49,047 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 01:27:49,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:49,081 INFO L225 Difference]: With dead ends: 34709 [2023-12-22 01:27:49,081 INFO L226 Difference]: Without dead ends: 31203 [2023-12-22 01:27:49,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:27:49,090 INFO L413 NwaCegarLoop]: 1669 mSDtfsCounter, 4037 mSDsluCounter, 21152 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4037 SdHoareTripleChecker+Valid, 22821 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:49,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4037 Valid, 22821 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 01:27:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31203 states. [2023-12-22 01:27:50,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31203 to 26573. [2023-12-22 01:27:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26573 states, 26571 states have (on average 1.2221594971961913) internal successors, (32474), 26572 states have internal predecessors, (32474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:50,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26573 states to 26573 states and 32474 transitions. [2023-12-22 01:27:50,488 INFO L78 Accepts]: Start accepts. Automaton has 26573 states and 32474 transitions. Word has length 163 [2023-12-22 01:27:50,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:50,488 INFO L495 AbstractCegarLoop]: Abstraction has 26573 states and 32474 transitions. [2023-12-22 01:27:50,488 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 01:27:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand 26573 states and 32474 transitions. [2023-12-22 01:27:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:27:50,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:50,493 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 01:27:50,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-22 01:27:50,694 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 01:27:50,694 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:50,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:50,694 INFO L85 PathProgramCache]: Analyzing trace with hash 291600542, now seen corresponding path program 1 times [2023-12-22 01:27:50,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:50,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754707865] [2023-12-22 01:27:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:50,695 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 01:27:50,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:50,696 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 01:27:50,697 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 01:27:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:50,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:27:50,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:52,325 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 01:27:52,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:52,948 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 01:27:52,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754707865] [2023-12-22 01:27:52,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754707865] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:52,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:52,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:27:52,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748882291] [2023-12-22 01:27:52,949 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:52,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:27:52,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:52,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:27:52,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:27:52,950 INFO L87 Difference]: Start difference. First operand 26573 states and 32474 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 01:27:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:58,191 INFO L93 Difference]: Finished difference Result 45601 states and 55460 transitions. [2023-12-22 01:27:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-22 01:27:58,191 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 01:27:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:58,235 INFO L225 Difference]: With dead ends: 45601 [2023-12-22 01:27:58,235 INFO L226 Difference]: Without dead ends: 40843 [2023-12-22 01:27:58,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2023-12-22 01:27:58,245 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 4990 mSDsluCounter, 21985 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4990 SdHoareTripleChecker+Valid, 23572 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:58,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4990 Valid, 23572 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 01:27:58,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40843 states. [2023-12-22 01:28:00,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40843 to 38115. [2023-12-22 01:28:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38115 states, 38113 states have (on average 1.2127358119276888) internal successors, (46221), 38114 states have internal predecessors, (46221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38115 states to 38115 states and 46221 transitions. [2023-12-22 01:28:00,432 INFO L78 Accepts]: Start accepts. Automaton has 38115 states and 46221 transitions. Word has length 163 [2023-12-22 01:28:00,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:00,433 INFO L495 AbstractCegarLoop]: Abstraction has 38115 states and 46221 transitions. [2023-12-22 01:28:00,433 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 01:28:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 38115 states and 46221 transitions. [2023-12-22 01:28:00,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:28:00,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:00,438 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 01:28:00,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:00,638 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 01:28:00,638 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:00,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:00,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1000129670, now seen corresponding path program 1 times [2023-12-22 01:28:00,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:00,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945190338] [2023-12-22 01:28:00,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:00,639 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 01:28:00,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:00,640 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 01:28:00,641 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 01:28:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:00,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:28:00,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:02,414 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 01:28:02,415 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:03,053 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 01:28:03,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945190338] [2023-12-22 01:28:03,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945190338] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:03,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:03,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:28:03,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133701934] [2023-12-22 01:28:03,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:03,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:28:03,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:03,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:28:03,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:28:03,055 INFO L87 Difference]: Start difference. First operand 38115 states and 46221 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 01:28:11,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:11,972 INFO L93 Difference]: Finished difference Result 65670 states and 79320 transitions. [2023-12-22 01:28:11,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:28:11,972 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 01:28:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:12,025 INFO L225 Difference]: With dead ends: 65670 [2023-12-22 01:28:12,025 INFO L226 Difference]: Without dead ends: 52418 [2023-12-22 01:28:12,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:28:12,033 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 3660 mSDsluCounter, 19590 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 21274 SdHoareTripleChecker+Invalid, 2418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:12,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 21274 Invalid, 2418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-22 01:28:12,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52418 states. [2023-12-22 01:28:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52418 to 45281. [2023-12-22 01:28:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45281 states, 45279 states have (on average 1.2035380640031803) internal successors, (54495), 45280 states have internal predecessors, (54495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:14,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45281 states to 45281 states and 54495 transitions. [2023-12-22 01:28:14,900 INFO L78 Accepts]: Start accepts. Automaton has 45281 states and 54495 transitions. Word has length 163 [2023-12-22 01:28:14,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:14,900 INFO L495 AbstractCegarLoop]: Abstraction has 45281 states and 54495 transitions. [2023-12-22 01:28:14,900 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 01:28:14,900 INFO L276 IsEmpty]: Start isEmpty. Operand 45281 states and 54495 transitions. [2023-12-22 