/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:56:29,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:56:29,882 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:56:29,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:56:29,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:56:29,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:56:29,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:56:29,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:56:29,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:56:29,915 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:56:29,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:56:29,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:56:29,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:56:29,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:56:29,916 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:56:29,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:56:29,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:56:29,917 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:56:29,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:56:29,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:56:29,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:56:29,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:56:29,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:56:29,920 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:56:29,920 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:56:29,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:56:29,921 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:56:29,921 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:56:29,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:56:29,921 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:56:29,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:56:29,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:56:29,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:56:29,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:56:29,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:56:29,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:56:29,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:56:29,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:56:29,923 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:56:29,923 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:56:29,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:56:29,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:56:29,924 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:56:29,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:56:29,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:56:29,924 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:56:29,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:56:30,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:56:30,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:56:30,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:56:30,070 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:56:30,070 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:56:30,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c [2023-12-16 17:56:31,122 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:56:31,401 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:56:31,402 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c [2023-12-16 17:56:31,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa121a07/d2b95426e58c44c38177d2c5d10e83c4/FLAGd55e85ed8 [2023-12-16 17:56:31,422 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa121a07/d2b95426e58c44c38177d2c5d10e83c4 [2023-12-16 17:56:31,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:56:31,428 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:56:31,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:56:31,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:56:31,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:56:31,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511fc7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31, skipping insertion in model container [2023-12-16 17:56:31,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,462 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:56:31,629 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c[14577,14590] [2023-12-16 17:56:31,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:56:31,642 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:56:31,685 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c[14577,14590] [2023-12-16 17:56:31,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:56:31,702 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:56:31,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31 WrapperNode [2023-12-16 17:56:31,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:56:31,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:56:31,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:56:31,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:56:31,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,742 INFO L138 Inliner]: procedures = 32, calls = 47, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 478 [2023-12-16 17:56:31,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:56:31,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:56:31,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:56:31,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:56:31,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,762 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,776 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]. [2023-12-16 17:56:31,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:56:31,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:56:31,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:56:31,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:56:31,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (1/1) ... [2023-12-16 17:56:31,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:56:31,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:56:31,843 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) [2023-12-16 17:56:31,858 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 [2023-12-16 17:56:31,872 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2023-12-16 17:56:31,872 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2023-12-16 17:56:31,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:56:31,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:56:31,872 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2023-12-16 17:56:31,872 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2023-12-16 17:56:31,872 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-16 17:56:31,872 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-16 17:56:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 17:56:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 17:56:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2023-12-16 17:56:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2023-12-16 17:56:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:56:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:56:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2023-12-16 17:56:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2023-12-16 17:56:31,961 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:56:31,962 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:56:32,419 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:56:32,492 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:56:32,492 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:56:32,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:56:32 BoogieIcfgContainer [2023-12-16 17:56:32,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:56:32,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:56:32,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:56:32,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:56:32,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:56:31" (1/3) ... [2023-12-16 17:56:32,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2510c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:56:32, skipping insertion in model container [2023-12-16 17:56:32,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:31" (2/3) ... [2023-12-16 17:56:32,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2510c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:56:32, skipping insertion in model container [2023-12-16 17:56:32,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:56:32" (3/3) ... [2023-12-16 17:56:32,501 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c [2023-12-16 17:56:32,515 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:56:32,515 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:56:32,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:56:32,565 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;@6d5b3337, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:56:32,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:56:32,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 126 states have (on average 1.6111111111111112) internal successors, (203), 128 states have internal predecessors, (203), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 17:56:32,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:56:32,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:32,581 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] [2023-12-16 17:56:32,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:32,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash 103658677, now seen corresponding path program 1 times [2023-12-16 17:56:32,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:32,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448352220] [2023-12-16 17:56:32,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:32,597 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 [2023-12-16 17:56:32,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:32,600 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) [2023-12-16 17:56:32,652 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 [2023-12-16 17:56:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:32,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:56:32,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:32,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:32,788 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:32,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448352220] [2023-12-16 17:56:32,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448352220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:32,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:32,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:56:32,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183626885] [2023-12-16 17:56:32,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:32,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:56:32,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:32,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:56:32,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:56:32,827 INFO L87 Difference]: Start difference. First operand has 163 states, 126 states have (on average 1.6111111111111112) internal successors, (203), 128 states have internal predecessors, (203), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:32,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:32,897 INFO L93 Difference]: Finished difference Result 309 states and 522 transitions. [2023-12-16 17:56:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:56:32,899 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-12-16 17:56:32,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:32,909 INFO L225 Difference]: With dead ends: 309 [2023-12-16 17:56:32,909 INFO L226 Difference]: Without dead ends: 161 [2023-12-16 17:56:32,913 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 [2023-12-16 17:56:32,916 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:32,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 251 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-16 17:56:32,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-12-16 17:56:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 125 states have (on average 1.584) internal successors, (198), 126 states have internal predecessors, (198), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 17:56:32,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 256 transitions. [2023-12-16 17:56:32,955 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 256 transitions. Word has length 23 [2023-12-16 17:56:32,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:32,956 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 256 transitions. [2023-12-16 17:56:32,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 256 transitions. [2023-12-16 17:56:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:56:32,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:32,957 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] [2023-12-16 17:56:32,975 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 [2023-12-16 17:56:33,160 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 [2023-12-16 17:56:33,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:33,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:33,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1890486029, now seen corresponding path program 1 times [2023-12-16 17:56:33,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:33,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015340029] [2023-12-16 17:56:33,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:33,163 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 [2023-12-16 17:56:33,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:33,164 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) [2023-12-16 17:56:33,165 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 [2023-12-16 17:56:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:33,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:56:33,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:33,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:33,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:33,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:33,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015340029] [2023-12-16 17:56:33,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015340029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:33,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:33,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:56:33,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441872724] [2023-12-16 17:56:33,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:33,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:56:33,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:33,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:56:33,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:33,272 INFO L87 Difference]: Start difference. First operand 161 states and 256 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:33,357 INFO L93 Difference]: Finished difference Result 309 states and 487 transitions. [2023-12-16 17:56:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:56:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-12-16 17:56:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:33,358 INFO L225 Difference]: With dead ends: 309 [2023-12-16 17:56:33,358 INFO L226 Difference]: Without dead ends: 161 [2023-12-16 17:56:33,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:33,360 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 130 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:33,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1067 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-16 17:56:33,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-12-16 17:56:33,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 125 states have (on average 1.488) internal successors, (186), 126 states have internal predecessors, (186), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 17:56:33,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 244 transitions. [2023-12-16 17:56:33,371 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 244 transitions. Word has length 23 [2023-12-16 17:56:33,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:33,372 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 244 transitions. [2023-12-16 17:56:33,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:33,372 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 244 transitions. [2023-12-16 17:56:33,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 17:56:33,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:33,376 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] [2023-12-16 17:56:33,390 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 [2023-12-16 17:56:33,578 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 [2023-12-16 17:56:33,578 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:33,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:33,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2080134839, now seen corresponding path program 1 times [2023-12-16 17:56:33,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:33,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885452934] [2023-12-16 17:56:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:33,580 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 [2023-12-16 17:56:33,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:33,589 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) [2023-12-16 17:56:33,620 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 [2023-12-16 17:56:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:33,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:33,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:33,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:33,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:33,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885452934] [2023-12-16 17:56:33,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885452934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:33,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:33,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:33,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113628592] [2023-12-16 17:56:33,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:33,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:33,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:33,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:33,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:33,677 INFO L87 Difference]: Start difference. First operand 161 states and 244 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:33,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:33,723 INFO L93 Difference]: Finished difference Result 312 states and 482 transitions. [2023-12-16 17:56:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:33,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-12-16 17:56:33,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:33,727 INFO L225 Difference]: With dead ends: 312 [2023-12-16 17:56:33,727 INFO L226 Difference]: Without dead ends: 167 [2023-12-16 17:56:33,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:33,730 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 6 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:33,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 689 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-16 17:56:33,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2023-12-16 17:56:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 128 states have (on average 1.4765625) internal successors, (189), 129 states have internal predecessors, (189), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 17:56:33,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 247 transitions. [2023-12-16 17:56:33,755 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 247 transitions. Word has length 34 [2023-12-16 17:56:33,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:33,755 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 247 transitions. [2023-12-16 17:56:33,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:33,756 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 247 transitions. [2023-12-16 17:56:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-16 17:56:33,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:33,757 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:33,760 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 (4)] Ended with exit code 0 [2023-12-16 17:56:33,960 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 [2023-12-16 17:56:33,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:33,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:33,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2074468601, now seen corresponding path program 1 times [2023-12-16 17:56:33,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:33,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387331214] [2023-12-16 17:56:33,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:33,962 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 [2023-12-16 17:56:33,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:33,963 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) [2023-12-16 17:56:33,965 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 [2023-12-16 17:56:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:34,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:34,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:34,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:34,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:34,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387331214] [2023-12-16 17:56:34,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387331214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:34,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:34,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:34,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775995903] [2023-12-16 17:56:34,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:34,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:34,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:34,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:34,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:34,124 INFO L87 Difference]: Start difference. First operand 165 states and 247 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:34,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:34,220 INFO L93 Difference]: Finished difference Result 345 states and 526 transitions. [2023-12-16 17:56:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:34,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2023-12-16 17:56:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:34,222 INFO L225 Difference]: With dead ends: 345 [2023-12-16 17:56:34,222 INFO L226 Difference]: Without dead ends: 196 [2023-12-16 17:56:34,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:34,223 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 322 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:34,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 616 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:34,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-16 17:56:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2023-12-16 17:56:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 156 states have internal predecessors, (232), 30 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 17:56:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 292 transitions. [2023-12-16 17:56:34,234 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 292 transitions. Word has length 48 [2023-12-16 17:56:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:34,234 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 292 transitions. [2023-12-16 17:56:34,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 292 transitions. [2023-12-16 17:56:34,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-16 17:56:34,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:34,236 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:34,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 17:56:34,438 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 [2023-12-16 17:56:34,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:34,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:34,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1857821022, now seen corresponding path program 1 times [2023-12-16 