01:28:14,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:28:14,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:14,904 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 01:28:14,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:15,105 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 01:28:15,105 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:15,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:15,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1301602846, now seen corresponding path program 1 times [2023-12-22 01:28:15,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:15,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106877891] [2023-12-22 01:28:15,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:15,106 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 01:28:15,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:15,107 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 01:28:15,108 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 01:28:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:15,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:28:15,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:17,044 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 01:28:17,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:17,852 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 01:28:17,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:17,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106877891] [2023-12-22 01:28:17,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106877891] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:17,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:17,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:28:17,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394409815] [2023-12-22 01:28:17,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:17,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:28:17,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:17,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:28:17,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:28:17,854 INFO L87 Difference]: Start difference. First operand 45281 states and 54495 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 01:28:31,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:31,033 INFO L93 Difference]: Finished difference Result 122656 states and 145222 transitions. [2023-12-22 01:28:31,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 01:28:31,033 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 01:28:31,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:31,160 INFO L225 Difference]: With dead ends: 122656 [2023-12-22 01:28:31,160 INFO L226 Difference]: Without dead ends: 109228 [2023-12-22 01:28:31,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 01:28:31,175 INFO L413 NwaCegarLoop]: 1701 mSDtfsCounter, 2294 mSDsluCounter, 23141 mSDsCounter, 0 mSdLazyCounter, 3128 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 24842 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:31,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2294 Valid, 24842 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3128 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-22 01:28:31,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109228 states. [2023-12-22 01:28:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109228 to 80856. [2023-12-22 01:28:37,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80856 states, 80854 states have (on average 1.1874489821159127) internal successors, (96010), 80855 states have internal predecessors, (96010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:37,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80856 states to 80856 states and 96010 transitions. [2023-12-22 01:28:37,222 INFO L78 Accepts]: Start accepts. Automaton has 80856 states and 96010 transitions. Word has length 163 [2023-12-22 01:28:37,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:37,222 INFO L495 AbstractCegarLoop]: Abstraction has 80856 states and 96010 transitions. [2023-12-22 01:28:37,222 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 01:28:37,222 INFO L276 IsEmpty]: Start isEmpty. Operand 80856 states and 96010 transitions. [2023-12-22 01:28:37,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-22 01:28:37,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:37,232 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, 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 01:28:37,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:37,435 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 01:28:37,436 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:37,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:37,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1960135830, now seen corresponding path program 1 times [2023-12-22 01:28:37,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:37,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996783009] [2023-12-22 01:28:37,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:37,437 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 01:28:37,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:37,438 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 01:28:37,439 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 01:28:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:37,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:37,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:37,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:37,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:37,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996783009] [2023-12-22 01:28:37,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996783009] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:37,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:37,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:28:37,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727628247] [2023-12-22 01:28:37,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:37,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:37,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:37,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:37,668 INFO L87 Difference]: Start difference. First operand 80856 states and 96010 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:17,292 INFO L93 Difference]: Finished difference Result 89119 states and 107261 transitions. [2023-12-22 01:29:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:29:17,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2023-12-22 01:29:17,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:17,381 INFO L225 Difference]: With dead ends: 89119 [2023-12-22 01:29:17,381 INFO L226 Difference]: Without dead ends: 83109 [2023-12-22 01:29:17,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 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 01:29:17,395 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 776 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:29:17,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 734 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 34.2s Time] [2023-12-22 01:29:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83109 states. [2023-12-22 01:29:22,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83109 to 82358. [2023-12-22 01:29:22,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82358 states, 82356 states have (on average 1.18636164942445) internal successors, (97704), 82357 states have internal predecessors, (97704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82358 states to 82358 states and 97704 transitions. [2023-12-22 01:29:23,061 INFO L78 Accepts]: Start accepts. Automaton has 82358 states and 97704 transitions. Word has length 175 [2023-12-22 01:29:23,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:23,062 INFO L495 AbstractCegarLoop]: Abstraction has 82358 states and 97704 transitions. [2023-12-22 01:29:23,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 82358 states and 97704 transitions. [2023-12-22 01:29:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:29:23,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:23,222 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 01:29:23,226 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 (39)] Forceful destruction successful, exit code 0 [2023-12-22 01:29:23,422 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 01:29:23,423 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:23,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:23,423 INFO L85 PathProgramCache]: Analyzing trace with hash -242608889, now seen corresponding path program 2 times [2023-12-22 01:29:23,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:23,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178591461] [2023-12-22 01:29:23,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:29:23,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:23,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:23,425 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 01:29:23,425 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 01:29:23,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:29:23,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:29:23,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:29:23,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:26,169 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 01:29:26,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:29:26,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:26,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178591461] [2023-12-22 01:29:26,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178591461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:29:26,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:29:26,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:29:26,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483973881] [2023-12-22 01:29:26,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:29:26,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:29:26,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:26,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:29:26,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:26,170 INFO L87 Difference]: Start difference. First operand 82358 states and 97704 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 01:29:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:32,932 INFO L93 Difference]: Finished difference Result 119981 states and 143928 transitions. [2023-12-22 01:29:32,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:29:32,933 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 01:29:32,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:33,066 INFO L225 Difference]: With dead ends: 119981 [2023-12-22 01:29:33,066 INFO L226 Difference]: Without dead ends: 104406 [2023-12-22 01:29:33,092 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 01:29:33,092 INFO L413 NwaCegarLoop]: 1613 mSDtfsCounter, 6514 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6514 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:29:33,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6514 Valid, 3472 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:29:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104406 states. [2023-12-22 01:29:39,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104406 to 82150. [2023-12-22 01:29:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82150 states, 82148 states have (on average 1.180661732482836) internal successors, (96989), 82149 states have internal predecessors, (96989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82150 states to 82150 states and 96989 transitions. [2023-12-22 01:29:39,402 INFO L78 Accepts]: Start accepts. Automaton has 82150 states and 96989 transitions. Word has length 223 [2023-12-22 01:29:39,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:39,402 INFO L495 AbstractCegarLoop]: Abstraction has 82150 states and 96989 transitions. [2023-12-22 01:29:39,402 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 01:29:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand 82150 states and 96989 transitions. [2023-12-22 01:29:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:29:39,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:39,429 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 01:29:39,431 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 (40)] Forceful destruction successful, exit code 0 [2023-12-22 01:29:39,631 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 01:29:39,632 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:39,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:39,632 INFO L85 PathProgramCache]: Analyzing trace with hash 112096683, now seen corresponding path program 2 times [2023-12-22 01:29:39,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:39,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390510927] [2023-12-22 01:29:39,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:29:39,633 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 01:29:39,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:39,634 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 01:29:39,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-22 01:29:39,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:29:39,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:29:39,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:29:39,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:42,268 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 01:29:42,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:29:42,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:42,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390510927] [2023-12-22 01:29:42,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390510927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:29:42,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:29:42,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:29:42,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109523404] [2023-12-22 01:29:42,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:29:42,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:29:42,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:42,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:29:42,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:42,270 INFO L87 Difference]: Start difference. First operand 82150 states and 96989 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 01:29:49,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:49,202 INFO L93 Difference]: Finished difference Result 112515 states and 134569 transitions. [2023-12-22 01:29:49,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:29:49,203 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 01:29:49,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:49,334 INFO L225 Difference]: With dead ends: 112515 [2023-12-22 01:29:49,335 INFO L226 Difference]: Without dead ends: 106113 [2023-12-22 01:29:49,358 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 01:29:49,359 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 3440 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 3497 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 01:29:49,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3440 Valid, 3497 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:29:49,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106113 states. [2023-12-22 01:29:55,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106113 to 87426. [2023-12-22 01:29:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87426 states, 87424 states have (on average 1.1784978953147878) internal successors, (103029), 87425 states have internal predecessors, (103029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:56,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87426 states to 87426 states and 103029 transitions. [2023-12-22 01:29:56,083 INFO L78 Accepts]: Start accepts. Automaton has 87426 states and 103029 transitions. Word has length 223 [2023-12-22 01:29:56,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:56,084 INFO L495 AbstractCegarLoop]: Abstraction has 87426 states and 103029 transitions. [2023-12-22 01:29:56,084 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 01:29:56,084 INFO L276 IsEmpty]: Start isEmpty. Operand 87426 states and 103029 transitions. [2023-12-22 01:29:56,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:29:56,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:56,115 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 01:29:56,130 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 01:29:56,317 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 01:29:56,317 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:56,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:56,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1897978759, now seen corresponding path program 2 times [2023-12-22 01:29:56,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:56,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487712196] [2023-12-22 01:29:56,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:29:56,319 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 01:29:56,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:56,320 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 01:29:56,321 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 01:29:56,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:29:56,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:29:56,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:29:56,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:58,968 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 01:29:58,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:29:58,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:58,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487712196] [2023-12-22 01:29:58,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487712196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:29:58,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:29:58,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:29:58,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420647388] [2023-12-22 01:29:58,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:29:58,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:29:58,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:29:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:29:58,969 INFO L87 Difference]: Start difference. First operand 87426 states and 103029 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 01:30:06,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:06,277 INFO L93 Difference]: Finished difference Result 116077 states and 138483 transitions. [2023-12-22 01:30:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:30:06,279 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 01:30:06,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:06,409 INFO L225 Difference]: With dead ends: 116077 [2023-12-22 01:30:06,409 INFO L226 Difference]: Without dead ends: 109107 [2023-12-22 01:30:06,434 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 01:30:06,434 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 3342 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 3546 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:06,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3342 Valid, 3546 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:30:06,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109107 states. [2023-12-22 01:30:13,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109107 to 93496. [2023-12-22 01:30:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93496 states, 93494 