17:56:34,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:34,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898447825] [2023-12-16 17:56:34,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:34,439 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 [2023-12-16 17:56:34,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:34,465 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) [2023-12-16 17:56:34,467 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 [2023-12-16 17:56:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:34,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:34,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:34,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:34,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:34,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898447825] [2023-12-16 17:56:34,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898447825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:34,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:34,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:34,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549883498] [2023-12-16 17:56:34,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:34,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:34,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:34,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:34,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:34,584 INFO L87 Difference]: Start difference. First operand 195 states and 292 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:34,681 INFO L93 Difference]: Finished difference Result 346 states and 525 transitions. [2023-12-16 17:56:34,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:34,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2023-12-16 17:56:34,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:34,683 INFO L225 Difference]: With dead ends: 346 [2023-12-16 17:56:34,684 INFO L226 Difference]: Without dead ends: 197 [2023-12-16 17:56:34,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:34,685 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 319 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:34,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 618 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-16 17:56:34,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2023-12-16 17:56:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 157 states have (on average 1.4777070063694266) internal successors, (232), 157 states have internal predecessors, (232), 30 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 17:56:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 292 transitions. [2023-12-16 17:56:34,696 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 292 transitions. Word has length 49 [2023-12-16 17:56:34,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:34,697 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 292 transitions. [2023-12-16 17:56:34,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:34,697 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 292 transitions. [2023-12-16 17:56:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 17:56:34,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:34,698 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:34,700 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 [2023-12-16 17:56:34,900 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 [2023-12-16 17:56:34,900 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:34,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:34,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1061554795, now seen corresponding path program 1 times [2023-12-16 17:56:34,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:34,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044184904] [2023-12-16 17:56:34,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:34,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:34,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:34,902 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) [2023-12-16 17:56:34,903 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 [2023-12-16 17:56:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:34,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:34,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:35,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:35,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:35,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044184904] [2023-12-16 17:56:35,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044184904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:35,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:35,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:35,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132485713] [2023-12-16 17:56:35,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:35,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:35,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:35,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:35,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:35,012 INFO L87 Difference]: Start difference. First operand 196 states and 292 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:35,078 INFO L93 Difference]: Finished difference Result 509 states and 768 transitions. [2023-12-16 17:56:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:35,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2023-12-16 17:56:35,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:35,082 INFO L225 Difference]: With dead ends: 509 [2023-12-16 17:56:35,082 INFO L226 Difference]: Without dead ends: 360 [2023-12-16 17:56:35,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:35,084 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 197 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:35,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 474 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-12-16 17:56:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 357. [2023-12-16 17:56:35,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 281 states have (on average 1.4839857651245552) internal successors, (417), 282 states have internal predecessors, (417), 59 states have call successors, (59), 16 states have call predecessors, (59), 16 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 17:56:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 535 transitions. [2023-12-16 17:56:35,114 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 535 transitions. Word has length 52 [2023-12-16 17:56:35,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:35,114 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 535 transitions. [2023-12-16 17:56:35,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:35,114 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 535 transitions. [2023-12-16 17:56:35,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 17:56:35,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:35,115 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:35,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 17:56:35,318 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 [2023-12-16 17:56:35,318 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:35,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:35,319 INFO L85 PathProgramCache]: Analyzing trace with hash -131491451, now seen corresponding path program 1 times [2023-12-16 17:56:35,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:35,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21602293] [2023-12-16 17:56:35,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:35,319 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 [2023-12-16 17:56:35,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:35,320 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) [2023-12-16 17:56:35,351 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 [2023-12-16 17:56:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:35,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:35,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:35,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:35,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:35,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21602293] [2023-12-16 17:56:35,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21602293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:35,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:35,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:35,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734863791] [2023-12-16 17:56:35,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:35,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:35,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:35,419 INFO L87 Difference]: Start difference. First operand 357 states and 535 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:35,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:35,472 INFO L93 Difference]: Finished difference Result 935 states and 1407 transitions. [2023-12-16 17:56:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:35,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 53 [2023-12-16 17:56:35,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:35,475 INFO L225 Difference]: With dead ends: 935 [2023-12-16 17:56:35,475 INFO L226 Difference]: Without dead ends: 648 [2023-12-16 17:56:35,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:35,476 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 193 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:35,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 489 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:35,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2023-12-16 17:56:35,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 636. [2023-12-16 17:56:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 486 states have (on average 1.4670781893004115) internal successors, (713), 489 states have internal predecessors, (713), 117 states have call successors, (117), 32 states have call predecessors, (117), 32 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2023-12-16 17:56:35,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 947 transitions. [2023-12-16 17:56:35,514 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 947 transitions. Word has length 53 [2023-12-16 17:56:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:35,514 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 947 transitions. [2023-12-16 17:56:35,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 947 transitions. [2023-12-16 17:56:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 17:56:35,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:35,515 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:35,530 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 [2023-12-16 17:56:35,718 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 [2023-12-16 17:56:35,718 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:35,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:35,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1411355129, now seen corresponding path program 1 times [2023-12-16 17:56:35,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:35,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498203216] [2023-12-16 17:56:35,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:35,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:35,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:35,721 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) [2023-12-16 17:56:35,726 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 [2023-12-16 17:56:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:35,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:35,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 17:56:35,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:35,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:35,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498203216] [2023-12-16 17:56:35,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498203216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:35,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:35,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:56:35,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775891995] [2023-12-16 17:56:35,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:35,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:35,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:35,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:35,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:35,808 INFO L87 Difference]: Start difference. First operand 636 states and 947 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:56:35,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:35,862 INFO L93 Difference]: Finished difference Result 1071 states and 1610 transitions. [2023-12-16 17:56:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:35,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2023-12-16 17:56:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:35,864 INFO L225 Difference]: With dead ends: 1071 [2023-12-16 17:56:35,864 INFO L226 Difference]: Without dead ends: 496 [2023-12-16 17:56:35,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:35,866 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 2 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:35,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 932 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-16 17:56:35,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2023-12-16 17:56:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 383 states have (on average 1.4647519582245432) internal successors, (561), 385 states have internal predecessors, (561), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:56:35,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 737 transitions. [2023-12-16 17:56:35,891 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 737 transitions. Word has length 53 [2023-12-16 17:56:35,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:35,891 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 737 transitions. [2023-12-16 17:56:35,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:56:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 737 transitions. [2023-12-16 17:56:35,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 17:56:35,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:35,892 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:35,908 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:36,111 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 [2023-12-16 17:56:36,112 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:36,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:36,112 INFO L85 PathProgramCache]: Analyzing trace with hash 149066056, now seen corresponding path program 1 times [2023-12-16 17:56:36,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:36,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352350457] [2023-12-16 17:56:36,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:36,113 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 [2023-12-16 17:56:36,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:36,114 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) [2023-12-16 17:56:36,124 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 [2023-12-16 17:56:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:36,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:36,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:36,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:36,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:36,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352350457] [2023-12-16 17:56:36,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352350457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:36,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:36,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:36,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277874087] [2023-12-16 17:56:36,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:36,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:36,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:36,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:36,198 INFO L87 Difference]: Start difference. First operand 496 states and 737 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:56:36,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:36,256 INFO L93 Difference]: Finished difference Result 931 states and 1397 transitions. [2023-12-16 17:56:36,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:36,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2023-12-16 17:56:36,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:36,259 INFO L225 Difference]: With dead ends: 931 [2023-12-16 17:56:36,259 INFO L226 Difference]: Without dead ends: 517 [2023-12-16 17:56:36,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:36,260 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 7 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:36,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 702 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:36,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-16 17:56:36,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 511. [2023-12-16 17:56:36,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 395 states have (on average 1.450632911392405) internal successors, (573), 397 states have internal predecessors, (573), 88 states have call successors, (88), 27 states have call predecessors, (88), 27 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:56:36,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 749 transitions. [2023-12-16 17:56:36,282 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 749 transitions. Word has length 54 [2023-12-16 17:56:36,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:36,283 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 749 transitions. [2023-12-16 17:56:36,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:56:36,283 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 749 transitions. [2023-12-16 17:56:36,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 17:56:36,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:36,284 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:36,290 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 [2023-12-16 17:56:36,486 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 [2023-12-16 17:56:36,486 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:36,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:36,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2025324078, now seen corresponding path program 1 times [2023-12-16 17:56:36,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:36,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72694422] [2023-12-16 17:56:36,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:36,488 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 [2023-12-16 17:56:36,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:36,490 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) [2023-12-16 17:56:36,495 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 [2023-12-16 17:56:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:36,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:36,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:36,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:36,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:36,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72694422] [2023-12-16 17:56:36,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72694422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:36,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:36,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:36,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454463308] [2023-12-16 17:56:36,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:36,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:36,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:36,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:36,582 INFO L87 Difference]: Start difference. First operand 511 states and 749 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:36,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:36,644 INFO L93 Difference]: Finished difference Result 961 states and 1436 transitions. [2023-12-16 17:56:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:36,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 62 [2023-12-16 17:56:36,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:36,648 INFO L225 Difference]: With dead ends: 961 [2023-12-16 17:56:36,648 INFO L226 Difference]: Without dead ends: 532 [2023-12-16 17:56:36,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:36,649 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 7 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:36,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 694 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:36,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-16 17:56:36,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 526. [2023-12-16 17:56:36,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 407 states have (on average 1.4373464373464373) internal successors, (585), 409 states have internal predecessors, (585), 88 states have call successors, (88), 30 states have call predecessors, (88), 30 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:56:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 761 transitions. [2023-12-16 17:56:36,678 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 761 transitions. Word has length 62 [2023-12-16 17:56:36,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:36,678 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 761 transitions. [2023-12-16 17:56:36,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 761 transitions. [2023-12-16 17:56:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:56:36,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:36,679 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:36,684 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 (11)] Ended with exit code 0 [2023-12-16 17:56:36,882 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 [2023-12-16 17:56:36,882 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:36,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:36,883 INFO L85 PathProgramCache]: Analyzing trace with hash 518613944, now seen corresponding path program 1 times [2023-12-16 17:56:36,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:36,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39087598] [2023-12-16 17:56:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:36,883 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 [2023-12-16 17:56:36,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:36,885 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) [2023-12-16 17:56:36,893 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 [2023-12-16 17:56:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:36,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:36,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:36,977 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:36,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:36,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:36,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39087598] [2023-12-16 17:56:36,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39087598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:36,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:36,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:36,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226196961] [2023-12-16 17:56:36,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:36,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:36,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:36,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:36,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:36,979 INFO L87 Difference]: Start difference. First operand 526 states and 761 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 17:56:37,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:37,046 INFO L93 Difference]: Finished difference Result 988 states and 1442 transitions. [2023-12-16 17:56:37,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:37,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2023-12-16 17:56:37,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:37,049 INFO L225 Difference]: With dead ends: 988 [2023-12-16 17:56:37,049 INFO L226 