states have (on average 1.1763749545425375) internal successors, (109984), 93495 states have internal predecessors, (109984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93496 states to 93496 states and 109984 transitions. [2023-12-22 01:30:13,678 INFO L78 Accepts]: Start accepts. Automaton has 93496 states and 109984 transitions. Word has length 223 [2023-12-22 01:30:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:13,678 INFO L495 AbstractCegarLoop]: Abstraction has 93496 states and 109984 transitions. [2023-12-22 01:30:13,678 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 01:30:13,678 INFO L276 IsEmpty]: Start isEmpty. Operand 93496 states and 109984 transitions. [2023-12-22 01:30:13,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:30:13,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:13,707 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 01:30:13,712 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 01:30:13,907 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 01:30:13,908 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:13,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:13,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1898987733, now seen corresponding path program 2 times [2023-12-22 01:30:13,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:13,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088154800] [2023-12-22 01:30:13,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:30:13,909 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 01:30:13,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:13,910 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 01:30:13,910 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 01:30:13,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:30:13,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:30:13,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:30:13,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:16,378 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 01:30:16,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:30:16,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:16,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088154800] [2023-12-22 01:30:16,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088154800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:30:16,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:30:16,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:30:16,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344031247] [2023-12-22 01:30:16,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:30:16,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:30:16,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:16,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:30:16,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:30:16,379 INFO L87 Difference]: Start difference. First operand 93496 states and 109984 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 01:30:24,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:24,126 INFO L93 Difference]: Finished difference Result 123683 states and 147322 transitions. [2023-12-22 01:30:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:30:24,127 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 01:30:24,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:24,249 INFO L225 Difference]: With dead ends: 123683 [2023-12-22 01:30:24,249 INFO L226 Difference]: Without dead ends: 114391 [2023-12-22 01:30:24,272 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 01:30:24,272 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 6253 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6253 SdHoareTripleChecker+Valid, 3550 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:24,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6253 Valid, 3550 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:30:24,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114391 states. [2023-12-22 01:30:31,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114391 to 101183. [2023-12-22 01:30:31,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101183 states, 101181 states have (on average 1.1735108370148546) internal successors, (118737), 101182 states have internal predecessors, (118737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101183 states to 101183 states and 118737 transitions. [2023-12-22 01:30:32,123 INFO L78 Accepts]: Start accepts. Automaton has 101183 states and 118737 transitions. Word has length 223 [2023-12-22 01:30:32,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:32,123 INFO L495 AbstractCegarLoop]: Abstraction has 101183 states and 118737 transitions. [2023-12-22 01:30:32,123 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 01:30:32,123 INFO L276 IsEmpty]: Start isEmpty. Operand 101183 states and 118737 transitions. [2023-12-22 01:30:32,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:30:32,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:32,152 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 01:30:32,156 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 01:30:32,353 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 01:30:32,353 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:32,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1104249351, now seen corresponding path program 2 times [2023-12-22 01:30:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:32,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871556280] [2023-12-22 01:30:32,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:30:32,354 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 01:30:32,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:32,532 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 01:30:32,533 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 01:30:32,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:30:32,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:30:32,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:30:32,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:35,648 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 01:30:35,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:30:35,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:35,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871556280] [2023-12-22 01:30:35,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871556280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:30:35,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:30:35,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:30:35,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570062290] [2023-12-22 01:30:35,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:30:35,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:30:35,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:35,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:30:35,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:30:35,650 INFO L87 Difference]: Start difference. First operand 101183 states and 118737 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 01:30:44,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:44,009 INFO L93 Difference]: Finished difference Result 132944 states and 157997 transitions. [2023-12-22 01:30:44,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:30:44,010 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 01:30:44,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:44,147 INFO L225 Difference]: With dead ends: 132944 [2023-12-22 01:30:44,147 INFO L226 Difference]: Without dead ends: 122588 [2023-12-22 01:30:44,169 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 01:30:44,170 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 3312 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3312 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:44,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3312 Valid, 3590 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:30:44,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122588 states. [2023-12-22 01:30:52,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122588 to 111100. [2023-12-22 01:30:52,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111100 states, 111098 states have (on average 1.17197429296657) internal successors, (130204), 111099 states have internal predecessors, (130204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111100 states to 111100 states and 130204 transitions. [2023-12-22 01:30:53,120 INFO L78 Accepts]: Start accepts. Automaton has 111100 states and 130204 transitions. Word has length 223 [2023-12-22 01:30:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:53,121 INFO L495 AbstractCegarLoop]: Abstraction has 111100 states and 130204 transitions. [2023-12-22 01:30:53,121 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 01:30:53,121 INFO L276 IsEmpty]: Start isEmpty. Operand 111100 states and 130204 transitions. [2023-12-22 01:30:53,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 01:30:53,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:53,148 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 01:30:53,152 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 01:30:53,348 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 01:30:53,348 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:53,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:53,349 INFO L85 PathProgramCache]: Analyzing trace with hash -888985429, now seen corresponding path program 2 times [2023-12-22 01:30:53,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:53,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796793861] [2023-12-22 01:30:53,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:30:53,350 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 01:30:53,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:53,351 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 01:30:53,352 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 01:30:53,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:30:53,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:30:53,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:30:53,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:56,049 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 01:30:56,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:30:56,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:56,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796793861] [2023-12-22 01:30:56,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796793861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:30:56,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:30:56,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:30:56,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872478516] [2023-12-22 01:30:56,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:30:56,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:30:56,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:56,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:30:56,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:30:56,050 INFO L87 Difference]: Start difference. First operand 111100 states and 130204 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 01:31:04,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:31:04,579 INFO L93 Difference]: Finished difference Result 139817 states and 165729 transitions. [2023-12-22 01:31:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:31:04,580 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 01:31:04,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:31:04,720 INFO L225 Difference]: With dead ends: 139817 [2023-12-22 01:31:04,720 INFO L226 Difference]: Without dead ends: 131803 [2023-12-22 01:31:04,825 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 01:31:04,825 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 4685 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4685 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:31:04,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4685 Valid, 3520 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:31:04,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131803 states. [2023-12-22 01:31:13,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131803 to 119436. [2023-12-22 01:31:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119436 states, 119434 states have (on average 1.1713666125223974) internal successors, (139901), 119435 states have internal predecessors, (139901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:31:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119436 states to 119436 states and 139901 transitions. [2023-12-22 01:31:14,119 INFO L78 Accepts]: Start accepts. Automaton has 119436 states and 139901 transitions. Word has length 223 [2023-12-22 01:31:14,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:14,120 INFO L495 AbstractCegarLoop]: Abstraction has 119436 states and 139901 transitions. [2023-12-22 01:31:14,120 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 01:31:14,120 INFO L276 IsEmpty]: Start isEmpty. Operand 119436 states and 139901 transitions. [2023-12-22 01:31:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:31:14,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:14,146 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 01:31:14,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-22 01:31:14,346 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 01:31:14,346 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:14,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:14,347 INFO L85 PathProgramCache]: Analyzing trace with hash 463732578, now seen corresponding path program 1 times [2023-12-22 01:31:14,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:14,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992322994] [2023-12-22 01:31:14,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:14,347 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 01:31:14,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:14,348 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 01:31:14,349 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 (46)] Waiting until timeout for monitored process [2023-12-22 01:31:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:14,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:31:14,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:17,338 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 01:31:17,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:18,437 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 01:31:18,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:18,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992322994] [2023-12-22 01:31:18,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992322994] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:18,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:18,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:31:18,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70669335] [2023-12-22 01:31:18,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:18,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:31:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:31:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:31:18,440 INFO L87 Difference]: Start difference. First operand 119436 states and 139901 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 01:31:44,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:31:44,327 INFO L93 Difference]: Finished difference Result 154847 states and 181084 transitions. [2023-12-22 01:31:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:31:44,328 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 01:31:44,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:31:44,470 INFO L225 Difference]: With dead ends: 154847 [2023-12-22 01:31:44,470 INFO L226 Difference]: Without dead ends: 142649 [2023-12-22 01:31:44,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4412 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:31:44,487 INFO L413 NwaCegarLoop]: 1790 mSDtfsCounter, 7207 mSDsluCounter, 37767 mSDsCounter, 0 mSdLazyCounter, 7261 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7207 SdHoareTripleChecker+Valid, 39557 SdHoareTripleChecker+Invalid, 7286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:31:44,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7207 Valid, 39557 Invalid, 7286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 7261 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-22 01:31:44,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142649 states. [2023-12-22 01:31:50,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142649 to 69783. [2023-12-22 01:31:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69783 states, 69781 states have (on average 1.1776844699846662) internal successors, (82180), 69782 states have internal predecessors, (82180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:31:50,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69783 states to 69783 states and 82180 transitions. [2023-12-22 01:31:50,511 INFO L78 Accepts]: Start accepts. Automaton has 69783 states and 82180 transitions. Word has length 224 [2023-12-22 01:31:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:50,511 INFO L495 AbstractCegarLoop]: Abstraction has 69783 states and 82180 transitions. [2023-12-22 01:31:50,511 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 01:31:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 69783 states and 82180 transitions. [2023-12-22 01:31:50,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:31:50,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:50,525 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 01:31:50,529 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 01:31:50,725 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 01:31:50,726 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:50,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:50,726 INFO L85 PathProgramCache]: Analyzing trace with hash -8497914, now seen corresponding path program 1 times [2023-12-22 01:31:50,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:50,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784354964] [2023-12-22 01:31:50,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:50,727 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 01:31:50,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:50,728 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 01:31:50,730 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 01:31:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:50,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:31:50,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:53,181 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 01:31:53,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:54,101 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 01:31:54,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:54,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784354964] [2023-12-22 01:31:54,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784354964] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:54,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:54,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:31:54,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476888051] [2023-12-22 01:31:54,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:54,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:31:54,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:54,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:31:54,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:31:54,104 INFO L87 Difference]: Start difference. First operand 69783 states and 82180 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 