Difference]: Without dead ends: 544 [2023-12-16 17:56:37,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:37,051 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 6 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:37,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 694 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-12-16 17:56:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 538. [2023-12-16 17:56:37,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 416 states have (on average 1.4278846153846154) internal successors, (594), 418 states have internal predecessors, (594), 88 states have call successors, (88), 33 states have call predecessors, (88), 33 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:56:37,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 770 transitions. [2023-12-16 17:56:37,075 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 770 transitions. Word has length 70 [2023-12-16 17:56:37,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:37,075 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 770 transitions. [2023-12-16 17:56:37,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 17:56:37,075 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 770 transitions. [2023-12-16 17:56:37,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:56:37,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:37,076 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:37,081 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 [2023-12-16 17:56:37,278 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 [2023-12-16 17:56:37,279 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:37,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:37,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1379894049, now seen corresponding path program 1 times [2023-12-16 17:56:37,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:37,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22397316] [2023-12-16 17:56:37,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:37,280 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 [2023-12-16 17:56:37,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:37,281 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) [2023-12-16 17:56:37,292 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 [2023-12-16 17:56:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:37,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:37,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:37,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:37,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:37,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22397316] [2023-12-16 17:56:37,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22397316] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:37,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:37,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:37,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204981451] [2023-12-16 17:56:37,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:37,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:37,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:37,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:37,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:37,546 INFO L87 Difference]: Start difference. First operand 538 states and 770 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:56:37,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:37,751 INFO L93 Difference]: Finished difference Result 1557 states and 2262 transitions. [2023-12-16 17:56:37,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:37,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 70 [2023-12-16 17:56:37,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:37,756 INFO L225 Difference]: With dead ends: 1557 [2023-12-16 17:56:37,757 INFO L226 Difference]: Without dead ends: 1101 [2023-12-16 17:56:37,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:37,758 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 336 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:37,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1336 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:37,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2023-12-16 17:56:37,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 679. [2023-12-16 17:56:37,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 519 states have (on average 1.418111753371869) internal successors, (736), 522 states have internal predecessors, (736), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 112 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 17:56:37,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 966 transitions. [2023-12-16 17:56:37,794 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 966 transitions. Word has length 70 [2023-12-16 17:56:37,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:37,794 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 966 transitions. [2023-12-16 17:56:37,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:56:37,795 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 966 transitions. [2023-12-16 17:56:37,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:56:37,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:37,795 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:37,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-16 17:56:37,998 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 [2023-12-16 17:56:37,998 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:37,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:37,998 INFO L85 PathProgramCache]: Analyzing trace with hash -513845617, now seen corresponding path program 1 times [2023-12-16 17:56:37,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:37,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813056778] [2023-12-16 17:56:37,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:37,999 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 [2023-12-16 17:56:37,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:38,000 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) [2023-12-16 17:56:38,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:56:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:38,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:38,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:38,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:38,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:38,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813056778] [2023-12-16 17:56:38,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813056778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:38,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:38,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:38,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706313713] [2023-12-16 17:56:38,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:38,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:38,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:38,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:38,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:38,086 INFO L87 Difference]: Start difference. First operand 679 states and 966 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:38,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:38,161 INFO L93 Difference]: Finished difference Result 1273 states and 1848 transitions. [2023-12-16 17:56:38,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:38,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2023-12-16 17:56:38,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:38,164 INFO L225 Difference]: With dead ends: 1273 [2023-12-16 17:56:38,164 INFO L226 Difference]: Without dead ends: 707 [2023-12-16 17:56:38,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:38,165 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 7 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:38,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 694 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-12-16 17:56:38,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 699. [2023-12-16 17:56:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 535 states have (on average 1.405607476635514) internal successors, (752), 538 states have internal predecessors, (752), 115 states have call successors, (115), 48 states have call predecessors, (115), 48 states have return successors, (115), 112 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 17:56:38,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 982 transitions. [2023-12-16 17:56:38,194 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 982 transitions. Word has length 77 [2023-12-16 17:56:38,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:38,194 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 982 transitions. [2023-12-16 17:56:38,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 982 transitions. [2023-12-16 17:56:38,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:56:38,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:38,195 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:38,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:38,398 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 [2023-12-16 17:56:38,398 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:38,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash -954753383, now seen corresponding path program 1 times [2023-12-16 17:56:38,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:38,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524049829] [2023-12-16 17:56:38,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:38,399 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 [2023-12-16 17:56:38,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:38,401 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) [2023-12-16 17:56:38,401 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 [2023-12-16 17:56:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:38,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:38,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:38,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:38,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:38,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524049829] [2023-12-16 17:56:38,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524049829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:38,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:38,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:38,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810702984] [2023-12-16 17:56:38,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:38,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:38,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:38,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:38,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:38,495 INFO L87 Difference]: Start difference. First operand 699 states and 982 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 17:56:38,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:38,551 INFO L93 Difference]: Finished difference Result 1306 states and 1851 transitions. [2023-12-16 17:56:38,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:38,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 85 [2023-12-16 17:56:38,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:38,555 INFO L225 Difference]: With dead ends: 1306 [2023-12-16 17:56:38,555 INFO L226 Difference]: Without dead ends: 723 [2023-12-16 17:56:38,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:38,557 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 6 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:38,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 694 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-12-16 17:56:38,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 715. [2023-12-16 17:56:38,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 547 states have (on average 1.396709323583181) internal successors, (764), 550 states have internal predecessors, (764), 115 states have call successors, (115), 52 states have call predecessors, (115), 52 states have return successors, (115), 112 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 17:56:38,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 994 transitions. [2023-12-16 17:56:38,586 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 994 transitions. Word has length 85 [2023-12-16 17:56:38,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:38,587 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 994 transitions. [2023-12-16 17:56:38,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 17:56:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 994 transitions. [2023-12-16 17:56:38,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:56:38,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:38,588 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:56:38,592 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 [2023-12-16 17:56:38,790 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 [2023-12-16 17:56:38,791 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:38,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:38,791 INFO L85 PathProgramCache]: Analyzing trace with hash -144904749, now seen corresponding path program 1 times [2023-12-16 17:56:38,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:38,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138477648] [2023-12-16 17:56:38,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:38,791 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 [2023-12-16 17:56:38,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:38,793 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) [2023-12-16 17:56:38,795 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 [2023-12-16 17:56:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:38,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:38,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:56:38,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 17:56:39,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:39,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138477648] [2023-12-16 17:56:39,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138477648] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:39,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:39,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-12-16 17:56:39,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631563220] [2023-12-16 17:56:39,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:39,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:56:39,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:39,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:56:39,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:39,022 INFO L87 Difference]: Start difference. First operand 715 states and 994 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:39,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:39,305 INFO L93 Difference]: Finished difference Result 1464 states and 2081 transitions. [2023-12-16 17:56:39,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:39,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 86 [2023-12-16 17:56:39,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:39,310 INFO L225 Difference]: With dead ends: 1464 [2023-12-16 17:56:39,311 INFO L226 Difference]: Without dead ends: 873 [2023-12-16 17:56:39,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:39,314 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 302 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:39,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 2044 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:39,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-16 17:56:39,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 715. [2023-12-16 17:56:39,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 547 states have (on average 1.3948811700182815) internal successors, (763), 550 states have internal predecessors, (763), 115 states have call successors, (115), 52 states have call predecessors, (115), 52 states have return successors, (115), 112 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 17:56:39,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 993 transitions. [2023-12-16 17:56:39,347 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 993 transitions. Word has length 86 [2023-12-16 17:56:39,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:39,347 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 993 transitions. [2023-12-16 17:56:39,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:39,348 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 993 transitions. [2023-12-16 17:56:39,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 17:56:39,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:39,348 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:39,372 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 (16)] Ended with exit code 0 [2023-12-16 17:56:39,551 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 [2023-12-16 17:56:39,552 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:39,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:39,552 INFO L85 PathProgramCache]: Analyzing trace with hash 54876287, now seen corresponding path program 1 times [2023-12-16 17:56:39,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:39,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141508586] [2023-12-16 17:56:39,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:39,552 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 [2023-12-16 17:56:39,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:39,553 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) [2023-12-16 17:56:39,557 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 [2023-12-16 17:56:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:39,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:39,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:56:39,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:39,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:39,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141508586] [2023-12-16 17:56:39,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141508586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:39,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:39,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:39,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310281679] [2023-12-16 17:56:39,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:39,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:39,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:39,718 INFO L87 Difference]: Start difference. First operand 715 states and 993 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:40,113 INFO L93 Difference]: Finished difference Result 1700 states and 2429 transitions. [2023-12-16 17:56:40,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:40,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2023-12-16 17:56:40,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:40,117 INFO L225 Difference]: With dead ends: 1700 [2023-12-16 17:56:40,117 INFO L226 Difference]: Without dead ends: 1103 [2023-12-16 17:56:40,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:40,119 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 535 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:40,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 1475 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:56:40,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2023-12-16 17:56:40,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 842. [2023-12-16 17:56:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 635 states have (on average 1.3763779527559055) internal successors, (874), 639 states have internal predecessors, (874), 142 states have call successors, (142), 64 states have call predecessors, (142), 64 states have return successors, (142), 138 states have call predecessors, (142), 142 states have call successors, (142) [2023-12-16 17:56:40,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1158 transitions. [2023-12-16 17:56:40,164 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1158 transitions. Word has length 90 [2023-12-16 17:56:40,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:40,165 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1158 transitions. [2023-12-16 17:56:40,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:40,165 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1158 transitions. [2023-12-16 17:56:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:56:40,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:40,166 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:40,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-16 17:56:40,368 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 [2023-12-16 17:56:40,369 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:40,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:40,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1355276720, now seen corresponding path program 1 times [2023-12-16 17:56:40,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:40,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116525910] [2023-12-16 17:56:40,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:40,370 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 [2023-12-16 17:56:40,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:40,371 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) [2023-12-16 17:56:40,377 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 [2023-12-16 17:56:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:40,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:40,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:56:40,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:40,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:40,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116525910] [2023-12-16 17:56:40,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116525910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:40,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:40,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:40,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873947927] [2023-12-16 17:56:40,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:40,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:40,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:40,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:40,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:40,522 INFO L87 Difference]: Start difference. First operand 842 states and 1158 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:40,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:40,953 INFO L93 Difference]: Finished difference Result 1806 states and 2555 transitions. [2023-12-16 17:56:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:40,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2023-12-16 17:56:40,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:40,960 INFO L225 Difference]: With dead ends: 1806 [2023-12-16 17:56:40,960 INFO L226 Difference]: Without dead ends: 1209 [2023-12-16 17:56:40,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:40,962 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 397 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:40,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 2054 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:56:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2023-12-16 17:56:41,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 957. [2023-12-16 17:56:41,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 715 states have (on average 1.3608391608391608) internal successors, (973), 720 states have internal predecessors, (973), 165 states have call successors, (165), 76 states have call predecessors, (165), 76 states have return successors, (165), 160 states have call predecessors, (165), 165 states have call successors, (165) [2023-12-16 17:56:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1303 transitions. [2023-12-16 17:56:41,025 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1303 transitions. Word has length 91 [2023-12-16 17:56:41,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:41,025 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1303 transitions. [2023-12-16 17:56:41,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:41,025 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1303 transitions. [2023-12-16 17:56:41,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:56:41,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:41,028 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:41,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:41,240 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 [2023-12-16 17:56:41,240 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:41,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:41,241 INFO L85 PathProgramCache]: Analyzing trace with hash -685599954, now seen corresponding path program 1 times [2023-12-16 17:56:41,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:41,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802217028] [2023-12-16 17:56:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:41,241 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 [2023-12-16 17:56:41,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:41,242 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) [2023-12-16 17:56:41,243 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 [2023-12-16 17:56:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:41,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:41,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 17:56:41,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:41,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:41,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802217028] [2023-12-16 17:56:41,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802217028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:41,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:41,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:41,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310746981] [2023-12-16 17:56:41,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:41,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:41,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:41,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:41,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:41,402 INFO L87 Difference]: Start difference. First operand 957 states and 1303 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:41,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:41,736 INFO L93 Difference]: Finished difference Result 1875 states and 2589 transitions. [2023-12-16 17:56:41,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:41,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 93 [2023-12-16 17:56:41,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:41,740 INFO L225 Difference]: With dead ends: 1875 [2023-12-16 17:56:41,740 INFO L226 Difference]: Without dead ends: 1066 [2023-12-16 17:56:41,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:41,742 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 536 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:41,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1231 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:41,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2023-12-16 17:56:41,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 957. [2023-12-16 17:56:41,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 715 states have (on average 1.3524475524475525) internal successors, (967), 720 states have internal predecessors, (967), 165 states have call successors, (165), 76 states have call predecessors, (165), 76 states have return successors, (165), 160 states have call predecessors, (165), 165 states have call successors, (165) [2023-12-16 17:56:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1297 transitions. [2023-12-16 17:56:41,810 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1297 transitions. Word has length 93 [2023-12-16 17:56:41,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:41,810 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1297 transitions. [2023-12-16 17:56:41,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1297 transitions. [2023-12-16 17:56:41,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:56:41,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:41,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:41,814 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 [2023-12-16 17:56:42,014 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 [2023-12-16 17:56:42,016 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:42,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:42,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1092770635, now seen corresponding path program 1 times [2023-12-16 17:56:42,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:42,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485080281] [2023-12-16 17:56:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:42,017 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 [2023-12-16 17:56:42,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:42,018 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) [2023-12-16 17:56:42,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:56:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:42,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:42,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:42,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:42,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:42,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:42,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485080281] [2023-12-16 17:56:42,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485080281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:42,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:42,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:42,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893228530] [2023-12-16 17:56:42,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:42,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:42,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:42,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:42,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:42,213 INFO L87 Difference]: Start difference. First operand 957 states and 1297 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:42,370 INFO L93 Difference]: Finished difference Result 2312 states and 3149 transitions. [2023-12-16 17:56:42,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:42,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2023-12-16 17:56:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:42,377 INFO L225 Difference]: With dead ends: 2312 [2023-12-16 17:56:42,377 INFO L226 Difference]: Without dead ends: 1728 [2023-12-16 17:56:42,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:42,378 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 157 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:42,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 744 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:42,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2023-12-16 17:56:42,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1643. [2023-12-16 17:56:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1218 states have (on average 1.341543513957307) internal successors, (1634), 1228 states have internal predecessors, (1634), 290 states have call successors, (290), 134 states have call predecessors, (290), 134 states have return successors, (290), 280 states have call predecessors, (290), 290 states have call successors, (290) [2023-12-16 17:56:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2214 transitions. [2023-12-16 17:56:42,505 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2214 transitions. Word has length 92 [2023-12-16 17:56:42,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:42,505 INFO L495 AbstractCegarLoop]: Abstraction has 1643 states and 2214 transitions. [2023-12-16 17:56:42,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:42,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2214 transitions. [2023-12-16 17:56:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:42,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:42,507 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:42,510 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 [2023-12-16 17:56:42,710 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 [2023-12-16 17:56:42,710 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:42,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:42,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1061310371, now seen corresponding path program 1 times [2023-12-16 17:56:42,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:42,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599049966] [2023-12-16 17:56:42,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:42,711 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 [2023-12-16 17:56:42,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:42,716 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) [2023-12-16 17:56:42,773 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 [2023-12-16 17:56:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:42,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:42,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:42,918 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:56:42,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:43,001 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:56:43,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:43,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599049966] [2023-12-16 17:56:43,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599049966] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:43,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:43,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:43,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117661660] [2023-12-16 17:56:43,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:43,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:43,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:43,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:43,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:43,003 INFO L87 Difference]: Start difference. First operand 1643 states and 2214 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:43,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:43,278 INFO L93 Difference]: Finished difference Result 3076 states and 4173 transitions. [2023-12-16 17:56:43,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:43,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-12-16 17:56:43,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,284 INFO L225 Difference]: With dead ends: 3076 [2023-12-16 17:56:43,284 INFO L226 Difference]: Without dead ends: 1864 [2023-12-16 17:56:43,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:43,287 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 223 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1874 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:43,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2023-12-16 17:56:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1643. [2023-12-16 17:56:43,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1218 states have (on average 1.3374384236453203) internal successors, (1629), 1228 states have internal predecessors, (1629), 290 states have call successors, (290), 134 states have call predecessors, (290), 134 states have return successors, (290), 280 states have call predecessors, (290), 290 states have call successors, (290) [2023-12-16 17:56:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2209 transitions. [2023-12-16 17:56:43,416 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2209 transitions. Word has length 94 [2023-12-16 17:56:43,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:43,416 INFO L495 AbstractCegarLoop]: Abstraction has 1643 states and 2209 transitions. [2023-12-16 17:56:43,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:43,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2209 transitions. [2023-12-16 17:56:43,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:43,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:43,417 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:43,420 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 [2023-12-16 17:56:43,620 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 [2023-12-16 17:56:43,620 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:43,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:43,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1350470272, now seen corresponding path program 1 times [2023-12-16 17:56:43,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:43,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052006814] [2023-12-16 17:56:43,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:43,621 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 [2023-12-16 17:56:43,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:43,622 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) [2023-12-16 17:56:43,650 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 [2023-12-16 17:56:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:43,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:43,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:43,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:43,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:43,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:43,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052006814] [2023-12-16 17:56:43,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052006814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:43,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:43,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:43,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605574030] [2023-12-16 17:56:43,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:43,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:43,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:43,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:43,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:43,777 INFO L87 Difference]: Start difference. First operand 1643 states and 2209 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:43,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:43,978 INFO L93 Difference]: Finished difference Result 3802 states and 5141 transitions. [2023-12-16 17:56:43,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:43,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-12-16 17:56:43,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,986 INFO L225 Difference]: With dead ends: 3802 [2023-12-16 17:56:43,986 INFO L226 Difference]: Without dead ends: 2651 [2023-12-16 17:56:43,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:43,988 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 166 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1068 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2023-12-16 17:56:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2530. [2023-12-16 17:56:44,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 1866 states have (on average 1.3258306538049303) internal successors, (2474), 1882 states have internal predecessors, (2474), 454 states have call successors, (454), 209 states have call predecessors, (454), 209 states have return successors, (454), 438 states have call predecessors, (454), 454 states have call successors, (454) [2023-12-16 17:56:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3382 transitions. [2023-12-16 17:56:44,213 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3382 transitions. Word has length 94 [2023-12-16 17:56:44,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:44,213 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 3382 transitions. [2023-12-16 17:56:44,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:44,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3382 transitions. [2023-12-16 17:56:44,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:44,216 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:44,216 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:44,218 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 (22)] Ended with exit code 0 [2023-12-16 17:56:44,418 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 [2023-12-16 17:56:44,418 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:44,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:44,418 INFO L85 PathProgramCache]: Analyzing trace with hash -615930275, now seen corresponding path program 1 times [2023-12-16 17:56:44,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:44,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996476969] [2023-12-16 17:56:44,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:44,419 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 [2023-12-16 17:56:44,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:44,420 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) [2023-12-16 17:56:44,420 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 [2023-12-16 17:56:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:44,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:44,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996476969] [2023-12-16 17:56:44,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996476969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:44,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592818403] [2023-12-16 17:56:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:44,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:44,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:44,565 INFO L87 Difference]: Start difference. First operand 2530 states and 3382 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:44,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:44,798 INFO L93 Difference]: Finished difference Result 4297 states and 5756 transitions. [2023-12-16 17:56:44,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:44,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-12-16 17:56:44,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:44,805 INFO L225 Difference]: With dead ends: 4297 [2023-12-16 17:56:44,805 INFO L226 Difference]: Without dead ends: 2086 [2023-12-16 17:56:44,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:44,810 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 321 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:44,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 625 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:44,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2023-12-16 17:56:44,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 2086. [2023-12-16 17:56:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2086 states, 1539 states have (on average 1.3255360623781676) internal successors, (2040), 1552 states have internal predecessors, (2040), 370 states have call successors, (370), 176 states have call predecessors, (370), 176 states have return successors, (370), 357 states have call predecessors, (370), 370 states have call successors, (370) [2023-12-16 17:56:44,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 2780 transitions. [2023-12-16 17:56:44,967 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 2780 transitions. Word has length 94 [2023-12-16 17:56:44,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:44,967 INFO L495 AbstractCegarLoop]: Abstraction has 2086 states and 2780 transitions. [2023-12-16 17:56:44,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:44,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 2780 transitions. [2023-12-16 17:56:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:56:44,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:44,979 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:44,983 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 [2023-12-16 17:56:45,181 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 [2023-12-16 17:56:45,181 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:45,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:45,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1987748144, now seen corresponding path program 1 times [2023-12-16 17:56:45,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:45,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252461894] [2023-12-16 17:56:45,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:45,182 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 [2023-12-16 17:56:45,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:45,183 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) [2023-12-16 17:56:45,186 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 [2023-12-16 17:56:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:45,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:45,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:45,367 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:56:45,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:56:45,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:45,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252461894] [2023-12-16 17:56:45,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252461894] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:45,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:45,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:45,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202014842] [2023-12-16 17:56:45,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:45,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:45,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:45,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:45,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:45,456 INFO L87 Difference]: Start difference. First operand 2086 states and 2780 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:56:45,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:45,791 INFO L93 Difference]: Finished difference Result 4277 states and 5803 transitions. [2023-12-16 17:56:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:45,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2023-12-16 17:56:45,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:45,801 INFO L225 Difference]: With dead ends: 4277 [2023-12-16 17:56:45,802 INFO L226 Difference]: Without dead ends: 2447 [2023-12-16 17:56:45,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 186 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:45,805 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 207 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:45,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1605 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:45,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2023-12-16 17:56:45,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 1899. [2023-12-16 17:56:45,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1404 states have (on average 1.3247863247863247) internal successors, (1860), 1416 states have internal predecessors, (1860), 332 states have call successors, (332), 162 states have call predecessors, (332), 162 states have return successors, (332), 320 states have call predecessors, (332), 332 states have call successors, (332) [2023-12-16 17:56:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2524 transitions. [2023-12-16 17:56:45,993 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2524 transitions. Word has length 97 [2023-12-16 17:56:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:45,993 INFO L495 AbstractCegarLoop]: Abstraction has 1899 states and 2524 transitions. [2023-12-16 17:56:45,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:56:45,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2524 transitions. [2023-12-16 17:56:45,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:56:45,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:45,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:45,997 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 [2023-12-16 17:56:46,197 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 [2023-12-16 17:56:46,197 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:46,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash -58029957, now seen corresponding path program 1 times [2023-12-16 17:56:46,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:46,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352712398] [2023-12-16 17:56:46,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:46,199 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 [2023-12-16 17:56:46,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:46,200 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) [2023-12-16 