01:32:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:32:10,048 INFO L93 Difference]: Finished difference Result 105105 states and 123432 transitions. [2023-12-22 01:32:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-22 01:32:10,049 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 01:32:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:32:10,146 INFO L225 Difference]: With dead ends: 105105 [2023-12-22 01:32:10,147 INFO L226 Difference]: Without dead ends: 91744 [2023-12-22 01:32:10,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=960, Invalid=7412, Unknown=0, NotChecked=0, Total=8372 [2023-12-22 01:32:10,163 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 3736 mSDsluCounter, 33460 mSDsCounter, 0 mSdLazyCounter, 5109 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 35158 SdHoareTripleChecker+Invalid, 5127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 5109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:32:10,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3736 Valid, 35158 Invalid, 5127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 5109 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-22 01:32:10,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91744 states. [2023-12-22 01:32:16,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91744 to 79551. [2023-12-22 01:32:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79551 states, 79549 states have (on average 1.1757533092810721) internal successors, (93530), 79550 states have internal predecessors, (93530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:32:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79551 states to 79551 states and 93530 transitions. [2023-12-22 01:32:17,085 INFO L78 Accepts]: Start accepts. Automaton has 79551 states and 93530 transitions. Word has length 224 [2023-12-22 01:32:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:32:17,085 INFO L495 AbstractCegarLoop]: Abstraction has 79551 states and 93530 transitions. [2023-12-22 01:32:17,085 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 01:32:17,085 INFO L276 IsEmpty]: Start isEmpty. Operand 79551 states and 93530 transitions. [2023-12-22 01:32:17,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:32:17,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:32:17,100 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 01:32:17,104 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 (47)] Forceful destruction successful, exit code 0 [2023-12-22 01:32:17,301 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 01:32:17,301 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:32:17,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:32:17,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1750342174, now seen corresponding path program 1 times [2023-12-22 01:32:17,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:32:17,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316484341] [2023-12-22 01:32:17,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:32:17,302 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 01:32:17,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:32:17,303 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 01:32:17,305 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 01:32:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:32:17,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:32:17,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:32:19,648 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 01:32:19,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:32:20,565 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 01:32:20,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:32:20,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316484341] [2023-12-22 01:32:20,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316484341] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:32:20,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:32:20,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:32:20,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807052166] [2023-12-22 01:32:20,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:32:20,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:32:20,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:32:20,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:32:20,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:32:20,567 INFO L87 Difference]: Start difference. First operand 79551 states and 93530 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 01:32:47,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:32:47,416 INFO L93 Difference]: Finished difference Result 122796 states and 144182 transitions. [2023-12-22 01:32:47,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:32:47,417 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 01:32:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:32:47,552 INFO L225 Difference]: With dead ends: 122796 [2023-12-22 01:32:47,552 INFO L226 Difference]: Without dead ends: 105367 [2023-12-22 01:32:47,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4427 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=2311, Invalid=14719, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:32:47,579 INFO L413 NwaCegarLoop]: 1802 mSDtfsCounter, 4302 mSDsluCounter, 37727 mSDsCounter, 0 mSdLazyCounter, 7023 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4302 SdHoareTripleChecker+Valid, 39529 SdHoareTripleChecker+Invalid, 7049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 7023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:32:47,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4302 Valid, 39529 Invalid, 7049 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 7023 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-12-22 01:32:47,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105367 states. [2023-12-22 01:32:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105367 to 88970. [2023-12-22 01:32:55,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88970 states, 88968 states have (on average 1.1757598237568565) internal successors, (104605), 88969 states have internal predecessors, (104605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:32:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88970 states to 88970 states and 104605 transitions. [2023-12-22 01:32:55,845 INFO L78 Accepts]: Start accepts. Automaton has 88970 states and 104605 transitions. Word has length 224 [2023-12-22 01:32:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:32:55,845 INFO L495 AbstractCegarLoop]: Abstraction has 88970 states and 104605 transitions. [2023-12-22 01:32:55,845 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 01:32:55,845 INFO L276 IsEmpty]: Start isEmpty. Operand 88970 states and 104605 transitions. [2023-12-22 01:32:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:32:55,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:32:55,862 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 01:32:55,869 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 (48)] Forceful destruction successful, exit code 0 [2023-12-22 01:32:56,063 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 01:32:56,063 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:32:56,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:32:56,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1155694214, now seen corresponding path program 1 times [2023-12-22 01:32:56,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:32:56,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570217870] [2023-12-22 01:32:56,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:32:56,064 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 01:32:56,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:32:56,067 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 01:32:56,068 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 01:32:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:32:56,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:32:56,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:32:58,805 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 01:32:58,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:32:59,853 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 01:32:59,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:32:59,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570217870] [2023-12-22 01:32:59,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570217870] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:32:59,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:32:59,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:32:59,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793172623] [2023-12-22 01:32:59,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:32:59,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:32:59,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:32:59,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:32:59,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:32:59,856 INFO L87 Difference]: Start difference. First operand 88970 states and 104605 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 01:33:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:33:32,744 INFO L93 Difference]: Finished difference Result 134378 states and 157257 transitions. [2023-12-22 01:33:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-22 01:33:32,744 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 01:33:32,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:33:32,887 INFO L225 Difference]: With dead ends: 134378 [2023-12-22 01:33:32,888 INFO L226 Difference]: Without dead ends: 112209 [2023-12-22 01:33:32,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5611 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=2694, Invalid=17612, Unknown=0, NotChecked=0, Total=20306 [2023-12-22 01:33:32,917 INFO L413 NwaCegarLoop]: 1827 mSDtfsCounter, 