17:56:46,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:56:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:46,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:46,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:46,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:46,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:46,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352712398] [2023-12-16 17:56:46,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352712398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:46,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:46,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:46,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61028846] [2023-12-16 17:56:46,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:46,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:46,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:46,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:46,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:46,342 INFO L87 Difference]: Start difference. First operand 1899 states and 2524 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:46,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:46,583 INFO L93 Difference]: Finished difference Result 3483 states and 4645 transitions. [2023-12-16 17:56:46,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:46,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2023-12-16 17:56:46,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:46,590 INFO L225 Difference]: With dead ends: 3483 [2023-12-16 17:56:46,590 INFO L226 Difference]: Without dead ends: 1751 [2023-12-16 17:56:46,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:46,594 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 288 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:46,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 626 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:46,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2023-12-16 17:56:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1751. [2023-12-16 17:56:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1292 states have (on average 1.3235294117647058) internal successors, (1710), 1303 states have internal predecessors, (1710), 307 states have call successors, (307), 151 states have call predecessors, (307), 151 states have return successors, (307), 296 states have call predecessors, (307), 307 states have call successors, (307) [2023-12-16 17:56:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2324 transitions. [2023-12-16 17:56:46,738 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2324 transitions. Word has length 97 [2023-12-16 17:56:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:46,739 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2324 transitions. [2023-12-16 17:56:46,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2324 transitions. [2023-12-16 17:56:46,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:56:46,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:46,740 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:46,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:46,943 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 [2023-12-16 17:56:46,943 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:46,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:46,944 INFO L85 PathProgramCache]: Analyzing trace with hash -724028851, now seen corresponding path program 1 times [2023-12-16 17:56:46,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:46,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985531372] [2023-12-16 17:56:46,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:46,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:46,950 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) [2023-12-16 17:56:46,951 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 [2023-12-16 17:56:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,056 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:47,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:47,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985531372] [2023-12-16 17:56:47,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985531372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:47,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:47,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:47,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979319716] [2023-12-16 17:56:47,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:47,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:47,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:47,057 INFO L87 Difference]: Start difference. First operand 1751 states and 2324 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-16 17:56:47,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:47,194 INFO L93 Difference]: Finished difference Result 3379 states and 4523 transitions. [2023-12-16 17:56:47,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:47,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 102 [2023-12-16 17:56:47,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:47,200 INFO L225 Difference]: With dead ends: 3379 [2023-12-16 17:56:47,200 INFO L226 Difference]: Without dead ends: 1847 [2023-12-16 17:56:47,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:47,203 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 8 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:47,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 699 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:47,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2023-12-16 17:56:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1823. [2023-12-16 17:56:47,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1823 states, 1352 states have (on average 1.3091715976331362) internal successors, (1770), 1363 states have internal predecessors, (1770), 307 states have call successors, (307), 163 states have call predecessors, (307), 163 states have return successors, (307), 296 states have call predecessors, (307), 307 states have call successors, (307) [2023-12-16 17:56:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2384 transitions. [2023-12-16 17:56:47,376 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2384 transitions. Word has length 102 [2023-12-16 17:56:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:47,376 INFO L495 AbstractCegarLoop]: Abstraction has 1823 states and 2384 transitions. [2023-12-16 17:56:47,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-16 17:56:47,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2384 transitions. [2023-12-16 17:56:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:56:47,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:47,377 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:47,379 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 [2023-12-16 17:56:47,579 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 [2023-12-16 17:56:47,580 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:47,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:47,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1745396138, now seen corresponding path program 1 times [2023-12-16 17:56:47,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:47,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154996918] [2023-12-16 17:56:47,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:47,581 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 [2023-12-16 17:56:47,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:47,581 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) [2023-12-16 17:56:47,583 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 [2023-12-16 17:56:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,833 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:56:47,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:47,930 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 17:56:47,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154996918] [2023-12-16 17:56:47,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154996918] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:47,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:47,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:47,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934700975] [2023-12-16 17:56:47,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:47,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:47,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:47,931 INFO L87 Difference]: Start difference. First operand 1823 states and 2384 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:56:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:48,232 INFO L93 Difference]: Finished difference Result 3664 states and 4865 transitions. [2023-12-16 17:56:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:48,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2023-12-16 17:56:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:48,252 INFO L225 Difference]: With dead ends: 3664 [2023-12-16 17:56:48,252 INFO L226 Difference]: Without dead ends: 2024 [2023-12-16 17:56:48,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:48,255 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 183 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:48,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1336 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:48,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2023-12-16 17:56:48,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 1802. [2023-12-16 17:56:48,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1337 states have (on average 1.3051608077786088) internal successors, (1745), 1348 states have internal predecessors, (1745), 301 states have call successors, (301), 163 states have call predecessors, (301), 163 states have return successors, (301), 290 states have call predecessors, (301), 301 states have call successors, (301) [2023-12-16 17:56:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2347 transitions. [2023-12-16 17:56:48,436 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2347 transitions. Word has length 105 [2023-12-16 17:56:48,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:48,436 INFO L495 AbstractCegarLoop]: Abstraction has 1802 states and 2347 transitions. [2023-12-16 17:56:48,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:56:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2347 transitions. [2023-12-16 17:56:48,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:56:48,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:48,437 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:48,457 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 [2023-12-16 17:56:48,640 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 [2023-12-16 17:56:48,640 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:48,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash 920566466, now seen corresponding path program 1 times [2023-12-16 17:56:48,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:48,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577879365] [2023-12-16 17:56:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:48,641 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 [2023-12-16 17:56:48,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:48,642 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) [2023-12-16 17:56:48,670 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 [2023-12-16 17:56:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:48,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:56:48,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 17:56:48,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:48,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:48,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577879365] [2023-12-16 17:56:48,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577879365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:48,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:48,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:56:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963737754] [2023-12-16 17:56:48,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:48,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:56:48,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:48,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:56:48,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:48,746 INFO L87 Difference]: Start difference. First operand 1802 states and 2347 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:56:49,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:49,009 INFO L93 Difference]: Finished difference Result 2569 states and 3545 transitions. [2023-12-16 17:56:49,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:56:49,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 108 [2023-12-16 17:56:49,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:49,016 INFO L225 Difference]: With dead ends: 2569 [2023-12-16 17:56:49,017 INFO L226 Difference]: Without dead ends: 2567 [2023-12-16 17:56:49,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:49,018 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 178 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:49,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1545 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:49,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2023-12-16 17:56:49,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 1797. [2023-12-16 17:56:49,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1330 states have (on average 1.306766917293233) internal successors, (1738), 1342 states have internal predecessors, (1738), 302 states have call successors, (302), 164 states have call predecessors, (302), 164 states have return successors, (302), 290 states have call predecessors, (302), 302 states have call successors, (302) [2023-12-16 17:56:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2342 transitions. [2023-12-16 17:56:49,230 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2342 transitions. Word has length 108 [2023-12-16 17:56:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:49,231 INFO L495 AbstractCegarLoop]: Abstraction has 1797 states and 2342 transitions. [2023-12-16 17:56:49,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:56:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2342 transitions. [2023-12-16 17:56:49,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 17:56:49,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:49,233 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:49,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:49,435 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 [2023-12-16 17:56:49,435 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:49,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:49,436 INFO L85 PathProgramCache]: Analyzing trace with hash 311450215, now seen corresponding path program 1 times [2023-12-16 17:56:49,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:49,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664288603] [2023-12-16 17:56:49,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:49,436 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 [2023-12-16 17:56:49,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:49,437 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) [2023-12-16 17:56:49,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 17:56:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:49,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:49,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:56:49,721 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 17:56:49,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:49,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664288603] [2023-12-16 17:56:49,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664288603] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:49,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:49,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-12-16 17:56:49,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001759480] [2023-12-16 17:56:49,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:49,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:49,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:49,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:49,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:49,921 INFO L87 Difference]: Start difference. First operand 1797 states and 2342 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:56:50,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:50,161 INFO L93 Difference]: Finished difference Result 3376 states and 4452 transitions. [2023-12-16 17:56:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:50,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2023-12-16 17:56:50,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:50,166 INFO L225 Difference]: With dead ends: 3376 [2023-12-16 17:56:50,166 INFO L226 Difference]: Without dead ends: 1801 [2023-12-16 17:56:50,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:56:50,169 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 145 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:50,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1369 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:50,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-12-16 17:56:50,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1595. [2023-12-16 17:56:50,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1186 states have (on average 1.2984822934232716) internal successors, (1540), 1197 states have internal predecessors, (1540), 264 states have call successors, (264), 144 states have call predecessors, (264), 144 states have return successors, (264), 253 states have call predecessors, (264), 264 states have call successors, (264) [2023-12-16 17:56:50,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2068 transitions. [2023-12-16 17:56:50,289 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2068 transitions. Word has length 111 [2023-12-16 17:56:50,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:50,289 INFO L495 AbstractCegarLoop]: Abstraction has 1595 states and 2068 transitions. [2023-12-16 17:56:50,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:56:50,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2068 transitions. [2023-12-16 17:56:50,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 17:56:50,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:50,291 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:50,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:50,494 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 [2023-12-16 17:56:50,494 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:50,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:50,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1140874525, now seen corresponding path program 1 times [2023-12-16 17:56:50,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:50,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567436662] [2023-12-16 17:56:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:50,495 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 [2023-12-16 17:56:50,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:50,496 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) [2023-12-16 17:56:50,507 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 [2023-12-16 17:56:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:50,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:56:50,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 72 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:50,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:56:51,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:51,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567436662] [2023-12-16 17:56:51,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567436662] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:51,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:51,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:56:51,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11882063] [2023-12-16 17:56:51,166 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:51,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:56:51,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:51,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:56:51,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:56:51,167 INFO L87 Difference]: Start difference. First operand 1595 states and 2068 transitions. Second operand has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:52,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:52,262 INFO L93 Difference]: Finished difference Result 3418 states and 4497 transitions. [2023-12-16 17:56:52,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 17:56:52,262 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 166 [2023-12-16 17:56:52,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:52,266 INFO L225 Difference]: With dead ends: 3418 [2023-12-16 17:56:52,267 INFO L226 Difference]: Without dead ends: 2053 [2023-12-16 17:56:52,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 327 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 17:56:52,269 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 1212 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:52,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 1627 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:52,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2023-12-16 17:56:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 1935. [2023-12-16 17:56:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1436 states have (on average 1.298050139275766) internal successors, (1864), 1449 states have internal predecessors, (1864), 319 states have call successors, (319), 179 states have call predecessors, (319), 179 states have return successors, (319), 306 states have call predecessors, (319), 319 states have call successors, (319) [2023-12-16 17:56:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2502 transitions. [2023-12-16 17:56:52,440 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2502 transitions. Word has length 166 [2023-12-16 17:56:52,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:52,441 INFO L495 AbstractCegarLoop]: Abstraction has 1935 states and 2502 transitions. [2023-12-16 17:56:52,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2502 transitions. [2023-12-16 17:56:52,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 17:56:52,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:52,444 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:52,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:52,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:52,648 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:52,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:52,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1542159296, now seen corresponding path program 1 times [2023-12-16 17:56:52,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:52,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281183642] [2023-12-16 17:56:52,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:52,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:52,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:52,650 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) [2023-12-16 17:56:52,652 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 [2023-12-16 17:56:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:52,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:56:52,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 72 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:53,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:53,291 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:56:53,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:53,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281183642] [2023-12-16 17:56:53,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281183642] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:53,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:53,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:56:53,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897488625] [2023-12-16 17:56:53,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:53,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:56:53,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:53,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:56:53,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:56:53,293 INFO L87 Difference]: Start difference. First operand 