2616 mSDsluCounter, 38332 mSDsCounter, 0 mSdLazyCounter, 7914 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 40159 SdHoareTripleChecker+Invalid, 7942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 7914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:33:32,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2616 Valid, 40159 Invalid, 7942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 7914 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-12-22 01:33:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112209 states. [2023-12-22 01:33:41,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112209 to 90573. [2023-12-22 01:33:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90573 states, 90571 states have (on average 1.1724945070718) internal successors, (106194), 90572 states have internal predecessors, (106194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:33:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90573 states to 90573 states and 106194 transitions. [2023-12-22 01:33:41,747 INFO L78 Accepts]: Start accepts. Automaton has 90573 states and 106194 transitions. Word has length 224 [2023-12-22 01:33:41,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:33:41,747 INFO L495 AbstractCegarLoop]: Abstraction has 90573 states and 106194 transitions. [2023-12-22 01:33:41,748 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 01:33:41,748 INFO L276 IsEmpty]: Start isEmpty. Operand 90573 states and 106194 transitions. [2023-12-22 01:33:41,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 01:33:41,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:33:41,762 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 01:33:41,769 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 (49)] Forceful destruction successful, exit code 0 [2023-12-22 01:33:41,964 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 01:33:41,965 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:33:41,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:33:41,965 INFO L85 PathProgramCache]: Analyzing trace with hash -505041822, now seen corresponding path program 1 times [2023-12-22 01:33:41,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:33:41,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144866317] [2023-12-22 01:33:41,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:33:41,966 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 01:33:41,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:33:41,967 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 01:33:41,968 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 01:33:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:33:42,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:33:42,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:33:44,788 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 01:33:44,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:33:45,827 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 01:33:45,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:33:45,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144866317] [2023-12-22 01:33:45,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144866317] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:33:45,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:33:45,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:33:45,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419658828] [2023-12-22 01:33:45,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:33:45,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:33:45,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:33:45,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:33:45,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:33:45,829 INFO L87 Difference]: Start difference. First operand 90573 states and 106194 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 01:34:19,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:34:19,766 INFO L93 Difference]: Finished difference Result 134444 states and 157147 transitions. [2023-12-22 01:34:19,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 01:34:19,766 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 01:34:19,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:34:19,893 INFO L225 Difference]: With dead ends: 134444 [2023-12-22 01:34:19,894 INFO L226 Difference]: Without dead ends: 112176 [2023-12-22 01:34:19,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6979 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 01:34:19,917 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 5610 mSDsluCounter, 35168 mSDsCounter, 0 mSdLazyCounter, 8040 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5610 SdHoareTripleChecker+Valid, 37011 SdHoareTripleChecker+Invalid, 8067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 8040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:34:19,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5610 Valid, 37011 Invalid, 8067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 8040 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-12-22 01:34:19,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112176 states. [2023-12-22 01:34:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112176 to 89405. [2023-12-22 01:34:29,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89405 states, 89403 states have (on average 1.1693008064606334) internal successors, (104539), 89404 states have internal predecessors, (104539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:34:29,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89405 states to 89405 states and 104539 transitions. [2023-12-22 01:34:29,284 INFO L78 Accepts]: Start accepts. Automaton has 89405 states and 104539 transitions. Word has length 224 [2023-12-22 01:34:29,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:34:29,284 INFO L495 AbstractCegarLoop]: Abstraction has 89405 states and 104539 transitions. [2023-12-22 01:34:29,284 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 01:34:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 89405 states and 104539 transitions. [2023-12-22 01:34:29,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-22 01:34:29,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:34:29,295 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 01:34:29,300 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 01:34:29,496 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 01:34:29,496 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:34:29,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:34:29,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1349594577, now seen corresponding path program 1 times [2023-12-22 01:34:29,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:34:29,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287051415] [2023-12-22 01:34:29,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:34:29,498 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 01:34:29,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:34:29,500 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 01:34:29,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2023-12-22 01:34:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:34:29,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:34:29,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:34:32,745 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 01:34:32,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:34:34,025 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 01:34:34,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:34:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287051415] [2023-12-22 01:34:34,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287051415] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:34:34,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:34:34,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:34:34,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509710863] [2023-12-22 01:34:34,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:34:34,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:34:34,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:34:34,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:34:34,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:34:34,027 INFO L87 Difference]: Start difference. First operand 89405 states and 104539 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 01:35:11,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:35:11,359 INFO L93 Difference]: Finished difference Result 205509 states and 238344 transitions. [2023-12-22 01:35:11,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 01:35:11,360 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 01:35:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:35:11,566 INFO L225 Difference]: With dead ends: 205509 [2023-12-22 01:35:11,567 INFO L226 Difference]: Without dead ends: 191154 [2023-12-22 01:35:11,607 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 01:35:11,608 INFO L413 NwaCegarLoop]: 1774 mSDtfsCounter, 7265 mSDsluCounter, 32398 mSDsCounter, 0 mSdLazyCounter, 6250 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7265 SdHoareTripleChecker+Valid, 34172 SdHoareTripleChecker+Invalid, 6273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 6250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:35:11,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7265 Valid, 34172 Invalid, 6273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 6250 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-22 01:35:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191154 states. [2023-12-22 01:35:29,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191154 to 172710. [2023-12-22 01:35:29,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172710 states, 172708 states have (on average 1.1619959700766611) internal successors, (200686), 172709 states have internal