1935 states and 2502 transitions. Second operand has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:54,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:54,389 INFO L93 Difference]: Finished difference Result 3713 states and 4868 transitions. [2023-12-16 17:56:54,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-16 17:56:54,390 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 167 [2023-12-16 17:56:54,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:54,394 INFO L225 Difference]: With dead ends: 3713 [2023-12-16 17:56:54,394 INFO L226 Difference]: Without dead ends: 2019 [2023-12-16 17:56:54,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 325 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=770, Unknown=0, NotChecked=0, Total=992 [2023-12-16 17:56:54,397 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 766 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:54,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2888 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:56:54,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2023-12-16 17:56:54,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 1963. [2023-12-16 17:56:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1963 states, 1464 states have (on average 1.2971311475409837) internal successors, (1899), 1477 states have internal predecessors, (1899), 319 states have call successors, (319), 179 states have call predecessors, (319), 179 states have return successors, (319), 306 states have call predecessors, (319), 319 states have call successors, (319) [2023-12-16 17:56:54,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2537 transitions. [2023-12-16 17:56:54,615 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2537 transitions. Word has length 167 [2023-12-16 17:56:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:54,615 INFO L495 AbstractCegarLoop]: Abstraction has 1963 states and 2537 transitions. [2023-12-16 17:56:54,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2537 transitions. [2023-12-16 17:56:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 17:56:54,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:54,618 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:54,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:54,820 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 [2023-12-16 17:56:54,821 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:54,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:54,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2098524152, now seen corresponding path program 1 times [2023-12-16 17:56:54,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:54,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807060021] [2023-12-16 17:56:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:54,822 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 [2023-12-16 17:56:54,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:54,823 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) [2023-12-16 17:56:54,824 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 [2023-12-16 17:56:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:54,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:54,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:55,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:56:55,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:55,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807060021] [2023-12-16 17:56:55,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807060021] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:55,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:55,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-12-16 17:56:55,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694708059] [2023-12-16 17:56:55,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:55,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:56:55,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:55,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:56:55,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:56:55,188 INFO L87 Difference]: Start difference. First operand 1963 states and 2537 transitions. Second operand has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:55,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:55,754 INFO L93 Difference]: Finished difference Result 3857 states and 5056 transitions. [2023-12-16 17:56:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:56:55,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 168 [2023-12-16 17:56:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:55,758 INFO L225 Difference]: With dead ends: 3857 [2023-12-16 17:56:55,758 INFO L226 Difference]: Without dead ends: 2135 [2023-12-16 17:56:55,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:56:55,760 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1132 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:55,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 1243 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:56:55,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2023-12-16 17:56:55,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 2115. [2023-12-16 17:56:55,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2115 states, 1596 states have (on average 1.2963659147869675) internal successors, (2069), 1609 states have internal predecessors, (2069), 329 states have call successors, (329), 189 states have call predecessors, (329), 189 states have return successors, (329), 316 states have call predecessors, (329), 329 states have call successors, (329) [2023-12-16 17:56:55,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 2727 transitions. [2023-12-16 17:56:55,980 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 2727 transitions. Word has length 168 [2023-12-16 17:56:55,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:55,981 INFO L495 AbstractCegarLoop]: Abstraction has 2115 states and 2727 transitions. [2023-12-16 17:56:55,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 2727 transitions. [2023-12-16 17:56:55,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 17:56:55,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:55,983 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:56,002 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 [2023-12-16 17:56:56,186 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 [2023-12-16 17:56:56,186 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:56,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1886376383, now seen corresponding path program 1 times [2023-12-16 17:56:56,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:56,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837005575] [2023-12-16 17:56:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:56,187 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 [2023-12-16 17:56:56,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:56,188 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) [2023-12-16 17:56:56,218 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 [2023-12-16 17:56:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:56,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:56:56,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 62 proven. 21 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:56,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:56:56,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:56,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837005575] [2023-12-16 17:56:56,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837005575] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:56,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:56,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-16 17:56:56,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111123157] [2023-12-16 17:56:56,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:56,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 17:56:56,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:56,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 17:56:56,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:56:56,694 INFO L87 Difference]: Start difference. First operand 2115 states and 2727 transitions. Second operand has 13 states, 13 states have (on average 15.846153846153847) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:57,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:57,717 INFO L93 Difference]: Finished difference Result 4474 states and 5852 transitions. [2023-12-16 17:56:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 17:56:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 15.846153846153847) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 169 [2023-12-16 17:56:57,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:57,723 INFO L225 Difference]: With dead ends: 4474 [2023-12-16 17:56:57,723 INFO L226 Difference]: Without dead ends: 2600 [2023-12-16 17:56:57,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2023-12-16 17:56:57,726 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 1222 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:57,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 1614 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:57,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2023-12-16 17:56:58,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2578. [2023-12-16 17:56:58,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 1979 states have (on average 1.2996462860030318) internal successors, (2572), 1992 states have internal predecessors, (2572), 374 states have call successors, (374), 224 states have call predecessors, (374), 224 states have return successors, (374), 361 states have call predecessors, (374), 374 states have call successors, (374) [2023-12-16 17:56:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3320 transitions. [2023-12-16 17:56:58,028 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3320 transitions. Word has length 169 [2023-12-16 17:56:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:58,028 INFO L495 AbstractCegarLoop]: Abstraction has 2578 states and 3320 transitions. [2023-12-16 17:56:58,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.846153846153847) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:58,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3320 transitions. [2023-12-16 17:56:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-16 17:56:58,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:58,033 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:58,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:58,236 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 [2023-12-16 17:56:58,236 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:58,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:58,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1066356164, now seen corresponding path program 1 times [2023-12-16 17:56:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748682085] [2023-12-16 17:56:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:58,237 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 [2023-12-16 17:56:58,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:58,238 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) [2023-12-16 17:56:58,239 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 [2023-12-16 17:56:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:58,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:58,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:58,432 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:56:58,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:58,511 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-16 17:56:58,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:58,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748682085] [2023-12-16 17:56:58,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748682085] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:58,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:58,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-12-16 17:56:58,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298705878] [2023-12-16 17:56:58,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:58,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:56:58,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:58,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:56:58,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:58,512 INFO L87 Difference]: Start difference. First operand 2578 states and 3320 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-16 17:56:59,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:59,012 INFO L93 Difference]: Finished difference Result 5333 states and 7006 transitions. [2023-12-16 17:56:59,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:59,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 173 [2023-12-16 17:56:59,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:59,026 INFO L225 Difference]: With dead ends: 5333 [2023-12-16 17:56:59,026 INFO L226 Difference]: Without dead ends: 2951 [2023-12-16 17:56:59,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 338 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:59,031 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 150 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:59,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2034 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:59,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2023-12-16 17:56:59,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2578. [2023-12-16 17:56:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 1979 states have (on average 1.2986356745831227) internal successors, (2570), 1992 states have internal predecessors, (2570), 374 states have call successors, (374), 224 states have call predecessors, (374), 224 states have return successors, (374), 361 states have call predecessors, (374), 374 states have call successors, (374) [2023-12-16 17:56:59,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3318 transitions. [2023-12-16 17:56:59,401 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3318 transitions. Word has length 173 [2023-12-16 17:56:59,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:59,401 INFO L495 AbstractCegarLoop]: Abstraction has 2578 states and 3318 transitions. [2023-12-16 17:56:59,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-16 17:56:59,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3318 transitions. [2023-12-16 17:56:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 17:56:59,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:59,404 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:59,412 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 [2023-12-16 17:56:59,606 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 [2023-12-16 17:56:59,607 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:59,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:59,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1415843096, now seen corresponding path program 1 times [2023-12-16 17:56:59,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:59,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836937265] [2023-12-16 17:56:59,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:59,607 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 [2023-12-16 17:56:59,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:59,624 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) [2023-12-16 17:56:59,625 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 [2023-12-16 17:56:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:59,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:59,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:56:59,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:59,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:59,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836937265] [2023-12-16 17:56:59,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836937265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:59,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:59,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:59,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665169422] [2023-12-16 17:56:59,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:59,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:59,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:59,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:59,811 INFO L87 Difference]: Start difference. First operand 2578 states and 3318 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:57:00,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:00,689 INFO L93 Difference]: Finished difference Result 8130 states and 10851 transitions. [2023-12-16 17:57:00,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:57:00,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 172 [2023-12-16 17:57:00,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:00,704 INFO L225 Difference]: With dead ends: 8130 [2023-12-16 17:57:00,704 INFO L226 Difference]: Without dead ends: 5804 [2023-12-16 17:57:00,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:00,708 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 284 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:00,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1830 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:57:00,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5804 states. [2023-12-16 17:57:01,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5804 to 3954. [2023-12-16 17:57:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 2969 states have (on average 1.3001010441226002) internal successors, (3860), 2992 states have internal predecessors, (3860), 632 states have call successors, (632), 352 states have call predecessors, (632), 352 states have return successors, (632), 609 states have call predecessors, (632), 632 states have call successors, (632) [2023-12-16 17:57:01,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5124 transitions. [2023-12-16 17:57:01,251 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5124 transitions. Word has length 172 [2023-12-16 17:57:01,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:01,252 INFO L495 AbstractCegarLoop]: Abstraction has 3954 states and 5124 transitions. [2023-12-16 17:57:01,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:57:01,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5124 transitions. [2023-12-16 17:57:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 17:57:01,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:01,255 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:01,262 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 [2023-12-16 17:57:01,458 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 [2023-12-16 17:57:01,458 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:01,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:01,458 INFO L85 PathProgramCache]: Analyzing trace with hash 737445535, now seen corresponding path program 1 times [2023-12-16 17:57:01,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:01,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441085999] [2023-12-16 17:57:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:01,459 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 [2023-12-16 17:57:01,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:01,460 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) [2023-12-16 17:57:01,461 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 [2023-12-16 17:57:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:01,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:01,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 61 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:57:01,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 23 proven. 22 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-16 17:57:01,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:01,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441085999] [2023-12-16 17:57:01,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441085999] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:01,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:01,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950051476] [2023-12-16 17:57:01,950 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:01,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:01,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:01,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:01,952 INFO L87 Difference]: Start difference. First operand 3954 states and 5124 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2023-12-16 17:57:03,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:03,634 INFO L93 Difference]: Finished difference Result 11605 states and 15370 transitions. [2023-12-16 17:57:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:57:03,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) Word has length 178 [2023-12-16 17:57:03,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:03,652 INFO L225 Difference]: With dead ends: 11605 [2023-12-16 17:57:03,652 INFO L226 Difference]: Without dead ends: 7903 [2023-12-16 17:57:03,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:57:03,658 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 777 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 2970 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:03,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 2970 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2023-12-16 17:57:04,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 6718. [2023-12-16 17:57:04,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6718 states, 4961 states have (on average 1.3003426728482161) internal successors, (6451), 5004 states have internal predecessors, (6451), 1148 states have call successors, (1148), 608 states have call predecessors, (1148), 608 states have return successors, (1148), 1105 states have call predecessors, (1148), 1148 states have call successors, (1148) [2023-12-16 17:57:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6718 states to 6718 states and 8747 transitions. [2023-12-16 17:57:04,639 INFO L78 Accepts]: Start accepts. Automaton has 6718 states and 8747 transitions. Word has length 178 [2023-12-16 17:57:04,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:04,639 INFO L495 AbstractCegarLoop]: Abstraction has 6718 states and 8747 transitions. [2023-12-16 17:57:04,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2023-12-16 17:57:04,640 INFO L276 IsEmpty]: Start isEmpty. Operand 6718 states and 8747 transitions. [2023-12-16 17:57:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:57:04,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:04,644 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:04,647 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 [2023-12-16 17:57:04,846 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 [2023-12-16 17:57:04,847 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:04,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:04,847 INFO L85 PathProgramCache]: Analyzing trace with hash 484472198, now seen corresponding path program 1 times [2023-12-16 17:57:04,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:04,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69453576] [2023-12-16 17:57:04,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:04,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:04,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:04,849 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) [2023-12-16 17:57:04,876 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 [2023-12-16 17:57:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:04,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:04,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:05,337 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 82 proven. 11 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:05,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-16 17:57:05,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:05,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69453576] [2023-12-16 17:57:05,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69453576] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:05,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:05,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:05,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736322500] [2023-12-16 17:57:05,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:05,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:05,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:05,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:05,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:05,527 INFO L87 Difference]: Start difference. First operand 6718 states and 8747 transitions. Second operand has 14 states, 14 states have (on average 14.357142857142858) internal successors, (201), 14 states have internal predecessors, (201), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:07,786 INFO L93 Difference]: Finished difference Result 14632 states and 19125 transitions. [2023-12-16 17:57:07,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 17:57:07,787 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.357142857142858) internal successors, (201), 14 states have internal predecessors, (201), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 180 [2023-12-16 17:57:07,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:07,802 INFO L225 Difference]: With dead ends: 14632 [2023-12-16 17:57:07,803 INFO L226 Difference]: Without dead ends: 8166 [2023-12-16 17:57:07,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 351 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=667, Unknown=0, NotChecked=0, Total=870 [2023-12-16 17:57:07,811 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 1057 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:07,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 2847 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 17:57:07,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8166 states. [2023-12-16 17:57:08,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8166 to 7521. [2023-12-16 17:57:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7521 states, 5548 states have (on average 1.3001081470800289) internal successors, (7213), 5597 states have internal predecessors, (7213), 1288 states have call successors, (1288), 684 states have call predecessors, (1288), 684 states have return successors, (1288), 1239 states have call predecessors, (1288), 1288 states have call successors, (1288) [2023-12-16 17:57:08,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7521 states to 7521 states and 9789 transitions. [2023-12-16 17:57:08,859 INFO L78 Accepts]: Start accepts. Automaton has 7521 states and 9789 transitions. Word has length 180 [2023-12-16 17:57:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:08,860 INFO L495 AbstractCegarLoop]: Abstraction has 7521 states and 9789 transitions. [2023-12-16 17:57:08,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.357142857142858) internal successors, (201), 14 states have internal predecessors, (201), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 7521 states and 9789 transitions. [2023-12-16 17:57:08,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 17:57:08,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:08,863 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:08,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-16 17:57:09,066 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 [2023-12-16 17:57:09,066 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:09,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:09,066 INFO L85 PathProgramCache]: Analyzing trace with hash 388300157, now seen corresponding path program 1 times [2023-12-16 17:57:09,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:09,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432829141] [2023-12-16 17:57:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:09,067 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 [2023-12-16 17:57:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:09,068 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) [2023-12-16 17:57:09,077 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 [2023-12-16 17:57:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:09,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:09,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 79 proven. 12 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:09,514 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:09,722 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-16 17:57:09,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:09,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432829141] [2023-12-16 17:57:09,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432829141] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:09,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:09,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:09,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761681525] [2023-12-16 17:57:09,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:09,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:09,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:09,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:09,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:09,724 INFO L87 Difference]: Start difference. First operand 7521 states and 9789 transitions. Second operand has 14 states, 14 states have (on average 14.571428571428571) internal successors, (204), 14 states have internal predecessors, (204), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:12,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:12,036 INFO L93 Difference]: Finished difference Result 14957 states and 19546 transitions. [2023-12-16 17:57:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 17:57:12,036 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.571428571428571) internal successors, (204), 14 states have internal predecessors, (204), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 181 [2023-12-16 17:57:12,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:12,051 INFO L225 Difference]: With dead ends: 14957 [2023-12-16 17:57:12,052 INFO L226 Difference]: Without dead ends: 7688 [2023-12-16 17:57:12,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 355 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 17:57:12,062 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 1261 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:12,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 2646 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 17:57:12,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2023-12-16 17:57:13,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 7550. [2023-12-16 17:57:13,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7550 states, 5577 states have (on average 1.2999820692128385) internal successors, (7250), 5626 states have internal predecessors, (7250), 1288 states have call successors, (1288), 684 states have call predecessors, (1288), 684 states have return successors, (1288), 1239 states have call predecessors, (1288), 1288 states have call successors, (1288) [2023-12-16 17:57:13,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7550 states to 7550 states and 9826 transitions. [2023-12-16 17:57:13,123 INFO L78 Accepts]: Start accepts. Automaton has 7550 states and 9826 transitions. Word has length 181 [2023-12-16 17:57:13,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:13,123 INFO L495 AbstractCegarLoop]: Abstraction has 7550 states and 9826 transitions. [2023-12-16 17:57:13,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.571428571428571) internal successors, (204), 14 states have internal predecessors, (204), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 7550 states and 9826 transitions. [2023-12-16 17:57:13,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:57:13,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:13,127 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:13,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-16 17:57:13,328 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 [2023-12-16 17:57:13,329 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:13,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:13,329 INFO L85 PathProgramCache]: Analyzing trace with hash 423620756, now seen corresponding path program 1 times [2023-12-16 17:57:13,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:13,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144627002] [2023-12-16 17:57:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:13,330 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 [2023-12-16 17:57:13,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:13,333 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) [2023-12-16 17:57:13,335 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 [2023-12-16 17:57:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:13,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:13,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:13,524 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:13,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:13,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144627002] [2023-12-16 17:57:13,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144627002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:13,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:13,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:13,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392303890] [2023-12-16 17:57:13,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:13,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:13,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:13,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:13,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:13,528 INFO L87 Difference]: Start difference. First operand 7550 states and 9826 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:15,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:15,147 INFO L93 Difference]: Finished difference Result 16532 states and 22091 transitions. [2023-12-16 17:57:15,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:57:15,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 180 [2023-12-16 17:57:15,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:15,166 INFO L225 Difference]: With dead ends: 16532 [2023-12-16 17:57:15,166 INFO L226 Difference]: Without dead ends: 9234 [2023-12-16 17:57:15,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:57:15,175 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 543 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:15,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 1241 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:57:15,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9234 states. [2023-12-16 17:57:16,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9234 to 7538. [2023-12-16 17:57:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7538 states, 5565 states have (on average 1.296316262353998) internal successors, (7214), 5614 states have internal predecessors, (7214), 1288 states have call successors, (1288), 684 states have call predecessors, (1288), 684 states have return successors, (1288), 1239 states have call predecessors, (1288), 1288 states have call successors, (1288) [2023-12-16 17:57:16,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7538 states to 7538 states and 9790 transitions. [2023-12-16 17:57:16,409 INFO L78 Accepts]: Start accepts. Automaton has 7538 states and 9790 transitions. Word has length 180 [2023-12-16 17:57:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:16,410 INFO L495 AbstractCegarLoop]: Abstraction has 7538 states and 9790 transitions. [2023-12-16 17:57:16,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:16,411 INFO L276 IsEmpty]: Start isEmpty. Operand 7538 states and 9790 transitions. [2023-12-16 17:57:16,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 17:57:16,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:16,415 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:16,417 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 [2023-12-16 17:57:16,617 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 [2023-12-16 17:57:16,618 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:16,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1735651666, now seen corresponding path program 1 times [2023-12-16 17:57:16,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:16,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119177445] [2023-12-16 17:57:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:16,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:16,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:16,620 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) [2023-12-16 17:57:16,634 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 (40)] Waiting until timeout for monitored process [2023-12-16 17:57:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:16,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:16,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:16,806 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 17:57:16,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:16,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:16,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119177445] [2023-12-16 17:57:16,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119177445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:16,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:16,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:16,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911947880] [2023-12-16 17:57:16,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:16,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:16,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:16,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:16,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:16,807 INFO L87 Difference]: Start difference. First operand 7538 states and 9790 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:57:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:18,242 INFO L93 Difference]: Finished difference Result 15592 states and 20501 transitions. [2023-12-16 17:57:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:57:18,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2023-12-16 17:57:18,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:18,257 INFO L225 Difference]: With dead ends: 15592 [2023-12-16 17:57:18,258 INFO L226 Difference]: Without dead ends: 8278 [2023-12-16 17:57:18,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:57:18,264 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 458 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:18,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1647 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:57:18,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8278 states. [2023-12-16 17:57:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8278 to 7538. [2023-12-16 17:57:19,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7538 states, 5565 states have (on average 1.2932614555256066) internal successors, (7197), 5614 states have internal predecessors, (7197), 1288 states have call successors, (1288), 684 states have call predecessors, (1288), 684 states have return successors, (1288), 1239 states have call predecessors, (1288), 1288 states have call successors, (1288) [2023-12-16 17:57:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7538 states to 7538 states and 9773 transitions. [2023-12-16 17:57:19,374 INFO L78 Accepts]: Start accepts. Automaton has 7538 states and 9773 transitions. Word has length 182 [2023-12-16 17:57:19,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:19,374 INFO L495 AbstractCegarLoop]: Abstraction has 7538 states and 9773 transitions. [2023-12-16 17:57:19,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:57:19,375 INFO L276 IsEmpty]: Start isEmpty. Operand 7538 states and 9773 transitions. [2023-12-16 17:57:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 17:57:19,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:19,379 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:19,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-16 17:57:19,582 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 [2023-12-16 17:57:19,582 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:19,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:19,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1624917092, now seen corresponding path program 1 times [2023-12-16 17:57:19,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:19,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117627882] [2023-12-16 17:57:19,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:19,583 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 [2023-12-16 17:57:19,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:19,584 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) [2023-12-16 17:57:19,587 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 [2023-12-16 17:57:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:19,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:19,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:19,888 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 39 proven. 58 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 17:57:19,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-16 17:57:20,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117627882] [2023-12-16 17:57:20,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117627882] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:20,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:20,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:20,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979445731] [2023-12-16 17:57:20,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:20,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:20,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:20,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:20,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:20,024 INFO L87 Difference]: Start difference. First operand 7538 states and 9773 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:21,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:21,523 INFO L93 Difference]: Finished difference Result 15157 states and 19609 transitions. [2023-12-16 17:57:21,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:57:21,523 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 183 [2023-12-16 17:57:21,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:21,539 INFO L225 Difference]: With dead ends: 15157 [2023-12-16 17:57:21,540 INFO L226 Difference]: Without dead ends: 7871 [2023-12-16 17:57:21,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:57:21,548 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 827 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:21,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1870 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:57:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7871 states. [2023-12-16 17:57:22,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7871 to 5902. [2023-12-16 17:57:22,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 4392 states have (on average 1.2884790528233152) internal successors, (5659), 4430 states have internal predecessors, (5659), 970 states have call successors, (970), 539 states have call predecessors, (970), 539 states have return successors, (970), 932 states have call predecessors, (970), 970 states have call successors, (970) [2023-12-16 17:57:22,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 7599 transitions. [2023-12-16 17:57:22,446 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 7599 transitions. Word has length 183 [2023-12-16 17:57:22,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:22,446 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 7599 transitions. [2023-12-16 17:57:22,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:22,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 7599 transitions. [2023-12-16 17:57:22,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 17:57:22,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:22,449 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 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] [2023-12-16 17:57:22,451 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 (41)] Ended with exit code 0 [2023-12-16 17:57:22,651 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 [2023-12-16 17:57:22,652 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:22,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1239355003, now seen corresponding path program 1 times [2023-12-16 17:57:22,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:22,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137044716] [2023-12-16 17:57:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:22,653 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 [2023-12-16 17:57:22,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:22,654 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) [2023-12-16 17:57:22,656 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 [2023-12-16 17:57:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:22,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:57:22,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 17:57:22,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:22,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:22,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137044716] [2023-12-16 17:57:22,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137044716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:22,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:22,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:57:22,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225954490] [2023-12-16 17:57:22,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:22,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:57:22,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:22,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:57:22,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:57:22,856 INFO L87 Difference]: Start difference. First operand 5902 states and 7599 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:23,920 INFO L93 Difference]: Finished difference Result 12890 states and 16702 transitions. [2023-12-16 17:57:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:57:23,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 182 [2023-12-16 17:57:23,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:23,933 INFO L225 Difference]: With dead ends: 12890 [2023-12-16 17:57:23,934 INFO L226 Difference]: Without dead ends: 7240 [2023-12-16 17:57:23,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:57:23,953 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 167 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:23,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1032 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:57:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2023-12-16 17:57:24,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 6947. [2023-12-16 17:57:24,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6947 states, 5160 states have (on average 1.2881782945736433) internal successors, (6647), 5205 states have internal predecessors, (6647), 1151 states have call successors, (1151), 635 states have call predecessors, (1151), 635 states have return successors, (1151), 1106 states have call predecessors, (1151), 1151 states have call successors, (1151) [2023-12-16 17:57:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6947 states to 6947 states and 8949 transitions. [2023-12-16 17:57:24,950 INFO L78 Accepts]: Start accepts. Automaton has 6947 states and 8949 transitions. Word has length 182 [2023-12-16 17:57:24,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:24,950 INFO L495 AbstractCegarLoop]: Abstraction has 6947 states and 8949 transitions. [2023-12-16 17:57:24,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6947 states and 8949 transitions. [2023-12-16 17:57:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-16 17:57:24,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:24,953 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:24,956 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 (42)] Ended with exit code 0 [2023-12-16 17:57:25,156 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 [2023-12-16 17:57:25,156 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:25,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:25,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1398986961, now seen corresponding path program 1 times [2023-12-16 17:57:25,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:25,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160774885] [2023-12-16 17:57:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:25,157 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 [2023-12-16 17:57:25,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:25,158 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) [2023-12-16 17:57:25,168 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 (43)] Waiting until timeout for monitored process [2023-12-16 17:57:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:25,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:25,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:57:25,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:25,576 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 19 proven. 