predecessors, (200686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:35:30,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172710 states to 172710 states and 200686 transitions. [2023-12-22 01:35:30,206 INFO L78 Accepts]: Start accepts. Automaton has 172710 states and 200686 transitions. Word has length 225 [2023-12-22 01:35:30,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:35:30,206 INFO L495 AbstractCegarLoop]: Abstraction has 172710 states and 200686 transitions. [2023-12-22 01:35:30,206 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 01:35:30,206 INFO L276 IsEmpty]: Start isEmpty. Operand 172710 states and 200686 transitions. [2023-12-22 01:35:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 01:35:30,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:35:30,243 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:30,248 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 (51)] Forceful destruction successful, exit code 0 [2023-12-22 01:35:30,443 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 01:35:30,444 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:35:30,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:35:30,444 INFO L85 PathProgramCache]: Analyzing trace with hash 702711830, now seen corresponding path program 1 times [2023-12-22 01:35:30,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:35:30,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244859230] [2023-12-22 01:35:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:35:30,445 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 01:35:30,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:35:30,446 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 01:35:30,447 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 01:35:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:35:30,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:35:30,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:35:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 160 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:35:31,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:35:31,698 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 160 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:35:31,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:35:31,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244859230] [2023-12-22 01:35:31,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244859230] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:35:31,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:35:31,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:35:31,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705432203] [2023-12-22 01:35:31,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:35:31,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:35:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:35:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:35:31,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:35:31,700 INFO L87 Difference]: Start difference. First operand 172710 states and 200686 transitions. Second operand has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 01:37:24,830 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 (52)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 01:37:24,831 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 01:37:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 01:37:24,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 01:37:24,888 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 5665 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 9223 mSolverCounterSat, 2487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5665 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 11710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2487 IncrementalHoareTripleChecker+Valid, 9223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:37:24,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5665 Valid, 518 Invalid, 11710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2487 Valid, 9223 Invalid, 0 Unknown, 0 Unchecked, 95.3s Time] [2023-12-22 01:37:24,889 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 01:37:24,903 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 01:37:25,089 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 01:37:25,090 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (172710states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (187097 states constructed, input type IntersectNwa). [2023-12-22 01:37:25,092 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 01:37:25,094 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] [2023-12-22 01:37:25,096 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 01:37:25,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:37:25 BoogieIcfgContainer [2023-12-22 01:37:25,097 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 01:37:25,097 INFO L158 Benchmark]: Toolchain (without parser) took 840093.02ms. Allocated memory was 232.8MB in the beginning and 6.0GB in the end (delta: 5.8GB). Free memory was 161.9MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2023-12-22 01:37:25,097 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 232.8MB. Free memory was 180.5MB in the beginning and 180.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 01:37:25,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1385.58ms. Allocated memory was 232.8MB in the beginning and 317.7MB in the end (delta: 84.9MB). Free memory was 161.9MB in the beginning and 256.2MB in the end (delta: -94.3MB). Peak memory consumption was 128.8MB. Max. memory is 8.0GB. [2023-12-22 01:37:25,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.15ms. Allocated memory is still 317.7MB. Free memory was 256.2MB in the beginning and 220.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-22 01:37:25,098 INFO L158 Benchmark]: Boogie Preprocessor took 261.48ms. Allocated memory is still 317.7MB. Free memory was 220.5MB in the beginning and 181.2MB in the end (delta: 39.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-22 01:37:25,098 INFO L158 Benchmark]: RCFGBuilder took 26859.54ms. Allocated memory was 317.7MB in the beginning and 556.8MB in the end (delta: 239.1MB). Free memory was 181.2MB in the beginning and 435.5MB in the end (delta: -254.3MB). Peak memory consumption was 161.0MB. Max. memory is 8.0GB. [2023-12-22 01:37:25,098 INFO L158 Benchmark]: TraceAbstraction took 811428.49ms. Allocated memory was 556.8MB in the beginning and 6.0GB in the end (delta: 5.5GB). Free memory was 434.9MB in the beginning and 3.1GB in the end (delta: -2.6GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2023-12-22 01:37:25,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 232.8MB. Free memory was 180.5MB in the beginning and 180.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1385.58ms. Allocated memory was 232.8MB in the beginning and 317.7MB in the end (delta: 84.9MB). Free memory was 161.9MB in the beginning and 256.2MB in the end (delta: -94.3MB). Peak memory consumption was 128.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 151.15ms. Allocated memory is still 317.7MB. Free memory was 256.2MB in the beginning and 220.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 261.48ms. Allocated memory is still 317.7MB. Free memory was 220.5MB in the beginning and 181.2MB in the end (delta: 39.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 26859.54ms. Allocated memory was 317.7MB in the beginning and 556.8MB in the end (delta: 239.1MB). Free memory was 181.2MB in the beginning and 435.5MB in the end (delta: -254.3MB). Peak memory consumption was 161.0MB. Max. memory is 8.0GB. * TraceAbstraction took 811428.49ms. Allocated memory was 556.8MB in the beginning and 6.0GB in the end (delta: 5.5GB). Free memory was 434.9MB in the beginning and 3.1GB in the end (delta: -2.6GB). Peak memory consumption was 3.8GB. 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: 732]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 732). Cancelled while NwaCegarLoop was constructing difference of abstraction (172710states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (187097 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 (172710states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (187097 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 851 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 811.4s, OverallIterations: 51, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 587.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232595 SdHoareTripleChecker+Valid, 338.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232595 mSDsluCounter, 570259 SdHoareTripleChecker+Invalid, 288.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 492072 mSDsCounter, 7235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89828 IncrementalHoareTripleChecker+Invalid, 97063 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7235 mSolverCounterUnsat, 78187 mSDtfsCounter, 89828 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12108 GetRequests, 10444 SyntacticMatches, 0 SemanticMatches, 1664 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38033 ImplicationChecksByTransitivity, 101.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172710occurred in iteration=50, InterpolantAutomatonStates: 1255, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 133.6s AutomataMinimizationTime, 50 MinimizatonAttempts, 392299 StatesRemovedByMinimization, 47 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 73.9s InterpolantComputationTime, 6964 NumberOfCodeBlocks, 6124 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 11071 ConstructedInterpolants, 3008 QuantifiedInterpolants, 148745 SizeOfPredicates, 260 NumberOfNonLiveVariables, 14047 ConjunctsInSsa, 424 ConjunctsInUnsatCore, 77 InterpolantComputations, 25 PerfectInterpolantSequences, 4283/9843 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