18 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-16 17:57:25,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:25,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160774885] [2023-12-16 17:57:25,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160774885] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:25,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:25,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:25,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002490358] [2023-12-16 17:57:25,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:25,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:25,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:25,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:25,579 INFO L87 Difference]: Start difference. First operand 6947 states and 8949 transitions. Second operand has 10 states, 10 states have (on average 17.6) internal successors, (176), 9 states have internal predecessors, (176), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:27,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:27,643 INFO L93 Difference]: Finished difference Result 16169 states and 20902 transitions. [2023-12-16 17:57:27,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:57:27,643 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 9 states have internal predecessors, (176), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) Word has length 186 [2023-12-16 17:57:27,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:27,662 INFO L225 Difference]: With dead ends: 16169 [2023-12-16 17:57:27,662 INFO L226 Difference]: Without dead ends: 9474 [2023-12-16 17:57:27,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:57:27,670 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 1281 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:27,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 2227 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:27,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9474 states. [2023-12-16 17:57:28,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9474 to 6947. [2023-12-16 17:57:28,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6947 states, 5160 states have (on average 1.283139534883721) internal successors, (6621), 5205 states have internal predecessors, (6621), 1151 states have call successors, (1151), 635 states have call predecessors, (1151), 635 states have return successors, (1151), 1106 states have call predecessors, (1151), 1151 states have call successors, (1151) [2023-12-16 17:57:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6947 states to 6947 states and 8923 transitions. [2023-12-16 17:57:28,882 INFO L78 Accepts]: Start accepts. Automaton has 6947 states and 8923 transitions. Word has length 186 [2023-12-16 17:57:28,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:28,883 INFO L495 AbstractCegarLoop]: Abstraction has 6947 states and 8923 transitions. [2023-12-16 17:57:28,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 9 states have internal predecessors, (176), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand 6947 states and 8923 transitions. [2023-12-16 17:57:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-16 17:57:28,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:28,886 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:28,889 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 (43)] Ended with exit code 0 [2023-12-16 17:57:29,088 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 [2023-12-16 17:57:29,089 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:29,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:29,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1929266628, now seen corresponding path program 1 times [2023-12-16 17:57:29,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:29,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74259756] [2023-12-16 17:57:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:29,089 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 [2023-12-16 17:57:29,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:29,091 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) [2023-12-16 17:57:29,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-16 17:57:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:29,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:29,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 45 proven. 62 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:57:29,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-16 17:57:29,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:29,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74259756] [2023-12-16 17:57:29,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74259756] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:29,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:29,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:29,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556206974] [2023-12-16 17:57:29,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:29,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:29,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:29,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:29,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:29,506 INFO L87 Difference]: Start difference. First operand 6947 states and 8923 transitions. Second operand has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 6 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:31,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:31,774 INFO L93 Difference]: Finished difference Result 15652 states and 20661 transitions. [2023-12-16 17:57:31,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:57:31,775 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 6 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) Word has length 186 [2023-12-16 17:57:31,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:31,798 INFO L225 Difference]: With dead ends: 15652 [2023-12-16 17:57:31,798 INFO L226 Difference]: Without dead ends: 8957 [2023-12-16 17:57:31,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:57:31,808 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 970 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:31,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 3098 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:57:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8957 states. [2023-12-16 17:57:32,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8957 to 6487. [2023-12-16 17:57:32,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6487 states, 4824 states have (on average 1.2786069651741294) internal successors, (6168), 4867 states have internal predecessors, (6168), 1049 states have call successors, (1049), 613 states have call predecessors, (1049), 613 states have return successors, (1049), 1006 states have call predecessors, (1049), 1049 states have call successors, (1049) [2023-12-16 17:57:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6487 states to 6487 states and 8266 transitions. [2023-12-16 17:57:32,947 INFO L78 Accepts]: Start accepts. Automaton has 6487 states and 8266 transitions. Word has length 186 [2023-12-16 17:57:32,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:32,948 INFO L495 AbstractCegarLoop]: Abstraction has 6487 states and 8266 transitions. [2023-12-16 17:57:32,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 6 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 6487 states and 8266 transitions. [2023-12-16 17:57:32,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-16 17:57:32,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:32,951 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:32,953 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 [2023-12-16 17:57:33,153 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 [2023-12-16 17:57:33,154 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:33,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:33,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1291905813, now seen corresponding path program 1 times [2023-12-16 17:57:33,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:33,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013627839] [2023-12-16 17:57:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:33,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:33,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:33,156 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) [2023-12-16 17:57:33,165 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 [2023-12-16 17:57:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:33,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:33,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 80 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:57:33,432 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-16 17:57:33,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:33,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013627839] [2023-12-16 17:57:33,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013627839] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:33,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:33,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:33,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035566291] [2023-12-16 17:57:33,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:33,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:33,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:33,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:33,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:33,565 INFO L87 Difference]: Start difference. First operand 6487 states and 8266 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (39), 5 states have call predecessors, (39), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:35,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:35,218 INFO L93 Difference]: Finished difference Result 13854 states and 17859 transitions. [2023-12-16 17:57:35,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:57:35,219 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (39), 5 states have call predecessors, (39), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 189 [2023-12-16 17:57:35,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:35,235 INFO L225 Difference]: With dead ends: 13854 [2023-12-16 17:57:35,236 INFO L226 Difference]: Without dead ends: 7619 [2023-12-16 17:57:35,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:57:35,244 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 744 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:35,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 2481 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:57:35,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7619 states. [2023-12-16 17:57:36,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 6487. [2023-12-16 17:57:36,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6487 states, 4824 states have (on average 1.2759121061359868) internal successors, (6155), 4867 states have internal predecessors, (6155), 1049 states have call successors, (1049), 613 states have call predecessors, (1049), 613 states have return successors, (1049), 1006 states have call predecessors, (1049), 1049 states have call successors, (1049) [2023-12-16 17:57:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6487 states to 6487 states and 8253 transitions. [2023-12-16 17:57:36,290 INFO L78 Accepts]: Start accepts. Automaton has 6487 states and 8253 transitions. Word has length 189 [2023-12-16 17:57:36,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:36,290 INFO L495 AbstractCegarLoop]: Abstraction has 6487 states and 8253 transitions. [2023-12-16 17:57:36,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (39), 5 states have call predecessors, (39), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:36,290 INFO L276 IsEmpty]: Start isEmpty. Operand 6487 states and 8253 transitions. [2023-12-16 17:57:36,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-16 17:57:36,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:36,293 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 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, 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] [2023-12-16 17:57:36,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2023-12-16 17:57:36,495 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 [2023-12-16 17:57:36,495 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:36,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash -903385110, now seen corresponding path program 1 times [2023-12-16 17:57:36,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:36,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653012959] [2023-12-16 17:57:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:36,496 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 [2023-12-16 17:57:36,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:36,497 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) [2023-12-16 17:57:36,501 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 [2023-12-16 17:57:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:36,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:36,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-16 17:57:36,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:36,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:36,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653012959] [2023-12-16 17:57:36,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653012959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:36,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:36,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:36,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346926510] [2023-12-16 17:57:36,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:36,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:36,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:36,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:36,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:36,693 INFO L87 Difference]: Start difference. First operand 6487 states and 8253 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 17:57:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:38,627 INFO L93 Difference]: Finished difference Result 16955 states and 22011 transitions. [2023-12-16 17:57:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:57:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 191 [2023-12-16 17:57:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:38,648 INFO L225 Difference]: With dead ends: 16955 [2023-12-16 17:57:38,648 INFO L226 Difference]: Without dead ends: 10720 [2023-12-16 17:57:38,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:38,656 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 203 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:38,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 2387 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:57:38,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10720 states. [2023-12-16 17:57:40,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10720 to 8146. [2023-12-16 17:57:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8146 states, 6020 states have (on average 1.273421926910299) internal successors, (7666), 6076 states have internal predecessors, (7666), 1349 states have call successors, (1349), 776 states have call predecessors, (1349), 776 states have return successors, (1349), 1293 states have call predecessors, (1349), 1349 states have call successors, (1349) [2023-12-16 17:57:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8146 states to 8146 states and 10364 transitions. [2023-12-16 17:57:40,079 INFO L78 Accepts]: Start accepts. Automaton has 8146 states and 10364 transitions. Word has length 191 [2023-12-16 17:57:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:40,080 INFO L495 AbstractCegarLoop]: Abstraction has 8146 states and 10364 transitions. [2023-12-16 17:57:40,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 17:57:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8146 states and 10364 transitions. [2023-12-16 17:57:40,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-16 17:57:40,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:40,084 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 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, 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] [2023-12-16 17:57:40,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2023-12-16 17:57:40,286 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 [2023-12-16 17:57:40,286 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:40,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:40,287 INFO L85 PathProgramCache]: Analyzing trace with hash 446617501, now seen corresponding path program 1 times [2023-12-16 17:57:40,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:40,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235281928] [2023-12-16 17:57:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:40,287 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 [2023-12-16 17:57:40,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:40,288 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) [2023-12-16 17:57:40,290 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 [2023-12-16 17:57:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:40,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:40,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 99 proven. 22 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-16 17:57:40,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-12-16 17:57:40,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:40,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235281928] [2023-12-16 17:57:40,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235281928] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:40,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:40,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-16 17:57:40,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202094021] [2023-12-16 17:57:40,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:40,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:40,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:40,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:40,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:40,742 INFO L87 Difference]: Start difference. First operand 8146 states and 10364 transitions. Second operand has 10 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 5 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) Received shutdown request... [2023-12-16 17:57:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 17:57:42,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 381 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:57:42,066 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 687 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:42,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1620 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:42,067 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:57:42,073 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 [2023-12-16 17:57:42,114 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 (47)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:57:42,114 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 [2023-12-16 17:57:42,270 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 [2023-12-16 17:57:42,271 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (8146states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (9700 states constructed, input type IntersectNwa). [2023-12-16 17:57:42,275 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 17:57:42,276 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:57:42,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:57:42 BoogieIcfgContainer [2023-12-16 17:57:42,278 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:57:42,278 INFO L158 Benchmark]: Toolchain (without parser) took 70850.59ms. Allocated memory was 226.5MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 186.1MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 17:57:42,278 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:57:42,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.21ms. Allocated memory is still 226.5MB. Free memory was 186.1MB in the beginning and 167.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-16 17:57:42,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.09ms. Allocated memory is still 226.5MB. Free memory was 167.3MB in the beginning and 164.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 17:57:42,278 INFO L158 Benchmark]: Boogie Preprocessor took 72.29ms. Allocated memory is still 226.5MB. Free memory was 164.1MB in the beginning and 160.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 17:57:42,278 INFO L158 Benchmark]: RCFGBuilder took 676.73ms. Allocated memory is still 226.5MB. Free memory was 159.9MB in the beginning and 189.9MB in the end (delta: -30.0MB). Peak memory consumption was 47.1MB. Max. memory is 8.0GB. [2023-12-16 17:57:42,278 INFO L158 Benchmark]: TraceAbstraction took 69782.75ms. Allocated memory was 226.5MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 189.4MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 17:57:42,279 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 188.7MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 274.21ms. Allocated memory is still 226.5MB. Free memory was 186.1MB in the beginning and 167.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.09ms. Allocated memory is still 226.5MB. Free memory was 167.3MB in the beginning and 164.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.29ms. Allocated memory is still 226.5MB. Free memory was 164.1MB in the beginning and 160.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 676.73ms. Allocated memory is still 226.5MB. Free memory was 159.9MB in the beginning and 189.9MB in the end (delta: -30.0MB). Peak memory consumption was 47.1MB. Max. memory is 8.0GB. * TraceAbstraction took 69782.75ms. Allocated memory was 226.5MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 189.4MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. 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: 614]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 614). Cancelled while NwaCegarLoop was constructing difference of abstraction (8146states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (9700 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 163 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.7s, OverallIterations: 46, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 31.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19119 SdHoareTripleChecker+Valid, 9.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18925 mSDsluCounter, 65547 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50732 mSDsCounter, 4234 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12425 IncrementalHoareTripleChecker+Invalid, 16659 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4234 mSolverCounterUnsat, 14815 mSDtfsCounter, 12425 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8511 GetRequests, 7994 SyntacticMatches, 23 SemanticMatches, 494 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1659 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8146occurred in iteration=45, InterpolantAutomatonStates: 444, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.1s AutomataMinimizationTime, 45 MinimizatonAttempts, 21260 StatesRemovedByMinimization, 40 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 5334 NumberOfCodeBlocks, 5334 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 8152 ConstructedInterpolants, 0 QuantifiedInterpolants, 24614 SizeOfPredicates, 85 NumberOfNonLiveVariables, 12639 ConjunctsInSsa, 252 ConjunctsInUnsatCore, 65 InterpolantComputations, 32 PerfectInterpolantSequences, 4105/4721 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